org.atmosphere.gwt.server.impl
Class GwtResponseWriterImpl

java.lang.Object
  org.atmosphere.gwt.server.impl.GwtResponseWriterImpl

All Implemented Interfaces:

GwtResponseWriter

Direct Known Subclasses:

ManagedStreamResponseWriter, OperaEventSourceResponseWriter, WebsocketResponseWriter

public abstract class GwtResponseWriterImpl
extends Object
implements GwtResponseWriter

Author:

p.havelaar

Field Summary

protected int	connectionID
protected org.slf4j.Logger	logger
protected GwtAtmosphereResourceImpl	resource
protected boolean	shouldEscapeText
protected Writer	writer

Constructor Summary

protected

GwtResponseWriterImpl(GwtAtmosphereResourceImpl resource)

Method Summary

protected abstract void	doHeartbeat()
protected abstract void	doSendError(int statusCode, String message)
protected abstract void	doSuspend()
protected abstract void	doTerminate()
protected abstract void	doWrite(List<? extends Serializable> messages)
protected void	escapeText(boolean escape)
protected JSONSerializer	getJsonSerializer()
long	getLastWriteTime() Returns the last time a write has been performed
protected OutputStream	getOutputStream(OutputStream outputStream)
javax.servlet.http.HttpServletRequest	getRequest()
javax.servlet.http.HttpServletResponse	getResponse()
protected SerialMode	getSerializationMode()
protected boolean	hasSession()
void	heartbeat() Write a heartbeat message to the associated HTTP response.
void	initiate()
boolean	isTerminated() Test if this Comet response has been terminated by calling the GwtResponseWriter.terminate() method or terminated from the HTTP client disconnecting.
void	sendError(int statusCode) Send an error before the response is sent.
void	sendError(int statusCode, String message) Send an error before the response is sent.
protected String	serialize(Object message)
protected boolean	shouldEscapeText()
protected boolean	supportsDeflate()
void	suspend()
void	terminate() Write a terminate message to the associated HTTP response and close the HTTP output stream/
void	write(List<? extends Serializable> messages) Write a list of message to the associated HTTP response.
void	write(List<? extends Serializable> messages, boolean flush) Write a list of message to the associated HTTP response.
void	write(Serializable message) Write a single message to the associated HTTP response.
void	write(Serializable message, boolean flush) Write a single message to the associated HTTP response.

Methods inherited from class java.lang.Object

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

Field Detail

writer

protected Writer writer

resource

protected final GwtAtmosphereResourceImpl resource

connectionID

protected final int connectionID

logger

protected final org.slf4j.Logger logger

shouldEscapeText

protected boolean shouldEscapeText

Constructor Detail

GwtResponseWriterImpl

protected GwtResponseWriterImpl(GwtAtmosphereResourceImpl resource)

Method Detail

isTerminated

public boolean isTerminated()

Description copied from interface: GwtResponseWriter

Test if this Comet response has been terminated by calling the GwtResponseWriter.terminate() method or terminated from the HTTP client disconnecting.

Specified by:

isTerminated in interface GwtResponseWriter

Returns:

if this Comet response has been terminated

getSerializationMode

protected SerialMode getSerializationMode()

getRequest

public javax.servlet.http.HttpServletRequest getRequest()

getResponse

public javax.servlet.http.HttpServletResponse getResponse()

sendError

public void sendError(int statusCode)
               throws IOException

Description copied from interface: GwtResponseWriter

Send an error before the response is sent.

Specified by:

sendError in interface GwtResponseWriter

Throws:

IOException

sendError

public void sendError(int statusCode,
                      String message)
               throws IOException

Description copied from interface: GwtResponseWriter

Send an error before the response is sent.

Specified by:

sendError in interface GwtResponseWriter

Throws:

IOException

getOutputStream

protected OutputStream getOutputStream(OutputStream outputStream)

initiate

public void initiate()
              throws IOException

Throws:

IOException

suspend

public void suspend()
             throws IOException

Throws:

IOException

terminate

public void terminate()
               throws IOException

Description copied from interface: GwtResponseWriter

Write a terminate message to the associated HTTP response and close the HTTP output stream/

Specified by:

terminate in interface GwtResponseWriter

Throws:

IOException

write

public void write(Serializable message)
           throws IOException,
                  SerializationException

Description copied from interface: GwtResponseWriter

Write a single message to the associated HTTP response.

Specified by:

write in interface GwtResponseWriter

Throws:

IOException

SerializationException

write

public void write(Serializable message,
                  boolean flush)
           throws IOException,
                  SerializationException

Description copied from interface: GwtResponseWriter

Write a single message to the associated HTTP response. Flush the HTTP output stream if flush is true.

Specified by:

write in interface GwtResponseWriter

Throws:

IOException

SerializationException

write

public void write(List<? extends Serializable> messages)
           throws IOException,
                  SerializationException

Description copied from interface: GwtResponseWriter

Write a list of message to the associated HTTP response. This method may be more optimal to the single message version.

Specified by:

write in interface GwtResponseWriter

Throws:

IOException

SerializationException

write

public void write(List<? extends Serializable> messages,
                  boolean flush)
           throws IOException,
                  SerializationException

Description copied from interface: GwtResponseWriter

Write a list of message to the associated HTTP response. This method may be more optimal to the single message version. Flush the HTTP output stream if flush is true.

Specified by:

write in interface GwtResponseWriter

Throws:

IOException

SerializationException

heartbeat

public void heartbeat()
               throws IOException

Description copied from interface: GwtResponseWriter

Write a heartbeat message to the associated HTTP response.

Specified by:

heartbeat in interface GwtResponseWriter

Throws:

IOException

getLastWriteTime

public long getLastWriteTime()

Description copied from interface: GwtResponseWriter

Returns the last time a write has been performed

Specified by:

getLastWriteTime in interface GwtResponseWriter

Returns:

doSendError

protected abstract void doSendError(int statusCode,
                                    String message)
                             throws IOException

Throws:

IOException

doSuspend

protected abstract void doSuspend()
                           throws IOException

Throws:

IOException

doWrite

protected abstract void doWrite(List<? extends Serializable> messages)
                         throws IOException,
                                SerializationException

Throws:

IOException

SerializationException

doHeartbeat

protected abstract void doHeartbeat()
                             throws IOException

Throws:

IOException

doTerminate

protected abstract void doTerminate()
                             throws IOException

Throws:

IOException

shouldEscapeText

protected boolean shouldEscapeText()

escapeText

protected void escapeText(boolean escape)

supportsDeflate

protected boolean supportsDeflate()

hasSession

protected boolean hasSession()

serialize

protected String serialize(Object message)
                    throws SerializationException

Throws:

SerializationException

getJsonSerializer

protected JSONSerializer getJsonSerializer()