On 29 August 2013 21:18, <brit...@apache.org> wrote:
> Author: britter
> Date: Thu Aug 29 20:18:13 2013
> New Revision: 1518802
>
> URL: http://svn.apache.org/r1518802
> Log:
> Make methods that create parsers or printers fail early and provide an
> expressive error messages. Document new behavior in JavaDoc
>
> Added:
>
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/Assertions.java
> (with props)
>
> commons/proper/csv/trunk/src/test/java/org/apache/commons/csv/AssertionsTest.java
> (with props)
> Modified:
>
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVParser.java
>
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVPrinter.java
>
> commons/proper/csv/trunk/src/test/java/org/apache/commons/csv/CSVParserTest.java
>
> commons/proper/csv/trunk/src/test/java/org/apache/commons/csv/CSVPrinterTest.java
>
> Added:
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/Assertions.java
> URL:
> http://svn.apache.org/viewvc/commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/Assertions.java?rev=1518802&view=auto
> ==============================================================================
> ---
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/Assertions.java
> (added)
> +++
> commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/Assertions.java
> Thu Aug 29 20:18:13 2013
> @@ -0,0 +1,19 @@
> +package org.apache.commons.csv;
> +
> +/**
> + * Utility class for input parameter validation
> + *
> + * @version $Id$
> + */
> +final class Assertions {
> +
> + private Assertions() {
> + // can not be instantiated
> + }
> +
> + public static <T> void notNull(T parameter, String parameterName) {
Not sure this needs to be generic. Surely could just use the following
method sig?
public static void notNull(Object parameter, String parameterName) {
> + if (parameter == null) {
> + throw new IllegalArgumentException("Parameter '" + parameterName
> + "' must not be null!");
> + }
> + }
> +}
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