131 lines
4.5 KiB
Java
131 lines
4.5 KiB
Java
/*
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* Copyright (c) 2012, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* -----------------------------------------------------------------
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*
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* TCPClientConnection
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*
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* Authors : Niclas Finne
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*/
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package org.contikios.contiki.collect;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.PrintStream;
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import java.net.Socket;
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/**
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*
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*/
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public class TCPClientConnection extends SerialConnection {
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private final String host;
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private final int port;
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private Socket client;
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private BufferedReader in;
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private PrintStream out;
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public TCPClientConnection(SerialConnectionListener listener, String host, int port) {
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super(listener);
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this.host = host;
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this.port = port;
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}
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@Override
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public String getConnectionName() {
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return "<tcp://" + host + ':' + port + '>';
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}
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@Override
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public void open(String comPort) {
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close();
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this.comPort = comPort == null ? "" : comPort;
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isClosed = false;
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try {
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client = new Socket(host, port);
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in = new BufferedReader(new InputStreamReader(client.getInputStream()));
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out = new PrintStream(client.getOutputStream());
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System.out.println("Opened TCP connection to " + host + ':' + port);
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/* Start thread listening on UDP */
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Thread readInput = new Thread(new Runnable() {
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public void run() {
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try {
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String line;
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while (isOpen && (line = in.readLine()) != null) {
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serialData(line);
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}
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} catch (IOException e) {
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lastError = "Error when reading from SerialConnection TCP: " + e;
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System.err.println(lastError);
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if (!isClosed) {
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e.printStackTrace();
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closeConnection();
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}
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} finally {
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System.out.println("SerialConnection TCP terminated.");
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closeConnection();
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}
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}
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}, "TCP thread");
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isOpen = true;
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serialOpened();
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readInput.start();
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} catch (Exception e) {
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lastError = "Failed to open TCP connection to " + host + ':' + port + ": " + e;
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System.err.println(lastError);
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e.printStackTrace();
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closeConnection();
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}
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}
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@Override
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protected void doClose() {
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try {
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if (in != null) {
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in.close();
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in = null;
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}
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if (out != null) {
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out.close();
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out = null;
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}
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if (client != null) {
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client.close();
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client = null;
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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