Hi Oleg, Mike,
Thanks a lot for your reponse. I think I got the basic idea about your suggestion, but
more questions :-)
1. I'm actually using putmethod, not postmethod, but I assume your suggest applies to
putmethod too, is it correct?
2. Since my "put" will put (upload) a local file onto server, so I think
ProgressInputStream will take a FileInputStream as parameter in its constructor, is it
right?
3. The callListeners in ProgressInputStream has following line:
this.listeners.callListeners( new ProgressEvent( this, this.current,
this.total ) );
did you mean:
this.listeners.invokeListeners?
Thanks,
Yong Chen
-----Original Message-----
From: Kalnichevski, Oleg [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 11, 2003 12:46 AM
To: Commons HttpClient Project
Subject: RE: file upload (PUT method) progress report
Yong,
You should be using PostMethod.setRequestBody(InputStream) method to provide the
request content body (as Mike pointed out) and wrap the source InputStream with a
FilterInputStream. Exactly what you choose to do in the FilterInputStream is up to
you. One possibility is to file events containing progress details. Here's a code
snippet that should give you a pointer in that direction. Hope this helps
Oleg
==============================================================================
import java.util.EventObject;
public class ProgressEvent extends EventObject {
private int current;
private int total;
public ProgressEvent( Object source, int current, int total ) {
super( source );
this.current = current;
this.total = total;
}
public int getCurrent()
{
return this.current;
}
public int getTotal()
{
return this.total;
}
}
==============================================================================
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import xxx.ProgressEvent;
import xxx.ProgressListenerList;
public class ProgressInputStream extends FilterInputStream
{
private ProgressListenerList listeners = null;
private int current;
private int total;
public ProgressInputStream( InputStream in, ProgressListenerList listeners,
int total )
{
super( in );
this.listeners = listeners;
this.current = 0;
this.total = total;
}
public int read(byte[] b, int off, int len) throws IOException
{
int result = super.read(b, off, len);
if ( result != -1 )
{
this.current += result;
callListeners();
}
return result;
}
public int read(byte[] b) throws IOException
{
int result = super.read(b);
if ( result != -1 )
{
this.current += result;
callListeners();
}
return result;
}
private void callListeners()
{
if ( this.listeners != null )
{
this.listeners.callListeners( new ProgressEvent( this, this.current,
this.total ) );
}
}
}
==============================================================================
import java.util.EventListener;
public interface ProgressListener extends EventListener
{
public void progressNotification( ProgressEvent event );
}
==============================================================================
import java.util.Vector;
public class ProgressListenerList {
// I have to use Vector here because of Java 1.1.8 compatibiliy requirements
private Vector v = null;
public ProgressListenerList()
{
super();
}
public synchronized void addListner( ProgressListener listnener )
{
if ( listnener == null )
{
return;
}
if ( this.v == null )
{
this.v = new Vector( 1 );
}
int i = this.v.indexOf( listnener );
if ( i == -1 )
{
this.v.addElement( listnener );
}
}
public synchronized void removeListner( ProgressListener listnener )
{
if ( listnener == null )
{
return;
}
if ( this.v == null )
{
return;
}
int i = this.v.indexOf( listnener );
if ( i != -1 )
{
this.v.removeElementAt( i );
}
if ( this.v.size() == 0 )
{
this.v = null;
}
}
public synchronized void clear()
{
if ( this.v != null )
{
this.v.removeAllElements();
this.v = null;
}
}
public synchronized void invokeListeners( ProgressEvent event )
{
if ( this.v == null )
{
return;
}
for ( int i = 0; i < this.v.size(); i++ )
{
( ( ProgressListener )this.v.elementAt( i ) ).progressNotification( event
);
}
}
public synchronized int size()
{
if ( this.v == null )
{
return 0;
}
else
{
return this.v.size();
}
}
}
==============================================================================
-----Original Message-----
From: Yong Chen [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 11, 2003 01:03
To: [EMAIL PROTECTED]
Subject: file upload (PUT method) progress report
Hi,
I'm using putmethod to put (large size) file on server. After calling executeMethod(),
I want to know the progress or the percentage of file uploaded so I can report it to
UI.
1. Is there any to do it now?
2. If not, are there any plans for adding it to the future release?
Thanks,
Yong Chen
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