Arg, what a mess. I'll fix when I get home. Gary On Jan 16, 2016 9:36 AM, "Matt Benson" <gudnabr...@gmail.com> wrote:
> It appears the whole file changed; why is that? I can't tell what was > actually done. > > Matt > On Jan 15, 2016 6:33 PM, <ggreg...@apache.org> wrote: > > > Repository: commons-lang > > Updated Branches: > > refs/heads/master 7429e75b7 -> 18f5f54ca > > > > > > Simplify, less clutter. > > > > Project: http://git-wip-us.apache.org/repos/asf/commons-lang/repo > > Commit: > > http://git-wip-us.apache.org/repos/asf/commons-lang/commit/18f5f54c > > Tree: http://git-wip-us.apache.org/repos/asf/commons-lang/tree/18f5f54c > > Diff: http://git-wip-us.apache.org/repos/asf/commons-lang/diff/18f5f54c > > > > Branch: refs/heads/master > > Commit: 18f5f54ca0e78df12586e0750e257058746a5a39 > > Parents: 7429e75 > > Author: ggregory <ggreg...@apache.org> > > Authored: Fri Jan 15 16:33:07 2016 -0800 > > Committer: ggregory <ggreg...@apache.org> > > Committed: Fri Jan 15 16:33:07 2016 -0800 > > > > ---------------------------------------------------------------------- > > .../org/apache/commons/lang3/BooleanUtils.java | 2212 > +++++++++--------- > > 1 file changed, 1104 insertions(+), 1108 deletions(-) > > ---------------------------------------------------------------------- > > > > > > > > > http://git-wip-us.apache.org/repos/asf/commons-lang/blob/18f5f54c/src/main/java/org/apache/commons/lang3/BooleanUtils.java > > ---------------------------------------------------------------------- > > diff --git a/src/main/java/org/apache/commons/lang3/BooleanUtils.java > > b/src/main/java/org/apache/commons/lang3/BooleanUtils.java > > index ba5dea0..5d49c2c 100644 > > --- a/src/main/java/org/apache/commons/lang3/BooleanUtils.java > > +++ b/src/main/java/org/apache/commons/lang3/BooleanUtils.java > > @@ -1,1108 +1,1104 @@ > > -/* > > - * Licensed to the Apache Software Foundation (ASF) under one or more > > - * contributor license agreements. See the NOTICE file distributed with > > - * this work for additional information regarding copyright ownership. > > - * The ASF licenses this file to You under the Apache License, Version > 2.0 > > - * (the "License"); you may not use this file except in compliance with > > - * the License. You may obtain a copy of the License at > > - * > > - * http://www.apache.org/licenses/LICENSE-2.0 > > - * > > - * Unless required by applicable law or agreed to in writing, software > > - * distributed under the License is distributed on an "AS IS" BASIS, > > - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or > > implied. > > - * See the License for the specific language governing permissions and > > - * limitations under the License. > > - */ > > -package org.apache.commons.lang3; > > - > > -import org.apache.commons.lang3.math.NumberUtils; > > - > > -/** > > - * <p>Operations on boolean primitives and Boolean objects.</p> > > - * > > - * <p>This class tries to handle {@code null} input gracefully. > > - * An exception will not be thrown for a {@code null} input. > > - * Each method documents its behaviour in more detail.</p> > > - * > > - * <p>#ThreadSafe#</p> > > - * @since 2.0 > > - */ > > -public class BooleanUtils { > > - > > - /** > > - * <p>{@code BooleanUtils} instances should NOT be constructed in > > standard programming. > > - * Instead, the class should be used as {@code > > BooleanUtils.negate(true);}.</p> > > - * > > - * <p>This constructor is public to permit tools that require a > > JavaBean instance > > - * to operate.</p> > > - */ > > - public BooleanUtils() { > > - super(); > > - } > > - > > - // Boolean utilities > > - > > > //-------------------------------------------------------------------------- > > - /** > > - * <p>Negates the specified boolean.</p> > > - * > > - * <p>If {@code null} is passed in, {@code null} will be > returned.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * BooleanUtils.negate(Boolean.TRUE) = Boolean.FALSE; > > - * BooleanUtils.negate(Boolean.FALSE) = Boolean.TRUE; > > - * BooleanUtils.negate(null) = null; > > - * </pre> > > - * > > - * @param bool the Boolean to negate, may be null > > - * @return the negated Boolean, or {@code null} if {@code null} > input > > - */ > > - public static Boolean negate(final Boolean bool) { > > - if (bool == null) { > > - return null; > > - } > > - return bool.booleanValue() ? Boolean.FALSE : Boolean.TRUE; > > - } > > - > > - // boolean Boolean methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Checks if a {@code Boolean} value is {@code true}, > > - * handling {@code null} by returning {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.isTrue(Boolean.TRUE) = true > > - * BooleanUtils.isTrue(Boolean.FALSE) = false > > - * BooleanUtils.isTrue(null) = false > > - * </pre> > > - * > > - * @param bool the boolean to check, null returns {@code false} > > - * @return {@code true} only if the input is non-null and true > > - * @since 2.1 > > - */ > > - public static boolean isTrue(final Boolean bool) { > > - return Boolean.TRUE.equals(bool); > > - } > > - > > - /** > > - * <p>Checks if a {@code Boolean} value is <i>not</i> {@code true}, > > - * handling {@code null} by returning {@code true}.</p> > > - * > > - * <pre> > > - * BooleanUtils.isNotTrue(Boolean.TRUE) = false > > - * BooleanUtils.isNotTrue(Boolean.FALSE) = true > > - * BooleanUtils.isNotTrue(null) = true > > - * </pre> > > - * > > - * @param bool the boolean to check, null returns {@code true} > > - * @return {@code true} if the input is null or false > > - * @since 2.3 > > - */ > > - public static boolean isNotTrue(final Boolean bool) { > > - return !isTrue(bool); > > - } > > - > > - /** > > - * <p>Checks if a {@code Boolean} value is {@code false}, > > - * handling {@code null} by returning {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.isFalse(Boolean.TRUE) = false > > - * BooleanUtils.isFalse(Boolean.FALSE) = true > > - * BooleanUtils.isFalse(null) = false > > - * </pre> > > - * > > - * @param bool the boolean to check, null returns {@code false} > > - * @return {@code true} only if the input is non-null and false > > - * @since 2.1 > > - */ > > - public static boolean isFalse(final Boolean bool) { > > - return Boolean.FALSE.equals(bool); > > - } > > - > > - /** > > - * <p>Checks if a {@code Boolean} value is <i>not</i> {@code false}, > > - * handling {@code null} by returning {@code true}.</p> > > - * > > - * <pre> > > - * BooleanUtils.isNotFalse(Boolean.TRUE) = true > > - * BooleanUtils.isNotFalse(Boolean.FALSE) = false > > - * BooleanUtils.isNotFalse(null) = true > > - * </pre> > > - * > > - * @param bool the boolean to check, null returns {@code true} > > - * @return {@code true} if the input is null or true > > - * @since 2.3 > > - */ > > - public static boolean isNotFalse(final Boolean bool) { > > - return !isFalse(bool); > > - } > > - > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a Boolean to a boolean handling {@code null} > > - * by returning {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(Boolean.TRUE) = true > > - * BooleanUtils.toBoolean(Boolean.FALSE) = false > > - * BooleanUtils.toBoolean(null) = false > > - * </pre> > > - * > > - * @param bool the boolean to convert > > - * @return {@code true} or {@code false}, {@code null} returns > {@code > > false} > > - */ > > - public static boolean toBoolean(final Boolean bool) { > > - return bool != null && bool.booleanValue(); > > - } > > - > > - /** > > - * <p>Converts a Boolean to a boolean handling {@code null}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBooleanDefaultIfNull(Boolean.TRUE, false) = true > > - * BooleanUtils.toBooleanDefaultIfNull(Boolean.FALSE, true) = > false > > - * BooleanUtils.toBooleanDefaultIfNull(null, true) = true > > - * </pre> > > - * > > - * @param bool the boolean to convert > > - * @param valueIfNull the boolean value to return if {@code null} > > - * @return {@code true} or {@code false} > > - */ > > - public static boolean toBooleanDefaultIfNull(final Boolean bool, > > final boolean valueIfNull) { > > - if (bool == null) { > > - return valueIfNull; > > - } > > - return bool.booleanValue(); > > - } > > - > > - // Integer to Boolean methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts an int to a boolean using the convention that {@code > > zero} > > - * is {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(0) = false > > - * BooleanUtils.toBoolean(1) = true > > - * BooleanUtils.toBoolean(2) = true > > - * </pre> > > - * > > - * @param value the int to convert > > - * @return {@code true} if non-zero, {@code false} > > - * if zero > > - */ > > - public static boolean toBoolean(final int value) { > > - return value != 0; > > - } > > - > > - /** > > - * <p>Converts an int to a Boolean using the convention that {@code > > zero} > > - * is {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(0) = Boolean.FALSE > > - * BooleanUtils.toBoolean(1) = Boolean.TRUE > > - * BooleanUtils.toBoolean(2) = Boolean.TRUE > > - * </pre> > > - * > > - * @param value the int to convert > > - * @return Boolean.TRUE if non-zero, Boolean.FALSE if zero, > > - * {@code null} if {@code null} > > - */ > > - public static Boolean toBooleanObject(final int value) { > > - return value == 0 ? Boolean.FALSE : Boolean.TRUE; > > - } > > - > > - /** > > - * <p>Converts an Integer to a Boolean using the convention that > > {@code zero} > > - * is {@code false}.</p> > > - * > > - * <p>{@code null} will be converted to {@code null}.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(Integer.valueOf(0)) = Boolean.FALSE > > - * BooleanUtils.toBoolean(Integer.valueOf(1)) = Boolean.TRUE > > - * BooleanUtils.toBoolean(Integer.valueOf(null)) = null > > - * </pre> > > - * > > - * @param value the Integer to convert > > - * @return Boolean.TRUE if non-zero, Boolean.FALSE if zero, > > - * {@code null} if {@code null} input > > - */ > > - public static Boolean toBooleanObject(final Integer value) { > > - if (value == null) { > > - return null; > > - } > > - return value.intValue() == 0 ? Boolean.FALSE : Boolean.TRUE; > > - } > > - > > - /** > > - * <p>Converts an int to a boolean specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(0, 1, 0) = false > > - * BooleanUtils.toBoolean(1, 1, 0) = true > > - * BooleanUtils.toBoolean(2, 1, 2) = false > > - * BooleanUtils.toBoolean(2, 2, 0) = true > > - * </pre> > > - * > > - * @param value the Integer to convert > > - * @param trueValue the value to match for {@code true} > > - * @param falseValue the value to match for {@code false} > > - * @return {@code true} or {@code false} > > - * @throws IllegalArgumentException if no match > > - */ > > - public static boolean toBoolean(final int value, final int > trueValue, > > final int falseValue) { > > - if (value == trueValue) { > > - return true; > > - } > > - if (value == falseValue) { > > - return false; > > - } > > - // no match > > - throw new IllegalArgumentException("The Integer did not match > > either specified value"); > > - } > > - > > - /** > > - * <p>Converts an Integer to a boolean specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(Integer.valueOf(0), Integer.valueOf(1), > > Integer.valueOf(0)) = false > > - * BooleanUtils.toBoolean(Integer.valueOf(1), Integer.valueOf(1), > > Integer.valueOf(0)) = true > > - * BooleanUtils.toBoolean(Integer.valueOf(2), Integer.valueOf(1), > > Integer.valueOf(2)) = false > > - * BooleanUtils.toBoolean(Integer.valueOf(2), Integer.valueOf(2), > > Integer.valueOf(0)) = true > > - * BooleanUtils.toBoolean(null, null, Integer.valueOf(0)) > > = true > > - * </pre> > > - * > > - * @param value the Integer to convert > > - * @param trueValue the value to match for {@code true}, may be > > {@code null} > > - * @param falseValue the value to match for {@code false}, may be > > {@code null} > > - * @return {@code true} or {@code false} > > - * @throws IllegalArgumentException if no match > > - */ > > - public static boolean toBoolean(final Integer value, final Integer > > trueValue, final Integer falseValue) { > > - if (value == null) { > > - if (trueValue == null) { > > - return true; > > - } > > - if (falseValue == null) { > > - return false; > > - } > > - } else if (value.equals(trueValue)) { > > - return true; > > - } else if (value.equals(falseValue)) { > > - return false; > > - } > > - // no match > > - throw new IllegalArgumentException("The Integer did not match > > either specified value"); > > - } > > - > > - /** > > - * <p>Converts an int to a Boolean specifying the conversion > > values.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * BooleanUtils.toBooleanObject(0, 0, 2, 3) = Boolean.TRUE > > - * BooleanUtils.toBooleanObject(2, 1, 2, 3) = Boolean.FALSE > > - * BooleanUtils.toBooleanObject(3, 1, 2, 3) = null > > - * </pre> > > - * > > - * @param value the Integer to convert > > - * @param trueValue the value to match for {@code true} > > - * @param falseValue the value to match for {@code false} > > - * @param nullValue the value to to match for {@code null} > > - * @return Boolean.TRUE, Boolean.FALSE, or {@code null} > > - * @throws IllegalArgumentException if no match > > - */ > > - public static Boolean toBooleanObject(final int value, final int > > trueValue, final int falseValue, final int nullValue) { > > - if (value == trueValue) { > > - return Boolean.TRUE; > > - } > > - if (value == falseValue) { > > - return Boolean.FALSE; > > - } > > - if (value == nullValue) { > > - return null; > > - } > > - // no match > > - throw new IllegalArgumentException("The Integer did not match > any > > specified value"); > > - } > > - > > - /** > > - * <p>Converts an Integer to a Boolean specifying the conversion > > values.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * BooleanUtils.toBooleanObject(Integer.valueOf(0), > > Integer.valueOf(0), Integer.valueOf(2), Integer.valueOf(3)) = > Boolean.TRUE > > - * BooleanUtils.toBooleanObject(Integer.valueOf(2), > > Integer.valueOf(1), Integer.valueOf(2), Integer.valueOf(3)) = > Boolean.FALSE > > - * BooleanUtils.toBooleanObject(Integer.valueOf(3), > > Integer.valueOf(1), Integer.valueOf(2), Integer.valueOf(3)) = null > > - * </pre> > > - * > > - * @param value the Integer to convert > > - * @param trueValue the value to match for {@code true}, may be > > {@code null} > > - * @param falseValue the value to match for {@code false}, may be > > {@code null} > > - * @param nullValue the value to to match for {@code null}, may be > > {@code null} > > - * @return Boolean.TRUE, Boolean.FALSE, or {@code null} > > - * @throws IllegalArgumentException if no match > > - */ > > - public static Boolean toBooleanObject(final Integer value, final > > Integer trueValue, final Integer falseValue, final Integer nullValue) { > > - if (value == null) { > > - if (trueValue == null) { > > - return Boolean.TRUE; > > - } > > - if (falseValue == null) { > > - return Boolean.FALSE; > > - } > > - if (nullValue == null) { > > - return null; > > - } > > - } else if (value.equals(trueValue)) { > > - return Boolean.TRUE; > > - } else if (value.equals(falseValue)) { > > - return Boolean.FALSE; > > - } else if (value.equals(nullValue)) { > > - return null; > > - } > > - // no match > > - throw new IllegalArgumentException("The Integer did not match > any > > specified value"); > > - } > > - > > - // Boolean to Integer methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a boolean to an int using the convention that > > - * {@code zero} is {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toInteger(true) = 1 > > - * BooleanUtils.toInteger(false) = 0 > > - * </pre> > > - * > > - * @param bool the boolean to convert > > - * @return one if {@code true}, zero if {@code false} > > - */ > > - public static int toInteger(final boolean bool) { > > - return bool ? 1 : 0; > > - } > > - > > - /** > > - * <p>Converts a boolean to an Integer using the convention that > > - * {@code zero} is {@code false}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toIntegerObject(true) = Integer.valueOf(1) > > - * BooleanUtils.toIntegerObject(false) = Integer.valueOf(0) > > - * </pre> > > - * > > - * @param bool the boolean to convert > > - * @return one if {@code true}, zero if {@code false} > > - */ > > - public static Integer toIntegerObject(final boolean bool) { > > - return bool ? NumberUtils.INTEGER_ONE : > NumberUtils.INTEGER_ZERO; > > - } > > - > > - /** > > - * <p>Converts a Boolean to a Integer using the convention that > > - * {@code zero} is {@code false}.</p> > > - * > > - * <p>{@code null} will be converted to {@code null}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toIntegerObject(Boolean.TRUE) = > Integer.valueOf(1) > > - * BooleanUtils.toIntegerObject(Boolean.FALSE) = > Integer.valueOf(0) > > - * </pre> > > - * > > - * @param bool the Boolean to convert > > - * @return one if Boolean.TRUE, zero if Boolean.FALSE, {@code null} > > if {@code null} > > - */ > > - public static Integer toIntegerObject(final Boolean bool) { > > - if (bool == null) { > > - return null; > > - } > > - return bool.booleanValue() ? NumberUtils.INTEGER_ONE : > > NumberUtils.INTEGER_ZERO; > > - } > > - > > - /** > > - * <p>Converts a boolean to an int specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toInteger(true, 1, 0) = 1 > > - * BooleanUtils.toInteger(false, 1, 0) = 0 > > - * </pre> > > - * > > - * @param bool the to convert > > - * @param trueValue the value to return if {@code true} > > - * @param falseValue the value to return if {@code false} > > - * @return the appropriate value > > - */ > > - public static int toInteger(final boolean bool, final int trueValue, > > final int falseValue) { > > - return bool ? trueValue : falseValue; > > - } > > - > > - /** > > - * <p>Converts a Boolean to an int specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toInteger(Boolean.TRUE, 1, 0, 2) = 1 > > - * BooleanUtils.toInteger(Boolean.FALSE, 1, 0, 2) = 0 > > - * BooleanUtils.toInteger(null, 1, 0, 2) = 2 > > - * </pre> > > - * > > - * @param bool the Boolean to convert > > - * @param trueValue the value to return if {@code true} > > - * @param falseValue the value to return if {@code false} > > - * @param nullValue the value to return if {@code null} > > - * @return the appropriate value > > - */ > > - public static int toInteger(final Boolean bool, final int trueValue, > > final int falseValue, final int nullValue) { > > - if (bool == null) { > > - return nullValue; > > - } > > - return bool.booleanValue() ? trueValue : falseValue; > > - } > > - > > - /** > > - * <p>Converts a boolean to an Integer specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toIntegerObject(true, Integer.valueOf(1), > > Integer.valueOf(0)) = Integer.valueOf(1) > > - * BooleanUtils.toIntegerObject(false, Integer.valueOf(1), > > Integer.valueOf(0)) = Integer.valueOf(0) > > - * </pre> > > - * > > - * @param bool the to convert > > - * @param trueValue the value to return if {@code true}, may be > > {@code null} > > - * @param falseValue the value to return if {@code false}, may be > > {@code null} > > - * @return the appropriate value > > - */ > > - public static Integer toIntegerObject(final boolean bool, final > > Integer trueValue, final Integer falseValue) { > > - return bool ? trueValue : falseValue; > > - } > > - > > - /** > > - * <p>Converts a Boolean to an Integer specifying the conversion > > values.</p> > > - * > > - * <pre> > > - * BooleanUtils.toIntegerObject(Boolean.TRUE, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(1) > > - * BooleanUtils.toIntegerObject(Boolean.FALSE, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(0) > > - * BooleanUtils.toIntegerObject(null, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(2) > > - * </pre> > > - * > > - * @param bool the Boolean to convert > > - * @param trueValue the value to return if {@code true}, may be > > {@code null} > > - * @param falseValue the value to return if {@code false}, may be > > {@code null} > > - * @param nullValue the value to return if {@code null}, may be > > {@code null} > > - * @return the appropriate value > > - */ > > - public static Integer toIntegerObject(final Boolean bool, final > > Integer trueValue, final Integer falseValue, final Integer nullValue) { > > - if (bool == null) { > > - return nullValue; > > - } > > - return bool.booleanValue() ? trueValue : falseValue; > > - } > > - > > - // String to Boolean methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a String to a Boolean.</p> > > - * > > - * <p>{@code 'true'}, {@code 'on'}, {@code 'y'}, {@code 't'} or > > {@code 'yes'} > > - * (case insensitive) will return {@code true}. > > - * {@code 'false'}, {@code 'off'}, {@code 'n'}, {@code 'f'} or > {@code > > 'no'} > > - * (case insensitive) will return {@code false}. > > - * Otherwise, {@code null} is returned.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * // N.B. case is not significant > > - * BooleanUtils.toBooleanObject(null) = null > > - * BooleanUtils.toBooleanObject("true") = Boolean.TRUE > > - * BooleanUtils.toBooleanObject("T") = Boolean.TRUE // i.e. > > T[RUE] > > - * BooleanUtils.toBooleanObject("false") = Boolean.FALSE > > - * BooleanUtils.toBooleanObject("f") = Boolean.FALSE // i.e. > > f[alse] > > - * BooleanUtils.toBooleanObject("No") = Boolean.FALSE > > - * BooleanUtils.toBooleanObject("n") = Boolean.FALSE // i.e. > > n[o] > > - * BooleanUtils.toBooleanObject("on") = Boolean.TRUE > > - * BooleanUtils.toBooleanObject("ON") = Boolean.TRUE > > - * BooleanUtils.toBooleanObject("off") = Boolean.FALSE > > - * BooleanUtils.toBooleanObject("oFf") = Boolean.FALSE > > - * BooleanUtils.toBooleanObject("yes") = Boolean.TRUE > > - * BooleanUtils.toBooleanObject("Y") = Boolean.TRUE // i.e. > > Y[ES] > > - * BooleanUtils.toBooleanObject("blue") = null > > - * BooleanUtils.toBooleanObject("true ") = null // trailing space > > (too long) > > - * BooleanUtils.toBooleanObject("ono") = null // does not match > > on or no > > - * </pre> > > - * > > - * @param str the String to check; upper and lower case are treated > > as the same > > - * @return the Boolean value of the string, {@code null} if no match > > or {@code null} input > > - */ > > - public static Boolean toBooleanObject(final String str) { > > - // Previously used equalsIgnoreCase, which was fast for interned > > 'true'. > > - // Non interned 'true' matched 15 times slower. > > - // > > - // Optimisation provides same performance as before for interned > > 'true'. > > - // Similar performance for null, 'false', and other strings not > > length 2/3/4. > > - // 'true'/'TRUE' match 4 times slower, 'tRUE'/'True' 7 times > > slower. > > - if (str == "true") { > > - return Boolean.TRUE; > > - } > > - if (str == null) { > > - return null; > > - } > > - switch (str.length()) { > > - case 1: { > > - final char ch0 = str.charAt(0); > > - if (ch0 == 'y' || ch0 == 'Y' || > > - ch0 == 't' || ch0 == 'T') { > > - return Boolean.TRUE; > > - } > > - if (ch0 == 'n' || ch0 == 'N' || > > - ch0 == 'f' || ch0 == 'F') { > > - return Boolean.FALSE; > > - } > > - break; > > - } > > - case 2: { > > - final char ch0 = str.charAt(0); > > - final char ch1 = str.charAt(1); > > - if ((ch0 == 'o' || ch0 == 'O') && > > - (ch1 == 'n' || ch1 == 'N') ) { > > - return Boolean.TRUE; > > - } > > - if ((ch0 == 'n' || ch0 == 'N') && > > - (ch1 == 'o' || ch1 == 'O') ) { > > - return Boolean.FALSE; > > - } > > - break; > > - } > > - case 3: { > > - final char ch0 = str.charAt(0); > > - final char ch1 = str.charAt(1); > > - final char ch2 = str.charAt(2); > > - if ((ch0 == 'y' || ch0 == 'Y') && > > - (ch1 == 'e' || ch1 == 'E') && > > - (ch2 == 's' || ch2 == 'S') ) { > > - return Boolean.TRUE; > > - } > > - if ((ch0 == 'o' || ch0 == 'O') && > > - (ch1 == 'f' || ch1 == 'F') && > > - (ch2 == 'f' || ch2 == 'F') ) { > > - return Boolean.FALSE; > > - } > > - break; > > - } > > - case 4: { > > - final char ch0 = str.charAt(0); > > - final char ch1 = str.charAt(1); > > - final char ch2 = str.charAt(2); > > - final char ch3 = str.charAt(3); > > - if ((ch0 == 't' || ch0 == 'T') && > > - (ch1 == 'r' || ch1 == 'R') && > > - (ch2 == 'u' || ch2 == 'U') && > > - (ch3 == 'e' || ch3 == 'E') ) { > > - return Boolean.TRUE; > > - } > > - break; > > - } > > - case 5: { > > - final char ch0 = str.charAt(0); > > - final char ch1 = str.charAt(1); > > - final char ch2 = str.charAt(2); > > - final char ch3 = str.charAt(3); > > - final char ch4 = str.charAt(4); > > - if ((ch0 == 'f' || ch0 == 'F') && > > - (ch1 == 'a' || ch1 == 'A') && > > - (ch2 == 'l' || ch2 == 'L') && > > - (ch3 == 's' || ch3 == 'S') && > > - (ch4 == 'e' || ch4 == 'E') ) { > > - return Boolean.FALSE; > > - } > > - break; > > - } > > - default: > > - break; > > - } > > - > > - return null; > > - } > > - > > - /** > > - * <p>Converts a String to a Boolean throwing an exception if no > > match.</p> > > - * > > - * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > - * > > - * <pre> > > - * BooleanUtils.toBooleanObject("true", "true", "false", "null") > = > > Boolean.TRUE > > - * BooleanUtils.toBooleanObject("false", "true", "false", "null") > = > > Boolean.FALSE > > - * BooleanUtils.toBooleanObject("null", "true", "false", "null") > = > > null > > - * </pre> > > - * > > - * @param str the String to check > > - * @param trueString the String to match for {@code true} (case > > sensitive), may be {@code null} > > - * @param falseString the String to match for {@code false} (case > > sensitive), may be {@code null} > > - * @param nullString the String to match for {@code null} (case > > sensitive), may be {@code null} > > - * @return the Boolean value of the string, {@code null} if either > > the String matches {@code nullString} > > - * or if {@code null} input and {@code nullString} is {@code null} > > - * @throws IllegalArgumentException if the String doesn't match > > - */ > > - public static Boolean toBooleanObject(final String str, final String > > trueString, final String falseString, final String nullString) { > > - if (str == null) { > > - if (trueString == null) { > > - return Boolean.TRUE; > > - } > > - if (falseString == null) { > > - return Boolean.FALSE; > > - } > > - if (nullString == null) { > > - return null; > > - } > > - } else if (str.equals(trueString)) { > > - return Boolean.TRUE; > > - } else if (str.equals(falseString)) { > > - return Boolean.FALSE; > > - } else if (str.equals(nullString)) { > > - return null; > > - } > > - // no match > > - throw new IllegalArgumentException("The String did not match any > > specified value"); > > - } > > - > > - // String to boolean methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a String to a boolean (optimised for > performance).</p> > > - * > > - * <p>{@code 'true'}, {@code 'on'}, {@code 'y'}, {@code 't'} or > > {@code 'yes'} > > - * (case insensitive) will return {@code true}. Otherwise, > > - * {@code false} is returned.</p> > > - * > > - * <p>This method performs 4 times faster (JDK1.4) than > > - * {@code Boolean.valueOf(String)}. However, this method accepts > > - * 'on' and 'yes', 't', 'y' as true values. > > - * > > - * <pre> > > - * BooleanUtils.toBoolean(null) = false > > - * BooleanUtils.toBoolean("true") = true > > - * BooleanUtils.toBoolean("TRUE") = true > > - * BooleanUtils.toBoolean("tRUe") = true > > - * BooleanUtils.toBoolean("on") = true > > - * BooleanUtils.toBoolean("yes") = true > > - * BooleanUtils.toBoolean("false") = false > > - * BooleanUtils.toBoolean("x gti") = false > > - * BooleanUtils.toBooleanObject("y") = true > > - * BooleanUtils.toBooleanObject("n") = false > > - * BooleanUtils.toBooleanObject("t") = true > > - * BooleanUtils.toBooleanObject("f") = false > > - * </pre> > > - * > > - * @param str the String to check > > - * @return the boolean value of the string, {@code false} if no > match > > or the String is null > > - */ > > - public static boolean toBoolean(final String str) { > > - return toBooleanObject(str) == Boolean.TRUE; > > - } > > - > > - /** > > - * <p>Converts a String to a Boolean throwing an exception if no > > match found.</p> > > - * > > - * <pre> > > - * BooleanUtils.toBoolean("true", "true", "false") = true > > - * BooleanUtils.toBoolean("false", "true", "false") = false > > - * </pre> > > - * > > - * @param str the String to check > > - * @param trueString the String to match for {@code true} (case > > sensitive), may be {@code null} > > - * @param falseString the String to match for {@code false} (case > > sensitive), may be {@code null} > > - * @return the boolean value of the string > > - * @throws IllegalArgumentException if the String doesn't match > > - */ > > - public static boolean toBoolean(final String str, final String > > trueString, final String falseString) { > > - if (str == trueString) { > > - return true; > > - } else if (str == falseString) { > > - return false; > > - } else if (str != null) { > > - if (str.equals(trueString)) { > > - return true; > > - } else if (str.equals(falseString)) { > > - return false; > > - } > > - } > > - // no match > > - throw new IllegalArgumentException("The String did not match > > either specified value"); > > - } > > - > > - // Boolean to String methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a Boolean to a String returning {@code 'true'}, > > - * {@code 'false'}, or {@code null}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringTrueFalse(Boolean.TRUE) = "true" > > - * BooleanUtils.toStringTrueFalse(Boolean.FALSE) = "false" > > - * BooleanUtils.toStringTrueFalse(null) = null; > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'true'}, {@code 'false'}, or {@code null} > > - */ > > - public static String toStringTrueFalse(final Boolean bool) { > > - return toString(bool, "true", "false", null); > > - } > > - > > - /** > > - * <p>Converts a Boolean to a String returning {@code 'on'}, > > - * {@code 'off'}, or {@code null}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringOnOff(Boolean.TRUE) = "on" > > - * BooleanUtils.toStringOnOff(Boolean.FALSE) = "off" > > - * BooleanUtils.toStringOnOff(null) = null; > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'on'}, {@code 'off'}, or {@code null} > > - */ > > - public static String toStringOnOff(final Boolean bool) { > > - return toString(bool, "on", "off", null); > > - } > > - > > - /** > > - * <p>Converts a Boolean to a String returning {@code 'yes'}, > > - * {@code 'no'}, or {@code null}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringYesNo(Boolean.TRUE) = "yes" > > - * BooleanUtils.toStringYesNo(Boolean.FALSE) = "no" > > - * BooleanUtils.toStringYesNo(null) = null; > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'yes'}, {@code 'no'}, or {@code null} > > - */ > > - public static String toStringYesNo(final Boolean bool) { > > - return toString(bool, "yes", "no", null); > > - } > > - > > - /** > > - * <p>Converts a Boolean to a String returning one of the input > > Strings.</p> > > - * > > - * <pre> > > - * BooleanUtils.toString(Boolean.TRUE, "true", "false", null) = > > "true" > > - * BooleanUtils.toString(Boolean.FALSE, "true", "false", null) = > > "false" > > - * BooleanUtils.toString(null, "true", "false", null) = > > null; > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @param trueString the String to return if {@code true}, may be > > {@code null} > > - * @param falseString the String to return if {@code false}, may be > > {@code null} > > - * @param nullString the String to return if {@code null}, may be > > {@code null} > > - * @return one of the three input Strings > > - */ > > - public static String toString(final Boolean bool, final String > > trueString, final String falseString, final String nullString) { > > - if (bool == null) { > > - return nullString; > > - } > > - return bool.booleanValue() ? trueString : falseString; > > - } > > - > > - // boolean to String methods > > - > > //----------------------------------------------------------------------- > > - /** > > - * <p>Converts a boolean to a String returning {@code 'true'} > > - * or {@code 'false'}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringTrueFalse(true) = "true" > > - * BooleanUtils.toStringTrueFalse(false) = "false" > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'true'}, {@code 'false'}, or {@code null} > > - */ > > - public static String toStringTrueFalse(final boolean bool) { > > - return toString(bool, "true", "false"); > > - } > > - > > - /** > > - * <p>Converts a boolean to a String returning {@code 'on'} > > - * or {@code 'off'}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringOnOff(true) = "on" > > - * BooleanUtils.toStringOnOff(false) = "off" > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'on'}, {@code 'off'}, or {@code null} > > - */ > > - public static String toStringOnOff(final boolean bool) { > > - return toString(bool, "on", "off"); > > - } > > - > > - /** > > - * <p>Converts a boolean to a String returning {@code 'yes'} > > - * or {@code 'no'}.</p> > > - * > > - * <pre> > > - * BooleanUtils.toStringYesNo(true) = "yes" > > - * BooleanUtils.toStringYesNo(false) = "no" > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @return {@code 'yes'}, {@code 'no'}, or {@code null} > > - */ > > - public static String toStringYesNo(final boolean bool) { > > - return toString(bool, "yes", "no"); > > - } > > - > > - /** > > - * <p>Converts a boolean to a String returning one of the input > > Strings.</p> > > - * > > - * <pre> > > - * BooleanUtils.toString(true, "true", "false") = "true" > > - * BooleanUtils.toString(false, "true", "false") = "false" > > - * </pre> > > - * > > - * @param bool the Boolean to check > > - * @param trueString the String to return if {@code true}, may be > > {@code null} > > - * @param falseString the String to return if {@code false}, may be > > {@code null} > > - * @return one of the two input Strings > > - */ > > - public static String toString(final boolean bool, final String > > trueString, final String falseString) { > > - return bool ? trueString : falseString; > > - } > > - > > - // logical operations > > - // > > ---------------------------------------------------------------------- > > - /** > > - * <p>Performs an and on a set of booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.and(true, true) = true > > - * BooleanUtils.and(false, false) = false > > - * BooleanUtils.and(true, false) = false > > - * BooleanUtils.and(true, true, false) = false > > - * BooleanUtils.and(true, true, true) = true > > - * </pre> > > - * > > - * @param array an array of {@code boolean}s > > - * @return {@code true} if the and is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - * @since 3.0.1 > > - */ > > - public static boolean and(final boolean... array) { > > - // Validates input > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - for (final boolean element : array) { > > - if (!element) { > > - return false; > > - } > > - } > > - return true; > > - } > > - > > - /** > > - * <p>Performs an and on an array of Booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.and(Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.and(Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > - * BooleanUtils.and(Boolean.TRUE, Boolean.FALSE) = > > Boolean.FALSE > > - * BooleanUtils.and(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.and(Boolean.FALSE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.FALSE > > - * BooleanUtils.and(Boolean.TRUE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.FALSE > > - * </pre> > > - * > > - * @param array an array of {@code Boolean}s > > - * @return {@code true} if the and is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > - * @since 3.0.1 > > - */ > > - public static Boolean and(final Boolean... array) { > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - try { > > - final boolean[] primitive = ArrayUtils.toPrimitive(array); > > - return and(primitive) ? Boolean.TRUE : Boolean.FALSE; > > - } catch (final NullPointerException ex) { > > - throw new IllegalArgumentException("The array must not > > contain any null elements"); > > - } > > - } > > - > > - /** > > - * <p>Performs an or on a set of booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.or(true, true) = true > > - * BooleanUtils.or(false, false) = false > > - * BooleanUtils.or(true, false) = true > > - * BooleanUtils.or(true, true, false) = true > > - * BooleanUtils.or(true, true, true) = true > > - * BooleanUtils.or(false, false, false) = false > > - * </pre> > > - * > > - * @param array an array of {@code boolean}s > > - * @return {@code true} if the or is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - * @since 3.0.1 > > - */ > > - public static boolean or(final boolean... array) { > > - // Validates input > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - for (final boolean element : array) { > > - if (element) { > > - return true; > > - } > > - } > > - return false; > > - } > > - > > - /** > > - * <p>Performs an or on an array of Booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.or(Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > - * BooleanUtils.or(Boolean.TRUE, Boolean.FALSE) = > > Boolean.TRUE > > - * BooleanUtils.or(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.or(Boolean.TRUE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.TRUE > > - * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > - * </pre> > > - * > > - * @param array an array of {@code Boolean}s > > - * @return {@code true} if the or is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > - * @since 3.0.1 > > - */ > > - public static Boolean or(final Boolean... array) { > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - try { > > - final boolean[] primitive = ArrayUtils.toPrimitive(array); > > - return or(primitive) ? Boolean.TRUE : Boolean.FALSE; > > - } catch (final NullPointerException ex) { > > - throw new IllegalArgumentException("The array must not > > contain any null elements"); > > - } > > - } > > - > > - /** > > - * <p>Performs an xor on a set of booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.xor(true, true) = false > > - * BooleanUtils.xor(false, false) = false > > - * BooleanUtils.xor(true, false) = true > > - * BooleanUtils.xor(true, true) = false > > - * BooleanUtils.xor(false, false) = false > > - * BooleanUtils.xor(true, false) = true > > - * </pre> > > - * > > - * @param array an array of {@code boolean}s > > - * @return {@code true} if the xor is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - */ > > - public static boolean xor(final boolean... array) { > > - // Validates input > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - > > - // false if the neutral element of the xor operator > > - boolean result = false; > > - for (final boolean element : array) { > > - result ^= element; > > - } > > - > > - return result; > > - } > > - > > - /** > > - * <p>Performs an xor on an array of Booleans.</p> > > - * > > - * <pre> > > - * BooleanUtils.xor(new Boolean[] { Boolean.TRUE, Boolean.TRUE }) > > = Boolean.FALSE > > - * BooleanUtils.xor(new Boolean[] { Boolean.FALSE, Boolean.FALSE > }) > > = Boolean.FALSE > > - * BooleanUtils.xor(new Boolean[] { Boolean.TRUE, Boolean.FALSE }) > > = Boolean.TRUE > > - * </pre> > > - * > > - * @param array an array of {@code Boolean}s > > - * @return {@code true} if the xor is successful. > > - * @throws IllegalArgumentException if {@code array} is {@code null} > > - * @throws IllegalArgumentException if {@code array} is empty. > > - * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > - */ > > - public static Boolean xor(final Boolean... array) { > > - if (array == null) { > > - throw new IllegalArgumentException("The Array must not be > > null"); > > - } > > - if (array.length == 0) { > > - throw new IllegalArgumentException("Array is empty"); > > - } > > - try { > > - final boolean[] primitive = ArrayUtils.toPrimitive(array); > > - return xor(primitive) ? Boolean.TRUE : Boolean.FALSE; > > - } catch (final NullPointerException ex) { > > - throw new IllegalArgumentException("The array must not > > contain any null elements"); > > - } > > - } > > - > > - /** > > - * <p>Compares two {@code boolean} values. This is the same > > functionality as provided in Java 7.</p> > > - * > > - * @param x the first {@code boolean} to compare > > - * @param y the second {@code boolean} to compare > > - * @return the value {@code 0} if {@code x == y}; > > - * a value less than {@code 0} if {@code !x && y}; and > > - * a value greater than {@code 0} if {@code x && !y} > > - * @since 3.4 > > - */ > > - public static int compare(boolean x, boolean y) { > > - if (x == y) { > > - return 0; > > - } > > - if (x) { > > - return 1; > > - } else { > > - return -1; > > - } > > - } > > - > > -} > > +/* > > + * Licensed to the Apache Software Foundation (ASF) under one or more > > + * contributor license agreements. See the NOTICE file distributed with > > + * this work for additional information regarding copyright ownership. > > + * The ASF licenses this file to You under the Apache License, Version > 2.0 > > + * (the "License"); you may not use this file except in compliance with > > + * the License. You may obtain a copy of the License at > > + * > > + * http://www.apache.org/licenses/LICENSE-2.0 > > + * > > + * Unless required by applicable law or agreed to in writing, software > > + * distributed under the License is distributed on an "AS IS" BASIS, > > + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or > > implied. > > + * See the License for the specific language governing permissions and > > + * limitations under the License. > > + */ > > +package org.apache.commons.lang3; > > + > > +import org.apache.commons.lang3.math.NumberUtils; > > + > > +/** > > + * <p>Operations on boolean primitives and Boolean objects.</p> > > + * > > + * <p>This class tries to handle {@code null} input gracefully. > > + * An exception will not be thrown for a {@code null} input. > > + * Each method documents its behaviour in more detail.</p> > > + * > > + * <p>#ThreadSafe#</p> > > + * @since 2.0 > > + */ > > +public class BooleanUtils { > > + > > + /** > > + * <p>{@code BooleanUtils} instances should NOT be constructed in > > standard programming. > > + * Instead, the class should be used as {@code > > BooleanUtils.negate(true);}.</p> > > + * > > + * <p>This constructor is public to permit tools that require a > > JavaBean instance > > + * to operate.</p> > > + */ > > + public BooleanUtils() { > > + super(); > > + } > > + > > + // Boolean utilities > > + > > > //-------------------------------------------------------------------------- > > + /** > > + * <p>Negates the specified boolean.</p> > > + * > > + * <p>If {@code null} is passed in, {@code null} will be > returned.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * BooleanUtils.negate(Boolean.TRUE) = Boolean.FALSE; > > + * BooleanUtils.negate(Boolean.FALSE) = Boolean.TRUE; > > + * BooleanUtils.negate(null) = null; > > + * </pre> > > + * > > + * @param bool the Boolean to negate, may be null > > + * @return the negated Boolean, or {@code null} if {@code null} > input > > + */ > > + public static Boolean negate(final Boolean bool) { > > + if (bool == null) { > > + return null; > > + } > > + return bool.booleanValue() ? Boolean.FALSE : Boolean.TRUE; > > + } > > + > > + // boolean Boolean methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Checks if a {@code Boolean} value is {@code true}, > > + * handling {@code null} by returning {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.isTrue(Boolean.TRUE) = true > > + * BooleanUtils.isTrue(Boolean.FALSE) = false > > + * BooleanUtils.isTrue(null) = false > > + * </pre> > > + * > > + * @param bool the boolean to check, null returns {@code false} > > + * @return {@code true} only if the input is non-null and true > > + * @since 2.1 > > + */ > > + public static boolean isTrue(final Boolean bool) { > > + return Boolean.TRUE.equals(bool); > > + } > > + > > + /** > > + * <p>Checks if a {@code Boolean} value is <i>not</i> {@code true}, > > + * handling {@code null} by returning {@code true}.</p> > > + * > > + * <pre> > > + * BooleanUtils.isNotTrue(Boolean.TRUE) = false > > + * BooleanUtils.isNotTrue(Boolean.FALSE) = true > > + * BooleanUtils.isNotTrue(null) = true > > + * </pre> > > + * > > + * @param bool the boolean to check, null returns {@code true} > > + * @return {@code true} if the input is null or false > > + * @since 2.3 > > + */ > > + public static boolean isNotTrue(final Boolean bool) { > > + return !isTrue(bool); > > + } > > + > > + /** > > + * <p>Checks if a {@code Boolean} value is {@code false}, > > + * handling {@code null} by returning {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.isFalse(Boolean.TRUE) = false > > + * BooleanUtils.isFalse(Boolean.FALSE) = true > > + * BooleanUtils.isFalse(null) = false > > + * </pre> > > + * > > + * @param bool the boolean to check, null returns {@code false} > > + * @return {@code true} only if the input is non-null and false > > + * @since 2.1 > > + */ > > + public static boolean isFalse(final Boolean bool) { > > + return Boolean.FALSE.equals(bool); > > + } > > + > > + /** > > + * <p>Checks if a {@code Boolean} value is <i>not</i> {@code false}, > > + * handling {@code null} by returning {@code true}.</p> > > + * > > + * <pre> > > + * BooleanUtils.isNotFalse(Boolean.TRUE) = true > > + * BooleanUtils.isNotFalse(Boolean.FALSE) = false > > + * BooleanUtils.isNotFalse(null) = true > > + * </pre> > > + * > > + * @param bool the boolean to check, null returns {@code true} > > + * @return {@code true} if the input is null or true > > + * @since 2.3 > > + */ > > + public static boolean isNotFalse(final Boolean bool) { > > + return !isFalse(bool); > > + } > > + > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a Boolean to a boolean handling {@code null} > > + * by returning {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(Boolean.TRUE) = true > > + * BooleanUtils.toBoolean(Boolean.FALSE) = false > > + * BooleanUtils.toBoolean(null) = false > > + * </pre> > > + * > > + * @param bool the boolean to convert > > + * @return {@code true} or {@code false}, {@code null} returns > {@code > > false} > > + */ > > + public static boolean toBoolean(final Boolean bool) { > > + return bool != null && bool.booleanValue(); > > + } > > + > > + /** > > + * <p>Converts a Boolean to a boolean handling {@code null}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBooleanDefaultIfNull(Boolean.TRUE, false) = true > > + * BooleanUtils.toBooleanDefaultIfNull(Boolean.FALSE, true) = > false > > + * BooleanUtils.toBooleanDefaultIfNull(null, true) = true > > + * </pre> > > + * > > + * @param bool the boolean to convert > > + * @param valueIfNull the boolean value to return if {@code null} > > + * @return {@code true} or {@code false} > > + */ > > + public static boolean toBooleanDefaultIfNull(final Boolean bool, > > final boolean valueIfNull) { > > + if (bool == null) { > > + return valueIfNull; > > + } > > + return bool.booleanValue(); > > + } > > + > > + // Integer to Boolean methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts an int to a boolean using the convention that {@code > > zero} > > + * is {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(0) = false > > + * BooleanUtils.toBoolean(1) = true > > + * BooleanUtils.toBoolean(2) = true > > + * </pre> > > + * > > + * @param value the int to convert > > + * @return {@code true} if non-zero, {@code false} > > + * if zero > > + */ > > + public static boolean toBoolean(final int value) { > > + return value != 0; > > + } > > + > > + /** > > + * <p>Converts an int to a Boolean using the convention that {@code > > zero} > > + * is {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(0) = Boolean.FALSE > > + * BooleanUtils.toBoolean(1) = Boolean.TRUE > > + * BooleanUtils.toBoolean(2) = Boolean.TRUE > > + * </pre> > > + * > > + * @param value the int to convert > > + * @return Boolean.TRUE if non-zero, Boolean.FALSE if zero, > > + * {@code null} if {@code null} > > + */ > > + public static Boolean toBooleanObject(final int value) { > > + return value == 0 ? Boolean.FALSE : Boolean.TRUE; > > + } > > + > > + /** > > + * <p>Converts an Integer to a Boolean using the convention that > > {@code zero} > > + * is {@code false}.</p> > > + * > > + * <p>{@code null} will be converted to {@code null}.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(Integer.valueOf(0)) = Boolean.FALSE > > + * BooleanUtils.toBoolean(Integer.valueOf(1)) = Boolean.TRUE > > + * BooleanUtils.toBoolean(Integer.valueOf(null)) = null > > + * </pre> > > + * > > + * @param value the Integer to convert > > + * @return Boolean.TRUE if non-zero, Boolean.FALSE if zero, > > + * {@code null} if {@code null} input > > + */ > > + public static Boolean toBooleanObject(final Integer value) { > > + if (value == null) { > > + return null; > > + } > > + return value.intValue() == 0 ? Boolean.FALSE : Boolean.TRUE; > > + } > > + > > + /** > > + * <p>Converts an int to a boolean specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(0, 1, 0) = false > > + * BooleanUtils.toBoolean(1, 1, 0) = true > > + * BooleanUtils.toBoolean(2, 1, 2) = false > > + * BooleanUtils.toBoolean(2, 2, 0) = true > > + * </pre> > > + * > > + * @param value the Integer to convert > > + * @param trueValue the value to match for {@code true} > > + * @param falseValue the value to match for {@code false} > > + * @return {@code true} or {@code false} > > + * @throws IllegalArgumentException if no match > > + */ > > + public static boolean toBoolean(final int value, final int > trueValue, > > final int falseValue) { > > + if (value == trueValue) { > > + return true; > > + } > > + if (value == falseValue) { > > + return false; > > + } > > + // no match > > + throw new IllegalArgumentException("The Integer did not match > > either specified value"); > > + } > > + > > + /** > > + * <p>Converts an Integer to a boolean specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(Integer.valueOf(0), Integer.valueOf(1), > > Integer.valueOf(0)) = false > > + * BooleanUtils.toBoolean(Integer.valueOf(1), Integer.valueOf(1), > > Integer.valueOf(0)) = true > > + * BooleanUtils.toBoolean(Integer.valueOf(2), Integer.valueOf(1), > > Integer.valueOf(2)) = false > > + * BooleanUtils.toBoolean(Integer.valueOf(2), Integer.valueOf(2), > > Integer.valueOf(0)) = true > > + * BooleanUtils.toBoolean(null, null, Integer.valueOf(0)) > > = true > > + * </pre> > > + * > > + * @param value the Integer to convert > > + * @param trueValue the value to match for {@code true}, may be > > {@code null} > > + * @param falseValue the value to match for {@code false}, may be > > {@code null} > > + * @return {@code true} or {@code false} > > + * @throws IllegalArgumentException if no match > > + */ > > + public static boolean toBoolean(final Integer value, final Integer > > trueValue, final Integer falseValue) { > > + if (value == null) { > > + if (trueValue == null) { > > + return true; > > + } > > + if (falseValue == null) { > > + return false; > > + } > > + } else if (value.equals(trueValue)) { > > + return true; > > + } else if (value.equals(falseValue)) { > > + return false; > > + } > > + // no match > > + throw new IllegalArgumentException("The Integer did not match > > either specified value"); > > + } > > + > > + /** > > + * <p>Converts an int to a Boolean specifying the conversion > > values.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * BooleanUtils.toBooleanObject(0, 0, 2, 3) = Boolean.TRUE > > + * BooleanUtils.toBooleanObject(2, 1, 2, 3) = Boolean.FALSE > > + * BooleanUtils.toBooleanObject(3, 1, 2, 3) = null > > + * </pre> > > + * > > + * @param value the Integer to convert > > + * @param trueValue the value to match for {@code true} > > + * @param falseValue the value to match for {@code false} > > + * @param nullValue the value to to match for {@code null} > > + * @return Boolean.TRUE, Boolean.FALSE, or {@code null} > > + * @throws IllegalArgumentException if no match > > + */ > > + public static Boolean toBooleanObject(final int value, final int > > trueValue, final int falseValue, final int nullValue) { > > + if (value == trueValue) { > > + return Boolean.TRUE; > > + } > > + if (value == falseValue) { > > + return Boolean.FALSE; > > + } > > + if (value == nullValue) { > > + return null; > > + } > > + // no match > > + throw new IllegalArgumentException("The Integer did not match > any > > specified value"); > > + } > > + > > + /** > > + * <p>Converts an Integer to a Boolean specifying the conversion > > values.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * BooleanUtils.toBooleanObject(Integer.valueOf(0), > > Integer.valueOf(0), Integer.valueOf(2), Integer.valueOf(3)) = > Boolean.TRUE > > + * BooleanUtils.toBooleanObject(Integer.valueOf(2), > > Integer.valueOf(1), Integer.valueOf(2), Integer.valueOf(3)) = > Boolean.FALSE > > + * BooleanUtils.toBooleanObject(Integer.valueOf(3), > > Integer.valueOf(1), Integer.valueOf(2), Integer.valueOf(3)) = null > > + * </pre> > > + * > > + * @param value the Integer to convert > > + * @param trueValue the value to match for {@code true}, may be > > {@code null} > > + * @param falseValue the value to match for {@code false}, may be > > {@code null} > > + * @param nullValue the value to to match for {@code null}, may be > > {@code null} > > + * @return Boolean.TRUE, Boolean.FALSE, or {@code null} > > + * @throws IllegalArgumentException if no match > > + */ > > + public static Boolean toBooleanObject(final Integer value, final > > Integer trueValue, final Integer falseValue, final Integer nullValue) { > > + if (value == null) { > > + if (trueValue == null) { > > + return Boolean.TRUE; > > + } > > + if (falseValue == null) { > > + return Boolean.FALSE; > > + } > > + if (nullValue == null) { > > + return null; > > + } > > + } else if (value.equals(trueValue)) { > > + return Boolean.TRUE; > > + } else if (value.equals(falseValue)) { > > + return Boolean.FALSE; > > + } else if (value.equals(nullValue)) { > > + return null; > > + } > > + // no match > > + throw new IllegalArgumentException("The Integer did not match > any > > specified value"); > > + } > > + > > + // Boolean to Integer methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a boolean to an int using the convention that > > + * {@code zero} is {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toInteger(true) = 1 > > + * BooleanUtils.toInteger(false) = 0 > > + * </pre> > > + * > > + * @param bool the boolean to convert > > + * @return one if {@code true}, zero if {@code false} > > + */ > > + public static int toInteger(final boolean bool) { > > + return bool ? 1 : 0; > > + } > > + > > + /** > > + * <p>Converts a boolean to an Integer using the convention that > > + * {@code zero} is {@code false}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toIntegerObject(true) = Integer.valueOf(1) > > + * BooleanUtils.toIntegerObject(false) = Integer.valueOf(0) > > + * </pre> > > + * > > + * @param bool the boolean to convert > > + * @return one if {@code true}, zero if {@code false} > > + */ > > + public static Integer toIntegerObject(final boolean bool) { > > + return bool ? NumberUtils.INTEGER_ONE : > NumberUtils.INTEGER_ZERO; > > + } > > + > > + /** > > + * <p>Converts a Boolean to a Integer using the convention that > > + * {@code zero} is {@code false}.</p> > > + * > > + * <p>{@code null} will be converted to {@code null}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toIntegerObject(Boolean.TRUE) = > Integer.valueOf(1) > > + * BooleanUtils.toIntegerObject(Boolean.FALSE) = > Integer.valueOf(0) > > + * </pre> > > + * > > + * @param bool the Boolean to convert > > + * @return one if Boolean.TRUE, zero if Boolean.FALSE, {@code null} > > if {@code null} > > + */ > > + public static Integer toIntegerObject(final Boolean bool) { > > + if (bool == null) { > > + return null; > > + } > > + return bool.booleanValue() ? NumberUtils.INTEGER_ONE : > > NumberUtils.INTEGER_ZERO; > > + } > > + > > + /** > > + * <p>Converts a boolean to an int specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toInteger(true, 1, 0) = 1 > > + * BooleanUtils.toInteger(false, 1, 0) = 0 > > + * </pre> > > + * > > + * @param bool the to convert > > + * @param trueValue the value to return if {@code true} > > + * @param falseValue the value to return if {@code false} > > + * @return the appropriate value > > + */ > > + public static int toInteger(final boolean bool, final int trueValue, > > final int falseValue) { > > + return bool ? trueValue : falseValue; > > + } > > + > > + /** > > + * <p>Converts a Boolean to an int specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toInteger(Boolean.TRUE, 1, 0, 2) = 1 > > + * BooleanUtils.toInteger(Boolean.FALSE, 1, 0, 2) = 0 > > + * BooleanUtils.toInteger(null, 1, 0, 2) = 2 > > + * </pre> > > + * > > + * @param bool the Boolean to convert > > + * @param trueValue the value to return if {@code true} > > + * @param falseValue the value to return if {@code false} > > + * @param nullValue the value to return if {@code null} > > + * @return the appropriate value > > + */ > > + public static int toInteger(final Boolean bool, final int trueValue, > > final int falseValue, final int nullValue) { > > + if (bool == null) { > > + return nullValue; > > + } > > + return bool.booleanValue() ? trueValue : falseValue; > > + } > > + > > + /** > > + * <p>Converts a boolean to an Integer specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toIntegerObject(true, Integer.valueOf(1), > > Integer.valueOf(0)) = Integer.valueOf(1) > > + * BooleanUtils.toIntegerObject(false, Integer.valueOf(1), > > Integer.valueOf(0)) = Integer.valueOf(0) > > + * </pre> > > + * > > + * @param bool the to convert > > + * @param trueValue the value to return if {@code true}, may be > > {@code null} > > + * @param falseValue the value to return if {@code false}, may be > > {@code null} > > + * @return the appropriate value > > + */ > > + public static Integer toIntegerObject(final boolean bool, final > > Integer trueValue, final Integer falseValue) { > > + return bool ? trueValue : falseValue; > > + } > > + > > + /** > > + * <p>Converts a Boolean to an Integer specifying the conversion > > values.</p> > > + * > > + * <pre> > > + * BooleanUtils.toIntegerObject(Boolean.TRUE, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(1) > > + * BooleanUtils.toIntegerObject(Boolean.FALSE, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(0) > > + * BooleanUtils.toIntegerObject(null, Integer.valueOf(1), > > Integer.valueOf(0), Integer.valueOf(2)) = Integer.valueOf(2) > > + * </pre> > > + * > > + * @param bool the Boolean to convert > > + * @param trueValue the value to return if {@code true}, may be > > {@code null} > > + * @param falseValue the value to return if {@code false}, may be > > {@code null} > > + * @param nullValue the value to return if {@code null}, may be > > {@code null} > > + * @return the appropriate value > > + */ > > + public static Integer toIntegerObject(final Boolean bool, final > > Integer trueValue, final Integer falseValue, final Integer nullValue) { > > + if (bool == null) { > > + return nullValue; > > + } > > + return bool.booleanValue() ? trueValue : falseValue; > > + } > > + > > + // String to Boolean methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a String to a Boolean.</p> > > + * > > + * <p>{@code 'true'}, {@code 'on'}, {@code 'y'}, {@code 't'} or > > {@code 'yes'} > > + * (case insensitive) will return {@code true}. > > + * {@code 'false'}, {@code 'off'}, {@code 'n'}, {@code 'f'} or > {@code > > 'no'} > > + * (case insensitive) will return {@code false}. > > + * Otherwise, {@code null} is returned.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * // N.B. case is not significant > > + * BooleanUtils.toBooleanObject(null) = null > > + * BooleanUtils.toBooleanObject("true") = Boolean.TRUE > > + * BooleanUtils.toBooleanObject("T") = Boolean.TRUE // i.e. > > T[RUE] > > + * BooleanUtils.toBooleanObject("false") = Boolean.FALSE > > + * BooleanUtils.toBooleanObject("f") = Boolean.FALSE // i.e. > > f[alse] > > + * BooleanUtils.toBooleanObject("No") = Boolean.FALSE > > + * BooleanUtils.toBooleanObject("n") = Boolean.FALSE // i.e. > > n[o] > > + * BooleanUtils.toBooleanObject("on") = Boolean.TRUE > > + * BooleanUtils.toBooleanObject("ON") = Boolean.TRUE > > + * BooleanUtils.toBooleanObject("off") = Boolean.FALSE > > + * BooleanUtils.toBooleanObject("oFf") = Boolean.FALSE > > + * BooleanUtils.toBooleanObject("yes") = Boolean.TRUE > > + * BooleanUtils.toBooleanObject("Y") = Boolean.TRUE // i.e. > > Y[ES] > > + * BooleanUtils.toBooleanObject("blue") = null > > + * BooleanUtils.toBooleanObject("true ") = null // trailing space > > (too long) > > + * BooleanUtils.toBooleanObject("ono") = null // does not match > > on or no > > + * </pre> > > + * > > + * @param str the String to check; upper and lower case are treated > > as the same > > + * @return the Boolean value of the string, {@code null} if no match > > or {@code null} input > > + */ > > + public static Boolean toBooleanObject(final String str) { > > + // Previously used equalsIgnoreCase, which was fast for interned > > 'true'. > > + // Non interned 'true' matched 15 times slower. > > + // > > + // Optimisation provides same performance as before for interned > > 'true'. > > + // Similar performance for null, 'false', and other strings not > > length 2/3/4. > > + // 'true'/'TRUE' match 4 times slower, 'tRUE'/'True' 7 times > > slower. > > + if (str == "true") { > > + return Boolean.TRUE; > > + } > > + if (str == null) { > > + return null; > > + } > > + switch (str.length()) { > > + case 1: { > > + final char ch0 = str.charAt(0); > > + if (ch0 == 'y' || ch0 == 'Y' || > > + ch0 == 't' || ch0 == 'T') { > > + return Boolean.TRUE; > > + } > > + if (ch0 == 'n' || ch0 == 'N' || > > + ch0 == 'f' || ch0 == 'F') { > > + return Boolean.FALSE; > > + } > > + break; > > + } > > + case 2: { > > + final char ch0 = str.charAt(0); > > + final char ch1 = str.charAt(1); > > + if ((ch0 == 'o' || ch0 == 'O') && > > + (ch1 == 'n' || ch1 == 'N') ) { > > + return Boolean.TRUE; > > + } > > + if ((ch0 == 'n' || ch0 == 'N') && > > + (ch1 == 'o' || ch1 == 'O') ) { > > + return Boolean.FALSE; > > + } > > + break; > > + } > > + case 3: { > > + final char ch0 = str.charAt(0); > > + final char ch1 = str.charAt(1); > > + final char ch2 = str.charAt(2); > > + if ((ch0 == 'y' || ch0 == 'Y') && > > + (ch1 == 'e' || ch1 == 'E') && > > + (ch2 == 's' || ch2 == 'S') ) { > > + return Boolean.TRUE; > > + } > > + if ((ch0 == 'o' || ch0 == 'O') && > > + (ch1 == 'f' || ch1 == 'F') && > > + (ch2 == 'f' || ch2 == 'F') ) { > > + return Boolean.FALSE; > > + } > > + break; > > + } > > + case 4: { > > + final char ch0 = str.charAt(0); > > + final char ch1 = str.charAt(1); > > + final char ch2 = str.charAt(2); > > + final char ch3 = str.charAt(3); > > + if ((ch0 == 't' || ch0 == 'T') && > > + (ch1 == 'r' || ch1 == 'R') && > > + (ch2 == 'u' || ch2 == 'U') && > > + (ch3 == 'e' || ch3 == 'E') ) { > > + return Boolean.TRUE; > > + } > > + break; > > + } > > + case 5: { > > + final char ch0 = str.charAt(0); > > + final char ch1 = str.charAt(1); > > + final char ch2 = str.charAt(2); > > + final char ch3 = str.charAt(3); > > + final char ch4 = str.charAt(4); > > + if ((ch0 == 'f' || ch0 == 'F') && > > + (ch1 == 'a' || ch1 == 'A') && > > + (ch2 == 'l' || ch2 == 'L') && > > + (ch3 == 's' || ch3 == 'S') && > > + (ch4 == 'e' || ch4 == 'E') ) { > > + return Boolean.FALSE; > > + } > > + break; > > + } > > + default: > > + break; > > + } > > + > > + return null; > > + } > > + > > + /** > > + * <p>Converts a String to a Boolean throwing an exception if no > > match.</p> > > + * > > + * <p>NOTE: This returns null and will throw a NullPointerException > > if autoboxed to a boolean. </p> > > + * > > + * <pre> > > + * BooleanUtils.toBooleanObject("true", "true", "false", "null") > = > > Boolean.TRUE > > + * BooleanUtils.toBooleanObject("false", "true", "false", "null") > = > > Boolean.FALSE > > + * BooleanUtils.toBooleanObject("null", "true", "false", "null") > = > > null > > + * </pre> > > + * > > + * @param str the String to check > > + * @param trueString the String to match for {@code true} (case > > sensitive), may be {@code null} > > + * @param falseString the String to match for {@code false} (case > > sensitive), may be {@code null} > > + * @param nullString the String to match for {@code null} (case > > sensitive), may be {@code null} > > + * @return the Boolean value of the string, {@code null} if either > > the String matches {@code nullString} > > + * or if {@code null} input and {@code nullString} is {@code null} > > + * @throws IllegalArgumentException if the String doesn't match > > + */ > > + public static Boolean toBooleanObject(final String str, final String > > trueString, final String falseString, final String nullString) { > > + if (str == null) { > > + if (trueString == null) { > > + return Boolean.TRUE; > > + } > > + if (falseString == null) { > > + return Boolean.FALSE; > > + } > > + if (nullString == null) { > > + return null; > > + } > > + } else if (str.equals(trueString)) { > > + return Boolean.TRUE; > > + } else if (str.equals(falseString)) { > > + return Boolean.FALSE; > > + } else if (str.equals(nullString)) { > > + return null; > > + } > > + // no match > > + throw new IllegalArgumentException("The String did not match any > > specified value"); > > + } > > + > > + // String to boolean methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a String to a boolean (optimised for > performance).</p> > > + * > > + * <p>{@code 'true'}, {@code 'on'}, {@code 'y'}, {@code 't'} or > > {@code 'yes'} > > + * (case insensitive) will return {@code true}. Otherwise, > > + * {@code false} is returned.</p> > > + * > > + * <p>This method performs 4 times faster (JDK1.4) than > > + * {@code Boolean.valueOf(String)}. However, this method accepts > > + * 'on' and 'yes', 't', 'y' as true values. > > + * > > + * <pre> > > + * BooleanUtils.toBoolean(null) = false > > + * BooleanUtils.toBoolean("true") = true > > + * BooleanUtils.toBoolean("TRUE") = true > > + * BooleanUtils.toBoolean("tRUe") = true > > + * BooleanUtils.toBoolean("on") = true > > + * BooleanUtils.toBoolean("yes") = true > > + * BooleanUtils.toBoolean("false") = false > > + * BooleanUtils.toBoolean("x gti") = false > > + * BooleanUtils.toBooleanObject("y") = true > > + * BooleanUtils.toBooleanObject("n") = false > > + * BooleanUtils.toBooleanObject("t") = true > > + * BooleanUtils.toBooleanObject("f") = false > > + * </pre> > > + * > > + * @param str the String to check > > + * @return the boolean value of the string, {@code false} if no > match > > or the String is null > > + */ > > + public static boolean toBoolean(final String str) { > > + return toBooleanObject(str) == Boolean.TRUE; > > + } > > + > > + /** > > + * <p>Converts a String to a Boolean throwing an exception if no > > match found.</p> > > + * > > + * <pre> > > + * BooleanUtils.toBoolean("true", "true", "false") = true > > + * BooleanUtils.toBoolean("false", "true", "false") = false > > + * </pre> > > + * > > + * @param str the String to check > > + * @param trueString the String to match for {@code true} (case > > sensitive), may be {@code null} > > + * @param falseString the String to match for {@code false} (case > > sensitive), may be {@code null} > > + * @return the boolean value of the string > > + * @throws IllegalArgumentException if the String doesn't match > > + */ > > + public static boolean toBoolean(final String str, final String > > trueString, final String falseString) { > > + if (str == trueString) { > > + return true; > > + } else if (str == falseString) { > > + return false; > > + } else if (str != null) { > > + if (str.equals(trueString)) { > > + return true; > > + } else if (str.equals(falseString)) { > > + return false; > > + } > > + } > > + // no match > > + throw new IllegalArgumentException("The String did not match > > either specified value"); > > + } > > + > > + // Boolean to String methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a Boolean to a String returning {@code 'true'}, > > + * {@code 'false'}, or {@code null}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringTrueFalse(Boolean.TRUE) = "true" > > + * BooleanUtils.toStringTrueFalse(Boolean.FALSE) = "false" > > + * BooleanUtils.toStringTrueFalse(null) = null; > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'true'}, {@code 'false'}, or {@code null} > > + */ > > + public static String toStringTrueFalse(final Boolean bool) { > > + return toString(bool, "true", "false", null); > > + } > > + > > + /** > > + * <p>Converts a Boolean to a String returning {@code 'on'}, > > + * {@code 'off'}, or {@code null}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringOnOff(Boolean.TRUE) = "on" > > + * BooleanUtils.toStringOnOff(Boolean.FALSE) = "off" > > + * BooleanUtils.toStringOnOff(null) = null; > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'on'}, {@code 'off'}, or {@code null} > > + */ > > + public static String toStringOnOff(final Boolean bool) { > > + return toString(bool, "on", "off", null); > > + } > > + > > + /** > > + * <p>Converts a Boolean to a String returning {@code 'yes'}, > > + * {@code 'no'}, or {@code null}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringYesNo(Boolean.TRUE) = "yes" > > + * BooleanUtils.toStringYesNo(Boolean.FALSE) = "no" > > + * BooleanUtils.toStringYesNo(null) = null; > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'yes'}, {@code 'no'}, or {@code null} > > + */ > > + public static String toStringYesNo(final Boolean bool) { > > + return toString(bool, "yes", "no", null); > > + } > > + > > + /** > > + * <p>Converts a Boolean to a String returning one of the input > > Strings.</p> > > + * > > + * <pre> > > + * BooleanUtils.toString(Boolean.TRUE, "true", "false", null) = > > "true" > > + * BooleanUtils.toString(Boolean.FALSE, "true", "false", null) = > > "false" > > + * BooleanUtils.toString(null, "true", "false", null) = > > null; > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @param trueString the String to return if {@code true}, may be > > {@code null} > > + * @param falseString the String to return if {@code false}, may be > > {@code null} > > + * @param nullString the String to return if {@code null}, may be > > {@code null} > > + * @return one of the three input Strings > > + */ > > + public static String toString(final Boolean bool, final String > > trueString, final String falseString, final String nullString) { > > + if (bool == null) { > > + return nullString; > > + } > > + return bool.booleanValue() ? trueString : falseString; > > + } > > + > > + // boolean to String methods > > + > > //----------------------------------------------------------------------- > > + /** > > + * <p>Converts a boolean to a String returning {@code 'true'} > > + * or {@code 'false'}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringTrueFalse(true) = "true" > > + * BooleanUtils.toStringTrueFalse(false) = "false" > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'true'}, {@code 'false'}, or {@code null} > > + */ > > + public static String toStringTrueFalse(final boolean bool) { > > + return toString(bool, "true", "false"); > > + } > > + > > + /** > > + * <p>Converts a boolean to a String returning {@code 'on'} > > + * or {@code 'off'}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringOnOff(true) = "on" > > + * BooleanUtils.toStringOnOff(false) = "off" > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'on'}, {@code 'off'}, or {@code null} > > + */ > > + public static String toStringOnOff(final boolean bool) { > > + return toString(bool, "on", "off"); > > + } > > + > > + /** > > + * <p>Converts a boolean to a String returning {@code 'yes'} > > + * or {@code 'no'}.</p> > > + * > > + * <pre> > > + * BooleanUtils.toStringYesNo(true) = "yes" > > + * BooleanUtils.toStringYesNo(false) = "no" > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @return {@code 'yes'}, {@code 'no'}, or {@code null} > > + */ > > + public static String toStringYesNo(final boolean bool) { > > + return toString(bool, "yes", "no"); > > + } > > + > > + /** > > + * <p>Converts a boolean to a String returning one of the input > > Strings.</p> > > + * > > + * <pre> > > + * BooleanUtils.toString(true, "true", "false") = "true" > > + * BooleanUtils.toString(false, "true", "false") = "false" > > + * </pre> > > + * > > + * @param bool the Boolean to check > > + * @param trueString the String to return if {@code true}, may be > > {@code null} > > + * @param falseString the String to return if {@code false}, may be > > {@code null} > > + * @return one of the two input Strings > > + */ > > + public static String toString(final boolean bool, final String > > trueString, final String falseString) { > > + return bool ? trueString : falseString; > > + } > > + > > + // logical operations > > + // > > ---------------------------------------------------------------------- > > + /** > > + * <p>Performs an and on a set of booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.and(true, true) = true > > + * BooleanUtils.and(false, false) = false > > + * BooleanUtils.and(true, false) = false > > + * BooleanUtils.and(true, true, false) = false > > + * BooleanUtils.and(true, true, true) = true > > + * </pre> > > + * > > + * @param array an array of {@code boolean}s > > + * @return {@code true} if the and is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + * @since 3.0.1 > > + */ > > + public static boolean and(final boolean... array) { > > + // Validates input > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + for (final boolean element : array) { > > + if (!element) { > > + return false; > > + } > > + } > > + return true; > > + } > > + > > + /** > > + * <p>Performs an and on an array of Booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.and(Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.and(Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > + * BooleanUtils.and(Boolean.TRUE, Boolean.FALSE) = > > Boolean.FALSE > > + * BooleanUtils.and(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.and(Boolean.FALSE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.FALSE > > + * BooleanUtils.and(Boolean.TRUE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.FALSE > > + * </pre> > > + * > > + * @param array an array of {@code Boolean}s > > + * @return {@code true} if the and is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > + * @since 3.0.1 > > + */ > > + public static Boolean and(final Boolean... array) { > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + try { > > + final boolean[] primitive = ArrayUtils.toPrimitive(array); > > + return and(primitive) ? Boolean.TRUE : Boolean.FALSE; > > + } catch (final NullPointerException ex) { > > + throw new IllegalArgumentException("The array must not > > contain any null elements"); > > + } > > + } > > + > > + /** > > + * <p>Performs an or on a set of booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.or(true, true) = true > > + * BooleanUtils.or(false, false) = false > > + * BooleanUtils.or(true, false) = true > > + * BooleanUtils.or(true, true, false) = true > > + * BooleanUtils.or(true, true, true) = true > > + * BooleanUtils.or(false, false, false) = false > > + * </pre> > > + * > > + * @param array an array of {@code boolean}s > > + * @return {@code true} if the or is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + * @since 3.0.1 > > + */ > > + public static boolean or(final boolean... array) { > > + // Validates input > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + for (final boolean element : array) { > > + if (element) { > > + return true; > > + } > > + } > > + return false; > > + } > > + > > + /** > > + * <p>Performs an or on an array of Booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.or(Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > + * BooleanUtils.or(Boolean.TRUE, Boolean.FALSE) = > > Boolean.TRUE > > + * BooleanUtils.or(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.or(Boolean.TRUE, Boolean.FALSE, Boolean.TRUE) = > > Boolean.TRUE > > + * BooleanUtils.or(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE) = > > Boolean.FALSE > > + * </pre> > > + * > > + * @param array an array of {@code Boolean}s > > + * @return {@code true} if the or is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > + * @since 3.0.1 > > + */ > > + public static Boolean or(final Boolean... array) { > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + try { > > + final boolean[] primitive = ArrayUtils.toPrimitive(array); > > + return or(primitive) ? Boolean.TRUE : Boolean.FALSE; > > + } catch (final NullPointerException ex) { > > + throw new IllegalArgumentException("The array must not > > contain any null elements"); > > + } > > + } > > + > > + /** > > + * <p>Performs an xor on a set of booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.xor(true, true) = false > > + * BooleanUtils.xor(false, false) = false > > + * BooleanUtils.xor(true, false) = true > > + * BooleanUtils.xor(true, true) = false > > + * BooleanUtils.xor(false, false) = false > > + * BooleanUtils.xor(true, false) = true > > + * </pre> > > + * > > + * @param array an array of {@code boolean}s > > + * @return {@code true} if the xor is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + */ > > + public static boolean xor(final boolean... array) { > > + // Validates input > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + > > + // false if the neutral element of the xor operator > > + boolean result = false; > > + for (final boolean element : array) { > > + result ^= element; > > + } > > + > > + return result; > > + } > > + > > + /** > > + * <p>Performs an xor on an array of Booleans.</p> > > + * > > + * <pre> > > + * BooleanUtils.xor(new Boolean[] { Boolean.TRUE, Boolean.TRUE }) > > = Boolean.FALSE > > + * BooleanUtils.xor(new Boolean[] { Boolean.FALSE, Boolean.FALSE > }) > > = Boolean.FALSE > > + * BooleanUtils.xor(new Boolean[] { Boolean.TRUE, Boolean.FALSE }) > > = Boolean.TRUE > > + * </pre> > > + * > > + * @param array an array of {@code Boolean}s > > + * @return {@code true} if the xor is successful. > > + * @throws IllegalArgumentException if {@code array} is {@code null} > > + * @throws IllegalArgumentException if {@code array} is empty. > > + * @throws IllegalArgumentException if {@code array} contains a > > {@code null} > > + */ > > + public static Boolean xor(final Boolean... array) { > > + if (array == null) { > > + throw new IllegalArgumentException("The Array must not be > > null"); > > + } > > + if (array.length == 0) { > > + throw new IllegalArgumentException("Array is empty"); > > + } > > + try { > > + final boolean[] primitive = ArrayUtils.toPrimitive(array); > > + return xor(primitive) ? Boolean.TRUE : Boolean.FALSE; > > + } catch (final NullPointerException ex) { > > + throw new IllegalArgumentException("The array must not > > contain any null elements"); > > + } > > + } > > + > > + /** > > + * <p>Compares two {@code boolean} values. This is the same > > functionality as provided in Java 7.</p> > > + * > > + * @param x the first {@code boolean} to compare > > + * @param y the second {@code boolean} to compare > > + * @return the value {@code 0} if {@code x == y}; > > + * a value less than {@code 0} if {@code !x && y}; and > > + * a value greater than {@code 0} if {@code x && !y} > > + * @since 3.4 > > + */ > > + public static int compare(boolean x, boolean y) { > > + if (x == y) { > > + return 0; > > + } > > + return x ? 1 : -1; > > + } > > + > > +} > > > > >
