| 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 java.util.Map; |
| import java.util.Objects; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.maven.building.Source; |
| import org.apache.maven.model.building.ModelCache; |
| import org.eclipse.aether.RepositorySystemSession; |
| |
| /** |
| * A model builder cache backed by the repository system cache. |
| * |
| * @author Benjamin Bentmann |
| */ |
| public class DefaultModelCache |
| implements ModelCache |
| { |
| |
| private static final String KEY = DefaultModelCache.class.getName(); |
| |
| private final Map<Object, Object> cache; |
| |
| public static ModelCache newInstance( RepositorySystemSession session ) |
| { |
| Map<Object, Object> cache; |
| if ( session.getCache() == null ) |
| { |
| cache = new ConcurrentHashMap<>(); |
| } |
| else |
| { |
| cache = ( Map ) session.getCache().get( session, KEY ); |
| if ( cache == null ) |
| { |
| cache = new ConcurrentHashMap<>(); |
| session.getCache().put( session, KEY, cache ); |
| } |
| } |
| return new DefaultModelCache( cache ); |
| } |
| |
| private DefaultModelCache( Map<Object, Object> cache ) |
| { |
| this.cache = cache; |
| } |
| |
| public Object get( Source path, String tag ) |
| { |
| return get( new SourceCacheKey( path, tag ) ); |
| } |
| |
| public void put( Source path, String tag, Object data ) |
| { |
| put( new SourceCacheKey( path, tag ), data ); |
| } |
| |
| public Object get( String groupId, String artifactId, String version, String tag ) |
| { |
| return get( new GavCacheKey( groupId, artifactId, version, tag ) ); |
| } |
| |
| public void put( String groupId, String artifactId, String version, String tag, Object data ) |
| { |
| put( new GavCacheKey( groupId, artifactId, version, tag ), data ); |
| } |
| |
| protected Object get( Object key ) |
| { |
| return cache.get( key ); |
| } |
| |
| protected void put( Object key, Object data ) |
| { |
| cache.put( key, data ); |
| } |
| |
| static class GavCacheKey |
| { |
| |
| private final String gav; |
| |
| private final String tag; |
| |
| private final int hash; |
| |
| GavCacheKey( String groupId, String artifactId, String version, String tag ) |
| { |
| this( gav( groupId, artifactId, version ), tag ); |
| } |
| |
| GavCacheKey( String gav, String tag ) |
| { |
| this.gav = gav; |
| this.tag = tag; |
| this.hash = Objects.hash( gav, tag ); |
| } |
| |
| private static String gav( String groupId, String artifactId, String version ) |
| { |
| StringBuilder sb = new StringBuilder(); |
| if ( groupId != null ) |
| { |
| sb.append( groupId ); |
| } |
| sb.append( ":" ); |
| if ( artifactId != null ) |
| { |
| sb.append( artifactId ); |
| } |
| sb.append( ":" ); |
| if ( version != null ) |
| { |
| sb.append( version ); |
| } |
| return sb.toString(); |
| } |
| |
| @Override |
| public boolean equals( Object obj ) |
| { |
| if ( this == obj ) |
| { |
| return true; |
| } |
| if ( null == obj || !getClass().equals( obj.getClass() ) ) |
| { |
| return false; |
| } |
| GavCacheKey that = (GavCacheKey) obj; |
| return Objects.equals( this.gav, that.gav ) && Objects.equals( this.tag, that.tag ); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return hash; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "GavCacheKey{" |
| + "gav='" + gav + '\'' |
| + ", tag='" + tag + '\'' |
| + '}'; |
| } |
| } |
| |
| private static final class SourceCacheKey |
| { |
| private final Source source; |
| |
| private final String tag; |
| |
| private final int hash; |
| |
| SourceCacheKey( Source source, String tag ) |
| { |
| this.source = source; |
| this.tag = tag; |
| this.hash = Objects.hash( source, tag ); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "SourceCacheKey{" |
| + "source=" + source |
| + ", tag='" + tag + '\'' |
| + '}'; |
| } |
| |
| @Override |
| public boolean equals( Object obj ) |
| { |
| if ( this == obj ) |
| { |
| return true; |
| } |
| if ( null == obj || !getClass().equals( obj.getClass() ) ) |
| { |
| return false; |
| } |
| SourceCacheKey that = (SourceCacheKey) obj; |
| return Objects.equals( this.source, that.source ) && Objects.equals( this.tag, that.tag ); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return hash; |
| } |
| } |
| } |