2008-07-10 01:18:05 +02:00
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/*
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* Copyright (c) 2008, 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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2008-07-10 16:52:59 +02:00
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* $Id: SerialConnection.java,v 1.2 2008/07/10 14:52:59 nifi Exp $
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2008-07-10 01:18:05 +02:00
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*
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* -----------------------------------------------------------------
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*
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* SerialConnection
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*
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* Authors : Joakim Eriksson, Niclas Finne
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* Created : 5 jul 2008
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2008-07-10 16:52:59 +02:00
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* Updated : $Date: 2008/07/10 14:52:59 $
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* $Revision: 1.2 $
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2008-07-10 01:18:05 +02:00
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*/
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package se.sics.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.OutputStreamWriter;
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import java.io.PrintWriter;
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/**
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*
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*/
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public abstract class SerialConnection {
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public static final String SERIALDUMP_WINDOWS = "./tools/serialdump-windows.exe";
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public static final String SERIALDUMP_LINUX = "./tools/serialdump-linux";
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private String comPort;
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private Process serialDumpProcess;
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private PrintWriter serialOutput;
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2008-07-10 16:52:59 +02:00
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protected boolean isOpen;
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protected boolean isClosed = true;
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protected String lastError;
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2008-07-10 01:18:05 +02:00
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public boolean isOpen() {
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return isOpen;
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}
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public String getComPort() {
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return comPort;
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}
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2008-07-10 16:52:59 +02:00
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public void setComPort(String comPort) {
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this.comPort = comPort;
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}
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2008-07-10 01:18:05 +02:00
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public String getLastError() {
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return lastError;
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}
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public void open(String comPort) {
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2008-07-10 16:52:59 +02:00
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if (comPort == null) {
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throw new IllegalStateException("no com port");
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}
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2008-07-10 01:18:05 +02:00
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close();
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this.comPort = comPort;
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2008-07-10 16:52:59 +02:00
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2008-07-10 01:18:05 +02:00
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/* Connect to COM using external serialdump application */
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String osName = System.getProperty("os.name").toLowerCase();
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String fullCommand;
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if (osName.startsWith("win")) {
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fullCommand = SERIALDUMP_WINDOWS + " " + "-b115200" + " " + getMappedComPortForWindows(comPort);
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} else {
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fullCommand = SERIALDUMP_LINUX + " " + "-b115200" + " " + comPort;
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}
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2008-07-10 16:52:59 +02:00
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isClosed = false;
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2008-07-10 01:18:05 +02:00
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try {
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String[] cmd = fullCommand.split(" ");
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serialDumpProcess = Runtime.getRuntime().exec(cmd);
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final BufferedReader input = new BufferedReader(new InputStreamReader(serialDumpProcess.getInputStream()));
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final BufferedReader err = new BufferedReader(new InputStreamReader(serialDumpProcess.getErrorStream()));
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serialOutput = new PrintWriter(new OutputStreamWriter(serialDumpProcess.getOutputStream()));
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/* Start thread listening on stdout */
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Thread readInput = new Thread(new Runnable() {
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public void run() {
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String line;
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try {
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while ((line = input.readLine()) != null) {
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serialData(line);
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}
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input.close();
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System.out.println("Serialdump process terminated.");
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closeConnection();
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} catch (IOException e) {
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lastError = "Error when reading from serialdump process: " + 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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}, "read input stream thread");
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/* Start thread listening on stderr */
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Thread readError = new Thread(new Runnable() {
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public void run() {
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String line;
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try {
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while ((line = err.readLine()) != null) {
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if (!isOpen && line.startsWith("connecting") && line.endsWith("[OK]")) {
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isOpen = true;
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serialOpened();
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} else {
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System.err.println("Serialdump error stream> " + line);
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}
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}
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err.close();
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} catch (IOException e) {
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System.err.println("Error when reading from serialdump process: " + e);
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e.printStackTrace();
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}
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}
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}, "read error stream thread");
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readInput.start();
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readError.start();
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} catch (Exception e) {
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lastError = "Failed to execute '" + fullCommand + "': " + 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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private String getMappedComPortForWindows(String comPort) {
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if (comPort.startsWith("COM")) {
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comPort = "/dev/com" + comPort.substring(3);
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}
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return comPort;
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}
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public void writeSerialData(String data) {
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PrintWriter serialOutput = this.serialOutput;
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if (serialOutput != null) {
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serialOutput.println(data);
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serialOutput.flush();
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}
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}
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public void close() {
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2008-07-10 16:52:59 +02:00
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isClosed = true;
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2008-07-10 01:18:05 +02:00
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lastError = null;
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closeConnection();
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}
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protected void closeConnection() {
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2008-07-10 16:52:59 +02:00
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isOpen = false;
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2008-07-10 01:18:05 +02:00
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if (serialOutput != null) {
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serialOutput.close();
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serialOutput = null;
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}
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if (serialDumpProcess != null) {
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serialDumpProcess.destroy();
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serialDumpProcess = null;
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}
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2008-07-10 16:52:59 +02:00
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serialClosed();
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2008-07-10 01:18:05 +02:00
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}
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protected abstract void serialData(String line);
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protected abstract void serialOpened();
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protected abstract void serialClosed();
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}
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