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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