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Sun WBEM SDK Developer's Guide

The Method Provider Interface (MethodProvider)

The following table describes the method in the Method Provider interface.

Table 5–4 MethodProvider Interface Methods

Method 

Description 

CIMValue invokeMethod(CIMObjectPath op, String methodName, Vector inParams, Vector outParams)

The CIM Object Manager calls this method when methodName in the instance referred to by op is invoked..

inParams is a vector of CIMValues that are input parameters to the invoked method. outParams is a vector of CIMValues that are output parameters from the invoked method.

Example — Implementing a Method Provider

The code segment in Example 5–3 creates a Solaris provider class that routes requests to execute methods from the CIM Object Manager to one or more specialized providers. These specialized providers service requests for dynamic data for a particular type of Solaris object. For example, the Solaris_Package provider services requests to execute methods in the Solaris_Package class.

The method provider in this example implements a single method invokeMethod that calls the appropriate provider to perform one of following operations:

Example 5–3 Implementing a Method Provider

...
public class Solaris implements MethodProvider {
    public void initialize(CIMONHandle, ch) throws CIMException {
    }
    public void cleanup() throws CIMException {
    }
    public CIMValue invokeMethod(CIMObjectPath op, String methodName, 
            Vector inParams, Vector outParams) throws CIMException {
        if (op.getObjectName().equalsIgnoreCase("solaris_computersystem")) {
            Solaris_ComputerSystem sp = new Solaris_ComputerSystem();
            if (methodName.equalsIgnoreCase("reboot")) {
                return new CIMValue (sp.Reboot());
            }
        }
        if (op.getObjectName().equalsIgnoreCase("solaris_operatingsystem")) {
            Solaris_OperatingSystem sos = new Solaris_OperatingSystem();
            if (methodName.equalsIgnoreCase("reboot")) {
                return new CIMValue (sos.Reboot());
            }
            if (methodName.equalsIgnoreCase("shutdown")) {
                return new CIMValue (sos.Shutdown());
            }
        }
        if (op.getObjectName().equalsIgnoreCase("solaris_serialport")) {
            Solaris_SerialPort ser = new Solaris_SerialPort();
            if (methodName.equalsIgnoreCase("disableportservice")) {
                return new CIMValue (ser.DeletePort(op));
            }
        }
        return null;
    }
}
...