Source Code Cross Referenced for RMEImpl.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » resource » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » JOnAS 4.8.6 » org.objectweb.jonas.resource 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * JOnAS: Java(TM) Open Application Server
003:         * Copyright (C) 1999 Bull S.A.
004:         * Contact: jonas-team@objectweb.org
005:         *
006:         * This library is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License as published by the Free Software Foundation; either
009:         * version 2.1 of the License, or any later version.
010:         *
011:         * This library is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         * Lesser General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU Lesser General Public
017:         * License along with this library; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
019:         * USA
020:         *
021:         * --------------------------------------------------------------------------
022:         * $Id: RMEImpl.java 6661 2005-04-28 08:43:27Z benoitf $
023:         * --------------------------------------------------------------------------
024:         */
025:
026:        package org.objectweb.jonas.resource;
027:
028:        import javax.resource.ResourceException;
029:        import javax.transaction.Transaction;
030:        import javax.transaction.RollbackException;
031:        import javax.transaction.SystemException;
032:        import org.objectweb.transaction.jta.ResourceManagerEvent;
033:        import org.objectweb.util.monolog.api.BasicLevel;
034:        import org.objectweb.util.monolog.api.Logger;
035:
036:        /**
037:         *  This class implements ResourceManagerEvent. An instance of this object is
038:         *  also an event transmited by the Resource adapter manager to the user
039:         *  transaction. This event is linked to a ManagedConnection, more exatcly this
040:         *  implementation is linked to MCInfo instance.
041:         *
042:         *@author     sebastien.chassande@inrialpes.fr
043:         */
044:        class RMEImpl implements  ResourceManagerEvent {
045:            /**
046:             *  The MCInfo instance which represents the physical connection
047:             */
048:            private MCInfo mci = null;
049:            /**
050:             *  The Logger instance where messages are written.
051:             */
052:            private Logger trace = null;
053:            /**
054:             *  Set if the RME is valid to call enlist Resource
055:             *  Issue with JOTM and one thread calling ConnectionOpened, but a
056:             *   different thread calling Closed or Error and not enough information
057:             *   in JOTM to keep information straight.
058:             */
059:            protected boolean isValid = false;
060:
061:            /**
062:             *  This constructor permits to specify the MCInfp corresponding to the
063:             *  ManagedConnection (the physical connection).
064:             *
065:             * @param mci MCInfo
066:             * @param trace Logger
067:             */
068:            public RMEImpl(MCInfo mci, Logger trace) {
069:                this .mci = mci;
070:                this .trace = trace;
071:            }
072:
073:            /**
074:             * Check if equals
075:             * @param o Object to test equality
076:             * @return boolean if RMEImpl objets are equal
077:             */
078:            public boolean equals(Object o) {
079:                return (o instanceof  RMEImpl) && mci.equals(((RMEImpl) o).mci);
080:            }
081:
082:            /**
083:             *  This method is in charge of the enlisting of the managedConnection linked
084:             *  to this instance, in the transaction specified in parameter.
085:             * @param tx TransactionConnection
086:             * @throws SystemException if an Exception occurs
087:             */
088:            public void enlistConnection(Transaction tx) throws SystemException {
089:                try {
090:                    if (isValid) {
091:                        if (trace.isLoggable(BasicLevel.DEBUG)) {
092:                            trace.log(BasicLevel.DEBUG,
093:                                    "Enlist the XA Resource "
094:                                            + mci.getXAResource() + " in Tx:"
095:                                            + tx);
096:                        }
097:                        tx.enlistResource(mci.getXAResource());
098:                    }
099:                } catch (RollbackException rbe) {
100:                    throw new SystemException(rbe.getMessage());
101:                } catch (ResourceException re) {
102:                    throw new SystemException(re.getMessage());
103:                }
104:            }
105:        }
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