Need to get the Mail attachment name as it is to the receiver file adapter

Question

I am doing a Mail to File scenario. I need to get the attachment from the mail and store it on the file server. I am using the PayloadSwap bean in the sender mail adapter. My requirement is to carry forward the attachement name as it is to the receiver file adapter side and store the file with the same name.
Did any one try doing this? I was looking at developing an adapter module but got struck as I could not find whether the attachement name is stored in the XI payload after it has got swapped using the swap bean.
Any help would be appreciated.
VJ

Answer 1

Oops pressed the send key. Take two.
This is becoming a damn nightmare. When I run the adapter I am getting ModuleExceptions. Can you pass your eyes over these Java config settings to see what I am doing wrong. Using NWDS CE 7.1 with PI 7.1 both at SP07. All the imports were taken from PI 7.1 after SP07 was applied. The build id of NWDS is
SAP NetWeaver Developer Studio
SAP NetWeaver 7.1 Composition Environment SP07 PAT0001
Build id: 200901152336
APPLICATION.XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN"
"http://java.sun.com/dtd/application_1_3.dtd">
<application>
<display-name>MailPOP_EAR</display-name>
<description>EAR description</description>
<module>
<ejb>MailPOP_EJB.jar</ejb>
</module>
</application>
APPLICATION-J2EE-ENGINE.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application-j2ee-engine SYSTEM "application-j2ee-engine.dtd">
<application-j2ee-engine>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="service">engine.security.facade</reference-target>
</reference>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="library">engine.j2ee14.facade</reference-target>
</reference>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="service">com.sap.aii.af.svc.facade</reference-target>
</reference>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="interface">com.sap.aii.af.ifc.facade</reference-target>
</reference>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="library">com.sap.aii.af.lib.facade</reference-target>
</reference>
<reference reference-type="hard">
<reference-target provider-name="sap.com" target-type="library">com.sap.base.technology.facade</reference-target>
</reference>
<fail-over-enable mode="disable" />
</application-j2ee-engine>
EJB-J2EE-ENGINE.XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-j2ee-engine SYSTEM "ejb-j2ee-engine.dtd">
<ejb-j2ee-engine>
<enterprise-beans>
<enterprise-bean>
<ejb-name>GetMailAttachment</ejb-name>
<jndi-name>GetMailAttachment</jndi-name>
<session-props/>
</enterprise-bean>
</enterprise-beans>
</ejb-j2ee-engine>
EJB-JAR.XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans
2.0//EN"
"http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<description>EJB JAR description</description>
<display-name>EJB JAR</display-name>
<enterprise-beans>
<session>
<ejb-name>GetMailAttachment</ejb-name>
<home>com.sap.aii.af.lib.mp.module.ModuleHome</home>
<remote>com.sap.aii.af.lib.mp.module.ModuleRemote</remote>
<local-home>com.sap.aii.af.lib.mp.module.ModuleLocalHome</local-home>
<local>com.sap.aii.af.lib.mp.module.ModuleLocal</local>
<ejb-class>sample.GetMailAttachment</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
SENDER MAIL ADAPTER modules
1 AF_Modules/PayloadSwapBean Local EB 1
2 GetMailAttachment Local EB 2
3 sap.com/com.sap.aii.adapter.mail.app/XIMailAdapterBean Local EB 3
1     swap.keyName          payload-name
1     swap.keyValue          MailAttachment-1
RECEIVER FILE MODULES
1     localejbs/AF_Modules/DynamicConfigurationBean     Local Enterprise Bean     1
2     localejbs/CallSapAdapter                    Local Enterprise Bean     2
1     key.0          write http://sap.com/xi/XI/System/File FileName
1     value.0          message.interface
VARIABLE FILENAME SUBST WITH ASMA TURNED ON
fName     message:interface_name
JAVA SOURCE
package sample;
import javax.ejb.CreateException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import com.sap.aii.af.lib.mp.module.Module;
import com.sap.aii.af.lib.mp.module.ModuleContext;
import com.sap.aii.af.lib.mp.module.ModuleData;
import com.sap.aii.af.lib.mp.module.ModuleException;
import com.sap.engine.interfaces.messaging.api.Message;
import com.sap.engine.interfaces.messaging.api.MessagePropertyKey;
import com.sap.engine.interfaces.messaging.api.TextPayload;
import com.sap.engine.interfaces.messaging.api.XMLPayload;
import com.sap.aii.af.service.cpa.Channel;
@ejbHome <{com.sap.aii.af.lib.mp.module.ModuleHome}>
@ejbLocal <{com.sap.aii.af.lib.mp.module.ModuleLocal}>
@ejbLocalHome <{com.sap.aii.af.lib.mp.module.ModuleLocalHome}>
@ejbRemote <{com.sap.aii.af.lib.mp.module.ModuleRemote}>
@stateless
<code>GetMailAttachment</code>
@SuppressWarnings("unused")
public class GetMailAttachment implements SessionBean, Module {
     private static final long serialVersionUID = 7612238514043673502L;
     private SessionContext myContext;
     private MessagePropertyKey myFileName;
     public void ejbRemove() {
     public void ejbActivate() {
     public void ejbPassivate() {
     public void setSessionContext(SessionContext context) {
          myContext = context;
@throws CreateException
     public void ejbCreate() throws CreateException {
     public void getMessageProperty(MessagePropertyKey FileName) {
          myFileName = FileName;
@param moduleContext
           Contains data of the module processor that might be important
           for the module implementation such as current channel ID
@param inputModuleData
           Contains the input XI message as principal data plus eventual
           set supplemental data
@return ModuleData Contains the (changed) output XI message. Might be the
        response message if the module is the last in the chain.
@exception ModuleException
               Describes the cause of the exception and indicates whether
               an retry is sensible or not.
     @SuppressWarnings("deprecation")
     public ModuleData process(ModuleContext moduleContext,
               ModuleData inputModuleData) throws ModuleException {
          try {
               Message msg = (Message) inputModuleData.getPrincipalData();
               TextPayload payload = msg.getDocument();
               String contentType = payload.getContentType();
               // Content Type could be something like
               // text/plain;charset="UTF-8";name="file.txt"
               contentType = contentType.replaceAll("\"", "");
               int i = contentType.lastIndexOf("=") + 1;
               String fileName = contentType.substring(i);
               msg.setMessageProperty(myFileName, fileName);
               inputModuleData.setPrincipalData(msg);
          } catch (Exception e) {
          return inputModuleData;
JAVA ERRORS
2009-02-04 11:41:14     Information     Mail: calling the module processor for channel LMK_Common_Mail_Sender
2009-02-04 11:41:14     Information     Swap: swapping by payload-name ? MailAttachment-1
2009-02-04 11:41:14     Information     Swap: successfully swapped
2009-02-04 11:41:14     Information     Mail: message leaving the adapter (call)
2009-02-04 11:41:14     Information     The application tries to send an XI message asynchronously using connection AFW.
2009-02-04 11:41:14     Information     Backward validation is enabled
2009-02-04 11:41:14     Error     Unable to validate the message with message ID 8702df71-f254-11dd-9b9b-001a64a73518
2009-02-04 11:41:14     Error     Returning to application. Exception: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Content is not allowed in prolog.
2009-02-04 11:41:14     Error     Mail: error occured: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Content is not allowed in prolog.
2009-02-04 11:41:14     Error     Mail: error occured: com.sap.aii.af.lib.mp.module.ModuleException