com.caucho.boot
Class WatchdogServlet

java.lang.Object
  javax.servlet.GenericServlet
      com.caucho.hessian.server.HessianServlet
          com.caucho.boot.WatchdogServlet

All Implemented Interfaces:

WatchdogAPI, java.io.Serializable, Servlet, ServletConfig

public class WatchdogServlet
extends HessianServlet
implements WatchdogAPI

Process responsible for watching a backend server.

See Also:

Serialized Form

Constructor Summary

WatchdogServlet()

Method Summary

void	init() Initialize the servlet.
void	kill(java.lang.String password, java.lang.String serverId) Kills the named server, terminating the process.
void	restart(java.lang.String password, java.lang.String serverId, java.lang.String[] argv) Restarts the server with the given arguments.
boolean	shutdown(java.lang.String password) Shuts the entire watchdog manager down.
void	start(java.lang.String password, java.lang.String[] argv) Starts the server with the given arguments.
java.lang.String	status(java.lang.String password) Returns the status of the watchdog manager
void	stop(java.lang.String password, java.lang.String serverId) Stops the named server

Methods inherited from class com.caucho.hessian.server.HessianServlet

createHessian2Input, getAPIClass, getSerializerFactory, getServletInfo, init, service, setAPIClass, setDebug, setHome, setHomeAPI, setLogName, setObject, setObjectAPI, setSendCollectionType, setSerializerFactory, setService

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletName, log, log, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

WatchdogServlet

public WatchdogServlet()

Method Detail

init

public void init()

Description copied from class: GenericServlet

Initialize the servlet. Servlets should override this method if they need any initialization like opening pooled database connections.

Overrides:

init in class GenericServlet

status

public java.lang.String status(java.lang.String password)
                        throws ConfigException,
                               java.lang.IllegalStateException

Description copied from interface: WatchdogAPI

Returns the status of the watchdog manager

Specified by:

status in interface WatchdogAPI

Parameters:

password - the watchdog password

Returns:

a user-readable status report

Throws:

ConfigException

java.lang.IllegalStateException

start

public void start(java.lang.String password,
                  java.lang.String[] argv)
           throws ConfigException,
                  java.lang.IllegalStateException

Description copied from interface: WatchdogAPI

Starts the server with the given arguments. If the start fails, a ConfigException is thrown.

Specified by:

start in interface WatchdogAPI

Throws:

ConfigException

java.lang.IllegalStateException

restart

public void restart(java.lang.String password,
                    java.lang.String serverId,
                    java.lang.String[] argv)

Description copied from interface: WatchdogAPI

Restarts the server with the given arguments.

Specified by:

restart in interface WatchdogAPI

Parameters:

password - watchdog password

serverId - the server to be restarted

argv - the new arguments for the server

stop

public void stop(java.lang.String password,
                 java.lang.String serverId)

Description copied from interface: WatchdogAPI

Stops the named server

Specified by:

stop in interface WatchdogAPI

Parameters:

password - the watchdog password

serverId - the server to stop

kill

public void kill(java.lang.String password,
                 java.lang.String serverId)

Description copied from interface: WatchdogAPI

Kills the named server, terminating the process.

Specified by:

kill in interface WatchdogAPI

Parameters:

password - the watchdog password

serverId - the server to kill

shutdown

public boolean shutdown(java.lang.String password)

Description copied from interface: WatchdogAPI

Shuts the entire watchdog manager down.

Specified by:

shutdown in interface WatchdogAPI

Returns:

true on success