com.atlassian.maven.plugin.clover.internal.AntPropertyHelper Maven / Gradle / Ivy

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package com.atlassian.maven.plugin.clover.internal;

/*
 * Copyright 2004-2005 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.logging.Log;
import org.apache.maven.project.MavenProject;
import org.apache.tools.ant.PropertyHelper;
import org.codehaus.plexus.util.introspection.ReflectionValueExtractor;

/**
 * Makes the ${expressions} used in Maven available to Ant as properties.
 *
 * @author Kenney Westerhof
 */
public class AntPropertyHelper
    extends PropertyHelper
{
    private Log log;
    private MavenProject mavenProject;

    /**
     * @param project maven project instance
     * @param l  logger instance
     */
    public AntPropertyHelper( MavenProject project, Log l )
    {
        mavenProject = project;
        log = l;
    }

    public synchronized Object getPropertyHook( String ns, String name, boolean user )
    {
        if ( log.isDebugEnabled() )
        {
            log.debug( "getProperty(ns="+ns+", name="+name+", user="+user+")" );
        }

        return getPropertyHook( ns, name, user, mavenProject );
    }

    private Object getPropertyHook( String ns, String name, boolean user, MavenProject mavenProject )
    {
        Object val = null;
        try
        {
            if ( name.startsWith( "project." ) )
            {
                val = ReflectionValueExtractor.evaluate(
                    name,
                    mavenProject,
                    true
                );
            }
            else if ( name.equals("basedir") )
            {
                val = ReflectionValueExtractor.evaluate(
                    "basedir.path",
                    mavenProject,
                    false
                );
            }
        }
        catch ( Exception e )
        {
            if ( log.isWarnEnabled() )
            {
                log.warn( "Error evaluating expression '" + name + "'", e );
            }
            e.printStackTrace();
        }

        if ( val == null )
        {
            val = super.getPropertyHook( ns, name, user );
            if ( val == null )
            {
                val = System.getProperty( name.toString() );
            }
        }

        return val;
    }

}