| /* |
| * 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. |
| */ |
| package org.apache.chemistry.opencmis.client.bindings.spi.atompub; |
| |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| |
| import org.apache.chemistry.opencmis.client.bindings.spi.BindingSession; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomElement; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomEntry; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomFeed; |
| import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomLink; |
| import org.apache.chemistry.opencmis.client.bindings.spi.http.Response; |
| import org.apache.chemistry.opencmis.commons.data.ExtensionsData; |
| import org.apache.chemistry.opencmis.commons.data.ObjectData; |
| import org.apache.chemistry.opencmis.commons.data.ObjectList; |
| import org.apache.chemistry.opencmis.commons.enums.RelationshipDirection; |
| import org.apache.chemistry.opencmis.commons.impl.Constants; |
| import org.apache.chemistry.opencmis.commons.impl.UrlBuilder; |
| import org.apache.chemistry.opencmis.commons.impl.dataobjects.ObjectListImpl; |
| import org.apache.chemistry.opencmis.commons.spi.RelationshipService; |
| |
| /** |
| * Relationship Service AtomPub client. |
| */ |
| public class RelationshipServiceImpl extends AbstractAtomPubService implements RelationshipService { |
| |
| /** |
| * Constructor. |
| */ |
| public RelationshipServiceImpl(BindingSession session) { |
| setSession(session); |
| } |
| |
| public ObjectList getObjectRelationships(String repositoryId, String objectId, Boolean includeSubRelationshipTypes, |
| RelationshipDirection relationshipDirection, String typeId, String filter, Boolean includeAllowableActions, |
| BigInteger maxItems, BigInteger skipCount, ExtensionsData extension) { |
| ObjectListImpl result = new ObjectListImpl(); |
| |
| // find the link |
| String link = loadLink(repositoryId, objectId, Constants.REL_RELATIONSHIPS, Constants.MEDIATYPE_FEED); |
| |
| if (link == null) { |
| throwLinkException(repositoryId, objectId, Constants.REL_RELATIONSHIPS, Constants.MEDIATYPE_FEED); |
| } |
| |
| UrlBuilder url = new UrlBuilder(link); |
| url.addParameter(Constants.PARAM_SUB_RELATIONSHIP_TYPES, includeSubRelationshipTypes); |
| url.addParameter(Constants.PARAM_RELATIONSHIP_DIRECTION, relationshipDirection); |
| url.addParameter(Constants.PARAM_TYPE_ID, typeId); |
| url.addParameter(Constants.PARAM_FILTER, filter); |
| url.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| url.addParameter(Constants.PARAM_MAX_ITEMS, maxItems); |
| url.addParameter(Constants.PARAM_SKIP_COUNT, skipCount); |
| |
| // read and parse |
| Response resp = read(url); |
| AtomFeed feed = parse(resp.getStream(), AtomFeed.class); |
| |
| // handle top level |
| for (AtomElement element : feed.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| if (isNextLink(element)) { |
| result.setHasMoreItems(Boolean.TRUE); |
| } |
| } else if (isInt(NAME_NUM_ITEMS, element)) { |
| result.setNumItems((BigInteger) element.getObject()); |
| } |
| } |
| |
| // get the children |
| if (!feed.getEntries().isEmpty()) { |
| result.setObjects(new ArrayList<ObjectData>(feed.getEntries().size())); |
| |
| for (AtomEntry entry : feed.getEntries()) { |
| ObjectData relationship = null; |
| |
| lockLinks(); |
| try { |
| // clean up cache |
| removeLinks(repositoryId, entry.getId()); |
| |
| // walk through the entry |
| for (AtomElement element : entry.getElements()) { |
| if (element.getObject() instanceof AtomLink) { |
| addLink(repositoryId, entry.getId(), (AtomLink) element.getObject()); |
| } else if (element.getObject() instanceof ObjectData) { |
| relationship = (ObjectData) element.getObject(); |
| } |
| } |
| } finally { |
| unlockLinks(); |
| } |
| |
| if (relationship != null) { |
| result.getObjects().add(relationship); |
| } |
| } |
| |
| } |
| |
| return result; |
| } |
| } |