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package org.codehaus.mojo.buildhelper;
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* Copyright (c) 2004, The Codehaus
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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import org.apache.maven.plugin.AbstractMojo;
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import org.apache.maven.plugin.MojoExecutionException;
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import org.apache.maven.plugin.MojoFailureException;
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import org.apache.maven.project.MavenProject;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.regex.PatternSyntaxException;
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* Sets a property by applying a regex replacement rule to a supplied value.
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* @author Stephen Connolly
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* @goal regex-property
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* @description Sets a property after applying a regex
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public class RegexPropertyMojo
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* @parameter expression="${project}"
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private MavenProject project;
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* The property to set.
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* The pre-transformation value.
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* The regex to replace.
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private String replacement;
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* Whether to fail if no match is found.
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* @parameter default-value="true"
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private boolean failIfNoMatch;
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public void execute()
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throws MojoExecutionException, MojoFailureException
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pattern = Pattern.compile( regex );
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catch ( PatternSyntaxException e )
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throw new MojoExecutionException( e.getMessage(), e );
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Matcher matcher = pattern.matcher( value );
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if ( !matcher.find() )
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throw new MojoFailureException( "No match to regex '" + regex + "' found in '" + value + "'." );
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getLog().info( "No match to regex '" + regex + "' found in '" + value + "'." );
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value = matcher.replaceAll( replacement );
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getLog().info( "Setting property '" + name + "' to '" + value + "'." );
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project.getProperties().setProperty( name, value );