org.gridgain.grid.util.ipc.loopback.GridIpcServerTcpEndpoint Maven / Gradle / Ivy

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/* 
 Copyright (C) GridGain Systems. All Rights Reserved.
 
 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 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.gridgain.grid.util.ipc.loopback;

import org.gridgain.grid.*;
import org.gridgain.grid.kernal.processors.ggfs.*;
import org.gridgain.grid.logger.*;
import org.gridgain.grid.resources.*;
import org.gridgain.grid.util.typedef.internal.*;
import org.gridgain.grid.util.ipc.*;

import java.io.*;
import java.net.*;

/**
 * Server loopback IPC endpoint.
 */
public class GridIpcServerTcpEndpoint implements GridIpcServerEndpoint {
    /** Default endpoint port number. */
    public static final int DFLT_IPC_PORT = 10500;

    /** Server socket. */
    private ServerSocket srvSock;

    /** Port to bind socket to. */
    private int port = DFLT_IPC_PORT;

    /** Host to bind socket to. */
    private String host;

    /** Management endpoint flag. */
    private boolean mgmt;

    /** Logger. */
    @GridLoggerResource
    private GridLogger log;

    /** {@inheritDoc} */
    @Override public void start() throws GridException {
        if (port <= 0 || port >= 0xffff)
            throw new GridGgfsIpcEndpointBindException("Port value is illegal: " + port);

        try {
            srvSock = new ServerSocket();

            assert host != null;

            srvSock.bind(new InetSocketAddress(U.resolveLocalHost(host), port));

            if (log.isInfoEnabled())
                log.info("IPC server loopback endpoint started [port=" + port + ']');
        }
        catch (IOException e) {
            if (srvSock != null)
                U.closeQuiet(srvSock);

            throw new GridGgfsIpcEndpointBindException("Failed to bind loopback IPC endpoint (is port already in " +
                "use?): " + port, e);
        }
    }

    /** {@inheritDoc} */
    @Override public GridIpcEndpoint accept() throws GridException {
        try {
            Socket sock = srvSock.accept();

            return new GridIpcClientTcpEndpoint(sock);
        }
        catch (IOException e) {
            throw new GridException(e);
        }
    }

    /** {@inheritDoc} */
    @Override public void close() {
        U.closeQuiet(srvSock);
    }

    /** {@inheritDoc} */
    @Override public int getPort() {
        return port;
    }

    /**
     * Sets port endpoint will be bound to.
     *
     * @param port Port number.
     */
    public void setPort(int port) {
        this.port = port;
    }

    /** {@inheritDoc} */
    @Override public String getHost() {
        return host;
    }

    /**
     * Sets host endpoint will be bound to.
     *
     * @param host Host.
     */
    public void setHost(String host) {
        this.host = host;
    }

    /** {@inheritDoc} */
    @Override public boolean isManagement() {
        return mgmt;
    }

    /**
     * Sets management property.
     *
     * @param mgmt flag.
     */
    public void setManagement(boolean mgmt) {
        this.mgmt = mgmt;
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(GridIpcServerTcpEndpoint.class, this);
    }
}