wjhk.jupload2.context

Class JavascriptHandler

java.lang.Object

java.lang.Thread

wjhk.jupload2.context.JavascriptHandler

All Implemented Interfaces:

Runnable

public class JavascriptHandler
extends Thread

Separate thread spawned by the (signed) applet at initialization time so it will run in a context with the same privileges. Does nothing but wait to be notified of the presence of a command to be executed in the jsCommand String variable.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
static String	COMMAND_START_UPLOAD Command code, for upload.
static String	RETURN_BUSY One return code for doCommand: indicates that the thread is busy, and can execute this command.
static String	RETURN_STARTED One return code for doCommand: indicates that the thread is busy, and can execute this command.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
JavascriptHandler(UploadPolicy uploadPolicy, JUploadPanel theJUploadPanel) Constructor for JavascriptHandler

Method Summary

Modifier and Type	Method and Description
void	clearCommand() Synchronized method allows for safely clearing jsCommand string
String	doCommand(String command) Method for passing a command (String) to be executed (asynchronously) by the run() method of this object's thread.
void	doWait() Synchronized method to enable call to wait()
void	run() Method to run when thread is started.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

COMMAND_START_UPLOAD

public static final String COMMAND_START_UPLOAD

Command code, for upload.

See Also:

Constant Field Values

RETURN_BUSY

public static final String RETURN_BUSY

One return code for doCommand: indicates that the thread is busy, and can execute this command.

See Also:

Constant Field Values

RETURN_STARTED

public static final String RETURN_STARTED

One return code for doCommand: indicates that the thread is busy, and can execute this command.

See Also:

Constant Field Values

Constructor Detail

JavascriptHandler

public JavascriptHandler(UploadPolicy uploadPolicy,
                         JUploadPanel theJUploadPanel)

Constructor for JavascriptHandler

Parameters:

uploadPolicy - The current upload policy. Used for debug output.

theJUploadPanel - Whose methods will will be invoked in order to execute the received commands

Method Detail

doCommand

public String doCommand(String command)

Method for passing a command (String) to be executed (asynchronously) by the run() method of this object's thread. Commands are accepted only if there is no previous command still executing. (Commands are not queued.) Return value indicates if command was successfully submitted.

Parameters:

command -

Returns:

the command string argument on success, empty string on failure.

clearCommand

public void clearCommand()

Synchronized method allows for safely clearing jsCommand string

doWait

public void doWait()
            throws InterruptedException

Synchronized method to enable call to wait()

Throws:

InterruptedException

run

public void run()

Method to run when thread is started.

Specified by:

run in interface Runnable

Overrides:

run in class Thread