org.gwtcmis.service.relationship.RelationshipService.java Source code

Introduction

Here is the source code for org.gwtcmis.service.relationship.RelationshipService.java

Source

/**
 *  Copyright (C) 2010 eXo Platform SAS.
 *
 *  This is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation; either version 2.1 of
 *  the License, or (at your option) any later version.
 *
 *  This software is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this software; if not, write to the Free
 *  Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 *  02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.gwtcmis.service.relationship;

import org.gwtcmis.client.CmisArguments;
import org.gwtcmis.model.EnumRelationshipDirection;
import org.gwtcmis.model.restatom.EntryCollection;
import org.gwtcmis.rest.AsyncRequest;
import org.gwtcmis.rest.AsyncRequestCallback;
import org.gwtcmis.rest.ExceptionThrownEvent;
import org.gwtcmis.service.relationship.event.RelationshipsReceivedEvent;
import org.gwtcmis.unmarshallers.EntryCollectionUnmarshaller;

import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.http.client.RequestBuilder;

/**
 * Created by The eXo Platform SAS.
 *   
 * @author <a href="mailto:zhulevaanna@gmail.com">Ann Zhuleva</a>
 * @version $Id:   ${date} ${time}
 *
 */
public class RelationshipService {
    /**
     * Event bus.
     */
    private HandlerManager eventBus;

    /**
     * @param eventBus eventBus
     */
    public RelationshipService(HandlerManager eventBus) {
        this.eventBus = eventBus;
    }

    /**
     * Gets all or a subset of relationships associated with an independent object.
     * 
     * On success response received, {@link RelationshipsReceivedEvent} event is fired
     * 
     * @param url url
     * @param includeSubRelationshipTypes include sub relationship types
     * @param relationshipDirection relationship direction
     * @param typeId type id
     * @param maxItems max items
     * @param skipCount skip count
     * @param filter filter
     * @param includeAllowableActions include allowable actions
     */
    public void getObjectRelationships(String url, boolean includeSubRelationshipTypes,
            EnumRelationshipDirection relationshipDirection, String typeId, int maxItems, int skipCount,
            String filter, boolean includeAllowableActions) {
        EntryCollection relationships = new EntryCollection();
        RelationshipsReceivedEvent event = new RelationshipsReceivedEvent(relationships, relationshipDirection);
        ExceptionThrownEvent errorEvent = new ExceptionThrownEvent("Object's relationship was not recieved.");
        EntryCollectionUnmarshaller unmarshaller = new EntryCollectionUnmarshaller(relationships);

        String params = "";
        params += (maxItems < 0) ? "" : CmisArguments.MAX_ITEMS + "=" + maxItems + "&";
        params += (skipCount < 0) ? "" : CmisArguments.SKIP_COUNT + "=" + skipCount + "&";
        params += (filter == null || filter.length() <= 0) ? "" : CmisArguments.FILTER + "=" + filter + "&";
        params += CmisArguments.INCLUDE_ALLOWABLE_ACTIONS + "=" + includeAllowableActions + "&";
        params += CmisArguments.INCLUDE_SUB_RELATIONSHIP_TYPES + "=" + includeSubRelationshipTypes;
        params += (skipCount < 0) ? "" : CmisArguments.SKIP_COUNT + "=" + skipCount;
        params += (relationshipDirection == null) ? ""
                : CmisArguments.RELATIONSHIP_DIRECTION + "=" + relationshipDirection.value();
        url = (url.contains("?")) ? (url + "&" + params) : (url + "?" + params);
        AsyncRequestCallback callback = new AsyncRequestCallback(eventBus, unmarshaller, event, errorEvent);
        AsyncRequest.build(RequestBuilder.GET, url).send(callback);
    }
}