Network Deployment (Distributed operating systems), v8.0 > Tune performance > Tune web services > Tune bus-enabled web services

Include SOAP header schemas in the SDO repository

Use this task to improve mediation performance by inserting the SOAP header schema into the SDO repository.
Mediations accessing SOAP headers should ensure that the SOAP header schema is made available to the SDO repository. This simplifies access to the header fields (see Web Services code example) and can provide a significant performance benefit. Usually the schema (.xsd file) for a SOAP header is already available to the application developer.

Here is an example of a header (used for routing) that is passed in the SOAP message:

<soapenv:Header>
<hns0:myClientToken xmlns:hns0="http://www.ibm.com/wbc">     
<UseRoutingId>true
</ UseRoutingId >     
<RoutingID>5
</ RoutingID > 
</hns0: myClientToken >
</soapenv:Header> 

Here is an example of an associated header schema:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
           targetNamespace="http://www.ibm.com/wbc"
           elementFormDefault="unqualified">
<xs:element name=" myClientToken">
<xs:complexType>
<xs:sequence>
<xs:element name="UseRoutingId" type="xs:string"/>
<xs:element name="RoutingID" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema> 

To insert the schema into the SDO repository...

Procedure

1. Create a script that contains the following code:

   • For Jython, create a script called sdoXSDImport.py:

     #
     xsdFile=sys.argv[0]
     xsdKey=sys.argv[1]
     sdoRep=AdminControl.queryNames("*,type=SdoRepository,node=%s" % AdminControl.
     getNode)
     print AdminControl.invoke(sdoRep , importResource([xsdKey , xsdFile]))
     
     

   • For Jacl, create a script called sdoXSDImport.jacl:

     #
     set xsdFile [lindex $argv 0]
     set xsdKey  [lindex $argv 1]
     set sdoRep [$AdminControl queryNames *,type=SdoRepository,node=[$AdminControl
      getNode]]
     puts [$AdminControl invoke $sdoRep importResource [list $xsdKey $xsdFile]]
     
     

   To create an equivalent script for removing a resource from the SDO repository, take a copy of this script and modify the final line as follows:

   ### Jython

   AdminControl.invoke(sdoRep , "removeResource" , [[xsdKey , "false"]])
   

   ### Jacl

   $AdminControl invoke $sdoRep removeResource [list $xsdKey false]
   

2. Use the wsadmin scripting client to insert the schema into the SDO repository by entering the following command.

   • To use the Jython script:

     wsadmin -lang jython -f sdoXSDImport.py your_header.xsd your_header_namespace
     
     

   • To use the Jacl script:

     wsadmin -f sdoXSDImport.jacl your_header.xsd your_header_namespace
     
     

   where

   • your_header.xsd is the name of the file that contains your header schema.

   • your_header_namespace is the target namespace for the header. For example http://yourCompany.com/yourNamespace.

Performance tuning for mediations
Mediation programming

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