diff options
Diffstat (limited to 'framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginRealmCache.java')
| -rw-r--r-- | framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginRealmCache.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginRealmCache.java b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginRealmCache.java new file mode 100644 index 00000000..6c8288ee --- /dev/null +++ b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginRealmCache.java @@ -0,0 +1,219 @@ +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 java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +import org.apache.maven.artifact.Artifact; +import org.apache.maven.model.Plugin; +import org.apache.maven.project.MavenProject; +import org.codehaus.plexus.classworlds.realm.ClassRealm; +import org.codehaus.plexus.classworlds.realm.NoSuchRealmException; +import org.codehaus.plexus.component.annotations.Component; +import org.codehaus.plexus.personality.plexus.lifecycle.phase.Disposable; +import org.eclipse.aether.RepositorySystemSession; +import org.eclipse.aether.graph.DependencyFilter; +import org.eclipse.aether.repository.LocalRepository; +import org.eclipse.aether.repository.RemoteRepository; +import org.eclipse.aether.repository.WorkspaceRepository; + +/** + * Default PluginCache implementation. Assumes cached data does not change. + */ +@Component( role = PluginRealmCache.class ) +public class DefaultPluginRealmCache + implements PluginRealmCache, Disposable +{ + + protected static class CacheKey + implements Key + { + + private final Plugin plugin; + + private final WorkspaceRepository workspace; + + private final LocalRepository localRepo; + + private final List<RemoteRepository> repositories; + + private final ClassLoader parentRealm; + + private final Map<String, ClassLoader> foreignImports; + + private final DependencyFilter filter; + + private final int hashCode; + + public CacheKey( Plugin plugin, ClassLoader parentRealm, Map<String, ClassLoader> foreignImports, + DependencyFilter dependencyFilter, List<RemoteRepository> repositories, + RepositorySystemSession session ) + { + this.plugin = plugin.clone(); + this.workspace = CacheUtils.getWorkspace( session ); + this.localRepo = session.getLocalRepository(); + this.repositories = new ArrayList<RemoteRepository>( repositories.size() ); + for ( RemoteRepository repository : repositories ) + { + if ( repository.isRepositoryManager() ) + { + this.repositories.addAll( repository.getMirroredRepositories() ); + } + else + { + this.repositories.add( repository ); + } + } + this.parentRealm = parentRealm; + this.foreignImports = + ( foreignImports != null ) ? foreignImports : Collections.<String, ClassLoader>emptyMap(); + this.filter = dependencyFilter; + + int hash = 17; + hash = hash * 31 + CacheUtils.pluginHashCode( plugin ); + hash = hash * 31 + hash( workspace ); + hash = hash * 31 + hash( localRepo ); + hash = hash * 31 + CacheUtils.repositoriesHashCode( repositories ); + hash = hash * 31 + hash( parentRealm ); + hash = hash * 31 + this.foreignImports.hashCode(); + hash = hash * 31 + hash( dependencyFilter ); + this.hashCode = hash; + } + + @Override + public String toString() + { + return plugin.getId(); + } + + @Override + public int hashCode() + { + return hashCode; + } + + private static int hash( Object obj ) + { + return obj != null ? obj.hashCode() : 0; + } + + @Override + public boolean equals( Object o ) + { + if ( o == this ) + { + return true; + } + + if ( !( o instanceof CacheKey ) ) + { + return false; + } + + CacheKey that = (CacheKey) o; + + return parentRealm == that.parentRealm && CacheUtils.pluginEquals( plugin, that.plugin ) + && eq( workspace, that.workspace ) && eq( localRepo, that.localRepo ) + && CacheUtils.repositoriesEquals( this.repositories, that.repositories ) && eq( filter, that.filter ) + && eq( foreignImports, that.foreignImports ); + } + + private static <T> boolean eq( T s1, T s2 ) + { + return s1 != null ? s1.equals( s2 ) : s2 == null; + } + + } + + protected final Map<Key, CacheRecord> cache = new ConcurrentHashMap<Key, CacheRecord>(); + + public Key createKey( Plugin plugin, ClassLoader parentRealm, Map<String, ClassLoader> foreignImports, + DependencyFilter dependencyFilter, List<RemoteRepository> repositories, + RepositorySystemSession session ) + { + return new CacheKey( plugin, parentRealm, foreignImports, dependencyFilter, repositories, session ); + } + + public CacheRecord get( Key key ) + { + return cache.get( key ); + } + + public CacheRecord put( Key key, ClassRealm pluginRealm, List<Artifact> pluginArtifacts ) + { + if ( pluginRealm == null || pluginArtifacts == null ) + { + throw new IllegalArgumentException(); + } + + if ( cache.containsKey( key ) ) + { + throw new IllegalStateException( "Duplicate plugin realm for plugin " + key ); + } + + CacheRecord record = new CacheRecord( pluginRealm, pluginArtifacts ); + + cache.put( key, record ); + + return record; + } + + public void flush() + { + for ( CacheRecord record : cache.values() ) + { + ClassRealm realm = record.realm; + try + { + realm.getWorld().disposeRealm( realm.getId() ); + } + catch ( NoSuchRealmException e ) + { + // ignore + } + } + cache.clear(); + } + + protected static int pluginHashCode( Plugin plugin ) + { + return CacheUtils.pluginHashCode( plugin ); + } + + protected static boolean pluginEquals( Plugin a, Plugin b ) + { + return CacheUtils.pluginEquals( a, b ); + } + + public void register( MavenProject project, Key key, CacheRecord record ) + { + // default cache does not track plugin usage + } + + public void dispose() + { + flush(); + } + +} |