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From 邱承 (JIRA) <j...@apache.org>
Subject [jira] [Created] (AMQCPP-371) bytesmessages's size doubled If Message body compression enabled
Date Thu, 05 May 2011 03:36:03 GMT
bytesmessages's size  doubled If Message body compression enabled
-----------------------------------------------------------------

                 Key: AMQCPP-371
                 URL: https://issues.apache.org/jira/browse/AMQCPP-371
             Project: ActiveMQ C++ Client
          Issue Type: Bug
          Components: CMS Impl
    Affects Versions: 3.3.0, 3.0
         Environment: windows 3.4.0
            Reporter: 邱承
            Assignee: Timothy Bish


If the URI option connection.useCompression=true, an ActiveMQBytesMessage's size will always
become doubled. I changed the ActiveMQByteMessage.cpp as follow, the problem seems been solved.

class ByteCounterOutputStream : public FilterOutputStream {
private:

int* length;

private:

ByteCounterOutputStream( const ByteCounterOutputStream& );
ByteCounterOutputStream operator= ( const ByteCounterOutputStream& );

public:

ByteCounterOutputStream( int* length, OutputStream* stream, bool own = false )
: FilterOutputStream( stream, own ), length( length ) {
}

virtual ~ByteCounterOutputStream() {}

protected:

virtual void doWriteByte( unsigned char value ) {
(*length)++;
FilterOutputStream::doWriteByte( value );
}

virtual void doWriteArray( const unsigned char* buffer, int size ) {

//(*length) += size; removed because of length has been double sized
FilterOutputStream::doWriteArray( buffer, size );
}

virtual void doWriteArrayBounded( const unsigned char* buffer, int size, int offset, int length
) {

//(*this->length) += length; removed because of length has been double sized
FilterOutputStream::doWriteArrayBounded( buffer, size, offset, length );
}

};

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