DILIGENT Provider

THIS SECTION OF GCUBE DOCUMENTATION IS OBSOLETE. THE NEW VERSION IS UNDER CONSTRUCTION.

HOW TO PLUG the DILIGENT Provider into DILIGENT Services.

The DILIGENTProvider provides new WS-ResourceProperties and operations (not in the Beta version) to DILIGENT services.

It's available inside the DHN_installer archive, and automatically deployed on the DHN.

These are the steps to follow:

• yourservice.wsdl has to import DiligentProvider.wsdl.
  • adding the namespace mapping:

xmlns:diligent="http://diligentproject.org/namespaces/common/provider/DILIGENTProvider"

• importing DiligentProvider.wsdl from standard globus schema location:

<wsdl:import namespace=
   		 "http://diligentproject.org/namespaces/common/provider/DILIGENTProvider"
   		 location="../../common/provider/DILIGENTProvider/DiligentProvider.wsdl"/>

• extending DiligentProvider provider in your porttype:

<portType name="YourServicePortType" 
    				wsdlpp:extends="wsrpw:GetResourceProperty
                   	               wsrpw:GetMultipleResourceProperties
                   	               wsrpw:SetResourceProperties
                    	               wsrpw:QueryResourceProperties
	            	               wsrlw:ImmediateResourceTermination
		    		       wsntw:NotificationProducer
		    		       diligent:DiligentProviderPortType">

• The service wsdd file has to be modified in order to include the org.diligentproject.common.provider.DILIGENTProviderImpl to the list of providers:

<parameter name="providers" value="org.diligentproject.common.provider.DILIGENTProviderImpl GetRPProvider GetMRPProvider

 SetRPProvider QueryRPProvider"/>

• Add DiligentProvider functionalities to your service Resource class implementation;
  • import diligent provider package: import org.diligentproject.common.provider.*;
  • the Resource class of the Service has to implement the interface DILIGENTProvider:

public class  DISBrokerResource   implements Resource, ResourceProperties,  DILIGENTProvider{

...

• Developers has to create an instance of class DILIGENTPropertySet instead of SimpleResourcePropertySet:

this.propSet =  new DILIGENTPropertySet(DILIGENTResourceQNames.RESOURCE_PROPERTIES);

this will add 8 new resource properties to your resource:

<xsd:element name="RunningInstanceID" type="xsd:string"/>
			<xsd:element name="ServiceID" type="xsd:string"/>	
			<xsd:element name="DHNID" type="xsd:string"/>		
			<xsd:element name="ServiceName" type="xsd:string"/>	
			<xsd:element name="ServiceClass" type="xsd:string"/>	
			<xsd:element name="VOName" type="xsd:string"/>	
			<xsd:element name="DiligentType" type="xsd:string"/>                        
                        <xsd:element name="DLs" type="xsd:string"/>

• The interface DILIGENTProvider requires the implementation of the method:

public DILIGENTPropertySet getDILIGENTPropertySet() {
	return (DILIGENTPropertySet)this.propSet;
}

This method allows HNM to set the DILIGENT Provider Specific RP of your Service (NO Problem for the service specific RP :->), and allows also HNM to retrieve info that let it to register your RPs to a new VO.

• Also is needed to modify the registration file that is passed pass to DIS-IP in order to register also the new ws-properties( in future version of the DILIGENT provider new ws-properties will be added automatically to registration file):

<ServiceGroupRegistrationParameters
   xmlns:sgc="http://mds.globus.org/servicegroup/client"
   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/03/addressing"
   xmlns:agg="http://mds.globus.org/aggregator/types"
   xmlns="http://mds.globus.org/servicegroup/client">
   <!-- Specifies that the registration will be renewed every 30
        seconds -->
   <RefreshIntervalSecs>60</RefreshIntervalSecs>


   <!-- <Content> specifies registration specific information -->
   <Content xsi:type="agg:AggregatorContent"
      xmlns:agg="http://mds.globus.org/aggregator/types">

      <agg:AggregatorConfig>
      <agg:GetMultipleResourcePropertiesPollType 	

xmlns:registry="http://diligentproject.org/namespaces/informationservice/disregistry/DISRegistryService"

	<!-- ADD the DILIGENT provider Ns -->

      xmlns:provider="http://diligentproject.org/namespaces/common/provider/DILIGENTProvider">

  	   <agg:PollIntervalMillis>60000</agg:PollIntervalMillis>

   	   <agg:ResourcePropertyNames>registry:UniqueID</agg:ResourcePropertyNames>
   	   <agg:ResourcePropertyNames>registry:ResourceType</agg:ResourcePropertyNames>
   	   <agg:ResourcePropertyNames>registry:AuthPolicies</agg:ResourcePropertyNames>
  	   <agg:ResourcePropertyNames>registry:Profile</agg:ResourcePropertyNames>
  	
	<!-- ADD these list of WS-Properties -->
           <agg:ResourcePropertyNames>provider:RunningInstanceID</agg:ResourcePropertyNames>
	   <agg:ResourcePropertyNames>provider:ServiceID</agg:ResourcePropertyNames>
	   <agg:ResourcePropertyNames>provider:ServiceName</agg:ResourcePropertyNames>
	   <agg:ResourcePropertyNames>provider:ServiceClass</agg:ResourcePropertyNames>
           <agg:ResourcePropertyNames>provider:VOName</agg:ResourcePropertyNames>
           <agg:ResourcePropertyNames>provider:DiligentType</agg:ResourcePropertyNames>
           <agg:ResourcePropertyNames>provider:DLs</agg:ResourcePropertyNames>
	   <agg:ResourcePropertyNames>provider:DHNID</agg:ResourcePropertyNames>
   

 </agg:GetMultipleResourcePropertiesPollType>
 	 </agg:AggregatorConfig>
      <agg:AggregatorData/>
   </Content>

</ServiceGroupRegistrationParameters>

• The Service Build file has to be modified in order to copy into the build schema dir the DILIGENT Provider WSDL. So in the init target of the build file, just add the command :

<!-- Sets up the build directory structure -->
	<target name="init">
		<mkdir dir="${build.dir}" />
		<mkdir dir="${build.dest}" />
		..........
		<mkdir dir="${schema.dest}" />
		<copy toDir="${schema.dest}">
			.......
                        *******ADD THESE LINES*****
			<fileset dir="${schema.provider.src}" casesensitive="yes">
                              <include name="diligentproject/common/**/*"/>
                        </fileset>

		</copy>

The DiligentProvider Resource Properties are filled during registration to DIS by DIS-IP/NAL methods.

--Andrea 17:15, 15 February 2007 (EET)

DILIGENT Provider upgrade for Process Design

The creation of Compound Services using gCube Services that include the DILIGENT Provider has some issues related to the WSDL processing. In fact, the Service WSDLs that include the DILIGENT Provider WSDL are not correctly validated by the WSDL preprocessor. This is because of some types imported from an external XML Schema are not correctly resolved. In order to allow the creation of Compound Services, a slightly modification to the Diligent Provider's WSDL has been needed. The definition of the types above has been reorganized and all of them has been included in a separate schema file named DiligentProvider.xsd. This file has to be imported inside the gCube service's WSDL schema sections as follows:

 <xsd:import
       namespace="http://diligentproject.org/namespaces/common/provider/DILIGENTProvider"
       schemaLocation="../diligentproject/common/provider/DILIGENTProvider/DiligentProvider.xsd"/> 

The Schema Location path has also to be fixed. All services need to have only a single schema subfolder ( i.e. schema/Myservice/myservice.wsdl) otherwise the Process Design will not solve DiligentProvider.wsdl/xsd inclusion. Since the Process Design supports only one level of schema organization in the file system (i.e. schema/Myservice/myservice.wsdl), the gCube services that have to respect this constraint have now to include the Diligent Provider WSDL file has also to be modified as follows:

<wsdl:import namespace=
   		 "http://diligentproject.org/namespaces/common/provider/DILIGENTProvider"
   		 location="../diligentproject/common/provider/DILIGENTProvider/DiligentProvider.wsdl"/>