Discovery

Discovering Platforms

HP WBEM Services for HP-UX listens for HTTP communication on port 5989 (for encrypted communication, the default behavior) or 5988 (for unencrypted communication). A client can attempt to connect to either of these ports to determine if a CIM Server is running.

Discovering namespaces

When a client can successfully issue requests to a system on which HP WBEM Services for HP-UX is running, it can determine what namespaces exist by performing an enumerateInstanceNames operation on a special class named __namespace (not case sensitive), specifying the root namespace in the operation. (Note that this functionality is deprecated by the DMTF, to be replaced by another mechanism, and support may be discontinued at some future date.) The following code fragment shows an example:

#include <Pegasus/Client/CIMClient.h>int main(){CIMClient c;Array<CIMObjectPath> namespaces;...namespaces = c.enumerateInstanceNames("root","__namespace");}

Discovering Classes

Once a namespace of interest has been identified, the process of discovering classes is straightforward. One can use the enumerateClassNames and enumerateClasses operations to retrieve subclasses of any class in the namespace. Specifying NULL for the class name will begin enumeration at the root level in the namespace. A value of true will return all derived classes. The CIM_ERR_INVALID_CLASS status will be returned if the specified class does not exist.

Thus, for a client to discover if schema of interest is supported on the target platform, it can perform enumerateClassNames operations for the classes that it would use. If the client is capable of using properties or methods in subclasses, the enumerateClasses operation can be used to obtain the properties and methods defined for the subclasses.