uk.ac.rdg.resc.jstyx.gridservice.client
Class CachedStreamReader

java.lang.Object
  uk.ac.rdg.resc.jstyx.gridservice.server.GeneralCachingStreamReader
      uk.ac.rdg.resc.jstyx.gridservice.client.CachedStreamReader

public class CachedStreamReader
extends GeneralCachingStreamReader

Reads a CStyxFileInputStream and caches the results locally, allowing multiple windows to be opened on the same data feed whilst saving network traffic

Author:

Jon Blower $Revision: 377 $ $Date: 2005-08-31 18:03:19 +0100 (Wed, 31 Aug 2005) $ $Log$ Revision 1.4 2005/08/31 17:03:19 jonblower Renamed "StyxFile*putStream*" to "CStyxFile*putStream*" for consistency with CStyxFile class Revision 1.3 2005/06/07 16:44:45 jonblower Fixed problem with caching stream reader on client side Revision 1.2 2005/05/27 21:22:39 jonblower Further development of caching stream readers Revision 1.1 2005/05/27 17:02:59 jonblower Initial import

Nested Class Summary

Nested classes/interfaces inherited from class uk.ac.rdg.resc.jstyx.gridservice.server.GeneralCachingStreamReader

GeneralCachingStreamReader.DataRequest

Constructor Summary

CachedStreamReader(CStyxFile stream)

Method Summary

void	error(GeneralCachingStreamReader.DataRequest originalRequest, java.lang.Exception e)
java.lang.String	getName()
void	newData(GeneralCachingStreamReader.DataRequest originalRequest, byte[] data, int offset, int count)
void	read(StreamViewer viewer, long offset, int count)
void	start() Starts reading from the stream.

Methods inherited from class uk.ac.rdg.resc.jstyx.gridservice.server.GeneralCachingStreamReader

delete, getCacheFile, getCacheLength, isEOF, read, setCacheFile, startReading

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedStreamReader

public CachedStreamReader(CStyxFile stream)
                   throws java.io.IOException

Throws:

java.io.IOException

Method Detail

start

public void start()
           throws java.io.IOException

Starts reading from the stream. Does nothing if already started.

Throws:

java.io.IOException

read

public void read(StreamViewer viewer,
                 long offset,
                 int count)

newData

public void newData(GeneralCachingStreamReader.DataRequest originalRequest,
                    byte[] data,
                    int offset,
                    int count)

Specified by:

newData in class GeneralCachingStreamReader

error

public void error(GeneralCachingStreamReader.DataRequest originalRequest,
                  java.lang.Exception e)

Specified by:

error in class GeneralCachingStreamReader

getName

public java.lang.String getName()