WBEM Services. Jim Davis Sun Microsystems, Inc. June11, 2002

Transcription

1 WBEM Services Jim Davis Sun Microsystems, Inc. June11, 2002

2 Agenda Objectives Features Basic Architecture CIMOM Architecture & Integration Java WBEM API Developing Clients Developing Providers Get Involved! DMTF 2002 Developers' Conference June 10-13, 2002 Page 2

3 Objectives Open Source Implementation Provide complete support for WBEM on the Java platform Client & Server To have a Java VM-based platform be an effective environment for developing WBEM platform-independent applications and instrumentation WBEM enabled JVM DMTF 2002 Developers' Conference June 10-13, 2002 Page 3

4 Features API CIM, Client, Provider CIM Object Manager Client Protocol Adapter CIM-XML, CIM-RMI Provider Protocol Adapter Java, SBLIM CIM Repository DMTF 2002 Developers' Conference June 10-13, 2002 Page 4

5 More Features MOF Compiler MOF2XML MOF2Bean CIM Workshop Examples Documentation DMTF 2002 Developers' Conference June 10-13, 2002 Page 5

6 Basic Architecture Management application Java WBEM Client API XML/HTTP RMI CIM Object Manager CIM Repository Java Java WBEM Provider Interface SNMP Java/JNI... SNMP objects Native objects Other Objects DMTF 2002 Developers' Conference June 10-13, 2002 Page 6

7 CIMOM Integration CIM Client Client Protocol CIM-XML Adapters CIM-RMI Local Client Interface CIM-XML CIM Object Manager (CIMOM) Indication Delivery CIM-RMI Repository CIM Server Indication Handlers 1. Develop Security plugin - If not one for your platform 2. Configure Features - Client/Provider Protocols - Indication Support 3. Develop/Integrate Scripts -Startup - Shutdown Provider Protocol Adapters Provider Interface Security Java SBLIM Security PlugIn Provider(s) 4. Package JAR files & GO! Contribute back - New security plugin - Any bug fixes - Any Enhancements DMTF 2002 Developers' Conference June 10-13, 2002 Page 7

8 CIM API Java WBEM API Java mapping of the CIM meta-model Client API Extensible to allow additional protocol/security implementations Includes modules for CIM-XML & CIM-RMI Provider API Enables data retrieval from user defined modules DMTF 2002 Developers' Conference June 10-13, 2002 Page 8

9 CIM API The CIM API represents CIM in Java : CIMClass CIMInstance CIMProperty CIMValue CIMObjectPath CIMNameSpace CIMQualifier... DMTF 2002 Developers' Conference June 10-13, 2002 Page 9

10 Client API Aligned with the CIM Operations API support for all CIM Operations Overloaded methods for optional parameters API support for Event Subscription and Notification RI supports both CIM-XML and CIM-RMI DMTF 2002 Developers' Conference June 10-13, 2002 Page 10

11 Client API Protocol independent Architecture allows multiple protocol implementations Developer can choose protocol (runtime) Default protocol will be CIM-XML CIM Mapping to Java Beans Factory Pattern used for additional protocols DMTF 2002 Developers' Conference June 10-13, 2002 Page 11

12 Provider API Instance provider Supply instances of a given class Method provider Implements method invocation for classes Association provider Implements association traversal Event Provider Handles Event Subscription/Notification DMTF 2002 Developers' Conference June 10-13, 2002 Page 12

13 Developing Clients Steps for Developing Clients Connect to the CIM Server (CIM Object Manager) Use CIM classes locally Use Client API to manipulate remote information DMTF 2002 Developers' Conference June 10-13, 2002 Page 13

14 Simple Client Example Enumerate instances of process information... CIMNameSpace cns = new CIMNameSpace(hostName); CIMClient cc = new CIMClient(cns, principal, credential); CIMObjectPath op = new CIMObjectPath("CIM_Process"); Enumeration e = cc.enumerateinstances(op); while(e.hasmoreelements()) { System.out.println((CIMInstance)e.nextElement()); }... DMTF 2002 Developers' Conference June 10-13, 2002 Page 14

15 Developing Providers Steps for developing providers: 1 Model your managed element in CIM 2 Implement provider 3 Create MOF and compile it in (Can also be done programmatically) DMTF 2002 Developers' Conference June 10-13, 2002 Page 15

16 Instance providers must implement enuminstances(); getinstance(); setinstance(); deleteinstance(); createinstance(); execquery(); Developing Providers DMTF 2002 Developers' Conference June 10-13, 2002 Page 16

17 Developing Providers Method Providers must implement invokemethod(); Property Providers must implement getpropertyvalue(); setpropertyvalue(); Association Providers must implement associators() associatornames() references() referencenames() DMTF 2002 Developers' Conference June 10-13, 2002 Page 17

18 Event Providers must implement authorizefilter(); mustpoll(); activatefilter(); deactivatefilter(); Developing Providers DMTF 2002 Developers' Conference June 10-13, 2002 Page 18

19 Model Information Provider( SFLStatsProvider")] class SFL_Stats { [Key, Description("Name of the SFC EAST NFL Team") ] string Name; [Description("Wins")] uint32 Wins; [Description("Losses")] uint32 Losses; }; [Description("Method to determine average wins" " per season") ] uint32 getavgwinsperseason([[in]string Year); DMTF 2002 Developers' Conference June 10-13, 2002 Page 19

20 Implement Provider public class SFLStatsProvider implements InstanceProvider, MethodProvider { public void initialize(cimomhandle cimom) throws CIMException { } // store handle to cimom this.cimomhandle = (ProviderCIMOMHandle)cimom; // perform other initialization operations this.realtimestats = new RealTimeStats(); public void cleanup() { } } DMTF 2002 Developers' Conference June 10-13, 2002 Page 20

21 Implement Provider public CIMInstance getinstance(cimobjectpath op, CIMClass cc, boolean localonly) throws CIMException { } // create new instance from class template CIMInstance ci = cc.newinstance(); String teamname = null; // get keys from the object path for (Enumeration e = op.getkeys().elements(); e.hasmoreelements(); ) { CIMProperty cp = (CIMProperty)e.nextElement(); if (cp.getname().equalsignorecase(group_name)) { teamname = (String)((CIMValue)(cp.getValue())).getValue(); } } TeamStats stats = this.realtimestats.getstats(teamname); ci.setproperty("name", new CIMValue(teamName)); ci.setproperty("wins", new CIMValue(stats.getWins())); ci.setproperty("losses", new CIMValue(stats.getLosses())); return ci; DMTF 2002 Developers' Conference June 10-13, 2002 Page 21

22 Implement Provider public CIMValue invokemethod(cimobjectpath op, String methodname, Vector inparams, Vector outparams) throws CIMException { } String name = null; Enumeration e = op.getkeys().elements(); while (e.hasmoreelements()) { CIMProperty cp = (CIMProperty)e.nextElement(); if (cp.getname().equalsignorecase(group_name)) { name = (String)((CIMValue)(cp.getValue())).getValue(); } } if (methodname.equalsignorecase("getavgwinsperseason")) { CIMValue inval = (CIMValue)inParams.elementAt(0); String year = (String)inVal.getValue(); AvgStats avgstatobj = realtimestats.getavg(name, year); return (avgstatobj.getavgwins()); } else { throw new CIMException(CIMException.NO_SUCH_METHOD); } DMTF 2002 Developers' Conference June 10-13, 2002 Page 22

23 Get Involved! Hosted on Source Forge Bi-Weekly Teleconference onference Alias Contribute & Share DMTF 2002 Developers' Conference June 10-13, 2002 Page 23

24 For More Information WBEM Services Open Source es Solaris WBEM Services WBEMSource Java Community Process DMTF 2002 Developers' Conference June 10-13, 2002 Page 24

25 Q & A DMTF 2002 Developers' Conference June 10-13, 2002 Page 25