package org.apache.maven.plugin;

 /*

  * 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.maven.artifact.Artifact;

 import org.apache.maven.plugin.descriptor.PluginDescriptor;

 import org.codehaus.plexus.component.discovery.ComponentDiscoveryEvent;

 import org.codehaus.plexus.component.discovery.ComponentDiscoveryListener;

 import org.codehaus.plexus.component.repository.ComponentSetDescriptor;

 import java.util.ArrayList;

 import java.util.List;

 public class MavenPluginValidator

     implements ComponentDiscoveryListener

 {

     private final Artifact pluginArtifact;

     private List/*<String>*/ errors = new ArrayList/*<String>*/();

     public MavenPluginValidator( Artifact pluginArtifact )

     {

         this.pluginArtifact = pluginArtifact;

     }

     public void componentDiscovered( ComponentDiscoveryEvent event )

     {

         ComponentSetDescriptor componentSetDescriptor = event.getComponentSetDescriptor();

         if ( componentSetDescriptor instanceof PluginDescriptor )

         {

             PluginDescriptor pluginDescriptor = (PluginDescriptor) componentSetDescriptor;

             if ( !pluginArtifact.getGroupId().equals( pluginDescriptor.getGroupId() ) )

             {

                 errors.add( "Plugin's descriptor contains the wrong group ID: " + pluginDescriptor.getGroupId() );

             }

             if ( !pluginArtifact.getArtifactId().equals( pluginDescriptor.getArtifactId() ) )

             {

                 errors.add( "Plugin's descriptor contains the wrong artifact ID: " + pluginDescriptor.getArtifactId() );

             }

             if ( !pluginArtifact.getBaseVersion().equals( pluginDescriptor.getVersion() ) )

             {

                 errors.add( "Plugin's descriptor contains the wrong version: " + pluginDescriptor.getVersion() );

             }

         }

     }

     public boolean hasErrors()

     {

         return !errors.isEmpty();

     }

     public List/*<String>*/ getErrors()

     {

         return errors;

     }

 }