org.cloudcoder.daemon

Class DaemonLauncher

java.lang.Object

org.cloudcoder.daemon.DaemonLauncher

public class DaemonLauncher
extends java.lang.Object

Launch a daemon process in the background and create a FIFO used to send commands to the daemon.

Author:

David Hovemeyer

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DEFAULT_STDOUT_LOG_FILE

Constructor Summary

Constructors

Constructor and Description
DaemonLauncher() Constructor.

Method Summary

Modifier and Type	Method and Description
void	launch(java.lang.String instanceName, java.lang.Class<?> daemonClass) Launch the daemon as a background process (with a FIFO for communication).
static void	main(java.lang.String[] args) This is the main method invoked by the shell command used to start the background process.
void	setJvmOptions(java.lang.String jvmOptions) Set options to be passed to the JVM (e.g., "-Xmx1024m -Djavax.net.debug=all").
void	setStdoutLogFile(java.lang.String stdoutLogFile) Set the name of the file to which the stdout/stderr of the daemon will be redirected.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_STDOUT_LOG_FILE

public static final java.lang.String DEFAULT_STDOUT_LOG_FILE

See Also:

Constant Field Values

Constructor Detail

DaemonLauncher

public DaemonLauncher()

Constructor.

Method Detail

setStdoutLogFile

public void setStdoutLogFile(java.lang.String stdoutLogFile)

Set the name of the file to which the stdout/stderr of the daemon will be redirected.

Parameters:

stdoutLogFile - name of stdout/stderr log file

setJvmOptions

public void setJvmOptions(java.lang.String jvmOptions)

Set options to be passed to the JVM (e.g., "-Xmx1024m -Djavax.net.debug=all").

Parameters:

jvmOptions - options to be passed to the JVM

launch

public void launch(java.lang.String instanceName,
                   java.lang.Class<?> daemonClass)
            throws DaemonException

Launch the daemon as a background process (with a FIFO for communication).

Parameters:

instanceName - the instance name to use

daemonClass - the daemon class

Throws:

DaemonException

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

This is the main method invoked by the shell command used to start the background process. This should not be called directly.

Parameters:

args - arguments

Throws:

java.io.IOException

java.lang.Exception