conor 2003/06/27 04:19:22
Modified: . build.xml
src/main/org/apache/tools/ant Main.java
Added: src/main/org/apache/tools/ant/launch AntMain.java
Launcher.java Locator.java
Log:
New Launch facility. Separate jar now can be used to launch Ant which
takes over some of the functionality traditionally found in the Ant launch
scripts.
Revision Changes Path
1.383 +76 -19 ant/build.xml
Index: build.xml
===================================================================
RCS file: /home/cvs/ant/build.xml,v
retrieving revision 1.382
retrieving revision 1.383
diff -u -w -u -r1.382 -r1.383
--- build.xml 9 Jun 2003 13:38:05 -0000 1.382
+++ build.xml 27 Jun 2003 11:19:22 -0000 1.383
@@ -18,12 +18,31 @@
<property environment="env"/>
+ <!--
+ ===================================================================
+ Set the properties that control names and versions
+ ===================================================================
+ -->
<property name="Name" value="Apache Ant"/>
<property name="name" value="ant"/>
<property name="version" value="1.6alpha"/>
- <property name="manifest-version" value="1.5.9"/>
+ <property name="manifest-version" value="1.6"/>
<property name="bootstrap.jar" value="ant-bootstrap.jar"/>
+ <property name="ant.package" value="org/apache/tools/ant"/>
+ <property name="optional.package"
value="${ant.package}/taskdefs/optional"/>
+ <property name="optional.type.package"
value="${ant.package}/types/optional"/>
+ <property name="apache.resolver.type.package"
value="${ant.package}/types/resolver"/>
+ <property name="util.package" value="${ant.package}/util"/>
+ <property name="regexp.package" value="${util.package}/regexp"/>
+
+ <property name="optional.jars.prefix" value="ant"/>
+
+ <!--
+ ===================================================================
+ Set the properties that control various build options
+ ===================================================================
+ -->
<property name="debug" value="true"/>
<property name="chmod.fail" value="true"/>
<property name="chmod.maxparallel" value="250"/>
@@ -33,6 +52,8 @@
<property name="junit.fork" value="false"/>
<property name="junit.filtertrace" value="off"/>
<property name="junit.summary" value="no"/>
+ <property name="test.haltonfailure" value="yes" />
+ <property name="unfiltered.files"
value="**/*.gif,**/*.jpg,**/*.ico,**/*.pdf"/>
<!--
===================================================================
@@ -47,20 +68,8 @@
<property name="etc.dir" value="src/etc"/>
<property name="tests.dir" value="src/testcases"/>
<property name="tests.etc.dir" value="src/etc/testcases"/>
- <property name="test.haltonfailure" value="yes" />
-
- <property name="ant.package" value="org/apache/tools/ant"/>
- <property name="optional.package"
value="${ant.package}/taskdefs/optional"/>
- <property name="optional.type.package"
value="${ant.package}/types/optional"/>
- <property name="apache.resolver.type.package"
value="${ant.package}/types/resolver"/>
- <property name="util.package" value="${ant.package}/util"/>
- <property name="regexp.package" value="${util.package}/regexp"/>
-
<property name="manifest" value="src/etc/manifest"/>
- <property name="unfiltered.files"
value="**/*.gif,**/*.jpg,**/*.ico,**/*.pdf"/>
-
-
<!--
===================================================================
Set the properties for the build area
@@ -74,8 +83,12 @@
<property name="build.tests" value="${build.dir}/testcases"/>
<property name="build.tests.javadocs" value="${build.dir}/javadocs.test/"/>
<property name="manifest.tmp" value="${build.dir}/optional.manifest"/>
- <property name="optional.jars.prefix" value="ant"/>
+ <!--
+ ===================================================================
+ Set the paths used in the build
+ ===================================================================
+ -->
<path id="classpath">
</path>
@@ -90,6 +103,7 @@
<pathelement location="${tests.etc.dir}"/>
<path refid="classpath"/>
</path>
+
<!-- turn this path into a string which is passed to the tests -->
<property name="tests-classpath.value"
refid="tests-classpath"/>
@@ -113,8 +127,6 @@
<property name="src.dist.docs" value="${src.dist.dir}/docs"/>
<property name="src.dist.lib" value="${src.dist.dir}/lib"/>
-
-
<!--
===================================================================
Set up selectors to be used by javac, junit and jar to exclude
@@ -128,6 +140,7 @@
<filename name="${optional.package}/extension/**"/>
</or>
</selector>
+
<selector id="needs.jdk1.4+">
<or>
<filename name="${regexp.package}/Jdk14Regexp*"/>
@@ -142,9 +155,11 @@
<filename name="${optional.package}/Javah*"/>
</or>
</selector>
+
<selector id="needs.sun.uue">
<filename name="${ant.package}/taskdefs/email/UUMailer*"/>
</selector>
+
<selector id="needs.sun.b64">
<or>
<filename name="${optional.package}/splash/SplashTask*"/>
@@ -161,27 +176,34 @@
<filename name="${ant.package}/types/XMLCatalogBuildFileTest*"/>
</or>
</selector>
+
<selector id="needs.xalan1">
<or>
<filename name="${optional.package}/XalanLiaison*"/>
<filename name="${optional.package}/junit/Xalan1Executor*"/>
</or>
</selector>
+
<selector id="needs.xalan2">
<filename name="${optional.package}/junit/Xalan2Executor*"/>
</selector>
+
<selector id="needs.xslp">
<filename name="${optional.package}/XslpLiaison*"/>
</selector>
+
<selector id="needs.apache.resolver">
<filename name="${apache.resolver.type.package}/**"/>
</selector>
+
<selector id="needs.junit">
<filename name="${optional.package}/junit/**"/>
</selector>
+
<selector id="needs.jakarta.regexp">
<filename name="${regexp.package}/JakartaRegexp*"/>
</selector>
+
<selector id="needs.jakarta.oro">
<or>
<filename name="${regexp.package}/JakartaOro*"/>
@@ -189,6 +211,7 @@
<filename name="${optional.package}/metamata/MAudit*"/>
</or>
</selector>
+
<selector id="needs.jakarta.bcel">
<or>
<filename name="${ant.package}/filters/util/JavaClassHelper*"/>
@@ -196,12 +219,15 @@
<filename name="${optional.type.package}/depend/ClassFileSetTest*"/>
</or>
</selector>
+
<selector id="needs.jakarta.log4j">
<filename name="${ant.package}/listener/Log4jListener*"/>
</selector>
+
<selector id="needs.commons.logging">
<filename name="${ant.package}/listener/CommonsLoggingListener*"/>
</selector>
+
<selector id="needs.bsf">
<or>
<filename name="${optional.package}/Script*"/>
@@ -209,32 +235,40 @@
<filename name="${optional.type.package}/Script*"/>
</or>
</selector>
+
<selector id="needs.stylebook">
<filename name="${optional.package}/StyleBook*"/>
</selector>
+
<selector id="needs.javamail">
<or>
<filename name="${ant.package}/taskdefs/email/MimeMailer*"/>
</or>
</selector>
+
<selector id="needs.icontract">
<filename name="${optional.package}/IContract*"/>
</selector>
+
<selector id="needs.netrexx">
<filename name="${optional.package}/NetRexxC*"/>
</selector>
+
<selector id="needs.weblogic.ejbc">
<filename name="${optional.package}/ejb/Ejbc*"/>
</selector>
+
<selector id="needs.weblogic.ddcreator">
<filename name="${optional.package}/ejb/DDCreator*"/>
</selector>
+
<selector id="needs.weblogic.server">
<or>
<filename name="${optional.package}/ejb/WLRun*"/>
<filename name="${optional.package}/ejb/WLStop*"/>
</or>
</selector>
+
<selector id="needs.commons.net">
<or>
<filename name="${optional.package}/net/FTP*"/>
@@ -242,40 +276,54 @@
<filename name="${optional.package}/net/TelnetTask*"/>
</or>
</selector>
+
<selector id="needs.starteam">
<or>
<filename name="${optional.package}/scm/AntStarTeam*"/>
<filename name="${optional.package}/starteam/*"/>
</or>
</selector>
+
<selector id="needs.vaj">
<filename name="${optional.package}/ide/VAJ*"/>
</selector>
+
<selector id="needs.antlr">
<filename name="${optional.package}/ANTLR*"/>
</selector>
+
<selector id="needs.jmf">
<filename name="${optional.package}/sound/*"/>
</selector>
+
<selector id="needs.jai">
<or>
<filename name="${optional.package}/image/*"/>
<filename name="${ant.package}/types/optional/image/*"/>
</or>
</selector>
+
<selector id="needs.jdepend">
<filename name="${optional.package}/jdepend/*"/>
</selector>
+
<selector id="needs.swing">
<filename name="${optional.package}/splash/*"/>
</selector>
+
<selector id="needs.jsch">
<filename name="${optional.package}/ssh/*"/>
</selector>
+
+ <selector id="ant.launcher">
+ <filename name="${ant.package}/launch/**/*"/>
+ </selector>
+
<patternset id="onlinetests">
<exclude name="**/GetTest.java" if="offline"/>
<exclude name="**/SignJarTest.java" if="offline"/>
</patternset>
+
<patternset id="teststhatfail">
<exclude name="${optional.package}/BeanShellScriptTest.java"/>
<exclude name="${ant.package}/taskdefs/ImportTest.java"/>
@@ -617,12 +665,11 @@
<include name="junit-noframes.xsl"/>
</fileset>
</copy>
-
</target>
<!--
===================================================================
- Create the Apache Ant jars: ant.jar and optional.jar
+ Create the all of the Apache Ant jars
===================================================================
-->
<target name="jars"
@@ -659,6 +706,15 @@
</section>
</manifest>
+ <jar destfile="${build.lib}/${name}-launcher.jar"
+ basedir="${build.classes}">
+ <selector refid="ant.launcher"/>
+ <manifest>
+ <attribute name="Main-Class"
value="org.apache.tools.ant.launch.Launcher"/>
+ <attribute name="Class-Path" value="xercesImpl.jar xml-apis.jar"/>
+ </manifest>
+ </jar>
+
<jar destfile="${build.lib}/${name}.jar"
basedir="${build.classes}"
manifest="${manifest}">
@@ -675,6 +731,7 @@
<selector refid="needs.jakarta.oro"/>
<selector refid="needs.jdk1.4+"/>
<selector refid="needs.javamail"/>
+ <selector refid="ant.launcher"/>
</or>
</selector>
</not>
1.84 +50 -11 ant/src/main/org/apache/tools/ant/Main.java
Index: Main.java
===================================================================
RCS file: /home/cvs/ant/src/main/org/apache/tools/ant/Main.java,v
retrieving revision 1.83
retrieving revision 1.84
diff -u -w -u -r1.83 -r1.84
--- Main.java 10 Jun 2003 13:29:55 -0000 1.83
+++ Main.java 27 Jun 2003 11:19:22 -0000 1.84
@@ -66,6 +66,8 @@
import org.apache.tools.ant.input.DefaultInputHandler;
import org.apache.tools.ant.input.InputHandler;
import org.apache.tools.ant.util.JavaEnvUtils;
+import org.apache.tools.ant.launch.AntMain;
+
/**
* Command line entry point into Ant. This class is entered via the
@@ -79,7 +81,7 @@
*
* @author [EMAIL PROTECTED]
*/
-public class Main {
+public class Main implements AntMain {
/** The default build file name. */
public static final String DEFAULT_BUILD_FILENAME = "build.xml";
@@ -175,11 +177,25 @@
*/
public static void start(String[] args, Properties
additionalUserProperties,
ClassLoader coreLoader) {
- Main m = null;
+ Main m = new Main();
+ m.startAnt(args, additionalUserProperties, coreLoader);
+ }
+
+ /**
+ * Start Ant
+ * @param args command line args
+ * @param additionalUserProperties properties to set beyond those that
+ * may be specified on the args list
+ * @param coreLoader - not used
+ *
+ * @since Ant 1.6
+ */
+ public void startAnt(String[] args, Properties additionalUserProperties,
+ ClassLoader coreLoader) {
try {
Diagnostics.validateVersion();
- m = new Main(args);
+ processArgs(args);
} catch (Throwable exc) {
handleLogfile();
printMessage(exc);
@@ -191,17 +207,17 @@
e.hasMoreElements();) {
String key = (String) e.nextElement();
String property = additionalUserProperties.getProperty(key);
- m.definedProps.put(key, property);
+ definedProps.put(key, property);
}
}
// expect the worst
int exitCode = 1;
try {
- m.runBuild(coreLoader);
+ runBuild(coreLoader);
exitCode = 0;
} catch (BuildException be) {
- if (m.err != System.err) {
+ if (err != System.err) {
printMessage(be);
}
} catch (Throwable exc) {
@@ -249,6 +265,13 @@
}
/**
+ * Constructor used when creating Main for later arg processing
+ * and startup
+ */
+ public Main() {
+ }
+
+ /**
* Sole constructor, which parses and deals with command line
* arguments.
*
@@ -258,6 +281,17 @@
* or is a directory.
*/
protected Main(String[] args) throws BuildException {
+ processArgs(args);
+ }
+
+ /**
+ * Process command line arguments
+ *
+ * @param args the command line arguments.
+ *
+ * @since Ant 1.6
+ */
+ private void processArgs(String[] args) {
String searchForThis = null;
PrintStream logTo = null;
@@ -670,6 +704,8 @@
/**
* Creates the InputHandler and adds it to the project.
*
+ * @param project the project instance.
+ *
* @exception BuildException if a specified InputHandler
* implementation could not be loaded.
*/
@@ -713,7 +749,8 @@
BuildLogger logger = null;
if (loggerClassname != null) {
try {
- logger = (BuildLogger)
(Class.forName(loggerClassname).newInstance());
+ Class loggerClass = Class.forName(loggerClassname);
+ logger = (BuildLogger) (loggerClass.newInstance());
} catch (ClassCastException e) {
System.err.println("The specified logger class "
+ loggerClassname
@@ -918,6 +955,8 @@
* Writes a formatted list of target names to <code>System.out</code>
* with an optional description.
*
+ *
+ * @param project the project instance.
* @param names The names to be printed.
* Must not be <code>null</code>.
* @param descriptions The associated target descriptions.
1.1 ant/src/main/org/apache/tools/ant/launch/AntMain.java
Index: AntMain.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.launch;
import java.util.Properties;
/**
* Interface used to bridge to the actual Main class without any
* messy reflection
*
* @author Conor MacNeill
* @since Ant 1.6
*/
public interface AntMain {
/**
* Start Ant.
*
* @param args command line args
* @param additionalUserProperties properties to set beyond those that
* may be specified on the args list
* @param coreLoader - not used
*
* @since Ant 1.6
*/
void startAnt(String[] args, Properties additionalUserProperties,
ClassLoader coreLoader);
}
1.1 ant/src/main/org/apache/tools/ant/launch/Launcher.java
Index: Launcher.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.launch;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.MalformedURLException;
import java.io.File;
/**
* This is a launcher for Ant.
*
* @author Conor MacNeill
* @since Ant 1.6
*/
public class Launcher {
/** The Ant Home property */
public static final String ANTHOME_PROPERTY = "ant.home";
/** The location of a per-user library directory */
public static final String USER_LIBDIR = ".ant/lib";
/** The startup class that is to be run */
public static final String MAIN_CLASS = "org.apache.tools.ant.Main";
/**
* Entry point for starting command line Ant
*
* @param args commandline arguments
*/
public static void main(String[] args) {
try {
Launcher launcher = new Launcher();
launcher.run(args);
} catch (Throwable t) {
t.printStackTrace();
}
}
/**
* Run the launcher to launch Ant
*
* @param args the command line arguments
*
* @exception MalformedURLException if the URLs required for the
classloader
* cannot be created.
*/
private void run(String[] args) throws MalformedURLException {
String antHomeProperty = System.getProperty(ANTHOME_PROPERTY);
File antHome = null;
URL launchJarURL = Locator.getClassLocationURL(getClass());
File jarDir = new File(launchJarURL.getFile()).getParentFile();
if (antHomeProperty != null) {
antHome = new File(antHomeProperty);
}
if (antHome == null || !antHome.exists()) {
URL antHomeURL = new URL(launchJarURL, "..");
antHome = new File(antHomeURL.getFile());
System.setProperty(ANTHOME_PROPERTY, antHome.getAbsolutePath());
}
if (!antHome.exists()) {
throw new IllegalStateException("Ant home is set incorrectly or "
+ "ant could not be located");
}
// Now try and find JAVA_HOME
File toolsJar = Locator.getToolsJar();
URL[] systemJars = Locator.getLocationURLs(jarDir);
File userLibDir
= new File(System.getProperty("user.home"), USER_LIBDIR);
URL[] userJars = Locator.getLocationURLs(userLibDir);
int numJars = userJars.length + systemJars.length;
if (toolsJar != null) {
numJars++;
}
URL[] jars = new URL[numJars];
System.arraycopy(userJars, 0, jars, 0, userJars.length);
System.arraycopy(systemJars, 0, jars, userJars.length,
systemJars.length);
if (toolsJar != null) {
jars[jars.length - 1] = toolsJar.toURL();
}
// now update the class.path property
StringBuffer baseClassPath
= new StringBuffer(System.getProperty("java.class.path"));
for (int i = 0; i < jars.length; ++i) {
baseClassPath.append(File.pathSeparatorChar);
baseClassPath.append(jars[i].getFile());
}
System.setProperty("java.class.path", baseClassPath.toString());
URLClassLoader loader = new URLClassLoader(jars);
try {
Class mainClass = loader.loadClass(MAIN_CLASS);
AntMain main = (AntMain) mainClass.newInstance();
main.startAnt(args, null, null);
} catch (Throwable t) {
t.printStackTrace();
}
}
}
1.1 ant/src/main/org/apache/tools/ant/launch/Locator.java
Index: Locator.java
===================================================================
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.launch;
import java.net.MalformedURLException;
import java.net.URL;
import java.io.File;
import java.io.FilenameFilter;
/**
* The Locator is a utility class which is used to find certain items
* in the environment
*
* @author Conor MacNeill
* @since Ant 1.6
*/
public class Locator {
/**
* Get the URL for the given class's load location.
*
* @param theClass the class whose load URL is desired.
* @return a URL which identifies the component from which this class
* was loaded.
* @throws MalformedURLException if the class' URL cannot be
* constructed.
*/
public static URL getClassLocationURL(Class theClass)
throws MalformedURLException {
String className = theClass.getName().replace('.', '/') + ".class";
URL classRawURL = theClass.getClassLoader().getResource(className);
String fileComponent = classRawURL.getFile();
if (classRawURL.getProtocol().equals("file")) {
// Class comes from a directory of class files rather than
// from a jar.
int classFileIndex = fileComponent.lastIndexOf(className);
if (classFileIndex != -1) {
fileComponent = fileComponent.substring(0, classFileIndex);
}
return new URL("file:" + fileComponent);
} else if (classRawURL.getProtocol().equals("jar")) {
// Class is coming from a jar. The file component of the URL
// is actually the URL of the jar file
int classSeparatorIndex = fileComponent.lastIndexOf("!");
if (classSeparatorIndex != -1) {
fileComponent = fileComponent.substring(0,
classSeparatorIndex);
}
return new URL(fileComponent);
} else {
// its running out of something besides a jar.
// We just return the Raw URL as a best guess
return classRawURL;
}
}
/**
* Get the URL necessary to load the Sun compiler tools. If the classes
* are available to this class, then no additional URL is required and
* null is returned. This may be because the classes are explcitly in the
* class path or provided by the JVM directly
*
* @return the tools jar as a File if required, null otherwise
*/
public static File getToolsJar() {
// firstly check if the tols jar is alreayd n the classpath
boolean toolsJarAvailable = false;
try {
// just check whether this throws an exception
Class.forName("com.sun.tools.javac.Main");
toolsJarAvailable = true;
} catch (Exception e) {
try {
Class.forName("sun.tools.javac.Main");
toolsJarAvailable = true;
} catch (Exception e2) {
// ignore
}
}
if (toolsJarAvailable) {
return null;
}
// couldn't find compiler - try to find tools.jar
// based on java.home setting
String javaHome = System.getProperty("java.home");
if (javaHome.endsWith("jre")) {
javaHome = javaHome.substring(0, javaHome.length() - 4);
}
File toolsJar = new File(javaHome + "/lib/tools.jar");
if (!toolsJar.exists()) {
System.out.println("Unable to locate tools.jar. "
+ "Expected to find it in " + toolsJar.getPath());
return null;
}
return toolsJar;
}
/**
* Get an array or URLs representing all of the jar files in the
* given location. If the location is a file, it is returned as the only
* element of the array. If the location is a directory, it is scanned for
* jar files
*
* @param location the location to scan for Jars
*
* @return an array of URLs for all jars in the given location.
*
* @exception MalformedURLException if the URLs for the jars cannot be
* formed
*/
public static URL[] getLocationURLs(File location)
throws MalformedURLException {
return getLocationURLs(location, new String[]{".jar"});
}
/**
* Get an array or URLs representing all of the files of a given set of
* extensions in the given location. If the location is a file, it is
* returned as the only element of the array. If the location is a
* directory, it is scanned for matching files
*
* @param location the location to scan for files
* @param extensions an array of extension that are to match in the
* directory search
*
* @return an array of URLs of matching files
* @exception MalformedURLException if the URLs for the files cannot be
* formed
*/
public static URL[] getLocationURLs(File location,
final String[] extensions)
throws MalformedURLException {
URL[] urls = new URL[0];
if (!location.exists()) {
return urls;
}
if (!location.isDirectory()) {
urls = new URL[1];
String path = location.getPath();
for (int i = 0; i < extensions.length; ++i) {
if (path.endsWith(extensions[i])) {
urls[0] = location.toURL();
break;
}
}
return urls;
}
File[] matches = location.listFiles(
new FilenameFilter() {
public boolean accept(File dir, String name) {
for (int i = 0; i < extensions.length; ++i) {
if (name.endsWith(extensions[i])) {
return true;
}
}
return false;
}
});
urls = new URL[matches.length];
for (int i = 0; i < matches.length; ++i) {
urls[i] = matches[i].toURL();
}
return urls;
}
}
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