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/********************************************************************************
* Copyright (c) 2008 Motorola Inc. All rights reserved.
* This program and the accompanying materials are made available under the terms
* of the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Initial Contributor:
* Otávio Ferranti (Motorola)
*
* Contributors:
* {Name} (company) - description of contribution.
********************************************************************************/
package org.eclipse.tml.linuxtools.network.telnet;
import java.io.IOException;
import org.eclipse.tml.common.utilities.logger.ILogger;
import org.eclipse.tml.linuxtools.LinuxToolsPlugin;
import org.eclipse.tml.linuxtools.network.IConnectionProvider;
import org.eclipse.tml.linuxtools.network.IConstants.CommandCode;
import org.eclipse.tml.linuxtools.network.IConstants.EventCode;
import org.eclipse.tml.linuxtools.network.IConstants.OperationCode;
import org.eclipse.tml.linuxtools.tools.AbstractNotifier;
/**
* @author Otávio Ferranti
*/
public class TelnetProvider extends AbstractNotifier implements IConnectionProvider {
final private String CMD_FETCH_PREFIX = "cat "; //$NON-NLS-1$
private TelnetWrapper connectionWrapper = null;
private ILogger logger = null;
private Thread connectThread = null;
private Thread loginThread = null;
private Thread sendCommandThread = null;
/**
* The constructor.
*/
public TelnetProvider() {
connectionWrapper = new TelnetWrapper();
logger = LinuxToolsPlugin.getLogger();
}
/**
* This method will be executed in a separated thread and will produce
* an event to be sent to the registered listeners.
*/
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#connect(java.lang.String, int)
*/
public void connect(String host, int port) throws IOException {
final String hostAux = host;
final int portAux = port;
final TelnetWrapper connectionWrapperAux = connectionWrapper;
/*TODO: Enhance this. It would be great if all these executed-in-other threads
were located under a synchronized block */
connectThread = new Thread() {
public void run() {
try {
OperationCode opCode;
opCode = connectionWrapperAux.connect(hostAux, portAux);
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_CONNECT_FINISHED, opCode);
} catch (IOException ie) {
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_CONNECT_ERROR,
OperationCode.UNEXPECTED_RESULT);
}
}
};
connectThread.start();
}
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#disconnect()
*/
public void disconnect() throws IOException {
if (null != connectThread &&
connectThread.isAlive()) {
connectThread.interrupt();
}
if (null != loginThread &&
loginThread.isAlive()) {
loginThread.interrupt();
}
if (null != sendCommandThread &&
sendCommandThread.isAlive()) {
sendCommandThread.interrupt();
}
connectionWrapper.disconnect();
notifyListeners(
EventCode.EVT_PROVIDER_DISCONNECT_FINISHED, OperationCode.SUCCESS);
}
/**
* This method will be executed in a separated thread and will produce
* an event to be sent to the registered listeners.
*/
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#login(java.lang.String, java.lang.String)
*/
public void login(String user, String password) throws IOException {
final String userAux = user;
final String passwordAux = password;
final TelnetWrapper connectionWrapperAux = connectionWrapper;
/*TODO: Enhance this. It would be great if all these executed-in-other threads
were located under a synchronized block */
loginThread = new Thread() {
public void run() {
try {
OperationCode opCode;
opCode = connectionWrapperAux.login(userAux, passwordAux);
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_LOGIN_FINISHED, opCode);
} catch (IOException ie) {
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_LOGIN_ERROR,
OperationCode.UNEXPECTED_RESULT);
}
}
};
loginThread.start();
}
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#getLastResponde()
*/
public StringBuffer getLastResponde() {
return connectionWrapper.getLastResponde();
}
/**
* This method will be executed in a separated thread and will produce
* an event to be sent to the registered listeners.
*/
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#sendCommand(java.lang.String)
*/
public void sendCommand(CommandCode cmd, String cmdStr) throws IOException {
if (CommandCode.FETCH_FILE != cmd) {
return;
}
final String commandAux = CMD_FETCH_PREFIX + cmdStr + "\n"; //$NON-NLS-1$
final TelnetWrapper connectionWrapperAux = connectionWrapper;
/*TODO: Enhance this. It would be great if all these executed-in-other threads
were located under a synchronized block */
sendCommandThread = new Thread() {
public void run() {
try {
connectionWrapperAux.setResponseLength(2048);
if (null != connectionWrapperAux.sendCommand(commandAux)) {
StringBuffer result = connectionWrapperAux.getLastResponde();
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_SENDCOMMAND_FINISHED, result);
} else {
logger.info("##### NULL ######");
}
} catch (IOException ie) {
TelnetProvider.this.notifyListeners(
EventCode.EVT_PROVIDER_SENDCOMMAND_ERROR, null);
}
}
};
sendCommandThread.start();
}
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#sendData(java.lang.String)
*/
public void sendData(String out) {
connectionWrapper.sendData(out);
}
/* (non-Javadoc)
* @see org.eclipse.tml.linuxmemorymapviewer.network.IConnectionProvider#setResponseLength(int)
*/
public void setResponseLength(int maxLength) {
connectionWrapper.setResponseLength(maxLength);
}
}
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