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Class w3c.jigsaw.daemon.ServerHandlerManager

java.lang.Object
   |
   +----w3c.jigsaw.daemon.ServerHandlerManager

public class ServerHandlerManager
extends Object

A ServerHandlerManager instance manages a set of ServerHandler.

CLASS_P: The server handler property class suffix.
CLONES_P: The server handler property clones prefix.
commandLine: Command line options that were provided at launch time.
handlers: The list of running server handlers.
HANDLERS_P: The property containing the servers to be launched at startup time.
manager: The Application-Wide server manager.
props: The server handler manager property list.
SERVER_GROUP_P
SERVER_USER_P

enumerateServerHandlers(): Enumerate all the server handler manager's identifiers.
error(String): Emit a non-fatal error.
fatal(String): Emit a fatal error.
getCommandLine(): Get the command line options that were provided at launch time.
launchServerHandler(String, DaemonProperties): Launch a new server handler.
lookupServerHandler(String): Lookup the server handler having the given identifier.
main(String[])
unixStuff(): Do some UNIX specific initialization.
usage()

HANDLERS_P

 protected static final String HANDLERS_P

The property containing the servers to be launched at startup time. This property is a | separated list of server identifiers. Declaring a server to this list requires that either:

An appropriate w3c.jigsaw.daemon.identifier.class is declared and specify the class of the server to be launched (this class should implement the ServerHandler interface.).
An appropriate w3c.jigsaw.daemon.identifier.clones is declared and its value specify an existing server to be cloned in order to create the new server.

See Also:

CLASS_P

 public static final String CLASS_P

The server handler property class suffix.

CLONES_P

 public static final String CLONES_P

The server handler property clones prefix.

SERVER_USER_P

 public static final String SERVER_USER_P

SERVER_GROUP_P

 public static final String SERVER_GROUP_P

manager

 protected static ServerHandlerManager manager

The Application-Wide server manager.

handlers

 protected Hashtable handlers

The list of running server handlers.

props

 protected DaemonProperties props

The server handler manager property list.

commandLine

 protected String commandLine[]

Command line options that were provided at launch time.

error

 protected void error(String msg)

Emit a non-fatal error.

Parameters:: msg - The message to emit.

fatal

 protected void fatal(String msg)

Emit a fatal error. This will abort the whole process !

Parameters:: msg - The fata error message.

getCommandLine

 public String[] getCommandLine()

Get the command line options that were provided at launch time.

Returns:: A String array instance.

launchServerHandler

 protected void launchServerHandler(String id,
                                    DaemonProperties props)

Launch a new server handler. This method tries to launch a new server handler. If launching succeeds, it returns happily, otherwise, it emits an error message to the standard error stream.

Parameters:: identifier - The identifier of the server handler to be launched.; props - The properties from which the server handler should initialize itself.

lookupServerHandler

 public ServerHandler.  lookupServerHandler(String id)

Lookup the server handler having the given identifier.

Parameters:: id - The identifier of the server handler to look for.
Returns:: A ServerHandler instance, or null if undefined.

enumerateServerHandlers

 public Enumeration enumerateServerHandlers()

Enumerate all the server handler manager's identifiers.

Returns:: An enumeration of String.

unixStuff

 public void unixStuff()

Do some UNIX specific initialization. THis method exists straight if it cannot succeed !

usage

 public static void usage()

main

 public static void main(String args[])

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