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package org.apache.maven.model.normalization;
/*
* 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 java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.maven.model.Build;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.merge.MavenModelMerger;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.util.StringUtils;
/**
* Handles normalization of a model.
*
* @author Benjamin Bentmann
*/
@Component( role = ModelNormalizer.class )
public class DefaultModelNormalizer
implements ModelNormalizer
{
private DuplicateMerger merger = new DuplicateMerger();
@Override
public void mergeDuplicates( Model model, ModelBuildingRequest request, ModelProblemCollector problems )
{
Build build = model.getBuild();
if ( build != null )
{
List<Plugin> plugins = build.getPlugins();
Map<Object, Plugin> normalized = new LinkedHashMap<Object, Plugin>( plugins.size() * 2 );
for ( Plugin plugin : plugins )
{
Object key = plugin.getKey();
Plugin first = normalized.get( key );
if ( first != null )
{
merger.mergePlugin( plugin, first );
}
normalized.put( key, plugin );
}
if ( plugins.size() != normalized.size() )
{
build.setPlugins( new ArrayList<Plugin>( normalized.values() ) );
}
}
/*
* NOTE: This is primarily to keep backward-compat with Maven 2.x which did not validate that dependencies are
* unique within a single POM. Upon multiple declarations, 2.x just kept the last one but retained the order of
* the first occurrence. So when we're in lenient/compat mode, we have to deal with such broken POMs and mimic
* the way 2.x works. When we're in strict mode, the removal of duplicates just saves other merging steps from
* aftereffects and bogus error messages.
*/
List<Dependency> dependencies = model.getDependencies();
Map<String, Dependency> normalized = new LinkedHashMap<String, Dependency>( dependencies.size() * 2 );
for ( Dependency dependency : dependencies )
{
normalized.put( dependency.getManagementKey(), dependency );
}
if ( dependencies.size() != normalized.size() )
{
model.setDependencies( new ArrayList<Dependency>( normalized.values() ) );
}
}
protected static class DuplicateMerger
extends MavenModelMerger
{
public void mergePlugin( Plugin target, Plugin source )
{
super.mergePlugin( target, source, false, Collections.emptyMap() );
}
}
@Override
public void injectDefaultValues( Model model, ModelBuildingRequest request, ModelProblemCollector problems )
{
injectDependencyDefaults( model.getDependencies() );
Build build = model.getBuild();
if ( build != null )
{
for ( Plugin plugin : build.getPlugins() )
{
injectDependencyDefaults( plugin.getDependencies() );
}
}
}
private void injectDependencyDefaults( List<Dependency> dependencies )
{
for ( Dependency dependency : dependencies )
{
if ( StringUtils.isEmpty( dependency.getScope() ) )
{
// we cannot set this directly in the MDO due to the interactions with dependency management
dependency.setScope( "compile" );
}
}
}
}
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