Distributed OSGi Calculator Sample
==================================
This sample implements a distributed calculator using Distributed OSGi (RFC 119) over SCA.

The README in the samples directory (the directory above this) provides
general instructions about building and running samples. Take a look there
first.

On Windows, run
java -jar ..\..\modules\osgi-3.5.0-v20090520.jar -configuration ..\..\features\configuration -clean -console

On *Unix, run
java -jar ../../modules/osgi-3.5.0-v20090520.jar -configuration ../../features/configuration -clean -console

You should see the osgi console:

osgi>

osgi> Jun 22, 2009 1:32:27 PM org.apache.tuscany.sca.extensibility.equinox.EquinoxServiceDiscoveryActivator start
INFO: Equinox-based service discoverer is now configured.

You can run "ss" command under the osgi> to see the status of the bundles.
osgi> ss

Then you can install and start the calculator.dosgi bundle:

osgi> install file:./target/sample-dosgi-dynamic-calculator.jar
Bundle id is 198

osgi> start 198
Nov 4, 2009 5:20:21 PM calculator.dosgi.impl.CalculatorActivator start
INFO: Starting calculator.dosgi.dynamic_1.0.0 [198]
Nov 4, 2009 5:20:21 PM calculator.dosgi.impl.CalculatorActivator start
INFO: Registering calculator.dosgi.CalculatorService
Nov 4, 2009 5:20:21 PM org.apache.tuscany.sca.node.impl.NodeImpl start
INFO: Starting node: urn:osgi.service.d5a06834-ae15-42b3-9287-71fe6537c869 domai
n: tuscany.apache.org
log4j:WARN No appenders could be found for logger (org.apache.axiom.om.util.StAX
Utils).
log4j:WARN Please initialize the log4j system properly.
Nov 4, 2009 5:20:24 PM org.mortbay.log.Slf4jLog info
INFO: Logging to org.slf4j.impl.JDK14LoggerAdapter(org.mortbay.log) via org.mort
bay.log.Slf4jLog
Nov 4, 2009 5:20:25 PM org.apache.tuscany.sca.http.jetty.JettyLogger info
INFO: jetty-6.1.x
Nov 4, 2009 5:20:25 PM org.apache.tuscany.sca.http.jetty.JettyLogger info
INFO: Started SelectChannelConnector@0.0.0.0:8086
Nov 4, 2009 5:20:25 PM org.apache.tuscany.sca.http.jetty.JettyServer addServletM
apping
INFO: Added Servlet mapping: http://rfengt61p:8086/CalculatorService
Nov 4, 2009 5:20:25 PM org.apache.tuscany.sca.core.assembly.impl.EndpointRegistr
yImpl addEndpoint
INFO: Add endpoint - (@23394516)Endpoint:  URI = osgi.service.d5a06834-ae15-42b3
-9287-71fe6537c869#service-binding(CalculatorService/Calculator)
Nov 4, 2009 5:20:25 PM calculator.dosgi.impl.CalculatorActivator getBundle
INFO: calculator.dosgi.operations.AddService is loaded by bundle: calculator.dos
gi.dynamic

You can point your browser to http://localhost:8086/CalculatorService?wsdl to see
the WSDL.

You can also use the WebService Explorer from Eclipse WTP to test the Web Service.

To stop the bundle:

osgi> stop 198
Nov 4, 2009 5:21:16 PM org.apache.tuscany.sca.node.impl.NodeImpl stop
INFO: Stopping node: urn:osgi.service.d5a06834-ae15-42b3-9287-71fe6537c869
Nov 4, 2009 5:21:16 PM org.apache.tuscany.sca.core.assembly.impl.EndpointRegistr
yImpl endpointRemoved
INFO: Remove endpoint - (@23394516)Endpoint:  URI = osgi.service.d5a06834-ae15-4
2b3-9287-71fe6537c869#service-binding(CalculatorService/Calculator)
Nov 4, 2009 5:21:16 PM org.apache.tuscany.sca.http.jetty.JettyServer removeServl
etMapping
INFO: Removed Servlet mapping: /CalculatorService
Nov 4, 2009 5:21:16 PM calculator.dosgi.impl.CalculatorActivator stop
INFO: Stopping calculator.dosgi.dynamic_1.0.0 [198]
Nov 4, 2009 5:21:16 PM org.apache.tuscany.sca.node.impl.NodeImpl stop
INFO: Stopping node: urn:osgi.service.d5a06834-ae15-42b3-9287-71fe6537c869

To exit the console, run:
osgi> exit

Sample Overview
---------------
The application consists of two OSGi bundles:
 * The calculator bundle: It provides the calculator service. The service is implemented by a java class that
   consumes other services to perform the “add”, “subtract”, “multiply” and “divide” operations.
 * The operations bundle: It provides the add/subtract/multiply/divide services.
   (See ../samples/dosgi-dynamic-calculator-operations)


dosgi-dynamic-calculator/
  src/
    main/
      java/
        calculator/
            dosgi/
                CalculatorService.java  - The interface for Calculator service
                impl/
                    CalculatorActivator.java - OSGi bundle activator for Calculator bundle
                    CalculatorServiceDSImpl.java - OSGi declarative service based implementation
                    CalculatorServiceImpl.java - Basic OSGi implementation
                operations/
                    AddService.java - Interface for Add
                    SubtractService.java - Interface for Subtract
                    MultiplyService.java - Interface for Multiply
                    DivideService.java - Interface for Divide
                rmi/
                    OperationsRemote.java - RMI remote interface for operations
                    OperationsRMIServer_Stub.java - RMI stub
                    OperationsRMIServer.java - RMI server implementation of the operations
      resources/
            META-INF/
                sca-contribution.xml
            OSGI-INF/
                sca-config/
                    calculator-config.xml - The SCA configuration file for OSGi remote services
                remote-service/
                    calculator-service-descriptions.xml - The OSGi remote service endpoint descriptions    
  test/
    java/
        src/
            calculator/
                dosgi/
                    test/
                        CalculatorOSGiNodeTestCase.java - The JUNIT test case that tests this bundle against a RMI service

  META-INF/
    MANIFEST.MF - The OSGi manifest for this bundle
  dosig-calculator.png - a pictorial representation of the sample
  pom.xml                         - the Maven build file



Building And Running The Test Case Using Maven
-------------------------------------------
With either the binary or source distributions the sample can be built and run
using Maven as follows.

cd dosgi-calculator
mvn