/*
* 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 static org.apache.chemistry.opencmis.commons.impl.Converter.convert;
import java.math.BigInteger;
import java.util.ArrayList;
import org.apache.chemistry.opencmis.client.bindings.spi.Session;
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.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.impl.jaxb.CmisObjectType;
import org.apache.chemistry.opencmis.commons.spi.RelationshipService;
/**
* Relationship Service AtomPub client.
*
* @author <a href="mailto:fmueller@opentext.com">Florian Müller</a>
*
*/
public class RelationshipServiceImpl extends AbstractAtomPubService implements RelationshipService {
/**
* Constructor.
*/
public RelationshipServiceImpl(Session session) {
setSession(session);
}
/*
* (non-Javadoc)
*
* @seeorg.apache.opencmis.client.provider.RelationshipService#
* getObjectRelationships(java.lang.String , java.lang.String,
* java.lang.Boolean,
* org.apache.opencmis.commons.enums.RelationshipDirection,
* java.lang.String, java.lang.String, java.lang.Boolean,
* java.math.BigInteger, java.math.BigInteger,
* org.apache.opencmis.client.provider.ExtensionsData)
*/
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
HttpUtils.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 CmisObjectType) {
relationship = convert((CmisObjectType) element.getObject());
}
}
} finally {
unlockLinks();
}
if (relationship != null) {
result.getObjects().add(relationship);
}
}
}
return result;
}
}