Source Code Cross Referenced for AbsDBServiceImpl.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » db » 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.db 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * JOnAS: Java(TM) Open Application Server
003:         * Copyright (C) 2004 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:         * Initial developer(s): Florent BENOIT
022:         * --------------------------------------------------------------------------
023:         * $Id: AbsDBServiceImpl.java 9618 2006-09-21 11:27:49Z benoitf $
024:         * --------------------------------------------------------------------------
025:         */package org.objectweb.jonas.db;
026:
027:        import java.util.ArrayList;
028:        import java.util.List;
029:        import java.util.StringTokenizer;
030:
031:        import javax.naming.Context;
032:        import javax.naming.NamingException;
033:
034:        import org.objectweb.jonas.common.Log;
035:        import org.objectweb.jonas.service.AbsServiceImpl;
036:        import org.objectweb.jonas.service.ServiceException;
037:        import org.objectweb.util.monolog.api.BasicLevel;
038:        import org.objectweb.util.monolog.api.Logger;
039:
040:        /**
041:         * Abstract database service to be implemented by implementation of Java
042:         * databases
043:         * @author Florent Benoit
044:         */
045:        public abstract class AbsDBServiceImpl extends AbsServiceImpl {
046:
047:            /**
048:             * Property for the port number
049:             */
050:            private static final String PORT_NUMBER = "port";
051:
052:            /**
053:             * Property for the name of the database
054:             */
055:            private static final String DATABASE_NAME = "dbname";
056:
057:            /**
058:             * Property for the default database name
059:             */
060:            private static final String DEFAULT_DATABASE_NAME = "db_jonas";
061:
062:            /**
063:             * Property for looking up users (suffix by 1..n)
064:             */
065:            private static final String USERS = "user";
066:
067:            /**
068:             * Logger used by this service
069:             */
070:            private static Logger logger = null;
071:
072:            /**
073:             * Initialize the service.
074:             * @param ctx the configuration context of the service.
075:             * @throws ServiceException if the initialization failed.
076:             */
077:
078:            protected void doInit(Context ctx) throws ServiceException {
079:                logger = Log.getLogger(Log.JONAS_DB_PREFIX);
080:
081:                // Lookup port number
082:                String port = null;
083:                try {
084:                    port = (String) ctx.lookup(PORT_NUMBER);
085:                } catch (NamingException ne) {
086:                    logger
087:                            .log(BasicLevel.INFO,
088:                                    "Use the default port as the property is missing in jonas.properties file");
089:                }
090:
091:                // Database name
092:                String databaseName = null;
093:                try {
094:                    databaseName = (String) ctx.lookup(DATABASE_NAME);
095:                } catch (NamingException ne) {
096:                    logger
097:                            .log(
098:                                    BasicLevel.INFO,
099:                                    "Use the default databsename '"
100:                                            + DEFAULT_DATABASE_NAME
101:                                            + "' as the property is missing in jonas.properties file.");
102:                    databaseName = DEFAULT_DATABASE_NAME;
103:                }
104:
105:                // Users
106:                List users = new ArrayList();
107:                boolean hasUsers = true;
108:                int i = 1;
109:                while (hasUsers) {
110:                    try {
111:                        String usernameAndPass = (String) ctx.lookup(USERS + i);
112:                        if (logger.isLoggable(BasicLevel.DEBUG)) {
113:                            logger.log(BasicLevel.DEBUG,
114:                                    "Adding user/password '" + usernameAndPass
115:                                            + "'.");
116:                        }
117:
118:                        StringTokenizer st = new StringTokenizer(
119:                                usernameAndPass, ":");
120:                        String name = st.nextToken();
121:                        String pass = "";
122:                        if (st.hasMoreTokens()) {
123:                            pass = st.nextToken();
124:                        }
125:                        users.add(new User(name, pass));
126:                    } catch (NamingException ne) {
127:                        if (logger.isLoggable(BasicLevel.DEBUG)) {
128:                            logger.log(BasicLevel.DEBUG,
129:                                    "No more users (length =" + i + ").");
130:                        }
131:                        hasUsers = false;
132:                    }
133:                    i++;
134:                }
135:
136:                initServer(users, databaseName, port);
137:            }
138:
139:            /**
140:             * Create a database with the specified arguments. Need to be implemented by
141:             * classes extending this one.
142:             * @param users user/password (separated by a ":")
143:             * @param databaseName name of the database
144:             * @param portNumber port number of the database
145:             */
146:            protected abstract void initServer(List users, String databaseName,
147:                    String portNumber);
148:
149:            /**
150:             * Start the service.
151:             * @throws ServiceException if the startup failed.
152:             */
153:            protected void doStart() throws ServiceException {
154:                if (logger.isLoggable(BasicLevel.DEBUG)) {
155:                    logger.log(BasicLevel.DEBUG, "");
156:                }
157:            }
158:
159:            /**
160:             * Stop the service.
161:             * @throws ServiceException if the stop failed.
162:             */
163:            protected void doStop() throws ServiceException {
164:                if (logger.isLoggable(BasicLevel.DEBUG)) {
165:                    logger.log(BasicLevel.DEBUG, "");
166:                }
167:            }
168:
169:            /**
170:             * @return the logger.
171:             */
172:            public static Logger getLogger() {
173:                return logger;
174:            }
175:        }
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