/**
* Launch the specified call list.
*
* @param callList launch the call list
* @return {@code true} in case the launch was successful
*/
private boolean launchCallList(final List<String> callList) {
try {
final ProcessBuilder pBuilder = new ProcessBuilder(callList);
File workingDirectory = DirectoryManager.getInstance().getWorkingDirectory();
if (workingDirectory != null) {
pBuilder.directory(workingDirectory);
}
pBuilder.redirectErrorStream(true);
final Process proc = pBuilder.start();
proc.getOutputStream().close();
final StringBuilder outputBuffer = new StringBuilder();
outputReader = new BufferedReader(new InputStreamReader(proc.getInputStream()));
launchTimer.start();
cancelExecution = false;
while (true) {
if (cancelExecution) {
throw new IOException("Response Timeout.");
}
final String line = outputReader.readLine();
if (line == null) {
errorData = outputBuffer.toString().trim();
return false;
}
if (line.endsWith("Startup done.")) {
outputReader.close();
return true;
}
outputBuffer.append(line);
outputBuffer.append('\n');
}
} catch (@Nonnull final Exception e) {
final StringWriter sWriter = new StringWriter();
final PrintWriter writer = new PrintWriter(sWriter);
e.printStackTrace(writer);
writer.flush();
errorData = sWriter.toString();
return false;
} finally {
if (outputReader != null) {
try {
outputReader.close();
} catch (@Nonnull final IOException e) {
// nothing
}
}
outputReader = null;
}
}
/** Construct a new launcher and set the classpath and the class to launch. */
@SuppressWarnings("nls")
public JavaLauncher(final boolean snapshot) {
this.snapshot = snapshot;
launchTimer =
new Timer(
10000,
new Runnable() {
@Override
public void run() {
cancelExecution = true;
if (outputReader != null) {
try {
outputReader.close();
} catch (IOException ignored) {
}
}
}
});
launchTimer.stop();
launchTimer.setRepeats(false);
}
/**
* Disconnect the client-server connection and shut the socket along with all threads for sending
* and receiving down.
*/
@SuppressWarnings("nls")
public void disconnect() {
try {
if (keepAliveTimer != null) {
keepAliveTimer.stop();
keepAliveTimer = null;
}
// stop threads
if (sender != null) {
sender.saveShutdown();
sender = null;
}
if (inputThread != null) {
inputThread.saveShutdown();
inputThread = null;
}
if (messageHandler != null) {
messageHandler.saveShutdown();
messageHandler = null;
}
// wait for threads to react
try {
Thread.sleep(THREAD_WAIT_TIME);
} catch (@Nonnull final InterruptedException e) {
LOGGER.warn("Disconnecting wait got interrupted.");
}
inputQueue.clear();
outputQueue.clear();
// close connection
if (socket != null) {
socket.close();
socket = null;
}
} catch (@Nonnull final IOException e) {
LOGGER.warn("Disconnecting failed.", e);
}
}