activemq-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From jhakim <>
Subject Re: Creating message from byte[]
Date Wed, 25 Nov 2009 17:12:59 GMT

Thanks Tim. We are using ICSharpCode
( for end-to-end
compression between C#/Java clients using TIBCO EMS. 

In any case, does the native ActiveMQ compression provide end-to-end
compression between C#/Java clients? If not, how do we get C#/Java clients
to exchange compressed messages?

Timothy Bish wrote:
> On Tue, 2009-11-24 at 07:55 -0800, jhakim wrote:
>> I would like to create a large (40+ MB) MapMessage, get its byte[],
>> compress
>> the bytes, and send it across the wire as a BytesMessage. On the
>> receiving
>> side, I would like to read the byte[], uncompress, and create the
>> original
>> MapMessage from the byte[].
>> We have been using this strategy with great success using TIBCO EMS. We
>> have
>> a mix of clients - Java and C#.
>> As we look at ActiveMQ as an alternative to TIBCO EMS, I am wondering if
>> there is an API that would let us implement the same strategy.
>> Specifically,
>> is there an API to get the byte[] from a MapMessage and to create a
>> MapMessage from a byte[]?
>> Thanks in advance.
> There's not a direct way of doing this via the NMS API but there are
> some tricks that can allow you to get the byte[] from a MapMessage if
> you really wanted to.  There is another option that might be better that
> will be available in the NMS.AcitveMQ 1.2.0 release.  You can now set a
> property on the Connection instance to enable compression and provide a
> CompressionPolicy instance that defines the compression method used to
> compress and decompress the body of a Message.  By default NMS.ActiveMQ
> just uses the GZipStream built into .NET but if you want to actually
> trade messages between Java and .NET then you'd need to use something
> like the DotNetZip library which provides a ZlibStream class that can
> compress and decompress in a format that's compatible with the Java
> client's own compression format.
> Regards
> Tim.
> -- 
> Tim Bish

View this message in context:
Sent from the ActiveMQ - User mailing list archive at

View raw message