diff options
Diffstat (limited to 'framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/CacheUtils.java')
| -rw-r--r-- | framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/CacheUtils.java | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/CacheUtils.java b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/CacheUtils.java new file mode 100644 index 00000000..a73e1efe --- /dev/null +++ b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/plugin/CacheUtils.java @@ -0,0 +1,211 @@ +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.Iterator; +import java.util.List; + +import org.apache.maven.model.Dependency; +import org.apache.maven.model.Exclusion; +import org.apache.maven.model.Plugin; +import org.eclipse.aether.RepositorySystemSession; +import org.eclipse.aether.repository.RemoteRepository; +import org.eclipse.aether.repository.RepositoryPolicy; +import org.eclipse.aether.repository.WorkspaceReader; +import org.eclipse.aether.repository.WorkspaceRepository; + +/** + * @author Benjamin Bentmann + */ +class CacheUtils +{ + + public static <T> boolean eq( T s1, T s2 ) + { + return s1 != null ? s1.equals( s2 ) : s2 == null; + } + + public static int hash( Object obj ) + { + return obj != null ? obj.hashCode() : 0; + } + + public static int repositoriesHashCode( List<RemoteRepository> repositories ) + { + int result = 17; + for ( RemoteRepository repository : repositories ) + { + result = 31 * result + repositoryHashCode( repository ); + } + return result; + } + + private static int repositoryHashCode( RemoteRepository repository ) + { + int result = 17; + result = 31 * result + hash( repository.getUrl() ); + return result; + } + + private static boolean repositoryEquals( RemoteRepository r1, RemoteRepository r2 ) + { + if ( r1 == r2 ) + { + return true; + } + + return eq( r1.getId(), r2.getId() ) && eq( r1.getUrl(), r2.getUrl() ) + && policyEquals( r1.getPolicy( false ), r2.getPolicy( false ) ) + && policyEquals( r1.getPolicy( true ), r2.getPolicy( true ) ); + } + + private static boolean policyEquals( RepositoryPolicy p1, RepositoryPolicy p2 ) + { + if ( p1 == p2 ) + { + return true; + } + // update policy doesn't affect contents + return p1.isEnabled() == p2.isEnabled() && eq( p1.getChecksumPolicy(), p2.getChecksumPolicy() ); + } + + public static boolean repositoriesEquals( List<RemoteRepository> r1, List<RemoteRepository> r2 ) + { + if ( r1.size() != r2.size() ) + { + return false; + } + + for ( Iterator<RemoteRepository> it1 = r1.iterator(), it2 = r2.iterator(); it1.hasNext(); ) + { + if ( !repositoryEquals( it1.next(), it2.next() ) ) + { + return false; + } + } + + return true; + } + + public static int pluginHashCode( Plugin plugin ) + { + int hash = 17; + + hash = hash * 31 + hash( plugin.getGroupId() ); + hash = hash * 31 + hash( plugin.getArtifactId() ); + hash = hash * 31 + hash( plugin.getVersion() ); + + hash = hash * 31 + ( plugin.isExtensions() ? 1 : 0 ); + + for ( Dependency dependency : plugin.getDependencies() ) + { + hash = hash * 31 + hash( dependency.getGroupId() ); + hash = hash * 31 + hash( dependency.getArtifactId() ); + hash = hash * 31 + hash( dependency.getVersion() ); + hash = hash * 31 + hash( dependency.getType() ); + hash = hash * 31 + hash( dependency.getClassifier() ); + hash = hash * 31 + hash( dependency.getScope() ); + + for ( Exclusion exclusion : dependency.getExclusions() ) + { + hash = hash * 31 + hash( exclusion.getGroupId() ); + hash = hash * 31 + hash( exclusion.getArtifactId() ); + } + } + + return hash; + } + + public static boolean pluginEquals( Plugin a, Plugin b ) + { + return eq( a.getArtifactId(), b.getArtifactId() ) // + && eq( a.getGroupId(), b.getGroupId() ) // + && eq( a.getVersion(), b.getVersion() ) // + && a.isExtensions() == b.isExtensions() // + && dependenciesEquals( a.getDependencies(), b.getDependencies() ); + } + + private static boolean dependenciesEquals( List<Dependency> a, List<Dependency> b ) + { + if ( a.size() != b.size() ) + { + return false; + } + + Iterator<Dependency> aI = a.iterator(); + Iterator<Dependency> bI = b.iterator(); + + while ( aI.hasNext() ) + { + Dependency aD = aI.next(); + Dependency bD = bI.next(); + + boolean r = eq( aD.getGroupId(), bD.getGroupId() ) // + && eq( aD.getArtifactId(), bD.getArtifactId() ) // + && eq( aD.getVersion(), bD.getVersion() ) // + && eq( aD.getType(), bD.getType() ) // + && eq( aD.getClassifier(), bD.getClassifier() ) // + && eq( aD.getScope(), bD.getScope() ); + + r &= exclusionsEquals( aD.getExclusions(), bD.getExclusions() ); + + if ( !r ) + { + return false; + } + } + + return true; + } + + private static boolean exclusionsEquals( List<Exclusion> a, List<Exclusion> b ) + { + if ( a.size() != b.size() ) + { + return false; + } + + Iterator<Exclusion> aI = a.iterator(); + Iterator<Exclusion> bI = b.iterator(); + + while ( aI.hasNext() ) + { + Exclusion aD = aI.next(); + Exclusion bD = bI.next(); + + boolean r = eq( aD.getGroupId(), bD.getGroupId() ) // + && eq( aD.getArtifactId(), bD.getArtifactId() ); + + if ( !r ) + { + return false; + } + } + + return true; + } + + public static WorkspaceRepository getWorkspace( RepositorySystemSession session ) + { + WorkspaceReader reader = session.getWorkspaceReader(); + return ( reader != null ) ? reader.getRepository() : null; + } + +} |