Source Code Cross Referenced for EJBSinkEJB.java in  » Workflow-Engines » wfmopen-2.1.1 » de » danet » an » util » log4j » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Workflow Engines » wfmopen 2.1.1 » de.danet.an.util.log4j 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * This file is part of the WfMOpen project.
003:         * Copyright (C) 2001-2003 Danet GmbH (www.danet.de), GS-AN.
004:         * All rights reserved.
005:         *
006:         * This program is free software; you can redistribute it and/or modify
007:         * it under the terms of the GNU General Public License as published by
008:         * the Free Software Foundation; either version 2 of the License, or
009:         * (at your option) any later version.
010:         *
011:         * This program 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
014:         * GNU General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU General Public License
017:         * along with this program; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
019:         * 
020:         * $Id: EJBSinkEJB.java,v 1.8 2006/10/07 20:41:34 mlipp Exp $
021:         *
022:         * $Log: EJBSinkEJB.java,v $
023:         * Revision 1.8  2006/10/07 20:41:34  mlipp
024:         * Merged J2EE 1.4 adaptions from test branch.
025:         *
026:         * Revision 1.7  2006/09/29 12:32:13  drmlipp
027:         * Consistently using WfMOpen as projct name now.
028:         *
029:         * Revision 1.6  2005/04/22 15:10:49  drmlipp
030:         * Merged changes from 1.3 branch up to 1.3p15.
031:         *
032:         * Revision 1.4.4.2  2005/04/13 16:14:06  drmlipp
033:         * Optimized db access.
034:         *
035:         * Revision 1.5  2005/04/08 11:28:03  drmlipp
036:         * Merged changes from 1.3 branch up to 1.3p6.
037:         *
038:         * Revision 1.4.4.1  2005/04/04 20:08:59  drmlipp
039:         * Changed WLS transaction isolation.
040:         *
041:         * Revision 1.4  2004/09/17 14:37:07  drmlipp
042:         * More properties for J2EESDK port.
043:         *
044:         * Revision 1.3  2004/09/10 12:44:28  drmlipp
045:         * Enabled call by reference for weblogic by default.
046:         *
047:         * Revision 1.2  2004/08/19 13:24:48  drmlipp
048:         * Fixed AVK errors and (many) warnings.
049:         *
050:         * Revision 1.1.1.6  2004/08/18 15:17:35  drmlipp
051:         * Update to 1.2
052:         *
053:         * Revision 1.22  2004/06/23 15:06:38  lipp
054:         * Started JOnAS port.
055:         *
056:         * Revision 1.21  2004/01/14 07:59:44  lipp
057:         * Added transaction isolation attribute for WLS.
058:         *
059:         * Revision 1.20  2003/10/01 14:20:22  lipp
060:         * Adjusted weblogic datasource name.
061:         *
062:         * Revision 1.19  2003/09/28 19:21:09  lipp
063:         * More improvements concerning security handling.
064:         *
065:         * Revision 1.18  2003/09/11 13:25:49  lipp
066:         * Improved naming scheme for symbolic role names.
067:         *
068:         * Revision 1.17  2003/09/03 15:24:17  lipp
069:         * Fixed view type specification.
070:         *
071:         * Revision 1.16  2003/08/22 13:05:04  lipp
072:         * Better data source name.
073:         *
074:         * Revision 1.15  2003/06/27 08:51:46  lipp
075:         * Fixed copyright/license information.
076:         *
077:         * Revision 1.14  2003/06/04 13:15:50  lipp
078:         * Optimized resource allocation/caching.
079:         *
080:         * Revision 1.13  2003/05/23 15:42:41  lipp
081:         * Fixed deployment unit dependencies.
082:         *
083:         * Revision 1.12  2003/01/15 17:36:13  robert
084:         * Workaround for NoSuchMethodError by LoggingEvent.getLevel
085:         *
086:         * Revision 1.11  2003/01/15 15:28:31  lipp
087:         * Added permissions.
088:         *
089:         * Revision 1.10  2003/01/14 11:53:44  robert
090:         * Rename column Timestamp of the table LogMessages to LogTime.
091:         *
092:         * Revision 1.9  2002/11/26 11:23:30  lipp
093:         * Modified RemoteException comment.
094:         *
095:         * Revision 1.8  2002/11/15 15:15:37  montag
096:         * Generation of EJBSink-Classes and -DD with xdoclet.
097:         *
098:         * Revision 1.7  2002/09/04 06:57:37  lipp
099:         * Now using JBoss-3.0
100:         *
101:         * Revision 1.6  2002/01/11 09:30:59  robert
102:         * rename table ErrorLog to LogMessages
103:         *
104:         * Revision 1.5  2002/01/10 10:19:09  robert
105:         * resumes database connection on connection failed.
106:         *
107:         * Revision 1.4  2002/01/09 17:18:48  robert
108:         * add NDC to the SQL Statement
109:         *
110:         * Revision 1.3  2002/01/09 15:44:54  robert
111:         * modify the SQL Statement
112:         *
113:         * Revision 1.2  2002/01/09 09:59:13  robert
114:         * javadoc
115:         *
116:         * Revision 1.1  2002/01/09 09:21:14  robert
117:         * new EJB for EJBAppender
118:         *
119:         *
120:         */
121:        package de.danet.an.util.log4j;
122:
123:        import java.sql.Connection;
124:        import java.sql.PreparedStatement;
125:        import java.sql.SQLException;
126:
127:        import javax.ejb.CreateException;
128:        import javax.ejb.EJBException;
129:        import javax.ejb.SessionBean;
130:        import javax.ejb.SessionContext;
131:        import javax.naming.NamingException;
132:        import javax.sql.DataSource;
133:
134:        import org.apache.log4j.spi.LoggingEvent;
135:
136:        import de.danet.an.util.JDBCUtil;
137:        import de.danet.an.util.UniversalPrepStmt;
138:
139:        /**
140:         * This session EJB provides the server side part of the
141:         * {@link de.danet.an.util.log4j.EJBAppender}.
142:         *
143:         * @ejbHome <{de.danet.an.util.log4j.EJBSinkHome}>
144:         * @ejbRemote <{de.danet.an.util.log4j.EJBSink}>
145:         * @see de.danet.an.util.log4j
146:         * 
147:         * @ejb.bean name="EJBSink" display-name="EJBSink"
148:         * jndi-name="ejb/@@@_Utility-EJBs_EJBSinkEJB_JNDI_Name_@@@"
149:         * type="Stateless" transaction-type="Container" view-type="remote"
150:         * @jonas.bean ejb-name="EJBSink"
151:         * @ejb.home remote-class="de.danet.an.util.log4j.EJBSinkHome"
152:         * @ejb.interface remote-class="de.danet.an.util.log4j.EJBSink"
153:         * @ejb.resource-ref res-ref-name="jdbc/Logging" 
154:         * res-type="javax.sql.DataSource" res-auth="Container"
155:         * jndi-name="DefaultDS"
156:         * @jonas.resource res-ref-name="jdbc/Logging" jndi-name="jdbc_1"
157:         * @weblogic.enable-call-by-reference True
158:         * @weblogic.resource-description res-ref-name="jdbc/Logging"
159:         * jndi-name="DefaultDS"
160:         * @weblogic.transaction-isolation TRANSACTION_READ_COMMITTED
161:         */
162:        public class EJBSinkEJB implements  SessionBean {
163:
164:            /** The SessionContext interface of the instance. */
165:            private SessionContext ctx;
166:
167:            /**
168:             * The data source of the database.
169:             * @see javax.sql.DataSource
170:             */
171:            private DataSource ds = null;
172:
173:            /** Database attributes */
174:            private static final String DB_NAME = "java:comp/env/jdbc/Logging";
175:
176:            /**
177:             * Set the session context.
178:             * @param context session context
179:             * @throws EJBException if error
180:             */
181:            public void setSessionContext(SessionContext context)
182:                    throws EJBException {
183:                ctx = context;
184:                try {
185:                    ds = JDBCUtil.refreshDS(null, DB_NAME);
186:                } catch (NamingException ne) {
187:                    throw new EJBException(ne);
188:                }
189:            }
190:
191:            /**
192:             * Not called for stateless session beans.
193:             * @see javax.ejb.SessionBean
194:             */
195:            public void ejbActivate() throws EJBException {
196:            }
197:
198:            /**
199:             * Not called for stateless session beans.
200:             * @see javax.ejb.SessionBean
201:             */
202:            public void ejbPassivate() throws EJBException {
203:            }
204:
205:            /**
206:             * A container invokes this method before it ends the life of the session 
207:             * object. This happens as a result of a client's invoking a remove 
208:             * operation, or when a container decides to terminate the session object 
209:             * after a timeout.
210:             * @see javax.ejb.SessionBean
211:             */
212:            public void ejbRemove() {
213:                ds = null;
214:                ctx = null;
215:            }
216:
217:            /**
218:             * Create a new instance of the EJBSinkEJB.
219:             * 
220:             * @throws CreateException if the EJB cannot be create.
221:             */
222:            public void ejbCreate() throws CreateException {
223:
224:            }
225:
226:            /**
227:             * Insert the event information into the database.
228:             * @param event the event including the message to be logged.
229:             * @ejb.interface-method
230:             * @ejb.transaction
231:             * type="RequiresNew"
232:             */
233:            public void append(LoggingEvent event) {
234:                Connection con = null;
235:                PreparedStatement prepStmt = null;
236:                try {
237:                    con = ds.getConnection();
238:                    prepStmt = new UniversalPrepStmt(
239:                            ds,
240:                            con,
241:                            "INSERT INTO LogMessages "
242:                                    + "(Prio, Message, Category, Thread, NDC, LogTime) "
243:                                    + "VALUES (?, ?, ?, ?, ?, ?)");
244:                    int offset = 1;
245:                    prepStmt.setString(offset++, "INFO");
246:                    //event.getLevel().toString());//'INFO'
247:                    prepStmt.setString(offset++, event.getRenderedMessage());
248:                    prepStmt.setString(offset++, event.categoryName);//'log4j.Basic'
249:                    prepStmt.setString(offset++, event.getThreadName());//'main'
250:                    prepStmt.setString(offset++, event.getNDC());//NDC
251:                    prepStmt.setTimestamp(offset++, new java.sql.Timestamp(
252:                            event.timeStamp));
253:                    prepStmt.executeUpdate();
254:                } catch (SQLException se) {
255:                    throw new EJBException(se);
256:                } finally {
257:                    try {
258:                        JDBCUtil.closeAll(null, prepStmt, con);
259:                    } catch (SQLException e) {
260:                        // errors in loggers, that's difficult, we don't want loops...
261:                        System.err.println("Problem in EJBSinkEJB: "
262:                                + e.getMessage());
263:                        e.printStackTrace();
264:                    }
265:                }
266:            }
267:
268:            /**
269:             * Prepared the database connection and the PreparedStatement
270:             * for the database access.
271:             */
272:            private void prepareDatabaseConnection() throws SQLException {
273:            }
274:
275:        }
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