package org.apache.maven.archiva.repository.project.filters;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.commons.collections.CollectionUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.maven.archiva.model.ArchivaModelCloner;
import org.apache.maven.archiva.model.ArchivaProjectModel;
import org.apache.maven.archiva.model.Dependency;
import org.apache.maven.archiva.repository.project.ProjectModelException;
import org.apache.maven.archiva.repository.project.ProjectModelFilter;
import org.codehaus.plexus.evaluator.DefaultExpressionEvaluator;
import org.codehaus.plexus.evaluator.EvaluatorException;
import org.codehaus.plexus.evaluator.ExpressionEvaluator;
import org.codehaus.plexus.evaluator.sources.PropertiesExpressionSource;
import org.codehaus.plexus.evaluator.sources.SystemPropertyExpressionSource;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
/**
* ProjectModelExpressionFilter
*
* @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a>
* @version $Id: ProjectModelExpressionFilter.java 547277 2007-06-14 15:25:42Z joakime $
* @plexus.component role="org.apache.maven.archiva.repository.project.ProjectModelFilter"
* role-hint="expression"
* instantiation-strategy="per-lookup"
*/
public class ProjectModelExpressionFilter
implements ProjectModelFilter
{
private ExpressionEvaluator evaluator = new DefaultExpressionEvaluator();
/**
* Find and Evaluate the Expressions present in the model.
*
* @param model the model to correct.
*/
public ArchivaProjectModel filter( final ArchivaProjectModel model )
throws ProjectModelException
{
Properties props = new Properties();
if ( model.getProperties() != null )
{
props.putAll( model.getProperties() );
}
props.setProperty( "pom.artifactId", model.getArtifactId() );
props.setProperty( "pom.groupId", StringUtils.defaultString( model.getGroupId() ) );
props.setProperty( "pom.version", StringUtils.defaultString( model.getVersion() ) );
PropertiesExpressionSource propsSource = new PropertiesExpressionSource();
propsSource.setProperties( props );
evaluator.addExpressionSource( propsSource );
evaluator.addExpressionSource( new SystemPropertyExpressionSource() );
ArchivaProjectModel ret = ArchivaModelCloner.clone( model );
try
{
ret.setVersion( evaluator.expand( ret.getVersion() ) );
ret.setGroupId( evaluator.expand( ret.getGroupId() ) );
if ( CollectionUtils.isNotEmpty( ret.getDependencies() ) )
{
evaluateExpressionsInDependencyList( evaluator, ret.getDependencies() );
}
evaluateExpressionsInDependencyList( evaluator, ret.getDependencyManagement() );
}
catch ( EvaluatorException e )
{
throw new ProjectModelException( "Unable to evaluate expression in model: " + e.getMessage(), e );
}
return ret;
}
private static void evaluateExpressionsInDependencyList( ExpressionEvaluator evaluator, List dependencies )
throws EvaluatorException
{
if ( dependencies == null )
{
return;
}
Iterator it = dependencies.iterator();
while ( it.hasNext() )
{
Dependency dependency = (Dependency) it.next();
dependency.setGroupId( evaluator.expand( dependency.getGroupId() ) );
dependency.setVersion( evaluator.expand( dependency.getVersion() ) );
}
}
}