001: /*
002: * JBoss, Home of Professional Open Source.
003: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
004: * as indicated by the @author tags. See the copyright.txt file in the
005: * distribution for a full listing of individual contributors.
006: *
007: * This is free software; you can redistribute it and/or modify it
008: * under the terms of the GNU Lesser General Public License as
009: * published by the Free Software Foundation; either version 2.1 of
010: * the License, or (at your option) any later version.
011: *
012: * This software is distributed in the hope that it will be useful,
013: * but WITHOUT ANY WARRANTY; without even the implied warranty of
014: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015: * Lesser General Public License for more details.
016: *
017: * You should have received a copy of the GNU Lesser General Public
018: * License along with this software; if not, write to the Free
019: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021: */
022: package org.jboss.corba;
023:
024: import java.security.AccessController;
025: import java.security.PrivilegedAction;
026: import java.util.Hashtable;
027: import java.util.Properties;
028:
029: import org.jboss.logging.Logger;
030: import org.omg.CORBA.ORB;
031: import org.omg.PortableServer.POA;
032:
033: /**
034: * An object factory that creates an ORB on the client
035: *
036: * @author Adrian Brock (adrian@jboss.com)
037: * @version $Revision: 57209 $
038: */
039: public class ORBFactory {
040: // Constants -----------------------------------------------------
041:
042: /** The logger */
043: private static final Logger log = Logger
044: .getLogger(ORBFactory.class);
045:
046: /** The orb */
047: private static ORB orb;
048:
049: // Attributes ----------------------------------------------------
050:
051: // Static --------------------------------------------------------
052:
053: public static ORB getORB() {
054: synchronized (ORBFactory.class) {
055: if (orb == null) {
056: Properties properties;
057: try {
058: properties = (Properties) AccessController
059: .doPrivileged(new PrivilegedAction() {
060: public Object run() {
061: return System.getProperties();
062: }
063: });
064: } catch (SecurityException ignored) {
065: log.trace("Unable to retrieve system properties",
066: ignored);
067: properties = null;
068: }
069:
070: // Create the singleton ORB
071: orb = ORB.init(new String[0], properties);
072:
073: // Activate the root POA
074: try {
075: POA rootPOA = (POA) orb
076: .resolve_initial_references("RootPOA");
077: rootPOA.the_POAManager().activate();
078: } catch (Throwable t) {
079: log.warn("Unable to activate POA", t);
080: }
081: }
082: return orb;
083: }
084: }
085:
086: public static void setORB(ORB orb) {
087: if (ORBFactory.orb != null)
088: throw new IllegalStateException("ORB has already been set");
089: ORBFactory.orb = orb;
090: }
091:
092: // Constructors --------------------------------------------------
093:
094: // Public --------------------------------------------------------
095:
096: // Y overrides ---------------------------------------------------
097:
098: // Package protected ---------------------------------------------
099:
100: // Protected -----------------------------------------------------
101:
102: // Private -------------------------------------------------------
103:
104: // Inner classes -------------------------------------------------
105: }
|