core-integration-tests-support/core-integration-testing-plugins/maven-it-plugin-no-project/src/main/java/org/apache/maven/plugin/coreit/NoProjectMojo.java

package org.apache.maven.plugin.coreit;

/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed 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.
 */

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Map;

/**
 * Mojo which touches a file without requiring a project.
 * 
 * @goal light-touch
 * @requiresProject false
 * 
 */
public class NoProjectMojo
    extends AbstractMojo
{
    /**
     * @parameter expression="${project.build.directory}"
     * @required
     */
    private String outputDirectory;

    /**
     * @parameter expression="target/test-basedir-alignment"
     */
    private File basedirAlignmentDirectory;

    public void execute()
        throws MojoExecutionException
    {
        touch( new File( outputDirectory ), "touch.txt" );
    }

    private void touch( File dir, String file )
        throws MojoExecutionException
    {
        try
        {
             if ( !dir.exists() )
             {
                 dir.mkdirs();
             }
             
             File touch = new File( dir, file );
             
             getLog().info( "Touching: " + touch );
     
             FileWriter w = new FileWriter( touch );
             
             w.write( file );
             
             w.close();
        }
        catch ( IOException e )
        {
            throw new MojoExecutionException( "Error touching file", e );
        }
    }
}