Creating a monitor for WebSphere Application Server for WSDM resources (deprecated)

The Web Services Distributed Management (WSDM) monitoring support provided in the Version 6.1 Feature Pack for Web Services uses an external management software. It is, however, more useful to build a custom WebSphere® Application Server monitor for WSDM. Use this task to create a WSDM monitor that is based on the Java API for XML Web Services (JAX-WS) programming model.

Before you begin

Deprecated feature: The Web Services Distributed Management (WSDM) is a deprecated feature in the product. This task topic and the related links for WSDM topics are not going to be updated beyond Version 7.0. Instead of using WSDM, you can administer your web services applications with the administrative console or scripting.

The Web Services Distributed Management (WSDM) monitoring support that is provided in the Version 6.1 Feature Pack for Web Services came with a built-in code sample. The code sample is a wsdm-demo.jar file in the product that you can use to retrieve the statistics for a servlet resource. The wsdm-demo.jar file is not available and will not be available in the future. Instead of following these steps to create a WSDM monitor and use WSDM, you can administer your web services applications with the administrative console or scripting. WSDM remains part of the product and is supported in this state.

Best practices: IBM® WebSphere Application Server supports the Java™ API for XML-Based Web Services (JAX-WS) programming model and the Java API for XML-based RPC (JAX-RPC) programming model. JAX-WS is a web services programming model that extends the foundation provided by the JAX-RPC programming model. The JAX-WS programming model simplifies development of web services and clients through support of a standards-based annotations model. Although the JAX-RPC programming model and applications are still supported, take advantage of the easy-to-implement JAX-WS programming model to develop new web services applications and clients.

Procedure

Retrieve the relative URLs.

The following table contains a list of URLs that you can use to retrieve the Web Services Description Language (WSDL) files for each supported resource that is in the product.

Table 1. Relative URLs to WSDM WSDL files . Use this list of URLS to retrieve the Web Services Description Language (WSDL) files for each supported resource that is in the product.
Resource	URL
Service group	/websphere-management/services/service-group?wsdl
Application	/websphere-management/services/application?wsdl
Application server	/websphere-management/services/applicationserver?wsdl
Data source	/websphere-management/services/datasource?wsdl
Enterprise JavaBeans	/websphere-management/services/ejb?wsdl
Java virtual machine (JVM)	/websphere-management/services/jvm?wsdl
Servlet	/websphere-management/services/servlet?wsdl
WebSphere cluster	/websphere-management/services/webspherecluster?wsdl
WebSphere domain	/websphere-management/services/webspheredomain?wsdl
Web service	/websphere-management/services/webservices?wsdl

Create a skeleton code for the service endpoint interface (SEI) files for the web services client.
After retrieving the relative URLs, create a skeleton code for the SEI files by running the WSDL to Java tooling against the WSDM WSDL files. You can use the IBM Rational Application Developer or wsimport command utility for this task. Run the wsimport utility against the retrieved WSDL file.
Important: At a minimum, WSDL files for the service group resource and the resource that you want must be compiled.
When you finish this step, you have created the client code that is used to communicate with the service provider, which is the WSDM service endpoint.

Write the code for the JAX-WS WSDM client.

Review the following JAX-WS WSDM client sample code before you start writing the client code. The sample client code demonstrates a complete implementation of a client suitable for polling statistics for a resource. It is used to delegate the setting up of WS-Addressing resource references, request and response processing.

Sample WSDM JAX-WS client

import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;
import javax.xml.ws.BindingProvider;

import org.oasis_open.docs.wsrf.rp_2.GetResourcePropertyResponse;
import org.oasis_open.docs.wsrf.sg_2.EntryType;
import org.oasis_open.docs.wsrf.sgw_2.ServiceGroupPortType;
import org.oasis_open.docs.wsrf.sgw_2.ServiceGroupService;
import org.w3c.dom.Element;

import com.ibm.wsspi.wsaddressing.AttributedURI;
import com.ibm.wsspi.wsaddressing.EndpointReference;
import com.ibm.wsspi.wsaddressing.EndpointReferenceManager;
import com.ibm.wsspi.wsaddressing.WSAConstants;
import com.ibm.wsspi.wsaddressing.WSAddressingFactory;
import com.ibm.xmlns.prod.websphere.management.servlet.ServletPortType;
import com.ibm.xmlns.prod.websphere.management.servlet.ServletService;

public class WsdmJaxWsClient {

	static QName WAS_MBEAN_ID = new QName("http://ibm.com/2006/v1.3", "WAS_Resource_MbeanIdentifier");
	static QName WAS_RESOURCE_ID = new QName("http://ibm.com/2006/v1.3", "WAS_Resource_MRID");
	static QName WAS_RESOURCE_TYPE = new QName("http://ibm.com/2006/v1.3", "WAS_Resource_Type");
	private String ServerAndHost = null;

	public WsdmJaxWsClient(String serverAndHost) {
		this.ServerAndHost = serverAndHost;
	}

	/**
	 * Get a list of available resources from WSDM application
	 */
	public List<EntryType> getResources() throws Exception {
		// Create service and obtain service reference
		ServiceGroupService sgs = new ServiceGroupService();
		ServiceGroupPortType sgp = sgs.getServiceGroupPort();

		// Create wsa:Action
		URI actionUri = new URI(
				"http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyRequest");
		AttributedURI wsaAction = WSAddressingFactory
				.createAttributedURI(actionUri);

		// Create wsa:To and populate reference parameters
		String sgServicePortURI = "http://" + ServerAndHost
				+ "/websphere-management/services/service-group";
		QName resourceId = new QName("http://ws.apache.org/muse/addressing",
				"ResourceId", "muse-wsa");
		EndpointReference wsaDestinationEpr = EndpointReferenceManager
				.createEndpointReference(new URI(sgServicePortURI));
		wsaDestinationEpr.setReferenceParameter(resourceId, "MuseResource-1");

		// Populate requestContext
		Map<String, Object> rc = ((BindingProvider) sgp).getRequestContext();
		rc.put(WSAConstants.WSADDRESSING_ACTION, wsaAction);
		rc.put(WSAConstants.WSADDRESSING_DESTINATION_EPR, wsaDestinationEpr);
		rc.put(BindingProvider.SOAPACTION_USE_PROPERTY, Boolean.TRUE);
		rc
				.put(
						BindingProvider.SOAPACTION_URI_PROPERTY,
						"http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyRequest");
		rc.put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, sgServicePortURI);

		// Retrieve a list of available resources
		QName entryQName = new QName("http://docs.oasis-open.org/wsrf/sg-2",
				"Entry");
		GetResourcePropertyResponse grpr = sgp.getResourceProperty(entryQName);

		// The returned list<object> must be converted to a more meaningful type
		List<Object> inputList = grpr.getAny();
		List<EntryType> outputList = new ArrayList<EntryType>(inputList.size());

		// Complete the element by element conversion
		for (Object obj : inputList) {
			JAXBElement jbe = (JAXBElement) obj;
			EntryType entry = (EntryType) jbe.getValue();

			outputList.add(entry);
		}

		return outputList;
	}

	/**
	 * Read a property of specified entry
	 */
	public Object getResourceProperty(EntryType entry, QName property)
			throws Exception {
		// Create service and obtain service reference
		ServletService rs = new ServletService();
		ServletPortType rp = rs.getServletPort();

		// Create wsa:Action
		URI actionUri = new URI(
				"http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyRequest");
		AttributedURI wsaAction = WSAddressingFactory
				.createAttributedURI(actionUri);

		// Create wsa:To and populate resource parameters
		String servicePortURI = getResourceAddress(entry);
		// QName resourceId = new QName("http://ws.apache.org/muse/addressing",
		// "ResourceId", "muse-wsa");
		EndpointReference wsaDestinationEpr = EndpointReferenceManager
				.createEndpointReference(new URI(servicePortURI));
		wsaDestinationEpr.setReferenceParameter(WAS_RESOURCE_ID,
				findListMember(entry, WAS_RESOURCE_ID));
		wsaDestinationEpr.setReferenceParameter(WAS_MBEAN_ID, findListMember(
				entry, WAS_MBEAN_ID));
		wsaDestinationEpr.setReferenceParameter(WAS_RESOURCE_TYPE,
				findListMember(entry, WAS_RESOURCE_TYPE));

		// Populate requestContext
		Map<String, Object> rc = ((BindingProvider) rp).getRequestContext();
		rc.put(WSAConstants.WSADDRESSING_ACTION, wsaAction);
		rc.put(WSAConstants.WSADDRESSING_DESTINATION_EPR, wsaDestinationEpr);
		rc.put(BindingProvider.SOAPACTION_USE_PROPERTY, Boolean.TRUE);
		rc
				.put(
						BindingProvider.SOAPACTION_URI_PROPERTY,
						"http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyRequest");
		rc.put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, servicePortURI);

		// Retrieve a list of available resources
		GetResourcePropertyResponse response = null;
		response = rp.getResourceProperty(property);

		// Return the property
		if (response != null) {
			return ((JAXBElement) response.getAny().get(0)).getValue();
		} else {
			return null;
		}
	}

	public String getResourceMBeanID(EntryType entry) {
		return findListMember(entry, WAS_MBEAN_ID);
	}

	public String getResourceMRID(EntryType entry) {
		return findListMember(entry, WAS_RESOURCE_ID);
	}

	public String getResourceType(EntryType entry) {
		return findListMember(entry, WAS_RESOURCE_TYPE);
	}

	/**
	 * Extract the ERPs address
	 */
	public String getResourceAddress(EntryType entry) {
		if (entry == null)
			return null;
		else
			return entry.getMemberServiceEPR().getAddress().getValue();
	}

	/**
	 * EPRs cannot be looked up by their QName. This method does a linear search
	 * of the EPR to find a particular reference parameter
	 */
	private String findListMember(EntryType entry, QName name) {

		if (name == null || entry == null) return null;

		List<Object> res = entry.getMemberServiceEPR().getReferenceParameters()
				.getAny();

		for (Object ob : res) {
			Element e = (Element) ob;
			if (name.getLocalPart().equals(e.getNodeName()))
				return e.getTextContent();
		}

		return null;
	}
}

Create the WSDM monitor.

The following example is used for polling a servlet for the number of requests that the servlet is responding to.

WSDM monitor

// Instantiate the client and instruct it to poll
// the server at localhost:9080
WsdmJaxWsClient wjc = new WsdmJaxWsClient("localhost:9080");
		
// Get a list of all available resources
List<EntryType> entries = wjc.getResources();

// Iterate through available resources until you find
// a servlet resource
EntryType servlet = null;
for (EntryType entry: entries){
	if ("servlet".equals(wjc.getResourceType(entry))){
		servlet = entry;
		System.out.println("URL " + wjc.getResourceAddress(entry));
		System.out.println("Type " + wjc.getResourceType(entry));
		System.out.println("MbeanID" + wjc.getResourceMBeanID(entry));
		System.out.println("ResourceID " + wjc.getResourceMRID(entry));
		break;
	}
}

// Request Concurrent Requests PMI statistics from this servlet
Object servletConcurrentRequests =
	wjc.getResourceProperty(servlet, J2EEConstants.CONCURRENT_REQUESTS_QNAME);

System.out.println(servletConcurrentRequests);

Obtain a list of available resources.
The sample JAX-WS WSDM client provided in code example 1 shows a list of available resources. The list is filtered to obtain some resources and statistics from these resource objects. In this step, the client is initialized for an application server that is installed on a local machine and it is servicing HTTP requests on port 9080.
Initialize WSDM client
```
// Instantiate the client and instruct it to poll
// the server at localhost:9080
WsdmJaxWsClient wjc = new WsdmJaxWsClient("localhost:9080");
		
// Get a list of all available resources
List<EntryType> entries = wjc.getResources();
```

Filter the available resources.

The list of resources returned by getResources call is lengthy. This call returns a list of all resources that are currently available, not necessarily the particular resource type that you might be interested in.

Filter resources

// Iterate through available resources until you find a servlet resource
EntryType servlet = null;
for (EntryType entry: entries){
	if ("servlet".equals(wjc.getResourceType(entry))){
		servlet = entry;
		System.out.println("URL " + wjc.getResourceAddress(entry));
		System.out.println("Type " + wjc.getResourceType(entry));
		System.out.println("MbeanID" + wjc.getResourceMBeanID(entry));
		System.out.println("ResourceID " + wjc.getResourceMRID(entry));
		break;
	}
}

You might want to expand this example to find a particular resource instead of finding the first available servlet. To complete this action, you need to do further filtering based on getResourceMBeanID. The string representing the resource is similar to the following code example:

Sample resource MBean identifier string

WebSphere:WebModule=WSDMDemo.war,name=myServlet,process=server1,Application=wsdm-demo,platform=dynamicproxy,
J2EEApplication=wsdmdDemo,node=demoNode01,J2EEName=wsdm-demo#WSDMDemo.war#mySelvlet,j2eeType=Servlet,
J2EEServer=server1,Server=server1,version=6.1.0.7,type=Servlet,mbeanIdentifier=
wsdm-demo#WSDMDemo.war#myServlet,cell=demoCell01,spec=1.0

Poll resources for statistics.

Finally, you can now request the resource property. A list of available URLs for a given resource can be obtained from the WSDL file in Table 1. The following example is a list of properties for a servlet:

Available properties for a servlet resource

<xsd:element name="ServletResourceProperties">
xsd:complexType>
	xsd:sequence>

	!--  WSDM MUWS Part 1 - Identity -->
	<xsd:element ref="muws1:ResourceId"></xsd:element>

	!--  WSDM MUWS Part 1 - ManageabilityCharacteristics -->
	<xsd:element ref="muws1:ManageabilityCapability" minOccurs="0" maxOccurs="unbounded"></xsd:element>
	
	!--  WSDM MUWS Part 2 - Description -->
	<xsd:element ref="muws2:Caption" minOccurs="0" maxOccurs="unbounded"></xsd:element>
	<xsd:element ref="muws2:Description" minOccurs="0" maxOccurs="unbounded"></xsd:element>
	<xsd:element ref="muws2:Version" minOccurs="0"></xsd:element>

	!--  WSDM MUWS Part 2 - Metrics -->
	<xsd:element ref="muws2:CurrentTime"></xsd:element>

	!--  J2EE Servlet -->
	<xsd:element ref="servlet:ConcurrentRequests"></xsd:element>
	<xsd:element ref="servlet:TotalRequests"></xsd:element>
	<xsd:element ref="servlet:NumberOfErrors"></xsd:element>
	<xsd:element ref="servlet:ResponseTime"></xsd:element>

	
	!--  J2EE ManagedObject -->
	<xsd:element ref="j2ee:ObjectName"></xsd:element>
	<xsd:element ref="j2ee:StateManageable"></xsd:element>
	<xsd:element ref="j2ee:EventProvider"></xsd:element>
	<xsd:element ref="j2ee:StatisticsProvider"></xsd:element>

	</xsd:sequence>
</xsd:complexType>
</xsd:element>

Obtain statistics.

You can use the following code example to poll for the concurrent requests property. Then, you can resolve the property to a QName and pass the property onto the client.

Obtain statistics

// Request Concurrent Requests PMI statistics from this servlet
Object servletConcurrentRequests =
	wjc.getResourceProperty(servlet, new QName("http://www.ibm.com/xmlns/prod/websphere/management/j2ee/servlet", "ConcurrentRequests"));

System.out.println(servletConcurrentRequests);

Results

You have created a custom WSDM monitor that you can use to manage and control resources.

SOAP conversation example

Use the code examples to help you create your custom monitor.

Requesting available resources

The following code example demonstrates how to request for all available resources.

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
	<soap:Header>
    <wsa:To xmlns:wsa="http://www.w3.org/2005/08/addressing">http://test.ibm.com:8080/websphere-management/services/service-group</wsa:To>
		<wsa:Action xmlns:wsa="http://www.w3.org/2005/08/addressing">
        http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyRequest</wsa:Action>
        <wsa:MessageID xmlns:wsa="http://www.w3.org/2005/08/addressing">uuid:2f1abf03-ef3e-0837-b8e6-d34dc8e352e2</wsa:MessageID>
        <wsa:From xmlns:wsa="http://www.w3.org/2005/08/addressing"><wsa:Address>
            http://www.w3.org/2005/08/addressing/role/anonymous</wsa:Address></wsa:From>
<muse-wsa:ResourceId xmlns:muse-wsa="http://ws.apache.org/muse/addressing" xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter=
"true">MuseResource-1</muse-wsa:ResourceId>
</soap:Header>
	<soap:Body>
	<wsrf-rp:GetResourceProperty xmlns:wsrf-rp="http://docs.oasis-open.org/wsrf/rp-2" xmlns:wsrf-sg=
"http://docs.oasis-open.org/wsrf/sg-2">wsrf-sg:Entry</wsrf-rp:GetResourceProperty>
</soap:Body>
</soap:Envelope>

Available resources

This example is a response that has two available resources that are represented as wsrf-sg:Entry XML elements.

<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope" 
xmlns:soapenc="http:www.w3.org/2003/05/soap-encoding" 
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<env:Header>
		<wsa:To>http://www.w3.org/2005/08/addressing/role/anonymous</wsa:To>
		<wsa:Action>http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyResponse</wsa:Action>
		<wsa:MessageID>uuid:4eda30ea-c8ca-2998-2c9f-e2519175a1aa</wsa:MessageID>
		<wsa:RelatesTo RelationshipType="wsa:Reply">uuid:2f1abf03-ef3e-0837-b8e6-d34dc8e352e2</wsa:RelatesTo>
		<wsa:From>
			<wsa:Address>http://test.ibm.com:8080/websphere-management/services/service-group</wsa:Address>
			<wsa:ReferenceParameters><muse-wsa:ResourceId xmlns:muse-wsa="http://ws.apache.org/muse/addressing" IsReferenceParameter="true">
				MuseResource-1</muse-wsa:ResourceId></was:From>
			<was:RelatesTo>uuid:2f1abf03-ef3e-0837-b8e6-d34dc8e352e2</was:RelatesTo>

</env:Header>
<env:Body>
	<wsrf-rp:GetResourcePropertyResponse xmlns:wsrf-rp="http://docs.oasis-open.org/wsrf/rp-2" 
	<wsrf-rp:Entry xmlns:wsrf-sg="http://docs.oasis-open.org/wsrf/sg-2"
	<wsrf-sg:ServiceGroupEntryEPR
	<wsa:Address>	"http://test.ibm.com:8080/websphere-management/services/service-group-entry</wsa:Address>
	<wsa:ReferenceParameters><muse-wsa:ResourceId xmlns:muse-wsa="http://ws.apache.org/muse/addressing">MuseResource-103</muse-wsa:ResourceId>
	</wsa:ReferenceParameters>
	</wsrf-sg:ServiceGroupEntryEPR>
	<wsrf-sg:MemberServiceEPR>
	<wsa:Address>http://test.ibm.com:8080/websphere-management/services/ejb</wsa:Address>
	<wsa:ReferenceParameters>
						<was-wsdm:WAS_Resource_Type>
						<was-wsdm:WAS_Resource_ManagedNodeID xmlns:was-wsdm="http://ibm.com/2006/v1.3"
						<was-wsdm:WAS_Resource_Type xmlns:was-wsdm="http://ibm.com/2006/v1.3">ejb					<was-wsdm:WAS_Resource_MbeanIdentifier
 xmlns:was-wsdm="http://ibm.com/2006/v1.3">
WebSphere:name=EjbClient,process=server1,Application=jms-client,platform=dynamicproxy,J2EEApplication=jms-client,node=
Node01,J2EEName=jms-client#jms-ejb-client.jar#EjbClient,j2eeType=StatelessSessionBean,J2EEServer=server1,Server=server1,version=
7.0.0.0,type=StatelessSessionBean,mbeanIdentifier=jms-client#jms-ejb-client.jar#EjbClient,EJBModule=jms-ejb-client.jar,cell=
Cell01,spec=1.0</was-wsdm:WAS_Resource_MbeanIdentifier>
						<was-wsdm:WAS_Resource_MRID xmlns:was-wsdm="http://ibm.com/2006/v1.3">
ejb:WebSphere:name=EjbClient,process=server1,Application=jms-client,platform=dynamicproxy,J2EEApplication=jms-client,node=
Node01,J2EEName=jms-client#jms-ejb-client.jar#EjbClient,j2eeType=StatelessSessionBean,J2EEServer=server1,Server=server1,version=
7.0.0.0,type=StatelessSessionBean,mbeanIdentifier=jms-client#jms-ejb-client.jar#EjbClient,EJBModule=jms-ejb-client.jar,cell=
Cell01,spec=1.0</was-wsdm:WAS_Resource_MRID>
				</wsa:ReferenceParameters>
				</wsrf-sg:MemberServiceEPR>
				<wsrf-sg:Content/>
				</wsrf-sg:Entry>
				<wsrf-sg:Entry xmlns:wsrf-sg="http://docs.oasis-open.org/wsrf/sg-2">
				<wsrf-sg:ServiceGroupEntryEPR><wsa:Address>http://test.ibm.com:8080/websphere-management/services/service-group-entry</wsa:Address>
				<wsa:ReferenceParameters><muse-wsa:ResourceId xmlns:mus-wsa="http://ws.apache.org/muse/addressing"<MuseResource-97</muse-wsa:
ResourceId></wsa:ReferenceParameters>				
				</wsrf-sg:ServiceGroupEntryEPR>
				<wsrf-sg:MemberServiceEPR>
				<wsa:Address>http://test.ibm.com:8080/websphere-management/services/datasource</wsa:Address>
				<wsa:ReferenceParameters>
					<was-wsdm:WAS_Resource_ManagedNodeID xmlns:was-wsdm="http://ibm.com/2006/v1.3"/>
					<was-wsdm:WAS_Resource_Type xmlns:was-wsdm="http://ibm.com/2006/v1.3">datasource</was-wsdm:WAS_Resource_Type>
					<was-wsdm:WAS_Resource_MbeanIdentifier xmlns:was-wsdm="http://ibm.com/2006/v1.3">WebSphere:name=Default Datasource,process=
server1,platform=dynamicproxy,node=Node01,JDBCProvider=Derby JDBC Provider,diagnosticProvider=true,j2eeType=JDBCDataSource,J2EEServer=
server1,Server=server1,version=7.0.0.0,type=DataSource,mbeanIdentifier=cells/Cell01/nodes/Node01/servers/server1/resources.xml#DataSource_1,
JDBCResource=Derby JDBC Provider,cell=Cell01,spec=1.0</was-wsdm:WAS_Resource_MbeanIdentifier>
					<was-wsdm:WAS_Resource_MRID xmlns:was-wsdm="http://ibm.com/2006/v1.3">datasource:WebSphere:name=Default Datasource,process=
server1,platform=dynamicproxy,node=Node01,JDBCProvider=Derby JDBC Provider,diagnosticProvider=true,j2eeType=JDBCDataSource,J2EEServer=
server1,Server=server1,version=7.0.0.0,type=DataSource,mbeanIdentifier=cells/Cell01/nodes/Node01/servers/server1/resources.xml#DataSource_1,
JDBCResource=Derby JDBC Provider,cell=Cell01,spec=1.0</was-wsdm:WAS_Resource_MRID>
					</wsa:ReferenceParameters>
					</wsrf-sg:MemberServiceEPR>
					<wsrf-sg:Content/>
					</wsrf-sg:Entry>
					</wsrf-rp:GetResourcePropertyResponse>
</env:Body>
</env:Envelope>

Request for concurrentRequests performance metrics from a servlet resource

This example shows how to request concurrentRequests metrics from a servlet resource. The resource that is of interest here is specified as reference parameters in the SOAP header. These parameters appear in bold font.

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
    <soap:Header>
        <wsa:To xmlns:wsa="http://www.w3.org/2005/08/addressing">http://test.ibm.com:8080/websphere-management/services/servlet</wsa:To>
        <wsa:Action xmlns:wsa="http://www.w3.org/2005/08/addressing">http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/
GetResourcePropertyRequest</wsa:Action>
        <wsa:MessageID xmlns:wsa="http://www.w3.org/2005/08/addressing">uuid:2737b4e1-31af-5b0d-cb6e-17e2c812ffbb</wsa:MessageID>
        <wsa:From xmlns:wsa="http://www.w3.org/2005/08/addressing">
        <wsa:Address>http://www.w3.org/2005/08/addressing/role/anonymous</wsa:Address>
        </wsa:From>
        <wsa-wsdm:WAS_Resource_ManagedNodeID xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter=
"true" xmlns:was-wsdm="http://ibm.com/2006/v1.3">
<was-wsdm:WAS_Resource_Type xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter="true" xmlns:was-wsdm=
"http://ibm.com/2006/v1.3">
        servlet</was-wsdm:WAS_Resource_Type>

<was-wsdm:WAS_Resource_MbeanIdentifier xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter="true"
 xmlns:was-wsdm="http://ibm.com/2006/v1.3">WebSphere:WebModule=WSDMUtil.war,name=ejb,process=server1,Application=
wsdm-util,platform=dynamicproxy,J2EEApplication=wsdm-util,node=Node01,J2EEName=wsdm-util#WSDMUtil.war#ejb,j2eeType=
Servlet,J2EEServer=server1,Server=server1,version=7.0.0.0,type=Servlet,mbeanIdentifier=wsdm-util#WSDMUtil.war#ejb,cell=
Cell01,spec=1.0</was-wsdm:WAS_Resource_MbeanIdentifier>

<was-wsdm:WAS_Resource_MRID xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter="true" xmlns:was-wsdm=
"http://ibm.com/2006/v1.3">servlet:WebSphere:WebModule=WSDMUtil.war,name=ejb,process=server1,Application=wsdm-util,platform=
dynamicproxy,J2EEApplication=wsdm-util,node=Node01,J2EEName=wsdm-util#WSDMUtil.war#ejb,j2eeType=Servlet,J2EEServer=server1,Server=
server1,version=7.0.0.0,type=Servlet,mbeanIdentifier=wsdm-util#WSDMUtil.war#ejb,cell=Cell01,spec=1.0</was-wsdm:WAS_Resource_MRID>
    
    <soap:Body>
<wsrf-rp:GetResourceProperty xmlns:wsrf-rp="http://docs.oasis-open.org/wsrf/rp-2" xmlns:servlet=
"http://www.ibm.com/xmlns/prod/websphere/management/j2ee/servlet">servlet:ConcurrentRequests</wsrf-rp:GetResourceProperty>
    </soap:Body>
		</soap:Envelope>

Number of concurrentRequests response

This example is the server response. The exact resource is identified in SOAP header and the metric is available in SOAP body.

<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope" 
xmlns:soapenc="http://www.w3.org/2003/05/soap-encoding" 
xmlns:wsa="http://www.w3.org/2005/08/addressing" 
xmlns:xsd="http://www.w3.org/20001/XMLSchema-instance">
<env:Header>
<wsa:To>http://www.w3.org/2005/08/addressing/role/anonymous</wsa:To>
<wsa:Action>http://docs.oasis-open.org/wsrf/rpw-2/GetResourceProperty/GetResourcePropertyResponse</wsa:Action>
<wsa:MessageID>uuid:91400c29-8c50-9f62-7df2-1bb0212083f1</wsa:MessageID>
<wsa:RelatesTo RelationshipType="wsa:Reply">uuid:2737b4e1-31af-5b0d-cb6e-17e2c812ffbb</wsa:RelatesTo>
<wsa:From>
<wsa:Address>http://test.ibm.com:8080/websphere-management/services/servlet</wsa:Address>
<wsa:ReferenceParameters>
<was-wsdm:WAS_Resource_ManagedNodID xmlns:was-wsdm="http://ibm.com/2006/v1.3" IsReferenceParameter="true"
<was-wsdm:WAS_Resource_Type xmlns:was-wsdm="http://ibm.com/2006/v1.3" IsReferenceParameter="true">servlet</was-wsdm:WAS_Resource_Type>
<was-wsdm:WAS_Resource_MbeanIdentifier xmlns:was-wsdm="http://ibm.com/2006/v1.3" IsReferenceParameter="true">
WebSphere:WebModule=WSDMUtil.war,name=ejb,process=server1,Application=wsdm-util,platform=dynamicproxy,J2EEApplication=wsdm-util,node=
Node01,J2EEName=wsdm-util#WSDMUtil.war#ejb,j2eeType=Servlet,J2EEServer=server1,Server=server1,version=7.0.0.0,type=
Servlet,mbeanIdentifier=wsdm-util#WSDMUtil.war#ejb,cell=Cell01,spec=1.0</was-wsdm:WAS_Resource_MbeanIdentifier>
<was-wsdm:WAS_Resource_MRID xmlns:was-wsdm="http://ibm.com/2006/v1.3" IsReferenceParameter="true">servlet:WebSphere:WebModule=
WSDMUtil.war,name=ejb,process=server1,Application=wsdm-util,platform=dynamicproxy,J2EEApplication=wsdm-util,node=Node01,J2EEName=
wsdm-util#WSDMUtil.war#ejb,j2eeType=Servlet,J2EEServer=server1,Server=server1,version=7.0.0.0,type=Servlet,mbeanIdentifier=
wsdm-util#WSDMUtil.war#ejb,cell=Cell01,spec=1.0</was-wsdm:WAS_Resource_MRID>
</wsa:ReferenceParameters>
</wsa:From>
<wsa:RelatesTo>uuid:2737b4e1-31af-5b0d-cb6e-17e2c812ffbb</wsa:RelatesTo>
</env:Header>
<env:Body>
<wsrf-rp:GetResourcePropertyResponse xmlns:wsrf-rp="http://docs.oasis-open.org/wsrf/rp-2"
<servlet:ConcurrentRequests 
xmlns:servlet="http://www.ibm.com/xmlns/prod/websphere/management/j2ee/servlet>11</servlet:ConcurrentRequests>
</wsrf-rp:GetResourcePropertyResponse>
</env:Body>
</env:Envelope>