/*
 * 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.application;

import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
import edu.uci.ics.hyracks.api.context.ICCContext;
import edu.uci.ics.hyracks.api.exceptions.HyracksException;
import edu.uci.ics.hyracks.api.job.IActivityClusterGraphGeneratorFactory;
import edu.uci.ics.hyracks.api.job.IJobLifecycleListener;
import edu.uci.ics.hyracks.api.job.JobId;
import edu.uci.ics.hyracks.control.common.application.ApplicationContext;
import edu.uci.ics.hyracks.control.common.context.ServerContext;
import edu.uci.ics.hyracks.control.common.work.IResultCallback;

public class CCApplicationContext extends ApplicationContext implements ICCApplicationContext {
    private final ICCContext ccContext;

    protected final Set<String> initPendingNodeIds;
    protected final Set<String> deinitPendingNodeIds;

    protected IResultCallback<Object> initializationCallback;
    protected IResultCallback<Object> deinitializationCallback;

    private List<IJobLifecycleListener> jobLifecycleListeners;

    public CCApplicationContext(ServerContext serverCtx, ICCContext ccContext) throws IOException {
        super(serverCtx);
        this.ccContext = ccContext;
        initPendingNodeIds = new HashSet<String>();
        deinitPendingNodeIds = new HashSet<String>();
        jobLifecycleListeners = new ArrayList<IJobLifecycleListener>();
    }

    public ICCContext getCCContext() {
        return ccContext;
    }

    @Override
    public void setDistributedState(Serializable state) {
        this.distributedState = state;
    }

    @Override
    public void addJobLifecycleListener(IJobLifecycleListener jobLifecycleListener) {
        jobLifecycleListeners.add(jobLifecycleListener);
    }

    public synchronized void notifyJobStart(JobId jobId) throws HyracksException {
        for (IJobLifecycleListener l : jobLifecycleListeners) {
            l.notifyJobStart(jobId);
        }
    }

    public synchronized void notifyJobFinish(JobId jobId) throws HyracksException {
        for (IJobLifecycleListener l : jobLifecycleListeners) {
            l.notifyJobFinish(jobId);
        }
    }

    public synchronized void notifyJobCreation(JobId jobId, IActivityClusterGraphGeneratorFactory acggf)
            throws HyracksException {
        for (IJobLifecycleListener l : jobLifecycleListeners) {
            l.notifyJobCreation(jobId, acggf);
        }
    }
}