Send SOAP DIME Attachment (please comment on my sample code)

Question

Hi All,
I had hard time trying to find a send SOAP DIME attachment
code for the web service. And here it is, I wrote one,
but I use to easy way to deploy the service.
I just simply change the extension .java to .jws,
so, can you all tell me whether it will be a problem or not ?
And please review my code below, I debugged and no error,
but I am not sure if it is working right.
Basiclly 2 operations:
public String generateID(int artID)
public File detachFile(String filename)
Please comment on this code, I am trying to make it
more robust, so, that I can redo it and post it to share with
everybody.
thanks,
Derek
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Iterator;
import java.io.*;
import java.security.*;
import java.security.NoSuchAlgorithmException;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.xml.soap.AttachmentPart;
import org.apache.axis.AxisFault;
import org.apache.axis.Message;
import org.apache.axis.MessageContext;
import org.apache.axis.attachments.Attachments;
import org.apache.axis.attachments.AttachmentsImpl;
import org.apache.log4j.Logger;
public class AttachmentYPMG
     private static final Logger _logger = Logger.getLogger(AttachmentYPMG.class);
     public AttachmentYPMG()
     public String generateID(int artID)
          String artid = Integer.toString(artID);
          String md5_hash_string = plainStringToMD5(artid);
          return md5_hash_string;
     private String plainStringToMD5(String input) {
            // Some stuff we will use later
            MessageDigest md = null;
            byte[] byteHash = null;
            StringBuffer resultString = new StringBuffer();
            // Bad things can happen here
            try {
              // Choose between MD5 and SHA1
                   md = MessageDigest.getInstance("MD5");
            } catch(NoSuchAlgorithmException e) {
                System.out.println("NoSuchAlgorithmException caught!");
                System.exit( -1);
            // Reset is always good
            md.reset();
            // We really need some conversion here
           md.update(input.getBytes());
            // There goes the hash
            byteHash = md.digest();
           //  Now here comes the best part
            for(int i = 0; i < byteHash.length; i++) {
              resultString.append(Integer.toHexString(0xFF & byteHash));
          // That's it!
          return(resultString.toString());
     public File detachFile(String filename)
          InputStream is = null;
          FileOutputStream os = null;
          File file = null;
          int totalAttachments ;
          try
               //Get all the attachments
               AttachmentPart[] attachments = getMessageAttachments();
               * getMessageAttachments() as provided by Steve Loughran in his mail
               * to axis-user group
               * http://www.mail-archive.com/[email protected]/msg08732.html
               //Put the logic in a loop for totalAttachments for multiple
               // attachments.
               totalAttachments = attachments.length;
               _logger.debug("saveFile(String filename = " + filename + ") - " +
                              "Total Attachments Received Are: "+ totalAttachments);
               //Extract the first attachment. (Since in this case we have only one attachment sent)
               DataHandler dh = attachments[0].getDataHandler();
               //Extract the file name of the first attachment.
               String name = filename;
               _logger.debug("saveFile(String filename = " + filename + ") - File received on server is: " + name);
               //Get the streams to file and from attachment, then stream to disk
               is = dh.getInputStream();
               file = new File(name);
               os = new FileOutputStream(file);
               this.writeBuffersAndClose(is, os);
          } catch (Exception e)
               _logger.error("detachFile(String filename = " + filename + ")", e);
               //throw new AttachmentException(e);
          //if(file!= null)
                    return file;
          //else
               //throw new AttachmentException("The attachment was not saved");
     * extract attachments from the current request
     * @return a list of attachmentparts or an empty array for no attachments
     * support in this axis buid/runtime
     private AttachmentPart[] getMessageAttachments() throws AxisFault
          * Reusing the method implementation for AttachmentPart[]
          * getMessageAttachments() as provided by Steve Loughran in his mail to
          * axis-user group
          * http://www.mail-archive.com/[email protected]/msg08732.html
          MessageContext msgContext = MessageContext.getCurrentContext();
          Message reqMsg = msgContext.getRequestMessage();
          Attachments messageAttachments = reqMsg.getAttachmentsImpl();
          if (null == messageAttachments)
               System.out.println("no attachment support");
               return new AttachmentPart[0];
          int attachmentCount = messageAttachments.getAttachmentCount();
          AttachmentPart attachments[] = new AttachmentPart[attachmentCount];
          Iterator it = messageAttachments.getAttachments().iterator();
          int count = 0;
          while (it.hasNext())
               AttachmentPart part = (AttachmentPart) it.next();
               attachments[count++] = part;
          return attachments;
     * Simple method for writing one stream from another.
     * @param is
     * @param os
     * @throws IOException
     private void writeBuffersAndClose(InputStream is, OutputStream os)
          throws IOException
          int i = 0;
          byte [] buffer = new byte[1024];
          while (i != -1)
               i = is.read(buffer, 0, buffer.length);
               if(i > 0)
                    os.write(buffer, 0, buffer.length);
          is.close();
          os.close();

Answer 1

Hi All,
I had hard time trying to find a send SOAP DIME attachment
code for the web service. And here it is, I wrote one,
but I use to easy way to deploy the service.
I just simply change the extension .java to .jws,
so, can you all tell me whether it will be a problem or not ?
And please review my code below, I debugged and no error,
but I am not sure if it is working right.
Basiclly 2 operations:
public String generateID(int artID)
public File detachFile(String filename)
Please comment on this code, I am trying to make it
more robust, so, that I can redo it and post it to share with
everybody.
thanks,
Derek
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Iterator;
import java.io.*;
import java.security.*;
import java.security.NoSuchAlgorithmException;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.xml.soap.AttachmentPart;
import org.apache.axis.AxisFault;
import org.apache.axis.Message;
import org.apache.axis.MessageContext;
import org.apache.axis.attachments.Attachments;
import org.apache.axis.attachments.AttachmentsImpl;
import org.apache.log4j.Logger;
public class AttachmentYPMG
     private static final Logger _logger = Logger.getLogger(AttachmentYPMG.class);
     public AttachmentYPMG()
     public String generateID(int artID)
          String artid = Integer.toString(artID);
          String md5_hash_string = plainStringToMD5(artid);
          return md5_hash_string;
     private String plainStringToMD5(String input) {
            // Some stuff we will use later
            MessageDigest md = null;
            byte[] byteHash = null;
            StringBuffer resultString = new StringBuffer();
            // Bad things can happen here
            try {
              // Choose between MD5 and SHA1
                   md = MessageDigest.getInstance("MD5");
            } catch(NoSuchAlgorithmException e) {
                System.out.println("NoSuchAlgorithmException caught!");
                System.exit( -1);
            // Reset is always good
            md.reset();
            // We really need some conversion here
           md.update(input.getBytes());
            // There goes the hash
            byteHash = md.digest();
           //  Now here comes the best part
            for(int i = 0; i < byteHash.length; i++) {
              resultString.append(Integer.toHexString(0xFF & byteHash));
          // That's it!
          return(resultString.toString());
     public File detachFile(String filename)
          InputStream is = null;
          FileOutputStream os = null;
          File file = null;
          int totalAttachments ;
          try
               //Get all the attachments
               AttachmentPart[] attachments = getMessageAttachments();
               * getMessageAttachments() as provided by Steve Loughran in his mail
               * to axis-user group
               * http://www.mail-archive.com/[email protected]/msg08732.html
               //Put the logic in a loop for totalAttachments for multiple
               // attachments.
               totalAttachments = attachments.length;
               _logger.debug("saveFile(String filename = " + filename + ") - " +
                              "Total Attachments Received Are: "+ totalAttachments);
               //Extract the first attachment. (Since in this case we have only one attachment sent)
               DataHandler dh = attachments[0].getDataHandler();
               //Extract the file name of the first attachment.
               String name = filename;
               _logger.debug("saveFile(String filename = " + filename + ") - File received on server is: " + name);
               //Get the streams to file and from attachment, then stream to disk
               is = dh.getInputStream();
               file = new File(name);
               os = new FileOutputStream(file);
               this.writeBuffersAndClose(is, os);
          } catch (Exception e)
               _logger.error("detachFile(String filename = " + filename + ")", e);
               //throw new AttachmentException(e);
          //if(file!= null)
                    return file;
          //else
               //throw new AttachmentException("The attachment was not saved");
     * extract attachments from the current request
     * @return a list of attachmentparts or an empty array for no attachments
     * support in this axis buid/runtime
     private AttachmentPart[] getMessageAttachments() throws AxisFault
          * Reusing the method implementation for AttachmentPart[]
          * getMessageAttachments() as provided by Steve Loughran in his mail to
          * axis-user group
          * http://www.mail-archive.com/[email protected]/msg08732.html
          MessageContext msgContext = MessageContext.getCurrentContext();
          Message reqMsg = msgContext.getRequestMessage();
          Attachments messageAttachments = reqMsg.getAttachmentsImpl();
          if (null == messageAttachments)
               System.out.println("no attachment support");
               return new AttachmentPart[0];
          int attachmentCount = messageAttachments.getAttachmentCount();
          AttachmentPart attachments[] = new AttachmentPart[attachmentCount];
          Iterator it = messageAttachments.getAttachments().iterator();
          int count = 0;
          while (it.hasNext())
               AttachmentPart part = (AttachmentPart) it.next();
               attachments[count++] = part;
          return attachments;
     * Simple method for writing one stream from another.
     * @param is
     * @param os
     * @throws IOException
     private void writeBuffersAndClose(InputStream is, OutputStream os)
          throws IOException
          int i = 0;
          byte [] buffer = new byte[1024];
          while (i != -1)
               i = is.read(buffer, 0, buffer.length);
               if(i > 0)
                    os.write(buffer, 0, buffer.length);
          is.close();
          os.close();