Mojo3563.java

package plugin;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.project.MavenProject;
import org.apache.maven.model.Model;
import org.codehaus.plexus.util.IOUtil;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

/**
 * @goal validate
 * @phase validate
 */
public class Mojo3563
    extends AbstractMojo
{

    /**
     * @parameter default-value="${project}"
     */
    private MavenProject project;

    /**
     * @parameter
     * @required
     */
    private File foo;

    public void execute() throws MojoExecutionException, MojoFailureException {
        Model model = project.getModel();
        String property = model.getProperties().getProperty("test");
        if (property == null) {
            throw new MojoExecutionException("Could not find property.");
        }

        File testFile = new File(property.substring(property.indexOf(":") + 1));
        if (!testFile.exists()) {
            throw new MojoExecutionException("Test file does not exist: File = " + testFile.getAbsolutePath() + "Property = " + property);
        }
        getLog().info("Property = " + property);
        
        File f = new File( project.getBuild().getOutputDirectory(), "foo.txt" );
        getLog().info( "Creating test file using project.getBuild().getDirectory(): " + f );
        
        String testValue = "" + System.currentTimeMillis();
        
        FileWriter w = null;
        try
        {
            f.getParentFile().mkdirs();
            w = new FileWriter( f );
            
            w.write( testValue );
        }
        catch ( IOException e )
        {
            throw new MojoExecutionException( "Failed to write test file.", e );
        }
        finally
        {
            IOUtil.close( w );
        }
        
        getLog().info( "Attempting to read test file using path from plugin parameter: " + foo );
        BufferedReader r = null;
        try
        {
            r = new BufferedReader( new FileReader( foo ) );
            if ( !testValue.equals( r.readLine() ) )
            {
                throw new MojoExecutionException( "Test file: " + foo + " has wrong contents." );
            }
        }
        catch ( IOException e )
        {
            throw new MojoExecutionException( "Failed to read test file.", e );
        }
        finally
        {
            IOUtil.close( r );
        }
    }
}