hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/application/CCApplicationContext.java

package edu.uci.ics.hyracks.control.cc.application;

import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
import edu.uci.ics.hyracks.api.application.ICCBootstrap;
import edu.uci.ics.hyracks.api.context.ICCContext;
import edu.uci.ics.hyracks.api.exceptions.HyracksException;
import edu.uci.ics.hyracks.api.job.IJobLifecycleListener;
import edu.uci.ics.hyracks.api.job.IJobSpecificationFactory;
import edu.uci.ics.hyracks.api.job.JobSpecification;
import edu.uci.ics.hyracks.control.cc.job.DeserializingJobSpecificationFactory;
import edu.uci.ics.hyracks.control.common.application.ApplicationContext;
import edu.uci.ics.hyracks.control.common.context.ServerContext;

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

    private IJobSpecificationFactory jobSpecFactory;

    private List<IJobLifecycleListener> jobLifecycleListeners;

    public CCApplicationContext(ServerContext serverCtx, ICCContext ccContext, String appName) throws IOException {
        super(serverCtx, appName);
        this.ccContext = ccContext;
        jobSpecFactory = DeserializingJobSpecificationFactory.INSTANCE;
        jobLifecycleListeners = new ArrayList<IJobLifecycleListener>();
    }

    @Override
    protected void start() throws Exception {
        ((ICCBootstrap) bootstrap).setApplicationContext(this);
        bootstrap.start();
    }

    public ICCContext getCCContext() {
        return ccContext;
    }

    @Override
    public void setJobSpecificationFactory(IJobSpecificationFactory jobSpecFactory) {
        this.jobSpecFactory = jobSpecFactory;
    }

    public JobSpecification createJobSpecification(UUID jobId, byte[] bytes) throws HyracksException {
        return jobSpecFactory.createJobSpecification(bytes, (ICCBootstrap) bootstrap, this);
    }

    @Override
    protected void stop() throws Exception {
        if (bootstrap != null) {
            bootstrap.stop();
        }
    }

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

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

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

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

    public synchronized void notifyJobCreation(UUID jobId, JobSpecification specification) throws HyracksException {
        for (IJobLifecycleListener l : jobLifecycleListeners) {
            l.notifyJobCreation(jobId, specification);
        }
    }
}