Source Code Cross Referenced for SessionInfoPanel.java in  » Database-Client » squirrel-sql-2.6.5a » net » sourceforge » squirrel_sql » plugins » oracle » sessioninfo » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database Client » squirrel sql 2.6.5a » net.sourceforge.squirrel_sql.plugins.oracle.sessioninfo 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package net.sourceforge.squirrel_sql.plugins.oracle.sessioninfo;
002:
003:        /*
004:         * Copyright (C) 2004 Jason Height
005:         * jmheight@users.sourceforge.net
006:         *
007:         * This library is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU Lesser General Public
009:         * License as published by the Free Software Foundation; either
010:         * version 2.1 of the License, or (at your option) any later version.
011:         *
012:         * This library is distributed in the hope that it will be useful,
013:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:         * Lesser General Public License for more details.
016:         *
017:         * You should have received a copy of the GNU Lesser General Public
018:         * License along with this library; if not, write to the Free Software
019:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
020:         */
021:
022:        import java.awt.BorderLayout;
023:        import java.sql.Connection;
024:        import java.sql.PreparedStatement;
025:        import java.sql.ResultSet;
026:        import java.sql.SQLException;
027:        import java.util.Timer;
028:        import java.util.TimerTask;
029:
030:        import javax.swing.JPanel;
031:        import javax.swing.JScrollPane;
032:        import javax.swing.JTable;
033:        import javax.swing.table.DefaultTableModel;
034:
035:        import net.sourceforge.squirrel_sql.client.session.ISession;
036:        import net.sourceforge.squirrel_sql.fw.gui.GUIUtils;
037:        import net.sourceforge.squirrel_sql.fw.sql.SQLUtilities;
038:        import net.sourceforge.squirrel_sql.fw.util.log.ILogger;
039:        import net.sourceforge.squirrel_sql.fw.util.log.LoggerController;
040:        import net.sourceforge.squirrel_sql.plugins.oracle.OraclePlugin;
041:        import net.sourceforge.squirrel_sql.plugins.oracle.common.AutoWidthResizeTable;
042:
043:        public class SessionInfoPanel extends JPanel {
044:            private static final long serialVersionUID = 1L;
045:
046:            /**
047:             * Logger for this class.
048:             */
049:            private static final ILogger s_log = LoggerController
050:                    .createLogger(SessionInfoPanel.class);
051:
052:            //JMH Remove the current sql text. Create a tabbed pane for session details (including sql text)
053:            private static final String SESSION_INFO_SQL = "SELECT sess.Sid, "
054:                    + "     sess.serial#, "
055:                    + "     NVL(sess.username, bgproc.name), "
056:                    + "     sess.schemaname, "
057:                    + "     sess.status, "
058:                    + "     sess.server, "
059:                    + "     sess.osuser, "
060:                    + "     sess.machine, "
061:                    + "     sess.terminal, "
062:                    + "     sess.program, "
063:                    + "     sess.process, "
064:                    + "     sess.type, "
065:                    + "     sess.module, "
066:                    + "     sess.action, "
067:                    + "     sess.client_Info, "
068:                    + "     sess_io.block_gets, "
069:                    + "     sess_io.consistent_gets, "
070:                    + "     sess_io.physical_reads, "
071:                    + "     sess_io.block_changes, "
072:                    + "     sess_io.consistent_changes, "
073:                    + "     sess_stat.value*10, "
074:                    + "     sess.last_call_et, "
075:                    + "     d.sql_text, "
076:                    + "     sess.sql_address || ':' || sql_hash_value, "
077:                    + "     sess.prev_sql_addr || ':' || prev_hash_value, "
078:                    + "     sess.logon_time "
079:                    + "FROM v$session sess, "
080:                    + "     v$bgprocess bgproc,"
081:                    + "     v$sess_io sess_io, "
082:                    + "     v$sesstat sess_stat, "
083:                    + "     v$sql d "
084:                    + "WHERE sess.sid = sess_io.sid ( + ) "
085:                    + "  AND sess.sid = sess_stat.sid ( + ) "
086:                    + "  AND sess.paddr = bgproc.paddr ( + ) "
087:                    + "  AND ( sess_stat.statistic# = 12 OR sess_stat.statistic# IS NULL ) "
088:                    + "  AND sess.sql_address = d.address ( + ) "
089:                    + "  AND sess.sql_hash_value = d.hash_value ( + ) "
090:                    + "  AND ( d.child_number = 0 OR d.child_number IS NULL ) "
091:                    + "ORDER BY sess.sid ";
092:            //JMH: For additional performance we could utilise the fixed_table_sequence column
093:            //from the session, to investigate which rows need to be updated on a refresh
094:            //See V$SESSION doco for more info.
095:
096:            /**
097:             * Current session.
098:             */
099:            transient private ISession _session;
100:
101:            private AutoWidthResizeTable _sessionInfo;
102:            private boolean hasResized = false;
103:            transient private Timer _refreshTimer = new Timer(true);
104:
105:            private boolean _autoRefresh = false;
106:            private int _refreshPeriod = 10;
107:
108:            public class RefreshTimerTask extends TimerTask {
109:                public void run() {
110:                    populateSessionInfo();
111:                }
112:            }
113:
114:            /**
115:             * Ctor.
116:             *
117:             * @param autoRefeshPeriod
118:             * @param   session    Current session.
119:             * @throws IllegalArgumentException Thrown if a <TT>null</TT> <TT>ISession</TT> passed.
120:             */
121:            public SessionInfoPanel(ISession session, int autoRefeshPeriod) {
122:                super ();
123:                _session = session;
124:                _refreshPeriod = autoRefeshPeriod;
125:                createGUI();
126:            }
127:
128:            /**
129:             * Current session.
130:             */
131:            public ISession getSession() {
132:                return _session;
133:            }
134:
135:            private void resetTimer() {
136:                if (_refreshTimer != null) {
137:                    _refreshTimer.cancel();
138:                    //Nil out the timer so that it can be gc'd
139:                    _refreshTimer = null;
140:                }
141:                if (_autoRefresh && (_refreshPeriod > 0)) {
142:                    _refreshTimer = new Timer(true);
143:                    _refreshTimer.scheduleAtFixedRate(new RefreshTimerTask(),
144:                            _refreshPeriod * 1000, _refreshPeriod * 1000);
145:                }
146:            }
147:
148:            public void setAutoRefresh(boolean enable) {
149:                if (enable != _autoRefresh) {
150:                    _autoRefresh = enable;
151:                    resetTimer();
152:                }
153:            }
154:
155:            public boolean getAutoRefesh() {
156:                return _autoRefresh;
157:            }
158:
159:            public void setAutoRefreshPeriod(int seconds) {
160:                if (_refreshPeriod != seconds) {
161:                    _refreshPeriod = seconds;
162:                    resetTimer();
163:                }
164:            }
165:
166:            public int getAutoRefreshPeriod() {
167:                return _refreshPeriod;
168:            }
169:
170:            protected DefaultTableModel createTableModel() {
171:                DefaultTableModel tm = new DefaultTableModel();
172:                tm.addColumn("Sid");
173:                tm.addColumn("Serial #");
174:                tm.addColumn("Session Name");
175:                tm.addColumn("Schema");
176:                tm.addColumn("Status");
177:                tm.addColumn("Server");
178:                tm.addColumn("OS user");
179:                tm.addColumn("Machine");
180:                tm.addColumn("Terminal");
181:                tm.addColumn("Program");
182:                tm.addColumn("Process");
183:                tm.addColumn("Type");
184:                tm.addColumn("Module");
185:                tm.addColumn("Action");
186:                tm.addColumn("Client Info");
187:                tm.addColumn("Block Gets");
188:                tm.addColumn("Consistent Gets");
189:                tm.addColumn("Physical Reads");
190:                tm.addColumn("Block Changes");
191:                tm.addColumn("Consistent Changes");
192:                tm.addColumn("CPU time (ms)");
193:                tm.addColumn("Last SQL");
194:                tm.addColumn("Current SQL Statement");
195:                tm.addColumn("SQL Address");
196:                tm.addColumn("Prev SQL Address");
197:                tm.addColumn("Logon Time");
198:                return tm;
199:            }
200:
201:            public synchronized void populateSessionInfo() {
202:                if (!OraclePlugin.checkObjectAccessible(_session,
203:                        SESSION_INFO_SQL)) {
204:                    return;
205:                }
206:                PreparedStatement pstmt = null;
207:                ResultSet rs = null;
208:                try {
209:                    Connection con = _session.getSQLConnection()
210:                            .getConnection();
211:                    if (s_log.isDebugEnabled()) {
212:                        s_log.debug("populateSessionInfo: running sql - "
213:                                + SESSION_INFO_SQL);
214:                    }
215:                    pstmt = con.prepareStatement(SESSION_INFO_SQL);
216:                    rs = pstmt.executeQuery();
217:                    final DefaultTableModel tm = createTableModel();
218:                    while (rs.next()) {
219:                        String sid = rs.getString(1);
220:                        String serNum = rs.getString(2);
221:                        String sessionName = rs.getString(3);
222:                        String schema = rs.getString(4);
223:                        String status = rs.getString(5);
224:                        String server = rs.getString(6);
225:                        String OSusr = rs.getString(7);
226:                        String machine = rs.getString(8);
227:                        String terminal = rs.getString(9);
228:                        String program = rs.getString(10);
229:                        String process = rs.getString(11);
230:                        String type = rs.getString(12);
231:                        String module = rs.getString(13);
232:                        String action = rs.getString(14);
233:                        String clientInfo = rs.getString(15);
234:                        String blockGets = rs.getString(16);
235:                        String consistentGets = rs.getString(17);
236:                        String physReads = rs.getString(18);
237:                        String blockChanges = rs.getString(19);
238:                        String consistentChanges = rs.getString(20);
239:                        String CPUtime = rs.getString(21);
240:                        String lastSQL = rs.getString(22);
241:                        String currSQL = rs.getString(23);
242:                        String SQLaddr = rs.getString(24);
243:                        String prevSQLaddr = rs.getString(25);
244:                        String logonTime = rs.getString(26);
245:
246:                        //Should probably create my own table model but i am being a bit slack.
247:                        tm.addRow(new Object[] { sid, serNum, sessionName,
248:                                schema, status, server, OSusr, machine,
249:                                terminal, program, process, type, module,
250:                                action, clientInfo, blockGets, consistentGets,
251:                                physReads, blockChanges, consistentChanges,
252:                                CPUtime, lastSQL, currSQL, SQLaddr,
253:                                prevSQLaddr, logonTime });
254:                    }
255:                    updateTableModel(tm);
256:                } catch (SQLException ex) {
257:                    _session.showErrorMessage(ex);
258:                } finally {
259:                    SQLUtilities.closeResultSet(rs);
260:                    SQLUtilities.closeStatement(pstmt);
261:                }
262:            }
263:
264:            /**
265:             * Sets the specified updated TableModel using the EDT.
266:             * 
267:             * @param tm the TableModel to set.
268:             */
269:            private void updateTableModel(final DefaultTableModel tm) {
270:                GUIUtils.processOnSwingEventThread(new Runnable() {
271:                    public void run() {
272:                        _sessionInfo.setModel(tm);
273:                        if (!hasResized) {
274:                            //Only resize once.
275:                            hasResized = true;
276:                            _sessionInfo.resizeColumnWidth(300);
277:                        }
278:                    }
279:                });
280:            }
281:
282:            private void createGUI() {
283:                setLayout(new BorderLayout());
284:                _sessionInfo = new AutoWidthResizeTable(new DefaultTableModel());
285:                _sessionInfo.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
286:                add(new JScrollPane(_sessionInfo));
287:                populateSessionInfo();
288:            }
289:        }
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