ix.applet
Class AppletCommunicationStrategy

java.lang.Object
  ix.applet.AppletCommunicationStrategy

All Implemented Interfaces:

IPC.CommunicationStrategy

public class AppletCommunicationStrategy
extends java.lang.Object
implements IPC.CommunicationStrategy

Lets I-P2 applets talk with each other. It can also be used with non-applet instances of Ip2 if they specify a "base-url" parameter.

See Also:

Parameters

Nested Class Summary

(package private) static class	AppletCommunicationStrategy.ConnectFailure
(package private) class	AppletCommunicationStrategy.ReceiveThread

Field Summary

(package private) boolean	ableToSend
(package private) Ip2	agent
(package private) java.net.URL	docBase
(package private) int	expectedSeqNo
(package private) IPC.MessageListener	messageListener
(package private) MessageMemory	messageMap
(package private) AppletCommunicationTool	tool

Constructor Summary

AppletCommunicationStrategy()

Method Summary

void	appletDestroy()
void	appletStart()
void	appletStop()
protected java.lang.Object	decodeReply(java.lang.String text)
protected void	do_transcript(java.lang.String line)
protected java.lang.String	encodeForSend(AppletMessage m)
(package private) java.lang.String	getAgentName()
(package private) java.net.URL	getDocumentBase()
(package private) java.lang.RuntimeException	interpretRelayException(java.lang.String text)
(package private) java.lang.RuntimeException	interpretServerException(java.lang.String text)
(package private) boolean	isAbleToSend()
protected java.io.InputStreamReader	makeReader(java.net.URLConnection conn)
(package private) void	registerAs(java.lang.String name)
protected java.lang.Object	requestObject(AppletMessage m) Sends a request to the message server and returns the server's reply.
void	sendObject(java.lang.Object destination, java.lang.Object contents)
protected java.lang.String	sendText(java.lang.String text)
(package private) void	serverUnavailable()
(package private) void	setIsAbleToSend(boolean v)
(package private) void	setTool(AppletCommunicationTool tool)
void	setupServer(java.lang.Object destination, IPC.MessageListener listener)
protected void	transcript(java.lang.String line)

Methods inherited from class java.lang.Object

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

Field Detail

tool

AppletCommunicationTool tool

agent

Ip2 agent

docBase

java.net.URL docBase

messageListener

IPC.MessageListener messageListener

ableToSend

boolean ableToSend

expectedSeqNo

volatile int expectedSeqNo

messageMap

MessageMemory messageMap

Constructor Detail

AppletCommunicationStrategy

public AppletCommunicationStrategy()

Method Detail

setTool

void setTool(AppletCommunicationTool tool)

getAgentName

java.lang.String getAgentName()

isAbleToSend

boolean isAbleToSend()

setIsAbleToSend

void setIsAbleToSend(boolean v)

getDocumentBase

java.net.URL getDocumentBase()

appletStart

public void appletStart()

appletStop

public void appletStop()

appletDestroy

public void appletDestroy()

setupServer

public void setupServer(java.lang.Object destination,
                        IPC.MessageListener listener)

Specified by:

setupServer in interface IPC.CommunicationStrategy

registerAs

void registerAs(java.lang.String name)

serverUnavailable

void serverUnavailable()

transcript

protected void transcript(java.lang.String line)

do_transcript

protected void do_transcript(java.lang.String line)

sendObject

public void sendObject(java.lang.Object destination,
                       java.lang.Object contents)

Specified by:

sendObject in interface IPC.CommunicationStrategy

requestObject

protected java.lang.Object requestObject(AppletMessage m)

Sends a request to the message server and returns the server's reply. A string reply that reports an exception is turned into an appropriate exception and then thrown, rather than being returned.

interpretServerException

java.lang.RuntimeException interpretServerException(java.lang.String text)

interpretRelayException

java.lang.RuntimeException interpretRelayException(java.lang.String text)

encodeForSend

protected java.lang.String encodeForSend(AppletMessage m)

decodeReply

protected java.lang.Object decodeReply(java.lang.String text)

sendText

protected java.lang.String sendText(java.lang.String text)
                             throws java.net.MalformedURLException,
                                    java.io.IOException

Throws:

java.net.MalformedURLException

java.io.IOException

makeReader

protected java.io.InputStreamReader makeReader(java.net.URLConnection conn)
                                        throws java.io.IOException,
                                               java.io.UnsupportedEncodingException

Throws:

java.io.IOException

java.io.UnsupportedEncodingException