org.apache.hms.controller.rest.ClusterManager.java Source code

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Here is the source code for org.apache.hms.controller.rest.ClusterManager.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hms.controller.rest;

import java.io.IOException;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hms.common.entity.cluster.MachineState;
import org.apache.hms.common.entity.command.CreateClusterCommand;
import org.apache.hms.common.entity.command.CreateCommand;
import org.apache.hms.common.entity.command.DeleteClusterCommand;
import org.apache.hms.common.entity.command.DeleteCommand;
import org.apache.hms.common.entity.command.StatusCommand;
import org.apache.hms.common.entity.manifest.ClusterManifest;
import org.apache.hms.common.entity.manifest.ConfigManifest;
import org.apache.hms.common.entity.manifest.NodesManifest;
import org.apache.hms.common.entity.manifest.SoftwareManifest;
import org.apache.hms.common.entity.Response;
import org.apache.hms.common.util.ExceptionUtil;
import org.apache.hms.controller.Controller;

@Path("cluster")
public class ClusterManager {
    private static String HOSTNAME;
    private static String DEFAULT_URL;

    public ClusterManager() {
        InetAddress addr;
        try {
            addr = InetAddress.getLocalHost();
            byte[] ipAddr = addr.getAddress();
            HOSTNAME = addr.getHostName();
        } catch (UnknownHostException e) {
            HOSTNAME = "localhost";
        }
        StringBuilder buffer = new StringBuilder();
        buffer.append("http://");
        buffer.append(HOSTNAME);
        buffer.append(":");
        buffer.append(Controller.CONTROLLER_PORT);
        buffer.append("/");
        buffer.append(Controller.CONTROLLER_PREFIX);
        DEFAULT_URL = buffer.toString();
    }

    private static Log LOG = LogFactory.getLog(ClusterManager.class);

    //  @POST
    //  @Path("create")
    //  public Response createCluster(CreateCommand cmd) {
    //    try {
    //      return Controller.getInstance().getClientHandler().createCluster(cmd);
    //    } catch (IOException e) {
    //      throw new WebApplicationException(e);
    //    }
    //  }
    //  
    //  @POST
    //  @Path("delete")
    //  public Response deleteCluster(DeleteCommand cmd) {
    //    try {
    //      LOG.info("received: " + cmd);
    //      Response r = Controller.getInstance().getClientHandler().deleteCluster(cmd);
    //      LOG.info("response is: " + r.getOutput());
    //      return r;
    //    } catch (IOException e) {
    //      LOG.warn("got excpetion: " + e);
    //      throw new WebApplicationException(e);
    //    }
    //  }

    @GET
    @Path("status/{clusterId}")
    public ClusterManifest checkStatus(@PathParam("clusterId") String clusterId) {
        try {
            return Controller.getInstance().getClientHandler().checkClusterStatus(clusterId);
        } catch (IOException e) {
            LOG.warn(ExceptionUtil.getStackTrace(e));
            throw new WebApplicationException(e);
        }
    }

    @GET
    @Path("node/status")
    public MachineState checkNodeStatus(@QueryParam("node") String nodeId) {
        try {
            return Controller.getInstance().getClientHandler().checkNodeStatus(nodeId);
        } catch (IOException e) {
            LOG.warn(ExceptionUtil.getStackTrace(e));
            throw new WebApplicationException(e);
        }
    }

    @GET
    @Path("manifest/create-cluster-sample")
    public CreateClusterCommand getCreateClusterSample(@QueryParam("expand") boolean expand,
            @QueryParam("name") String clusterName) {
        try {
            URL nodeUrl = new URL(DEFAULT_URL + "/nodes/manifest/sample");
            URL softwareUrl = new URL(DEFAULT_URL + "/software/manifest/sample");
            URL configUrl = new URL(DEFAULT_URL + "/config/manifest/create-hadoop-cluster");
            CreateClusterCommand command = new CreateClusterCommand();
            ClusterManifest cm = new ClusterManifest();
            if (clusterName != null) {
                cm.setClusterName(clusterName);
            }
            NodesManifest nodesM = new NodesManifest();
            nodesM.setUrl(nodeUrl);
            cm.setNodes(nodesM);
            SoftwareManifest softwareM = new SoftwareManifest();
            softwareM.setUrl(softwareUrl);
            cm.setSoftware(softwareM);
            ConfigManifest configM = new ConfigManifest();
            configM.setUrl(configUrl);
            cm.setConfig(configM);
            if (expand) {
                cm.load();
            }
            command.setClusterManifest(cm);
            return command;
        } catch (IOException e) {
            throw new WebApplicationException(e);
        }
    }

    @GET
    @Path("manifest/delete-cluster-sample")
    public DeleteClusterCommand getDeleteClusterSample(@QueryParam("expand") boolean expand,
            @QueryParam("name") String clusterName) {
        try {
            URL nodeUrl = new URL(DEFAULT_URL + "/nodes/manifest/sample");
            URL softwareUrl = new URL(DEFAULT_URL + "/software/manifest/sample");
            URL configUrl = new URL(DEFAULT_URL + "/config/manifest/delete-hadoop-cluster");

            DeleteClusterCommand command = new DeleteClusterCommand();
            ClusterManifest cm = new ClusterManifest();
            if (clusterName != null) {
                cm.setClusterName(clusterName);
            }
            NodesManifest nodesM = new NodesManifest();
            nodesM.setUrl(nodeUrl);
            cm.setNodes(nodesM);
            SoftwareManifest softwareM = new SoftwareManifest();
            softwareM.setUrl(softwareUrl);
            cm.setSoftware(softwareM);
            ConfigManifest configM = new ConfigManifest();
            configM.setUrl(configUrl);
            cm.setConfig(configM);
            if (expand) {
                cm.load();
            }
            command.setClusterManifest(cm);
            return command;
        } catch (IOException e) {
            throw new WebApplicationException(e);
        }
    }

    @GET
    @Path("list")
    public List<ClusterManifest> listClusters() {
        try {
            List<ClusterManifest> list = Controller.getInstance().getClientHandler().listClusters();
            return list;
        } catch (IOException e) {
            throw new WebApplicationException(e);
        }
    }
}