001/* 002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.directory.multi; 023 024import java.util.ArrayList; 025import java.util.HashSet; 026import java.util.List; 027import java.util.Set; 028 029import org.apache.commons.logging.Log; 030import org.apache.commons.logging.LogFactory; 031import org.nuxeo.ecm.directory.AbstractReference; 032import org.nuxeo.ecm.directory.Directory; 033import org.nuxeo.ecm.directory.DirectoryEntryNotFoundException; 034import org.nuxeo.ecm.directory.DirectoryException; 035import org.nuxeo.ecm.directory.Reference; 036import org.nuxeo.ecm.directory.api.DirectoryService; 037import org.nuxeo.runtime.api.Framework; 038 039public class MultiReference extends AbstractReference { 040 041 private static final Log log = LogFactory.getLog(MultiReference.class); 042 043 final MultiDirectory dir; 044 045 final String fieldName; 046 047 MultiReference(MultiDirectory dir, String fieldName) { 048 this.dir = dir; 049 this.fieldName = fieldName; 050 } 051 052 public void addLinks(String sourceId, List<String> targetIds) throws DirectoryException { 053 throw new UnsupportedOperationException(); 054 } 055 056 public void addLinks(List<String> sourceIds, String targetId) throws DirectoryException { 057 throw new UnsupportedOperationException(); 058 } 059 060 protected interface Collector { 061 List<String> collect(List<Reference> dir) throws DirectoryException; 062 } 063 064 protected List<String> doCollect(Collector extractor) throws DirectoryException { 065 DirectoryService dirService = Framework.getService(DirectoryService.class); 066 Set<String> ids = new HashSet<String>(); 067 for (SourceDescriptor src : dir.getDescriptor().sources) { 068 for (SubDirectoryDescriptor sub : src.subDirectories) { 069 Directory dir = dirService.getDirectory(sub.name); 070 if (dir == null) { 071 continue; 072 } 073 List<Reference> ref = dir.getReferences(fieldName); 074 if (ref == null) { 075 continue; 076 } 077 try { 078 ids.addAll(extractor.collect(ref)); 079 } catch (DirectoryEntryNotFoundException e) { 080 log.debug(e.getMessage()); 081 } 082 } 083 } 084 List<String> x = new ArrayList<String>(ids.size()); 085 x.addAll(ids); 086 return x; 087 } 088 089 public List<String> getSourceIdsForTarget(final String targetId) throws DirectoryException { 090 return doCollect(new Collector() { 091 public List<String> collect(List<Reference> refs) throws DirectoryException { 092 List<String> sourceIds = new ArrayList<>(1); 093 for (Reference ref : refs) { 094 sourceIds.addAll(ref.getSourceIdsForTarget(targetId)); 095 } 096 return sourceIds; 097 } 098 }); 099 } 100 101 public List<String> getTargetIdsForSource(final String sourceId) throws DirectoryException { 102 return doCollect(new Collector() { 103 public List<String> collect(List<Reference> refs) throws DirectoryException { 104 List<String> targetIds = new ArrayList<>(1); 105 for (Reference ref : refs) { 106 targetIds.addAll(ref.getSourceIdsForTarget(sourceId)); 107 } 108 return targetIds; 109 } 110 }); 111 } 112 113 public void removeLinksForSource(String sourceId) throws DirectoryException { 114 throw new UnsupportedOperationException(); 115 } 116 117 public void removeLinksForTarget(String targetId) throws DirectoryException { 118 throw new UnsupportedOperationException(); 119 } 120 121 public void setSourceIdsForTarget(String targetId, List<String> sourceIds) throws DirectoryException { 122 throw new UnsupportedOperationException(); 123 } 124 125 public void setTargetIdsForSource(String sourceId, List<String> targetIds) throws DirectoryException { 126 throw new UnsupportedOperationException(); 127 } 128 129 /** 130 * @since 5.6 131 */ 132 @Override 133 protected AbstractReference newInstance() { 134 return new MultiReference(dir, fieldName); 135 } 136 137 /** 138 * @since 5.6 139 */ 140 @Override 141 public AbstractReference clone() { 142 return super.clone(); 143 } 144 145}