hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/CliDeployBinaryWork.java

/*
 * Copyright 2009-2013 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 java.net.URL;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import java.util.UUID;

import edu.uci.ics.hyracks.api.deployment.DeploymentId;
import edu.uci.ics.hyracks.control.cc.ClusterControllerService;
import edu.uci.ics.hyracks.control.cc.NodeControllerState;
import edu.uci.ics.hyracks.control.common.deployment.DeploymentRun;
import edu.uci.ics.hyracks.control.common.deployment.DeploymentUtils;
import edu.uci.ics.hyracks.control.common.work.IPCResponder;
import edu.uci.ics.hyracks.control.common.work.SynchronizableWork;

/***
 * This is the work happens on the CC for a dynamic deployment.
 * It first deploys the jar to CC application context.
 * Then, it remotely calls each NC service to deploy the jars listed as http URLs.
 * NOTE: in current implementation, a user cannot deploy with the same deployment id simultaneously.
 * 
 * @author yingyib
 */
public class CliDeployBinaryWork extends SynchronizableWork {

    private ClusterControllerService ccs;
    private List<URL> binaryURLs;
    private DeploymentId deploymentId;
    private IPCResponder<DeploymentId> callback;

    public CliDeployBinaryWork(ClusterControllerService ncs, List<URL> binaryURLs, DeploymentId deploymentId,
            IPCResponder<DeploymentId> callback) {
        this.ccs = ncs;
        this.binaryURLs = binaryURLs;
        this.deploymentId = deploymentId;
        this.callback = callback;
    }

    @Override
    public void doRun() {
        try {
            if (deploymentId == null) {
                deploymentId = new DeploymentId(UUID.randomUUID().toString());
            }
            /**
             * Deploy for the cluster controller
             */
            DeploymentUtils.deploy(deploymentId, binaryURLs, ccs.getApplicationContext()
                    .getJobSerializerDeserializerContainer(), ccs.getServerContext(), false);

            /**
             * Deploy for the node controllers
             */
            Map<String, NodeControllerState> nodeControllerStateMap = ccs.getNodeMap();

            Set<String> nodeIds = new TreeSet<String>();
            for (String nc : nodeControllerStateMap.keySet()) {
                nodeIds.add(nc);
            }
            final DeploymentRun dRun = new DeploymentRun(nodeIds);

            /** The following call prevents a user to deploy with the same deployment id simultaneously. */
            ccs.addDeploymentRun(deploymentId, dRun);

            /***
             * deploy binaries to each node controller
             */
            for (NodeControllerState ncs : nodeControllerStateMap.values()) {
                ncs.getNodeController().deployBinary(deploymentId, binaryURLs);
            }

            ccs.getExecutor().execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        /**
                         * wait for completion
                         */
                        dRun.waitForCompletion();
                        ccs.removeDeploymentRun(deploymentId);
                        callback.setValue(deploymentId);
                    } catch (Exception e) {
                        callback.setException(e);
                    }
                }
            });
        } catch (Exception e) {
            callback.setException(e);
        }
    }
}