org.apache.tajo.ws.rs.TajoRestService.java Source code

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Here is the source code for org.apache.tajo.ws.rs.TajoRestService.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.tajo.ws.rs;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.service.CompositeService;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.master.TajoMaster.MasterContext;
import org.apache.tajo.plan.serder.PlanGsonHelper;
import org.apache.tajo.ws.rs.netty.NettyRestServer;
import org.apache.tajo.ws.rs.netty.NettyRestServerFactory;
import org.apache.tajo.ws.rs.netty.gson.GsonFeature;
import org.glassfish.jersey.filter.LoggingFilter;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.ServerProperties;

import java.net.InetSocketAddress;
import java.net.URI;

public class TajoRestService extends CompositeService {

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

    private MasterContext masterContext;
    private NettyRestServer restServer;

    public TajoRestService(MasterContext masterContext) {
        super(TajoRestService.class.getName());

        this.masterContext = masterContext;
    }

    @Override
    protected void serviceInit(Configuration conf) throws Exception {
        GsonFeature gsonFeature = new GsonFeature(PlanGsonHelper.registerAdapters());

        ClientApplication clientApplication = new ClientApplication(masterContext);
        ResourceConfig resourceConfig = ResourceConfig.forApplication(clientApplication).register(gsonFeature)
                .register(LoggingFilter.class).property(ServerProperties.FEATURE_AUTO_DISCOVERY_DISABLE, true)
                .property(ServerProperties.METAINF_SERVICES_LOOKUP_DISABLE, true);
        TajoConf tajoConf = (TajoConf) conf;

        InetSocketAddress address = tajoConf.getSocketAddrVar(TajoConf.ConfVars.REST_SERVICE_ADDRESS);
        URI restServiceURI = new URI("http", null, address.getHostName(), address.getPort(), "/rest", null, null);
        int workerCount = TajoConf.getIntVar(tajoConf, TajoConf.ConfVars.REST_SERVICE_RPC_SERVER_WORKER_THREAD_NUM);
        restServer = NettyRestServerFactory.createNettyRestServer(restServiceURI, resourceConfig, workerCount,
                false);

        super.serviceInit(conf);

        LOG.info("Tajo Rest Service initialized.");
    }

    @Override
    protected void serviceStart() throws Exception {
        restServer.start();

        super.serviceStart();

        LOG.info("Tajo Rest Service started.");
    }

    @Override
    protected void serviceStop() throws Exception {
        super.serviceStop();

        if (restServer != null) {
            restServer.shutdown();
        }

        LOG.info("Tajo Rest Service stopped.");
    }

    public InetSocketAddress getBindAddress() {
        return restServer.getListenAddress();
    }

}