org.apache.airavata.gfac.server.GfacServer.java Source code

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Here is the source code for org.apache.airavata.gfac.server.GfacServer.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.airavata.gfac.server;

import org.apache.airavata.common.utils.IServer;
import org.apache.airavata.common.utils.ServerSettings;
import org.apache.airavata.gfac.core.GFacThreadPoolExecutor;
import org.apache.airavata.gfac.cpi.GfacService;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TThreadPoolServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TServerTransport;
import org.apache.thrift.transport.TTransportException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.InetSocketAddress;

public class GfacServer implements IServer {

    private final static Logger logger = LoggerFactory.getLogger(GfacServer.class);
    private static final String SERVER_NAME = "Gfac Server";
    private static final String SERVER_VERSION = "1.0";

    private IServer.ServerStatus status;

    private TServer server;

    public GfacServer() {
        setStatus(IServer.ServerStatus.STOPPED);
    }

    public void StartGfacServer(GfacService.Processor<GfacServerHandler> gfacServerHandlerProcessor)
            throws Exception {
        final int serverPort = Integer.parseInt(ServerSettings.getGFacServerPort());
        try {
            final String serverHost = ServerSettings.getGfacServerHost();

            InetSocketAddress inetSocketAddress = new InetSocketAddress(serverHost, serverPort);

            TServerTransport serverTransport = new TServerSocket(inetSocketAddress);

            server = new TThreadPoolServer(
                    new TThreadPoolServer.Args(serverTransport).processor(gfacServerHandlerProcessor));

            new Thread() {
                public void run() {
                    server.serve();
                    setStatus(ServerStatus.STARTING);
                    logger.info("Starting Gfac Server ...");
                }
            }.start();
            new Thread() {
                public void run() {
                    while (!server.isServing()) {
                        try {
                            Thread.sleep(500);
                        } catch (InterruptedException e) {
                            break;
                        }
                    }
                    if (server.isServing()) {
                        setStatus(IServer.ServerStatus.STARTED);
                        logger.info("Started Gfac Server on Port " + serverPort + " ...");
                    }
                }
            }.start();
        } catch (TTransportException e) {
            logger.error(e.getMessage());
            setStatus(IServer.ServerStatus.FAILED);
            logger.error("Failed to start Gfac server on port " + serverPort + " ...");
        }
    }

    public static void main(String[] args) {
        try {
            new GfacServer().start();
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }
    }

    public void start() throws Exception {
        setStatus(IServer.ServerStatus.STARTING);
        GfacService.Processor<GfacServerHandler> gfacService = new GfacService.Processor<GfacServerHandler>(
                new GfacServerHandler());
        StartGfacServer(gfacService);
    }

    public void stop() throws Exception {
        if (server != null && server.isServing()) {
            setStatus(IServer.ServerStatus.STOPING);
            server.stop();
        }
        GFacThreadPoolExecutor.getCachedThreadPool().shutdownNow();

    }

    public void restart() throws Exception {
        stop();
        start();
    }

    public void configure() throws Exception {
        // TODO Auto-generated method stub

    }

    public IServer.ServerStatus getStatus() throws Exception {
        return status;
    }

    private void setStatus(IServer.ServerStatus stat) {
        status = stat;
        status.updateTime();
    }

    public String getName() {
        return SERVER_NAME;
    }

    public String getVersion() {
        return SERVER_VERSION;
    }
}