Source Code Cross Referenced for HomeHandleImpl.java in  » EJB-Server-JBoss-4.2.1 » server » org » jboss » proxy » ejb » handle » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » server » org.jboss.proxy.ejb.handle 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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.proxy.ejb.handle;
023:
024:        import javax.ejb.HomeHandle;
025:        import javax.ejb.EJBHome;
026:
027:        import javax.naming.InitialContext;
028:        import javax.naming.NamingException;
029:        import java.rmi.ServerException;
030:        import java.rmi.RemoteException;
031:        import java.io.ObjectStreamField;
032:        import java.io.ObjectInputStream;
033:        import java.io.IOException;
034:        import java.io.ObjectOutputStream;
035:        import java.util.Hashtable;
036:        import org.jboss.naming.NamingContextFactory;
037:
038:        /**
039:         * An EJB home handle implementation.
040:         *
041:         * @author  <a href="mailto:marc.fleury@jboss.org">Marc Fleury</a>.
042:         * @author Scott.Stark@jboss.org
043:         * @version $Revision: 57209 $
044:         */
045:        public class HomeHandleImpl implements  HomeHandle {
046:            // Constants -----------------------------------------------------
047:
048:            /** Serial Version Identifier. */
049:            static final long serialVersionUID = 208629381571948124L;
050:            /** The persistent field defintions */
051:            private static final ObjectStreamField[] serialPersistentFields = new ObjectStreamField[] {
052:                    new ObjectStreamField("jndiName", String.class),
053:                    new ObjectStreamField("jndiEnv", Hashtable.class) };
054:
055:            /** The JNDI name of the home inteface binding */
056:            private String jndiName;
057:            /** The JNDI env in effect when the home handle was created */
058:            private Hashtable jndiEnv;
059:
060:            // Static --------------------------------------------------------
061:
062:            // Constructors --------------------------------------------------
063:
064:            /**
065:             * Construct a <tt>HomeHandleImpl</tt>.
066:             *
067:             * @param jndiName      JNDI name.
068:             */
069:            public HomeHandleImpl(String jndiName) {
070:                this .jndiName = jndiName;
071:                this .jndiEnv = (Hashtable) NamingContextFactory.lastInitialContextEnv
072:                        .get();
073:            }
074:
075:            // Public --------------------------------------------------------
076:
077:            // Handle implementation -----------------------------------------
078:
079:            /**
080:             * HomeHandle implementation.
081:             *
082:             * @return  <tt>EJBHome</tt> reference.
083:             *
084:             * @throws ServerException    Could not get EJBObject.
085:             * @throws RemoteException
086:             */
087:            public EJBHome getEJBHome() throws RemoteException {
088:                try {
089:                    InitialContext ic = null;
090:                    if (jndiEnv != null)
091:                        ic = new InitialContext(jndiEnv);
092:                    else
093:                        ic = new InitialContext();
094:                    EJBHome home = (EJBHome) ic.lookup(jndiName);
095:                    return home;
096:                } catch (NamingException e) {
097:                    throw new ServerException("Could not get EJBHome", e);
098:                }
099:            }
100:
101:            /**
102:             * @return the jndi name
103:             */
104:            public String getJNDIName() {
105:                return jndiName;
106:            }
107:
108:            private void readObject(ObjectInputStream ois) throws IOException,
109:                    ClassNotFoundException {
110:                ObjectInputStream.GetField getField = ois.readFields();
111:                jndiName = (String) getField.get("jndiName", null);
112:                jndiEnv = (Hashtable) getField.get("jndiEnv", null);
113:            }
114:
115:            private void writeObject(ObjectOutputStream oos) throws IOException {
116:                ObjectOutputStream.PutField putField = oos.putFields();
117:                putField.put("jndiName", jndiName);
118:                putField.put("jndiEnv", jndiEnv);
119:                oos.writeFields();
120:            }
121:        }
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