Unable to Uncompress the files

[reamon]

Glad you got the imports part figured out.

I do not know if the PSUtilities unzip service works for GZip.

[Asoka]

Hi
I’m working on a service where I receive a doc file and have to rename it to a zip and then unzip to continue with the process.

My problem is

I could unzip a zip file successfully, but when I rename a doc to zip and try to unzip I get an error called “over subscribed dynamic bits length tree”

If you have any information to resolve this issue, please let me know

Thanks in advance
Ashok

[reamon]

A Google search for “[FONT=Arial]oversubscribed dynamic bits length tree” turns up some hits including [URL=“http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4188883”]http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4188883[/URL].[/font]

What JVM version are you using?

[Asoka]

I’m using 142 version

[reamon]

How is the file being received? If via FTP, is binary transfer mode being used?

[Asoka]

There was a problem with the rename code, when it renames a doc to zip file, the file in zip gets corrupted. so i changed the code of rename file from doc to zip and it’s working fine

so i came to know that, the error “over subscribed dynamic bits length tree”
also occurs when the file is corrupted

Thanks
Ashok

[Syed1 (Syed *)]

@muru

Hi Rob,

I using your updated Unzip Service to Unzip the files. I found out one problem with that. When it tries to unzip the file the result file is created with only some 256 characters after that everything is filled with spaces. But the file size of both original file which is got zipped and the extracted file which has spaces are same. I dont know how to fix this problem. I am posting that code here.

String zipFilename = “”;
ZipFile zf = null;

// pipeline
IDataHashCursor pipelineCursor = pipeline.getHashCursor();
if ( pipelineCursor.first( “zipFilename” ) )
{
zipFilename = (String) pipelineCursor.getValue();
}
pipelineCursor.destroy();

Vector entryVector = new Vector();

try
{
zf = new ZipFile(zipFilename);

java.util.Enumeration entries = zf.entries();

ZipEntry ze;
while(entries.hasMoreElements())
{
ze = (ZipEntry)entries.nextElement();
byte b = null;

if(!ze.isDirectory())
{
long entrySize = ze.getSize();
int count;
if(entrySize > Integer.MAX_VALUE)
throw new ServiceException(ze.getName() + " expands to " + ze.getSize() + " and is too large for this service.");
b = new byte[(int)entrySize];
InputStream is = zf.getInputStream(ze);
is.read(b, 0, b.length);

}
IData entry = IDataFactory.create();
IDataHashCursor entryCursor = entry.getHashCursor();
entryCursor.last();
entryCursor.insertAfter(“fileName”, ze.getName());
entryCursor.last();
entryCursor.insertAfter(“isDirectory”, (new Boolean(ze.isDirectory())).toString());
entryCursor.last();
entryCursor.insertAfter(“outputBytes”, b);
entryCursor.destroy();
entryVector.add(entry);
}

}
catch (java.io.IOException ioe)
{
throw new ServiceException("IOException: " + ioe.getMessage());
}
finally
{
if(zf != null)
{
try
{
zf.close();

}
catch (IOException ioe)
{
// Ignore any exceptions from above close
}
zf = null;
}
}

// pipeline
IDataHashCursor pipelineCursor_1 = pipeline.getHashCursor();
pipelineCursor_1.last();
pipelineCursor_1.insertAfter( “entries”, entryVector.toArray());
pipelineCursor_1.destroy();

Thanks,
Muru.

[Syed1 (Syed *)]

HI ROB,

can u plz tel me wat r the inputs and ouptputs of ur unzipping code that u provided.

Thanks,
Syed