| /* |
| * 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. |
| */ |
| package org.apache.maven.plugin; |
| |
| import java.util.List; |
| |
| import org.apache.maven.artifact.Artifact; |
| import org.apache.maven.project.ExtensionDescriptor; |
| import org.apache.maven.project.MavenProject; |
| import org.codehaus.plexus.classworlds.realm.ClassRealm; |
| |
| /** |
| * Caches extension class realms. <strong>Warning:</strong> This is an internal utility interface that is only public |
| * for technical reasons, it is not part of the public API. In particular, this interface can be changed or deleted |
| * without prior notice. |
| * |
| */ |
| public interface ExtensionRealmCache { |
| /** |
| * A cache key. |
| */ |
| interface Key { |
| // marker interface for cache keys |
| } |
| |
| /** |
| * CacheRecord |
| */ |
| class CacheRecord { |
| |
| private final ClassRealm realm; |
| |
| private final ExtensionDescriptor descriptor; |
| |
| private final List<Artifact> artifacts; |
| |
| CacheRecord(ClassRealm realm, ExtensionDescriptor descriptor, List<Artifact> artifacts) { |
| this.realm = realm; |
| this.descriptor = descriptor; |
| this.artifacts = artifacts; |
| } |
| |
| public ClassRealm getRealm() { |
| return realm; |
| } |
| |
| public ExtensionDescriptor getDescriptor() { |
| return descriptor; |
| } |
| |
| public List<Artifact> getArtifacts() { |
| return artifacts; |
| } |
| } |
| |
| Key createKey(List<Artifact> extensionArtifacts); |
| |
| CacheRecord get(Key key); |
| |
| CacheRecord put( |
| Key key, ClassRealm extensionRealm, ExtensionDescriptor extensionDescriptor, List<Artifact> artifacts); |
| |
| void flush(); |
| |
| /** |
| * Registers the specified cache record for usage with the given project. Integrators can use the information |
| * collected from this method in combination with a custom cache implementation to dispose unused records from the |
| * cache. |
| * |
| * @param project The project that employs the plugin realm, must not be {@code null}. |
| * @param record The cache record being used for the project, must not be {@code null}. |
| */ |
| void register(MavenProject project, Key key, CacheRecord record); |
| } |