/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags.
* See the copyright.txt in the distribution for a full listing
* of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
/*
* Copyright (C) 2003, 2004
* Arjuna Technologies Limited
* Newcastle upon Tyne, UK
*
* $Id: HelloClient.java 2342 2006-03-30 13:06:17Z $
*/
package com.arjuna.demo.simple;
import com.arjuna.ats.jts.OTSManager;
import com.arjuna.orbportability.OA;
import com.arjuna.orbportability.ORB;
import com.arjuna.orbportability.RootOA;
import org.omg.CosTransactions.Current;
import org.omg.CosTransactions.HeuristicHazard;
import org.omg.CosTransactions.HeuristicMixed;
import org.omg.CosTransactions.NoTransaction;
import org.omg.CosTransactions.SubtransactionsUnavailable;
/**
* The <CODE>HelloClient</CODE> is used in the first stage of the JBoss Transactions product trailmap. It is a trivial
* JTS client application which invokes a remote method within the scope of a transaction.
*/
public class HelloClient
{
/**
* The client entry point. This runs a simple client application which connects to a <CODE>HelloImpl</CODE> and
* transactionally invokes it's service method.
*
* @param args These are not used by this application.
*/
public static void main(String[] args)
{
// 0. Define and create the ORB
// Define an ORB suitable for use by the JBoss Transactions product ORB portability layer.
ORB myORB = null;
// Define an object adapter suitable for use by the JBoss Transactions product ORB portability layer.
RootOA myOA = null;
try
{
// Initialize the ORB reference using the JBoss Transactions product ORB portability layer.
myORB = ORB.getInstance("ClientSide");
// Initialize the object adapter reference using the JBoss Transactions product ORB portability layer.
myOA = OA.getRootOA(myORB);
// Initialize the ORB using the JBoss Transactions product ORB portability layer.
myORB.initORB(args, null);
// Initialize the object adapter reference using the JBoss Transactions product ORB portability layer.
myOA.initOA();
}
catch (Exception e)
{
// The ORB has not been correctly configured!
// Display as much help as possible to the user track down the configuration problem
System.err.println("Trailmap Error: ORB Initialisation failed: " + e);
e.printStackTrace();
System.exit(0);
}
// 1. Obtain a reference to the HelloImpl CORBA representation inorder to be able to use it to transactionally
// invoke a method to validate the installation of the JBoss Transactions product
// Define the reference to invoke
Hello hello = null;
// Obtain the reference for hello
try
{
// Read the IOR from file
java.io.FileInputStream file = new java.io.FileInputStream("ObjectId");
java.io.InputStreamReader input = new java.io.InputStreamReader(file);
java.io.BufferedReader reader = new java.io.BufferedReader(input);
// This contains the IOR
String stringTarget = reader.readLine();
// Convert the IOR into a CORBA object
org.omg.CORBA.Object obj = myORB.orb().string_to_object(stringTarget);
// Narrow the object into an object implementing <CODE>Hello</CODE>
hello = HelloHelper.narrow(obj);
}
catch (java.io.IOException ioe)
{
// The IOR could not be read from file
// Display as much help as possible to the user track down the configuration problem
System.out.println("Trailmap Error: Could not read the IOR of the HelloImpl (from file ./ObjectId): " + ioe);
ioe.printStackTrace();
System.exit(0);
}
// 2. Transactionally use the Hello object
try
{
// Obtain a reference to the current transaction and begin it
System.out.println("Creating a transaction !");
Current current = OTSManager.get_current();
current.begin();
// Transactionally invoke the print_hello operation. This is purely to validate the installation of the product
System.out.println("Call the Hello Server !");
hello.print_hello();
// Complete the transaction normally
System.out.println("Commit transaction");
current.commit(false);
}
catch (SubtransactionsUnavailable subtransactionsUnavailable)
{
// Display as much help as possible to the user track down the configuration problem
System.err.println("Trailmap Error: Problem during begin: " + subtransactionsUnavailable);
subtransactionsUnavailable.printStackTrace();
System.exit(0);
}
catch (NoTransaction noTransaction)
{
// Display as much help as possible to the user track down the configuration problem
System.err.println("Trailmap Error: Problem during commit: " + noTransaction);
noTransaction.printStackTrace();
System.exit(0);
}
catch (HeuristicHazard heuristicHazard)
{
// Display as much help as possible to the user track down the configuration problem
System.err.println("Trailmap Error: Problem during commit: " + heuristicHazard);
heuristicHazard.printStackTrace();
System.exit(0);
}
catch (HeuristicMixed heuristicMixed)
{
// Display as much help as possible to the user track down the configuration problem
System.err.println("Trailmap Error: Problem during commit: " + heuristicMixed);
heuristicMixed.printStackTrace();
System.exit(0);
}
// 3. This indicates that the client was succesful in transactionally calling the Hello server program over
// CORBA
System.out.println("Done");
}
}