Generate a tar.gz compressed archive in webmethods

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1

Hello

All is in the subject’s title :smiley:
Is there a dedicated service I can use in webMethods ?
or Does one of you know how to do that using flow services ?
or Do I need to create a java service?

Thanks for your help

2

do you mean, you want to create .gz files using wM ?
which wM version you are using ?

3

OOTB there is no service to zip, gzip or tar a file. However you can leverage the Java API and write your own service.

Also have a look at the PSUtilities (which can be downloaded via tech community code samples) as there are services to zip and unzip, you can re-use or re-write them as per your need.

Let us know if you have any further questions.

4

You Can also use shell scripts by using os-command flow service

5

If you are using the service pub.utils:executeOSCommand make sure to update OSCommands.cnf file accordingly. However use pub.utils:executeOSCommand service with extreme caution; the commands can affect the production systems where Integration Server is running.

6

Hello

I finally imported the commons-compress-1.12.jar and created a java service

here is the code I used :

The inputs are inputStream (the document in bytes) and tarFileName (the name of the file IN the tar.gz)
return a bytes array which is the compressed content.

package xxxxx;

import com.wm.data.*;
import com.wm.util.Values;
import com.wm.app.b2b.server.Service;
import com.wm.app.b2b.server.ServiceException;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.zip.GZIPOutputStream;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.io.IOUtils;

public final class Compression_SVC

{

	/** 
	 * The primary method for the Java service
	 *
	 * @param pipeline
	 *            The IData pipeline
	 * @throws ServiceException
	 */
	public static final void Compression(IData pipeline) throws ServiceException {
		   IDataCursor pipelineCursor = pipeline.getCursor();
		   
		   byte[] inputStream = null;
		   if ( pipelineCursor.first ( "inputStream" ) ) {
				inputStream = (byte[])pipelineCursor.getValue();
			} else {
				throw new ServiceException("Missing required parameter 'inputStream'");
			}
		   
		   String tarFileName = (String)IDataUtil.get( pipelineCursor, "tarFileName" );
		
		   
		   // tar.gz file creation 
		   ByteArrayOutputStream bos = new ByteArrayOutputStream();
		   TarArchiveOutputStream taos = new TarArchiveOutputStream(bos);
		   taos.setBigNumberMode(TarArchiveOutputStream.BIGNUMBER_STAR);
		   taos.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
		   
		   try {
			
			 // tar.gz content creation
			   TarArchiveEntry entry = new TarArchiveEntry(tarFileName);
			   entry.setSize(inputStream.length);
			   taos.putArchiveEntry(entry);
			   
			   // put content in the file
			   taos.write(inputStream);
			   
			   // close compressed file
			   taos.closeArchiveEntry();
		

				IDataCursor pipelineCursor_1 = pipeline.getCursor();
				pipelineCursor_1.insertAfter("zippedContent", bos.toByteArray()); 
				pipelineCursor_1.destroy();
		} catch (Exception e) {
			throw new ServiceException(e);
		} finally{
			try {
				taos.finish();
				taos.close();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		   
			
	}
	
	// --- <<IS-BEGIN-SHARED-SOURCE-AREA>> ---
	
	
	
	// --- <<IS-END-SHARED-SOURCE-AREA>> ---

	final static Compression_SVC _instance = new Compression_SVC();

	static Compression_SVC _newInstance() { return new Compression_SVC(); }

	static Compression_SVC _cast(Object o) { return (Compression_SVC)o; }

}
7

Thanks for the sharing the code.

Make sure to put the required jar in the package (code/jars) containing the java service which will ease your code deployment. You can also put the jar in global location which will be available for other packages on IS but I would prefer make it local to the package.