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Java example source code file (BootstrapServer.java)

This example Java source code file (BootstrapServer.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

bootstrapserver, file, initialservicesfile, localresolver, orb, orbinitialport, properties, resolver, runtimeexception, string, this, util

The BootstrapServer.java Java example source code

/*
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.corba.se.internal.CosNaming;

import java.util.Enumeration;
import java.util.Properties;

import java.io.File;
import java.io.FileInputStream;

import com.sun.corba.se.spi.orb.ORB ;

import com.sun.corba.se.spi.resolver.Resolver ;
import com.sun.corba.se.spi.resolver.LocalResolver ;
import com.sun.corba.se.spi.resolver.ResolverDefault ;

import com.sun.corba.se.impl.orbutil.CorbaResourceUtil;
import com.sun.corba.se.impl.orbutil.ORBConstants;

/**
 * Class BootstrapServer is the main entry point for the bootstrap server
 * implementation.  The BootstrapServer makes all object references
 * defined in a configurable file available using the old
 * naming bootstrap protocol.
 */
public class BootstrapServer
{
    private ORB orb;

     /**
     * Main startup routine for the bootstrap server.
     * It first determines the port on which to listen, checks that the
     * specified file is available, and then creates the resolver
     * that will be used to service the requests in the
     * BootstrapServerRequestDispatcher.
     * @param args the command-line arguments to the main program.
     */
    public static final void main(String[] args)
    {
        String propertiesFilename = null;
        int initialPort = ORBConstants.DEFAULT_INITIAL_PORT;

        // Process arguments
        for (int i=0;i<args.length;i++) {
            // Look for the filename
            if (args[i].equals("-InitialServicesFile") && i < args.length -1) {
                propertiesFilename = args[i+1];
            }

            // Was the initial port specified? If so, override
            // This property normally is applied for the client side
            // configuration of resolvers.  Here we are using it to
            // define the server port that the with which the resolvers
            // communicate.
            if (args[i].equals("-ORBInitialPort") && i < args.length-1) {
                initialPort = java.lang.Integer.parseInt(args[i+1]);
            }
        }

        if (propertiesFilename == null) {
            System.out.println( CorbaResourceUtil.getText("bootstrap.usage",
                "BootstrapServer"));
            return;
        }

        // Create a file
        File file = new File(propertiesFilename);

        // Verify that if it exists, it is readable
        if (file.exists() == true && file.canRead() == false) {
            System.err.println(CorbaResourceUtil.getText(
                "bootstrap.filenotreadable", file.getAbsolutePath()));
            return;
        }

        // Success: start up
        System.out.println(CorbaResourceUtil.getText(
            "bootstrap.success", Integer.toString(initialPort),
            file.getAbsolutePath()));

        Properties props = new Properties() ;

        // Use the SERVER_PORT to create an Acceptor using the
        // old legacy code in ORBConfiguratorImpl.  When (if?)
        // the legacy support is removed, this code will need
        // to create an Acceptor directly.
        props.put( ORBConstants.SERVER_PORT_PROPERTY,
            Integer.toString( initialPort ) ) ;

        ORB orb = (ORB) org.omg.CORBA.ORB.init(args,props);

        LocalResolver lres = orb.getLocalResolver() ;
        Resolver fres = ResolverDefault.makeFileResolver( orb, file ) ;
        Resolver cres = ResolverDefault.makeCompositeResolver( fres, lres ) ;
        LocalResolver sres = ResolverDefault.makeSplitLocalResolver( cres, lres ) ;

        orb.setLocalResolver( sres ) ;

        try {
            // This causes the acceptors to start listening.
            orb.resolve_initial_references(ORBConstants.ROOT_POA_NAME);
        } catch (org.omg.CORBA.ORBPackage.InvalidName e) {
            RuntimeException rte = new RuntimeException("This should not happen");
            rte.initCause(e);
            throw rte;
        }

        orb.run() ;
    }
}

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