RE: Out of Memory

[Astie, Sebastien]

I had a similar problem and I solved the problem by modifying org.apache.axis.Message 
and org.apache.axis.SoapPart

I hope it will solve your problem.


What I have done is :

modify the method writeTo in SoapPart :

 /**
     * Write the contents to the specified writer.
     */
    public void writeTo(Writer writer) throws IOException {

        if ( currentForm == FORM_FAULT ) {
            AxisFault env = (AxisFault)currentMessage;
            try {
                env.output(new SerializationContextImpl(writer, 
getMessage().getMessageContext()));
            } catch (Exception e) {
                log.error(Messages.getMessage("exception00"), e);
                throw env;
            }
            return;
        } else if ( currentForm == FORM_SOAPENVELOPE ) {


            SOAPEnvelope env = (SOAPEnvelope)currentMessage;
            try {
                env.output(new SerializationContextImpl(writer, 
getMessage().getMessageContext()));
            } catch (Exception e) {
                throw AxisFault.makeFault(e);
            }
            return;
        } else {
            writer.write(this.getAsString());
        }


then in Message :

add a constant :

    /**
     * This is the buffer size used to output xml contents.
     */
    public static int DEFAULT_OUTPUT_BUFF_SIZE = 1000000;


modify method getContentType 

public String getContentType(SOAPConstants sc) throws AxisFault {

        int sendType = Attachments.SEND_TYPE_NOTSET;
        if ((msgContext != null) && (msgContext.getService() != null)) {
            sendType = msgContext.getService().getSendType();
        }

        /*
            if (sendType != Attachments.SEND_TYPE_NONE) {
            //Force serialization if it hasn't happend it.
            //Rick Rineholt fix this later.
            mSOAPPart.getAsBytes();
        } */

        String ret = sc.getContentType();
        if (mAttachments != null && 0 != mAttachments.getAttachmentCount()) {
            ret = mAttachments.getContentType();
        }
        return ret;
    }



modify method writeTo:

public void writeTo(java.io.OutputStream os) throws SOAPException, IOException {
         //Do it the old fashion way.
        if (mAttachments == null || 0 == mAttachments.getAttachmentCount()) {
            try {
                Writer writer = new OutputStreamWriter(os,"UTF-8");
                // writer = new BufferedWriter(writer);
                writer = new BufferedWriter(writer, DEFAULT_OUTPUT_BUFF_SIZE);
                mSOAPPart.writeTo(writer);
                writer.flush();
            } catch (java.io.IOException e) {
                log.error(Messages.getMessage("javaIOException00"), e);
            }
        } else {
            try {
                mAttachments.writeContentToStream(os);
            } catch (java.lang.Exception e) {
                log.error(Messages.getMessage("exception00"), e);
            }
        }
    }



-----Original Message-----
From: Ekbote, Niranjan [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 28, 2003 10:17 AM
To: '[EMAIL PROTECTED]'
Subject: RE: Out of Memory


I am not sure if Axis supports streaming. I think that could solve your
problem. 

Thanks! 

-- Niranjan. 


-----Original Message-----
From: Benedick Mark Chan [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 28, 2003 1:08 PM
To: [EMAIL PROTECTED]
Subject: Re: Out of Memory


Hello David,

Thanks for your reply.

I have tried increasing my heap  size dramatically, but still it doesn't
work.

Is this a limitation of axis? If so, then I guess chopping to several small
chucks will be my last resort. =(

Thanks.

-Benedick

----- Original Message -----
From: "David You" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, August 29, 2003 1:03 AM
Subject: RE: Out of Memory


> 1. Are you sure WS is good solution for you?
> 2. If you are sure, try to config VM with more heap size.
> 3. still doesn't work? Try to chop it in several small chunk.
>
> David
>
> -----Original Message-----
> From: Benedick Mark Chan [mailto:[EMAIL PROTECTED]
> Sent: Thursday, August 28, 2003 9:48 AM
> To: [EMAIL PROTECTED]
> Subject: Out of Memory
>
>
> Hello guys,
>
> I would like to ask a question with regards to the memory usage of axis...
>
> I have tried populating 6 million strings to a vector, and return the
vector
> to the client. The server has successfully populated the vector with 6
> million
> strings, but when the server send the vector to the client, the server
> throws an
> out of memory exception. Is there any way to solve this problem? Please
help
> me.
>
> Thanks.
>
> Sincerely Yours,
>
> Benedick
>