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