01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.resource.adapter.jdbc.remote;
23:
24: import java.rmi.server.UID;
25: import java.util.Hashtable;
26: import java.io.ByteArrayInputStream;
27: import java.io.ObjectInputStream;
28: import javax.naming.spi.ObjectFactory;
29: import javax.naming.Name;
30: import javax.naming.Context;
31: import javax.naming.Reference;
32: import javax.naming.BinaryRefAddr;
33: import javax.naming.StringRefAddr;
34: import org.jboss.util.naming.NonSerializableFactory;
35:
36: /** A JNDI ObjectFactory for handling either the local or remote access to
37: * a JCA javax.sql.DataSource binding.
38: *
39: * @author Scott.Stark@jboss.org
40: * @version $Revision: 57189 $
41: */
42: public class DataSourceFactory implements ObjectFactory {
43: /** The class VM ID */
44: public static final UID vmID = new UID();
45:
46: public Object getObjectInstance(Object obj, Name name, Context ctx,
47: Hashtable env) throws Exception {
48: Object instance = null;
49: if (obj instanceof Reference) {
50: Reference ref = (Reference) obj;
51: // Check the local id
52: BinaryRefAddr localID = (BinaryRefAddr) ref.get("VMID");
53: byte[] idBytes = (byte[]) localID.getContent();
54: ByteArrayInputStream bais = new ByteArrayInputStream(
55: idBytes);
56: ObjectInputStream ois = new ObjectInputStream(bais);
57: UID id = (UID) ois.readObject();
58: if (id.equals(vmID) == true) {
59: // Use the local datasource
60: StringRefAddr jndiAddr = (StringRefAddr) ref
61: .get("JndiName");
62: String jndiName = (String) jndiAddr.getContent();
63: instance = NonSerializableFactory.lookup(jndiName);
64: } else {
65: // Use the embedded proxy
66: BinaryRefAddr proxyAddr = (BinaryRefAddr) ref
67: .get("ProxyData");
68: byte[] proxyBytes = (byte[]) proxyAddr.getContent();
69: ByteArrayInputStream bais2 = new ByteArrayInputStream(
70: proxyBytes);
71: ObjectInputStream ois2 = new ObjectInputStream(bais2);
72: instance = ois2.readObject();
73: }
74: }
75: return instance;
76: }
77:
78: }
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