/*
 * Copyright 2009-2010 by The Regents of the University of California
 * 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 from
 * 
 *     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 edu.uci.ics.hyracks.control.cc.work;

import org.json.JSONArray;

import edu.uci.ics.hyracks.control.cc.ClusterControllerService;
import edu.uci.ics.hyracks.control.cc.NodeControllerState;
import edu.uci.ics.hyracks.control.common.work.SynchronizableWork;

public class GetNodeSummariesJSONWork extends SynchronizableWork {
    private final ClusterControllerService ccs;
    private JSONArray summaries;

    public GetNodeSummariesJSONWork(ClusterControllerService ccs) {
        this.ccs = ccs;
    }

    @Override
    protected void doRun() throws Exception {
        summaries = new JSONArray();
        for (NodeControllerState ncs : ccs.getNodeMap().values()) {
            summaries.put(ncs.toSummaryJSON());
        }
    }

    public JSONArray getSummaries() {
        return summaries;
    }
}