archetype-common/src/main/java/org/apache/maven/archetype/source/LocalCatalogArchetypeDataSource.java

package org.apache.maven.archetype.source;

/*
 * 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.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Iterator;

import org.apache.maven.archetype.catalog.Archetype;
import org.apache.maven.archetype.catalog.ArchetypeCatalog;
import org.apache.maven.project.ProjectBuildingRequest;
import org.apache.maven.shared.repository.RepositoryManager;

import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.util.ReaderFactory;

@Component( role = ArchetypeDataSource.class, hint = "catalog" )
public class LocalCatalogArchetypeDataSource
    extends CatalogArchetypeDataSource
{
    @Requirement
    private RepositoryManager repositoryManager;

    @Override
    public void updateCatalog( ProjectBuildingRequest buildingRequest, Archetype archetype )
        throws ArchetypeDataSourceException
    {
        File localRepo = repositoryManager.getLocalRepositoryBasedir( buildingRequest );

        File catalogFile = new File( localRepo, ARCHETYPE_CATALOG_FILENAME );

        getLogger().debug( "Using catalog " + catalogFile.getAbsolutePath() );

        ArchetypeCatalog catalog;
        if ( catalogFile.exists() )
        {
            try
            {
                getLogger().debug( "Reading the catalog " + catalogFile );
                catalog = readCatalog( ReaderFactory.newXmlReader( catalogFile ) );
            }
            catch ( FileNotFoundException ex )
            {
                getLogger().debug( "Catalog file don't exist" );
                catalog = new ArchetypeCatalog();
            }
            catch ( IOException e )
            {
                throw new ArchetypeDataSourceException( "Error reading archetype catalog.", e );
            }
        }
        else
        {
            getLogger().debug( "Catalog file don't exist" );
            catalog = new ArchetypeCatalog();
        }

        Iterator<Archetype> archetypes = catalog.getArchetypes().iterator();
        boolean found = false;
        Archetype newArchetype = archetype;
        while ( !found && archetypes.hasNext() )
        {
            Archetype a = archetypes.next();
            if ( a.getGroupId().equals( archetype.getGroupId() )
                && a.getArtifactId().equals( archetype.getArtifactId() ) )
            {
                newArchetype = a;
                found = true;
            }
        }
        if ( !found )
        {
            catalog.addArchetype( newArchetype );
        }

        newArchetype.setVersion( archetype.getVersion() );
        newArchetype.setRepository( archetype.getRepository() );
        newArchetype.setDescription( archetype.getDescription() );
        newArchetype.setProperties( archetype.getProperties() );
        newArchetype.setGoals( archetype.getGoals() );

        writeLocalCatalog( catalog, catalogFile );
    }

    @Override
    public ArchetypeCatalog getArchetypeCatalog( ProjectBuildingRequest buildingRequest )
        throws ArchetypeDataSourceException
    {
        File localRepo = repositoryManager.getLocalRepositoryBasedir( buildingRequest );

        File catalogFile = new File( localRepo, ARCHETYPE_CATALOG_FILENAME );

        if ( catalogFile.exists() && catalogFile.isDirectory() )
        {
            catalogFile = new File( catalogFile, ARCHETYPE_CATALOG_FILENAME );
        }
        getLogger().debug( "Using catalog " + catalogFile );

        if ( catalogFile.exists() )
        {
            try
            {
                return readCatalog( ReaderFactory.newXmlReader( catalogFile ) );
            }
            catch ( FileNotFoundException e )
            {
                throw new ArchetypeDataSourceException( "The specific archetype catalog does not exist.", e );
            }
            catch ( IOException e )
            {
                throw new ArchetypeDataSourceException( "Error reading archetype catalog.", e );
            }
        }
        else
        {
            return new ArchetypeCatalog();
        }
    }
}