/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* Licensed 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.eurekastreams.web.client.model;
import java.io.Serializable;
import org.eurekastreams.server.domain.PagedSet;
import org.eurekastreams.server.domain.stream.ActivityDTO;
import org.eurekastreams.web.client.events.data.GotStreamResponseEvent;
import org.eurekastreams.web.client.ui.Session;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
/**
* Stream Model.
*
*/
public class StreamModel extends BaseModel implements Fetchable<Serializable>
{
/**
* Singleton.
*/
private static StreamModel model = new StreamModel();
/**
* Gets the singleton.
*
* @return the singleton.
*/
public static StreamModel getInstance()
{
return model;
}
/**
* {@inheritDoc}
*/
public void fetch(final Serializable request, final boolean useClientCacheIfAvailable)
{
super.callReadAction("getActivitiesByRequest", request, new OnSuccessCommand<PagedSet<ActivityDTO>>()
{
public void onSuccess(final PagedSet<ActivityDTO> response)
{
String requestStr = (String) request;
JSONObject queryObject = JSONParser.parse(requestStr).isObject().get("query").isObject();
String sortString = queryObject.get("sortBy").isString().stringValue();
Session.getInstance().getEventBus().notifyObservers(
new GotStreamResponseEvent(response, requestStr, sortString));
}
}, useClientCacheIfAvailable);
}
}