| /* |
| * 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.server.impl.atompub; |
| |
| import java.math.BigInteger; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| 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.exceptions.CmisRuntimeException; |
| import org.apache.chemistry.opencmis.commons.impl.Constants; |
| import org.apache.chemistry.opencmis.commons.impl.UrlBuilder; |
| import org.apache.chemistry.opencmis.commons.server.CallContext; |
| import org.apache.chemistry.opencmis.commons.server.CmisService; |
| import org.apache.chemistry.opencmis.commons.server.ObjectInfo; |
| |
| /** |
| * Relationship Service operations. |
| */ |
| public class RelationshipService { |
| |
| /** |
| * Get object relationships. |
| */ |
| public static class GetObjectRelationships extends AbstractAtomPubServiceCall { |
| public void serve(CallContext context, CmisService service, String repositoryId, HttpServletRequest request, |
| HttpServletResponse response) throws Exception { |
| assert context != null; |
| assert service != null; |
| assert repositoryId != null; |
| assert request != null; |
| assert response != null; |
| |
| // get parameters |
| String objectId = getStringParameter(request, Constants.PARAM_ID); |
| Boolean includeSubRelationshipTypes = getBooleanParameter(request, Constants.PARAM_SUB_RELATIONSHIP_TYPES); |
| RelationshipDirection relationshipDirection = getEnumParameter(request, |
| Constants.PARAM_RELATIONSHIP_DIRECTION, RelationshipDirection.class); |
| String typeId = getStringParameter(request, Constants.PARAM_TYPE_ID); |
| String filter = getStringParameter(request, Constants.PARAM_FILTER); |
| Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS); |
| BigInteger maxItems = getBigIntegerParameter(request, Constants.PARAM_MAX_ITEMS); |
| BigInteger skipCount = getBigIntegerParameter(request, Constants.PARAM_SKIP_COUNT); |
| |
| // execute |
| if (stopBeforeService(service)) { |
| return; |
| } |
| |
| ObjectList relationships = service.getObjectRelationships(repositoryId, objectId, |
| includeSubRelationshipTypes, relationshipDirection, typeId, filter, includeAllowableActions, |
| maxItems, skipCount, null); |
| |
| if (stopAfterService(service)) { |
| return; |
| } |
| |
| if (relationships == null) { |
| throw new CmisRuntimeException("Relationships are null!"); |
| } |
| |
| ObjectInfo objectInfo = service.getObjectInfo(repositoryId, objectId); |
| if (objectInfo == null) { |
| throw new CmisRuntimeException("Object Info is missing!"); |
| } |
| |
| // set headers |
| response.setStatus(HttpServletResponse.SC_OK); |
| response.setContentType(Constants.MEDIATYPE_FEED); |
| |
| // write XML |
| AtomFeed feed = new AtomFeed(); |
| feed.startDocument(response.getOutputStream(), getNamespaces(service)); |
| feed.startFeed(true); |
| |
| // write basic Atom feed elements |
| feed.writeFeedElements(objectInfo.getId(), objectInfo.getAtomId(), objectInfo.getCreatedBy(), |
| objectInfo.getName(), objectInfo.getLastModificationDate(), null, relationships.getNumItems()); |
| |
| // write links |
| UrlBuilder baseUrl = compileBaseUrl(request, repositoryId); |
| |
| feed.writeServiceLink(baseUrl.toString(), repositoryId); |
| |
| UrlBuilder selfLink = compileUrlBuilder(baseUrl, RESOURCE_RELATIONSHIPS, objectInfo.getId()); |
| selfLink.addParameter(Constants.PARAM_SUB_RELATIONSHIP_TYPES, includeSubRelationshipTypes); |
| selfLink.addParameter(Constants.PARAM_RELATIONSHIP_DIRECTION, relationshipDirection); |
| selfLink.addParameter(Constants.PARAM_TYPE_ID, typeId); |
| selfLink.addParameter(Constants.PARAM_FILTER, filter); |
| selfLink.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| selfLink.addParameter(Constants.PARAM_MAX_ITEMS, maxItems); |
| selfLink.addParameter(Constants.PARAM_SKIP_COUNT, skipCount); |
| feed.writeSelfLink(selfLink.toString(), null); |
| |
| UrlBuilder pagingUrl = new UrlBuilder( |
| compileUrlBuilder(baseUrl, RESOURCE_RELATIONSHIPS, objectInfo.getId())); |
| pagingUrl.addParameter(Constants.PARAM_SUB_RELATIONSHIP_TYPES, includeSubRelationshipTypes); |
| pagingUrl.addParameter(Constants.PARAM_RELATIONSHIP_DIRECTION, relationshipDirection); |
| pagingUrl.addParameter(Constants.PARAM_TYPE_ID, typeId); |
| pagingUrl.addParameter(Constants.PARAM_FILTER, filter); |
| pagingUrl.addParameter(Constants.PARAM_ALLOWABLE_ACTIONS, includeAllowableActions); |
| feed.writePagingLinks(pagingUrl, maxItems, skipCount, relationships.getNumItems(), |
| relationships.hasMoreItems(), PAGE_SIZE); |
| |
| // write entries |
| AtomEntry entry = new AtomEntry(feed.getWriter()); |
| for (ObjectData object : relationships.getObjects()) { |
| if (object == null) { |
| continue; |
| } |
| writeObjectEntry(service, entry, object, null, repositoryId, null, null, baseUrl, false, |
| context.getCmisVersion()); |
| } |
| |
| // write extensions |
| feed.writeExtensions(relationships); |
| |
| // we are done |
| feed.endFeed(); |
| feed.endDocument(); |
| } |
| } |
| } |