users@grizzly.java.net

Re: who can help me?how a server base grizzly receive 2MB data from client

From: windshome <lixiangfeng_at_infosec.com.cn>
Date: Fri, 1 Feb 2008 02:59:25 -0800 (PST)

My problem is when my client send a large request, must I store this data
slience to my context?


Peter Murray-7 wrote:
>
> I was going to say my but I am glad I did not since my assumptions
> were wrong now that I see
> all the experts have answered.
>
> Is your client a Java POJO? Would you mind sharing it?
>
> I have yet to make any real progress on getting a POJO client to talk
> to the Server side.
> ( Currently I only get time on the train to work on it :( )
>
> I do not know if it matters for your problem, but I do not see any
> flush in your code.
> Does Comet do this automatically? The other examples seem to
> explicitly call it.
>
>
> Peter
>
>
> On Jan 29, 2008, at 10:41 PM, windshome wrote:
>
>>
>> I write a server base grizzly,I write a client which send data to
>> server and
>> receive response from server. I send 50 bytes data and 2k data to
>> server
>> ok,but when I send 20K and 2MB data,server no response.
>> I view the code of grizzly,find the ByteBuffer of a workthread
>> capity is
>> 8192,then I modify it to 81920,then 20k data can receive by server.
>>
>> If my Server set the init size of ByteBuffer is 81920,I think it
>> would use
>> to much memory,who can tell me some method,will dynamic just the
>> buffer,can
>> receive some bytes data ,or some MB data?
>>
>>
>>
>> My Server's protocol parser code :
>>
>>
>> final ProtocolFilter parserProtocolFilter = new
>> ParserProtocolFilter() {
>> public ProtocolParser newProtocolParser() {
>> return new ProtocolParser() {
>> private boolean isExpectingMoreData = false;
>> private ByteBuffer byteBuffer;
>> private Request message;
>>
>> public boolean hasMoreBytesToParse() {
>> return false;
>> }
>>
>> public boolean isExpectingMoreData() {
>> return isExpectingMoreData;
>> }
>>
>> public Object getNextMessage() {
>> return message;
>> }
>>
>> public boolean hasNextMessage() {
>>
>>
>> ByteBuffer dup = byteBuffer.duplicate();
>> System.out.println( "byteBuffer.position2()=" +
>> byteBuffer.position() );
>> if (byteBuffer.position() == 0){
>> System.out.println("byteBuffer.position()
>> ==
>> 0");
>> isExpectingMoreData = true;
>> return false;
>> }
>> dup.flip();
>>
>>
>> if( dup.remaining()< 4 ){
>> isExpectingMoreData = true;
>> return false;
>> }
>>
>> byte[] bs = new byte[4];
>> dup.get(bs);
>> int len= (bs[0] << 24) + (bs[1] << 16) +
>> (bs[2] <<
>> 8) + (bs[3] << 0);
>>
>> if( dup.remaining() < len ){
>> isExpectingMoreData = true;
>> return false;
>> }
>> byte[] data = new byte[len];
>> dup.get( data );
>>
>> try {
>> message = new ByteRequest(data);
>> } catch (Exception e) {
>> e.printStackTrace();
>> message=null;
>> return false;
>> }
>> return true;
>>
>> }
>>
>> public void startBuffer(ByteBuffer bb) {
>> byteBuffer = bb;
>> }
>>
>> public boolean releaseBuffer() {
>> byteBuffer = null;
>> message = null;
>> return false;
>> }
>>
>> };
>> }
>> };
>>
>>
>>
>>
>>
>>
>>
>> --
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>> Sent from the Grizzly - Users mailing list archive at Nabble.com.
>>
>>
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>
> Peter Murray
> Manager,
> Relationship Trading
>
> peter.murray_at_fxall.com
> Office: +1 646-268-9916
> Cell : +1 914-414-3727
> AIM : retepmurray
>
>
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>

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