On Sat, Oct 3, 2009 at 12:29 AM, Vladimir Okhotnikov <[email protected]> wrote: > > Hi > > first of all, thanks for the great framework. The learning curve is a bit, > steep, but the possibilities are surely worth it. > > Apparently I have a small problem with a ZIP data format. In my project, I > have to download zipped files from FTP, uncompress and process them. So, I > guess the route should be like: > from("ftp://...";).unmarshal().zip().to(...) > While writing a test for that particular route, I've created a small test > zip file and tried to process it - with no luck - all I got was the > ZipException "unknown compression method" > > I also tried feeding the actual zip file from the FTP, with the same result. > > Eventually I looked at the code, and found that zip data format processing > is being done by org.apache.camel.impl.ZipDataFormat class. What's strange > is that the class uses java.zip.InflaterOutputStream (and its > DeflaterOutputStream counterpart). Now, by no means I'm an expert in > compression methods, but the java API docs claims that those classes use > "deflate" method, not "zip". For "zip" method I think ZipInputStream must be > used instead? >
Yeah the person who submitted this data format wrote it in that way and it was branded zip from the start. Its meant for e.g. text/xml payloads to be compressed / decompressed for example over http. You are welcome to take a look if you can enhance it and offer an option to select which "mode" to use. BTW: We had a though of adding Commons VFS for zip file handling. But the person who started the work on it never really took off. > As a side note, can anyone give me an advice whether it is possible to add a > custom data format without modifying/recompiling camel code? > > Regards, > Vladimir Okhotnikov > -- > View this message in context: > http://www.nabble.com/Zip-format-problem-tp25723682p25723682.html > Sent from the Camel - Users mailing list archive at Nabble.com. > > -- Claus Ibsen Apache Camel Committer Open Source Integration: http://fusesource.com Blog: http://davsclaus.blogspot.com/ Twitter: http://twitter.com/davsclaus
