Magercise: Run the Simple Stock Example

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In this Magercise, you will run a CORBA server and client that have been provided. Basically it tests the installation of your ORB.

This Magercise can be completed with either Sun's Java IDL ORB or Inprise's VisiBroker 3.x for Java.

Prerequisites

None.

Skeleton Code

• stockClient.jar
• stockServer.jar

Tasks

1. Download the Jar files for the client and the for the server. (See "Skeleton Code" above.)

To run the server you need to download the stockServer.jar file.

To run the client you need to download the stockServer.jar file.

2. Run the programs in the order given below:

run the server	java StockServer.theServer gii.ior
run the client	java StockClient.theClient gii.ior

Notes

Your classpath needs to include the jar file containing the StockServer or StockClient.

For VisiBroker you also need to include the files vbjorb.jar and vbjapp.jar on the classpath. Alternatively, you can use the vbj program to run your programs instead of using java directly. The vbj command adds the vbjorb.jar and vbjapp.jar files to the classpath appropriately and then invokes Java.

If you are using VisiBroker and Java 2, then you need to define the following system properties as well:

org.omg.CORBA.ORBClass=
   com.visigenic.vbroker.orb.ORB
org.omg.CORBA.ORBSingletonClass
   =com.visigenic.vbroker.orb.ORB

Where help exists, the task numbers above are linked to the step-by-step help page.

This Magercise has walked you through the steps of running a CORBA server and a CORBA client. In future excercises you will build your own CORBA programs and run them analogously.

Solution Source

To run the server you need to download the stockServer.jar file.

To run the client you need to download the stockServer.jar file.

• stockClient.jar
• stockServer.jar

Demonstration

When you start the server it should output:

Created GII:
IOR:000000000000001b49444c3a53746f636b4f626a6563
74732f53746f636b3a312e30000000000001000000000000
0034000100000000000d36393039636b6e39613234380000
049c00000018afabcafe00000002ee387de1000000080000
000000000000

The value of the IOR string will of course be different.

When you run the client it should output:

Global Industries Incorporated is currently selling at 28.0
Volume is 0

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