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package org.apache.maven.repository.internal;
/*
* 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.model.building.ModelCache;
import org.eclipse.aether.RepositoryCache;
import org.eclipse.aether.RepositorySystemSession;
/**
* A model builder cache backed by the repository system cache.
*
* @author Benjamin Bentmann
*/
class DefaultModelCache
implements ModelCache
{
private final RepositorySystemSession session;
private final RepositoryCache cache;
public static ModelCache newInstance( RepositorySystemSession session )
{
if ( session.getCache() == null )
{
return null;
}
else
{
return new DefaultModelCache( session );
}
}
private DefaultModelCache( RepositorySystemSession session )
{
this.session = session;
this.cache = session.getCache();
}
public Object get( String groupId, String artifactId, String version, String tag )
{
return cache.get( session, new Key( groupId, artifactId, version, tag ) );
}
public void put( String groupId, String artifactId, String version, String tag, Object data )
{
cache.put( session, new Key( groupId, artifactId, version, tag ), data );
}
static class Key
{
private final String groupId;
private final String artifactId;
private final String version;
private final String tag;
private final int hash;
public Key( String groupId, String artifactId, String version, String tag )
{
this.groupId = groupId;
this.artifactId = artifactId;
this.version = version;
this.tag = tag;
int h = 17;
h = h * 31 + this.groupId.hashCode();
h = h * 31 + this.artifactId.hashCode();
h = h * 31 + this.version.hashCode();
h = h * 31 + this.tag.hashCode();
hash = h;
}
@Override
public boolean equals( Object obj )
{
if ( this == obj )
{
return true;
}
if ( null == obj || !getClass().equals( obj.getClass() ) )
{
return false;
}
Key that = (Key) obj;
return artifactId.equals( that.artifactId ) && groupId.equals( that.groupId )
&& version.equals( that.version ) && tag.equals( that.tag );
}
@Override
public int hashCode()
{
return hash;
}
}
}
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