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.proxy.ejb;
23:
24: import java.lang.reflect.Method;
25: import java.rmi.RemoteException;
26:
27: import javax.transaction.Transaction;
28:
29: import org.jboss.ejb.plugins.AbstractInterceptor;
30: import org.jboss.invocation.Invocation;
31: import org.jboss.invocation.InvocationType;
32: import org.jboss.metadata.BeanMetaData;
33: import org.jboss.metadata.MetaData;
34:
35: /**
36: * A NoTxPropagationInterceptor for throwing remote exceptions
37: * according to the spec.
38: *
39: * @author <a href="adrian@jboss.com">Adrian Brock</a>
40: * @version $Revision: 57194 $
41: */
42: public class NoTxPropagationInterceptor extends AbstractInterceptor {
43:
44: public Object invokeHome(Invocation mi) throws Exception {
45: checkNoTxPropagation(mi);
46: return getNext().invokeHome(mi);
47: }
48:
49: public Object invoke(Invocation mi) throws Exception {
50: checkNoTxPropagation(mi);
51: return getNext().invoke(mi);
52: }
53:
54: protected void checkNoTxPropagation(Invocation mi) throws Exception {
55: // No problem for local
56: if (mi.isLocal())
57: return;
58:
59: // Do we have a foreign transaction context?
60: Transaction tx = mi.getTransaction();
61: if (tx == null || (tx instanceof ForeignTransaction) == false)
62: return;
63:
64: byte txType = container.getBeanMetaData().getTransactionMethod(
65: mi.getMethod(), mi.getType());
66: if (txType != MetaData.TX_NOT_SUPPORTED
67: && txType != MetaData.TX_REQUIRES_NEW)
68: throw new RemoteException(
69: "TxPropagation is not supported: "
70: + container.getJmxName() + " method="
71: + mi.getMethod());
72:
73: // The propogation is not a problem
74: mi.setTransaction(null);
75: }
76: }
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