001package org.eclipse.aether.internal.impl.filter; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.util.ArrayList; 023import java.util.Collection; 024import java.util.List; 025 026import org.eclipse.aether.repository.RemoteRepository; 027import org.eclipse.aether.spi.connector.ArtifactDownload; 028import org.eclipse.aether.spi.connector.ArtifactUpload; 029import org.eclipse.aether.spi.connector.MetadataDownload; 030import org.eclipse.aether.spi.connector.MetadataUpload; 031import org.eclipse.aether.spi.connector.RepositoryConnector; 032import org.eclipse.aether.spi.connector.filter.RemoteRepositoryFilter; 033import org.eclipse.aether.transfer.ArtifactNotFoundException; 034import org.eclipse.aether.transfer.MetadataNotFoundException; 035 036import static java.util.Objects.requireNonNull; 037 038/** 039 * A filtering connector that filter transfers using remote repository filter and delegates to another connector. 040 * 041 * @since 1.9.0 042 */ 043public final class FilteringRepositoryConnector 044 implements RepositoryConnector 045{ 046 private final RemoteRepository remoteRepository; 047 048 private final RepositoryConnector delegate; 049 050 private final RemoteRepositoryFilter remoteRepositoryFilter; 051 052 public FilteringRepositoryConnector( RemoteRepository remoteRepository, 053 RepositoryConnector delegate, 054 RemoteRepositoryFilter remoteRepositoryFilter ) 055 { 056 this.remoteRepository = requireNonNull( remoteRepository ); 057 this.delegate = requireNonNull( delegate ); 058 this.remoteRepositoryFilter = requireNonNull( remoteRepositoryFilter ); 059 } 060 061 @Override 062 public void close() 063 { 064 delegate.close(); 065 } 066 067 @Override 068 public void get( Collection<? extends ArtifactDownload> artifactDownloads, 069 Collection<? extends MetadataDownload> metadataDownloads ) 070 { 071 List<ArtifactDownload> filteredArtifactDownloads = null; 072 if ( artifactDownloads != null && !artifactDownloads.isEmpty() ) 073 { 074 filteredArtifactDownloads = new ArrayList<>( artifactDownloads.size() ); 075 for ( ArtifactDownload artifactDownload : artifactDownloads ) 076 { 077 RemoteRepositoryFilter.Result result = remoteRepositoryFilter.acceptArtifact( 078 remoteRepository, artifactDownload.getArtifact() ); 079 if ( result.isAccepted() ) 080 { 081 filteredArtifactDownloads.add( artifactDownload ); 082 } 083 else 084 { 085 artifactDownload.setException( new ArtifactNotFoundException( artifactDownload.getArtifact(), 086 remoteRepository, result.reasoning() ) ); 087 } 088 } 089 } 090 List<MetadataDownload> filteredMetadataDownloads = null; 091 if ( metadataDownloads != null && !metadataDownloads.isEmpty() ) 092 { 093 filteredMetadataDownloads = new ArrayList<>( metadataDownloads.size() ); 094 for ( MetadataDownload metadataDownload : metadataDownloads ) 095 { 096 RemoteRepositoryFilter.Result result = remoteRepositoryFilter.acceptMetadata( 097 remoteRepository, metadataDownload.getMetadata() ); 098 if ( result.isAccepted() ) 099 { 100 filteredMetadataDownloads.add( metadataDownload ); 101 } 102 else 103 { 104 metadataDownload.setException( new MetadataNotFoundException( metadataDownload.getMetadata(), 105 remoteRepository, result.reasoning() ) ); 106 } 107 } 108 } 109 delegate.get( filteredArtifactDownloads, filteredMetadataDownloads ); 110 } 111 112 @Override 113 public void put( Collection<? extends ArtifactUpload> artifactUploads, 114 Collection<? extends MetadataUpload> metadataUploads ) 115 { 116 delegate.put( artifactUploads, metadataUploads ); 117 } 118 119 @Override 120 public String toString() 121 { 122 return "filtered(" + delegate.toString() + ")"; 123 } 124}