| package org.apache.maven.artifact.resolver.filter; |
| |
| /* |
| * 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.Collection; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * Filter to only retain objects in the given scope or better. This implementation allows the accumulation of multiple |
| * scopes and their associated implied scopes, so that the user can filter apply a series of implication rules in a |
| * single step. This should be a more efficient implementation of multiple standard {@link ScopeArtifactFilter} |
| * instances ORed together. |
| * |
| * @author <a href="mailto:brett@apache.org">Brett Porter</a> |
| * @author jdcasey |
| */ |
| public class CumulativeScopeArtifactFilter |
| extends AbstractScopeArtifactFilter |
| { |
| |
| private Set<String> scopes; |
| |
| /** |
| * Create a new filter with the specified scopes and their implied scopes enabled. |
| * |
| * @param scopes The scopes to enable, along with all implied scopes, may be {@code null}. |
| */ |
| public CumulativeScopeArtifactFilter( Collection<String> scopes ) |
| { |
| this.scopes = new HashSet<>(); |
| |
| addScopes( scopes ); |
| } |
| |
| /** |
| * Creates a new filter that combines the specified filters. |
| * |
| * @param filters The filters to combine, may be {@code null}. |
| */ |
| public CumulativeScopeArtifactFilter( CumulativeScopeArtifactFilter... filters ) |
| { |
| this.scopes = new HashSet<>(); |
| |
| if ( filters != null ) |
| { |
| for ( CumulativeScopeArtifactFilter filter : filters ) |
| { |
| addScopes( filter.getScopes() ); |
| } |
| } |
| } |
| |
| private void addScopes( Collection<String> scopes ) |
| { |
| if ( scopes != null ) |
| { |
| for ( String scope : scopes ) |
| { |
| addScope( scope ); |
| } |
| } |
| } |
| |
| private void addScope( String scope ) |
| { |
| this.scopes.add( scope ); |
| |
| addScopeInternal( scope ); |
| } |
| |
| public Set<String> getScopes() |
| { |
| return scopes; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int hash = 17; |
| |
| hash = hash * 31 + scopes.hashCode(); |
| |
| return hash; |
| } |
| |
| @Override |
| public boolean equals( Object obj ) |
| { |
| if ( this == obj ) |
| { |
| return true; |
| } |
| |
| if ( !( obj instanceof CumulativeScopeArtifactFilter ) ) |
| { |
| return false; |
| } |
| |
| CumulativeScopeArtifactFilter that = (CumulativeScopeArtifactFilter) obj; |
| |
| return scopes.equals( that.scopes ); |
| } |
| |
| } |