Source Code Cross Referenced for Database.java in  » Database-DBMS » h2database » org » h2 » test » bench » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » h2database » org.h2.test.bench 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2004-2008 H2 Group. Licensed under the H2 License, Version 1.0
003:         * (license2)
004:         * Initial Developer: H2 Group
005:         */
006:        package org.h2.test.bench;
007:
008:        import java.io.PrintWriter;
009:        import java.lang.reflect.Method;
010:        import java.sql.Connection;
011:        import java.sql.DriverManager;
012:        import java.sql.PreparedStatement;
013:        import java.sql.ResultSet;
014:        import java.sql.ResultSetMetaData;
015:        import java.sql.Statement;
016:        import java.util.ArrayList;
017:        import java.util.Iterator;
018:        import java.util.Properties;
019:        import java.util.Random;
020:        import java.util.StringTokenizer;
021:
022:        import org.h2.test.TestBase;
023:        import org.h2.tools.Server;
024:        import org.h2.util.JdbcUtils;
025:        import org.h2.util.StringUtils;
026:
027:        /**
028:         * Represents a database in the benchmark test application.
029:         */
030:        class Database {
031:
032:            private TestPerformance test;
033:            private int id;
034:            private String name, url, user, password;
035:            private ArrayList replace = new ArrayList();
036:            private String action;
037:            private long startTime;
038:            private Connection conn;
039:            private Statement stat;
040:            private boolean trace = true;
041:            private long lastTrace;
042:            private Random random = new Random(1);
043:            private ArrayList results = new ArrayList();
044:            private int totalTime;
045:            private int executedStatements;
046:
047:            private Server serverH2;
048:            private Object serverDerby;
049:            private boolean serverHSQLDB;
050:
051:            String getName() {
052:                return name;
053:            }
054:
055:            int getTotalTime() {
056:                return totalTime;
057:            }
058:
059:            ArrayList getResults() {
060:                return results;
061:            }
062:
063:            Random getRandom() {
064:                return random;
065:            }
066:
067:            void startServer() throws Exception {
068:                if (url.startsWith("jdbc:h2:tcp:")) {
069:                    serverH2 = Server.createTcpServer(new String[0]).start();
070:                    Thread.sleep(100);
071:                } else if (url.startsWith("jdbc:derby://")) {
072:                    serverDerby = Class.forName(
073:                            "org.apache.derby.drda.NetworkServerControl")
074:                            .newInstance();
075:                    Method m = serverDerby.getClass().getMethod("start",
076:                            new Class[] { PrintWriter.class });
077:                    m.invoke(serverDerby, new Object[] { null });
078:                    // serverDerby = new NetworkServerControl();
079:                    // serverDerby.start(null);
080:                    Thread.sleep(100);
081:                } else if (url.startsWith("jdbc:hsqldb:hsql:")) {
082:                    if (!serverHSQLDB) {
083:                        Class c = Class.forName("org.hsqldb.Server");
084:                        Method m = c.getMethod("main",
085:                                new Class[] { String[].class });
086:                        m.invoke(null, new Object[] { new String[] {
087:                                "-database.0",
088:                                "data/mydb;hsqldb.default_table_type=cached",
089:                                "-dbname.0", "xdb" } });
090:                        // org.hsqldb.Server.main(new String[]{"-database.0", "mydb",
091:                        // "-dbname.0", "xdb"});
092:                        serverHSQLDB = true;
093:                        Thread.sleep(100);
094:                    }
095:                }
096:            }
097:
098:            void stopServer() throws Exception {
099:                if (serverH2 != null) {
100:                    serverH2.stop();
101:                    serverH2 = null;
102:                }
103:                if (serverDerby != null) {
104:                    Method m = serverDerby.getClass().getMethod("shutdown",
105:                            new Class[] {});
106:                    // cast for JDK 1.5
107:                    m.invoke(serverDerby, (Object[]) null);
108:                    // serverDerby.shutdown();
109:                    serverDerby = null;
110:                } else if (serverHSQLDB) {
111:                    // can not shut down (shutdown calls System.exit)
112:                    // openConnection();
113:                    // update("SHUTDOWN");
114:                    // closeConnection();
115:                    // serverHSQLDB = false;
116:                }
117:            }
118:
119:            static Database parse(TestPerformance test, int id, String dbString) {
120:                try {
121:                    StringTokenizer tokenizer = new StringTokenizer(dbString,
122:                            ",");
123:                    Database db = new Database();
124:                    db.id = id;
125:                    db.test = test;
126:                    db.name = tokenizer.nextToken().trim();
127:                    String driver = tokenizer.nextToken().trim();
128:                    Class.forName(driver);
129:                    db.url = tokenizer.nextToken().trim();
130:                    db.user = tokenizer.nextToken().trim();
131:                    db.password = "";
132:                    if (tokenizer.hasMoreTokens()) {
133:                        db.password = tokenizer.nextToken().trim();
134:                    }
135:                    System.out.println("Loaded successfully: " + db.name);
136:                    return db;
137:                } catch (Exception e) {
138:                    System.out.println("Cannot load database " + dbString
139:                            + " :" + e.toString());
140:                    return null;
141:                }
142:            }
143:
144:            Connection getConnection() throws Exception {
145:                Connection conn = DriverManager.getConnection(url, user,
146:                        password);
147:                if (url.startsWith("jdbc:derby:")) {
148:                    // Derby: use higher cache size
149:                    Statement stat = null;
150:                    try {
151:                        stat = conn.createStatement();
152:                        // stat.execute("CALL
153:                        // SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.storage.pageCacheSize',
154:                        // '64')");
155:                        // stat.execute("CALL
156:                        // SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.storage.pageSize',
157:                        // '8192')");
158:                    } finally {
159:                        JdbcUtils.closeSilently(stat);
160:                    }
161:                } else if (url.startsWith("jdbc:hsqldb:")) {
162:                    // HSQLDB: use a WRITE_DELAY of 1 second
163:                    Statement stat = null;
164:                    try {
165:                        stat = conn.createStatement();
166:                        stat.execute("SET WRITE_DELAY 1");
167:                    } finally {
168:                        JdbcUtils.closeSilently(stat);
169:                    }
170:                }
171:                return conn;
172:            }
173:
174:            void openConnection() throws Exception {
175:                conn = DriverManager.getConnection(url, user, password);
176:                stat = conn.createStatement();
177:            }
178:
179:            void closeConnection() throws Exception {
180:                //        if(!serverHSQLDB && url.startsWith("jdbc:hsqldb:")) {
181:                //            stat.execute("SHUTDOWN");
182:                //        }
183:                conn.close();
184:                stat = null;
185:                conn = null;
186:            }
187:
188:            public void setTranslations(Properties prop) {
189:                String id = url.substring("jdbc:".length());
190:                id = id.substring(0, id.indexOf(':'));
191:                for (Iterator it = prop.keySet().iterator(); it.hasNext();) {
192:                    String key = (String) it.next();
193:                    if (key.startsWith(id + ".")) {
194:                        String pattern = key.substring(id.length() + 1);
195:                        pattern = StringUtils.replaceAll(pattern, "_", " ");
196:                        pattern = StringUtils.toUpperEnglish(pattern);
197:                        String replacement = prop.getProperty(key);
198:                        replace.add(new String[] { pattern, replacement });
199:                    }
200:                }
201:            }
202:
203:            PreparedStatement prepare(String sql) throws Exception {
204:                sql = getSQL(sql);
205:                return conn.prepareStatement(sql);
206:            }
207:
208:            public String getSQL(String sql) {
209:                for (int i = 0; i < replace.size(); i++) {
210:                    String[] pair = (String[]) replace.get(i);
211:                    String pattern = pair[0];
212:                    String replace = pair[1];
213:                    sql = StringUtils.replaceAll(sql, pattern, replace);
214:                }
215:                return sql;
216:            }
217:
218:            void start(Bench bench, String action) {
219:                this .action = bench.getName() + ": " + action;
220:                this .startTime = System.currentTimeMillis();
221:            }
222:
223:            void end() {
224:                long time = System.currentTimeMillis() - startTime;
225:                log(action, "ms", (int) time);
226:                if (test.collect) {
227:                    totalTime += time;
228:                }
229:            }
230:
231:            void dropTable(String table) {
232:                try {
233:                    update("DROP TABLE " + table);
234:                } catch (Exception e) {
235:                    // ignore - table may not exist
236:                }
237:            }
238:
239:            public void update(PreparedStatement prep, String log)
240:                    throws Exception {
241:                test.log(log);
242:                prep.executeUpdate();
243:                executedStatements++;
244:            }
245:
246:            public void update(String sql) throws Exception {
247:                sql = getSQL(sql);
248:                if (sql.trim().length() > 0) {
249:                    executedStatements++;
250:                    stat.execute(sql);
251:                } else {
252:                    System.out.println("?");
253:                }
254:            }
255:
256:            public void setAutoCommit(boolean b) throws Exception {
257:                conn.setAutoCommit(b);
258:            }
259:
260:            public void commit() throws Exception {
261:                conn.commit();
262:            }
263:
264:            public void rollback() throws Exception {
265:                conn.rollback();
266:            }
267:
268:            void trace(String action, int i, int max) {
269:                if (trace) {
270:                    long time = System.currentTimeMillis();
271:                    if (i == 0 || lastTrace == 0) {
272:                        lastTrace = time;
273:                    } else if (time > lastTrace + 1000) {
274:                        System.out.println(action + ": "
275:                                + ((100 * i / max) + "%"));
276:                        lastTrace = time;
277:                    }
278:                }
279:            }
280:
281:            void logMemory(Bench bench, String action) {
282:                log(bench.getName() + ": " + action, "MB", TestBase
283:                        .getMemoryUsed());
284:            }
285:
286:            void log(String action, String scale, int value) {
287:                if (test.collect) {
288:                    results.add(new Object[] { action, scale,
289:                            new Integer(value) });
290:                }
291:            }
292:
293:            public ResultSet query(PreparedStatement prep) throws Exception {
294:                //        long time = System.currentTimeMillis();
295:                ResultSet rs = prep.executeQuery();
296:                //        time = System.currentTimeMillis() - time;
297:                //        if(time > 100) {
298:                //            System.out.println("time="+time);
299:                //        }
300:                executedStatements++;
301:                return rs;
302:            }
303:
304:            public void queryReadResult(PreparedStatement prep)
305:                    throws Exception {
306:                ResultSet rs = prep.executeQuery();
307:                ResultSetMetaData meta = rs.getMetaData();
308:                int columnCount = meta.getColumnCount();
309:                while (rs.next()) {
310:                    for (int i = 0; i < columnCount; i++) {
311:                        rs.getString(i + 1);
312:                    }
313:                }
314:            }
315:
316:            int getExecutedStatements() {
317:                return executedStatements;
318:            }
319:
320:            public int getId() {
321:                return id;
322:            }
323:
324:            public Connection getCurrentConnection() {
325:                return conn;
326:            }
327:
328:        }
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