Dynamically Set Archive Drectory Location for FTP Transfer

In Some of the scenarios of FTP File transfer in a typical BPEL Process, we might need to set the location of Archive Directory  dynamically, either by picking from some configuration properties file or from the payload at runtime. To achieve this we need to follow the below mentioned steps:

1. In FTP WSDL file set the jca properties to select logical directories for Archive or source file location directory.Also Set the property "UseRemoteArchive"  to true.  
             <jca:operation FileType="binary"
             LogicalDirectory="directory"
             InteractionSpec="oracle.tip.adapter.ftp.outbound.FTPReadInteractionSpec"
             LogicalArchiveDirectory="FileArchiveDirectory"
             DeleteFile="true"
             FileName="fileName"
             OpaqueSchema="true"
             UseRemoteArchive="true" >
2. In the BPEL service flow, when we invoke the FTP adapter to either get/put files, we can see that bpel.xml file gets update with the partner link binding details. In the partner link binding details keep the values blank for LogicalArchiveDirectory.                                                                                                      <property name="FileArchiveDirectory" type="LogicalArchiveDirectory"></property>.
3. However we can set the outbound directory location by using ftpAdapterOutboundHeader. We cannot do the same for the Archive Directory. Hence we will use the following function in the JavaEmbedding to set the ArchiveDirectory.                                      Location.getLocator().lookupProcess("<<ProcessName>>").getDescriptor().getPartnerLinkBindings().getPartnerLinkBinding("<<PartnerLinkBindingName>>").setPropertyValue("FileArchiveDirectory",(String)getVariableData("archiveDir"));  
   }    
   catch(Throwable ex){  
   addAuditTrailEntry("Exception - " + ex.getMessage());  
   }                          This way we can set the Archive Directory Location in the bpel.xml file dynamically  where getVariableData("archiveDir") is the archive directory location variable set in the bpel flow.