WebSVN – XServices – Diff – /xservices/trunk/src/main/java/net/brutex/xservices/util/BrutexHSQLQuartzConnectionProvider.java


/*
 *   Copyright 2011 Brian Rosenberger (Brutex Network)
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
 
package net.brutex.xservices.util;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
 
 
 
 
import lombok.extern.slf4j.Slf4j;
import org.quartz.utils.ConnectionProvider;
 
/**
 * @author Brian Rosenberger
 * 
 */
@Slf4j
public class BrutexHSQLQuartzConnectionProvider implements ConnectionProvider {
	
	private Connection conn = null;
 
 
	
 
	public Connection getConnection() throws SQLException {
		if( conn!= null ) { // Todo: && conn.conn.isValid(5)) {
			log.debug("Checking tables on pre-exisiting database connection.");
			checkTables();
			return conn;
		}
		try {
			// Class.forName("org.hsqldb.jdbc.JDBCDriver" );
			Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
		} catch (Exception e) {
			log.error("Failed to load Derby JDBC driver.");
			e.printStackTrace();
			return null;
		}
 
		if(isConnected(false)) {
			checkTables();
		} else {
			return null;
		}
		
		return conn;
	}
 
	public void shutdown() throws SQLException {
		try {
			// Class.forName("org.hsqldb.jdbc.JDBCDriver" );
			Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
		} catch (Exception e) {
			System.err.println("ERROR: failed to load Derby JDBC driver.");
			e.printStackTrace();
			return;
		}
		String t = this.getClass().getClassLoader().getResource("/").toString()
				.substring(6);
		t += "../data/db";
		System.out.println("Shut down embedded database now.");
		Connection c = DriverManager.getConnection("jdbc:derby:" + t
				+ ";shutdown=true;");
 
	}
 
	@Override
	public void initialize() throws SQLException {
 
	}
 
	private synchronized void recursiveDelete(File dbDir) {
		File[] files = dbDir.listFiles();
		for (int i = 0; i < files.length; i++) {
			if (files[i].isFile()) {
				files[i].delete();
			} else {
				recursiveDelete(files[i]);
				files[i].delete();
			}
		}
		dbDir.delete();
	}
	
	private synchronized void checkTables() throws SQLException {
		log.debug("Checking QUARTZ database schema.");
		if(!isConnected(false)) {
			log.error("Failed to validate QUARTZ database schema.");
			return;
		}
		List<String> ddl_list = new ArrayList<String>(11);
		ddl_list.add("QRTZ_JOB_DETAILS");
		ddl_list.add("QRTZ_TRIGGERS");
		ddl_list.add("QRTZ_SIMPLE_TRIGGERS");
		ddl_list.add("QRTZ_CRON_TRIGGERS");
		ddl_list.add("QRTZ_SIMPROP_TRIGGERS");
		ddl_list.add("QRTZ_BLOB_TRIGGERS");
		ddl_list.add("QRTZ_CALENDARS");
		ddl_list.add("QRTZ_PAUSED_TRIGGER_GRPS");
		ddl_list.add("QRTZ_FIRED_TRIGGERS");
		ddl_list.add("QRTZ_SCHEDULER_STATE");
		ddl_list.add("QRTZ_LOCKS");
		
		String ddl = this.getClass().getClassLoader().getResource("/").toString()
		.substring(6)+ "../data/";
 
		DatabaseMetaData dmd = conn.getMetaData();
		for (String tbl : ddl_list) {
			ResultSet rs = dmd.getTables(null, "APP", tbl, null);
			if (!rs.next()) {
				log.debug("Adding DDL for table {}", tbl);
				Statement st = conn.createStatement();
				File ddlFile = new File(ddl + tbl + ".ddl");
				String create = "";
				try {
						BufferedReader r = new BufferedReader(new FileReader(ddlFile));
						while (r.ready()) {
							create += r.readLine() + "\n";
						}
						create.trim();
						if( st.execute(create)) {
							log.debug("Table {} created.", tbl);
						} 
 
 
					} catch (IOException ex) {
						ex.printStackTrace();
					} catch (SQLException ex) {
						log.error("Error executing statement {}.",create, ex );
 
					}
				} else {
					log.trace("Table {} exists.", tbl);
				}
			}
		}
	
	private synchronized boolean isConnected(boolean fail) throws SQLException {
		if(conn!=null ) { // Todo: && conn.conn.isValid(5)) {) {
			return true;
		} else {
			String t = this.getClass().getClassLoader().getResource("/").toString().substring(6); // WEB-INF/classes
			t += "../data/db";
			log.debug("Database directory is set to '{}", t);
			try {
				this.conn = DriverManager.getConnection("jdbc:derby:" + t + ";create=true;");
			} catch (SQLException ex) {
				log.error(ex.getMessage(), ex);
				if(!fail) {
					log.warn("Deleting database directory.");
					recursiveDelete(new File(t));
					log.warn("Retrying to connect to database.");
					return isConnected(true);
				} else {
					return false;
				}
			}
		}
		return false;
	}
 
 
}

Rev 198	Rev 199
1	`/*`	1	`/*`
2	`* Copyright 2011 Brian Rosenberger (Brutex Network)`	2	`* Copyright 2011 Brian Rosenberger (Brutex Network)`
3	`*`	3	`*`
4	`* Licensed under the Apache License, Version 2.0 (the "License");`	4	`* Licensed under the Apache License, Version 2.0 (the "License");`
5	`* you may not use this file except in compliance with the License.`	5	`* you may not use this file except in compliance with the License.`
6	`* You may obtain a copy of the License at`	6	`* You may obtain a copy of the License at`
7	`*`	7	`*`
8	`* http://www.apache.org/licenses/LICENSE-2.0`	8	`* http://www.apache.org/licenses/LICENSE-2.0`
9	`*`	9	`*`
10	`* Unless required by applicable law or agreed to in writing, software`	10	`* Unless required by applicable law or agreed to in writing, software`
11	`* distributed under the License is distributed on an "AS IS" BASIS,`	11	`* distributed under the License is distributed on an "AS IS" BASIS,`
12	`* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.`	12	`* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.`
13	`* See the License for the specific language governing permissions and`	13	`* See the License for the specific language governing permissions and`
14	`* limitations under the License.`	14	`* limitations under the License.`
15	`*/`	15	`*/`
16		16
17	`package net.brutex.xservices.util;`	17	`package net.brutex.xservices.util;`
18		18
19	`import java.io.BufferedReader;`	19	`import java.io.BufferedReader;`
20	`import java.io.File;`	20	`import java.io.File;`
21	`import java.io.FileNotFoundException;`	21	`import java.io.FileNotFoundException;`
22	`import java.io.FileReader;`	22	`import java.io.FileReader;`
23	`import java.io.IOException;`	23	`import java.io.IOException;`
24	`import java.sql.Connection;`	24	`import java.sql.Connection;`
25	`import java.sql.DatabaseMetaData;`	25	`import java.sql.DatabaseMetaData;`
26	`import java.sql.DriverManager;`	26	`import java.sql.DriverManager;`
27	`import java.sql.ResultSet;`	27	`import java.sql.ResultSet;`
28	`import java.sql.SQLException;`	28	`import java.sql.SQLException;`
29	`import java.sql.Statement;`	29	`import java.sql.Statement;`
30	`import java.util.ArrayList;`	30	`import java.util.ArrayList;`
31	`import java.util.List;`	31	`import java.util.List;`
-		32
32		33
33	`import org.apache.logging.log4j.Level;`	-
34	`import org.apache.logging.log4j.LogManager;`	-
35	`import org.apache.logging.log4j.Logger;`	34	`import lombok.extern.slf4j.Slf4j;`
36	`import org.quartz.utils.ConnectionProvider;`	35	`import org.quartz.utils.ConnectionProvider;`
37		36
38	`/**`	37	`/**`
39	`* @author Brian Rosenberger`	38	`* @author Brian Rosenberger`
40	`*`	39	`*`
41	`*/`	40	`*/`
-		41	`@Slf4j`
42	`public class BrutexHSQLQuartzConnectionProvider implements ConnectionProvider {`	42	`public class BrutexHSQLQuartzConnectionProvider implements ConnectionProvider {`
43		43
44	`private Connection conn = null;`	44	`private Connection conn = null;`
45	`private static final Logger logger = LogManager.getLogger();`	-
-		45
46		46
47		47
48	`public Connection getConnection() throws SQLException {`	48	`public Connection getConnection() throws SQLException {`
49	`if( conn!= null ) { // Todo: && conn.conn.isValid(5)) {`	49	`if( conn!= null ) { // Todo: && conn.conn.isValid(5)) {`
50	`logger.debug("Checking tables on pre-exisiting database connection.");`	50	`log.debug("Checking tables on pre-exisiting database connection.");`
51	`checkTables();`	51	`checkTables();`
52	`return conn;`	52	`return conn;`
53	`}`	53	`}`
54	`try {`	54	`try {`
55	`// Class.forName("org.hsqldb.jdbc.JDBCDriver" );`	55	`// Class.forName("org.hsqldb.jdbc.JDBCDriver" );`
56	`Class.forName("org.apache.derby.jdbc.EmbeddedDriver");`	56	`Class.forName("org.apache.derby.jdbc.EmbeddedDriver");`
57	`} catch (Exception e) {`	57	`} catch (Exception e) {`
58	`logger.fatal("Failed to load Derby JDBC driver.");`	58	`log.error("Failed to load Derby JDBC driver.");`
59	`e.printStackTrace();`	59	`e.printStackTrace();`
60	`return null;`	60	`return null;`
61	`}`	61	`}`
62		62
63	`if(isConnected(false)) {`	63	`if(isConnected(false)) {`
64	`checkTables();`	64	`checkTables();`
65	`} else {`	65	`} else {`
66	`return null;`	66	`return null;`
67	`}`	67	`}`
68		68
69	`return conn;`	69	`return conn;`
70	`}`	70	`}`
71		71
72	`public void shutdown() throws SQLException {`	72	`public void shutdown() throws SQLException {`
73	`try {`	73	`try {`
74	`// Class.forName("org.hsqldb.jdbc.JDBCDriver" );`	74	`// Class.forName("org.hsqldb.jdbc.JDBCDriver" );`
75	`Class.forName("org.apache.derby.jdbc.EmbeddedDriver");`	75	`Class.forName("org.apache.derby.jdbc.EmbeddedDriver");`
76	`} catch (Exception e) {`	76	`} catch (Exception e) {`
77	`System.err.println("ERROR: failed to load Derby JDBC driver.");`	77	`System.err.println("ERROR: failed to load Derby JDBC driver.");`
78	`e.printStackTrace();`	78	`e.printStackTrace();`
79	`return;`	79	`return;`
80	`}`	80	`}`
81	`String t = this.getClass().getClassLoader().getResource("/").toString()`	81	`String t = this.getClass().getClassLoader().getResource("/").toString()`
82	`.substring(6);`	82	`.substring(6);`
83	`t += "../data/db";`	83	`t += "../data/db";`
84	`System.out.println("Shut down embedded database now.");`	84	`System.out.println("Shut down embedded database now.");`
85	`Connection c = DriverManager.getConnection("jdbc:derby:" + t`	85	`Connection c = DriverManager.getConnection("jdbc:derby:" + t`
86	`+ ";shutdown=true;");`	86	`+ ";shutdown=true;");`
87		87
88	`}`	88	`}`
89		89
90	`@Override`	90	`@Override`
91	`public void initialize() throws SQLException {`	91	`public void initialize() throws SQLException {`
92		92
93	`}`	93	`}`
94		94
95	`private synchronized void recursiveDelete(File dbDir) {`	95	`private synchronized void recursiveDelete(File dbDir) {`
96	`File[] files = dbDir.listFiles();`	96	`File[] files = dbDir.listFiles();`
97	`for (int i = 0; i < files.length; i++) {`	97	`for (int i = 0; i < files.length; i++) {`
98	`if (files[i].isFile()) {`	98	`if (files[i].isFile()) {`
99	`files[i].delete();`	99	`files[i].delete();`
100	`} else {`	100	`} else {`
101	`recursiveDelete(files[i]);`	101	`recursiveDelete(files[i]);`
102	`files[i].delete();`	102	`files[i].delete();`
103	`}`	103	`}`
104	`}`	104	`}`
105	`dbDir.delete();`	105	`dbDir.delete();`
106	`}`	106	`}`
107		107
108	`private synchronized void checkTables() throws SQLException {`	108	`private synchronized void checkTables() throws SQLException {`
109	`logger.debug("Checking QUARTZ database schema.");`	109	`log.debug("Checking QUARTZ database schema.");`
110	`if(!isConnected(false)) {`	110	`if(!isConnected(false)) {`
111	`logger.error("Failed to validate QUARTZ database schema.");`	111	`log.error("Failed to validate QUARTZ database schema.");`
112	`return;`	112	`return;`
113	`}`	113	`}`
114	`List<String> ddl_list = new ArrayList<String>(11);`	114	`List<String> ddl_list = new ArrayList<String>(11);`
115	`ddl_list.add("QRTZ_JOB_DETAILS");`	115	`ddl_list.add("QRTZ_JOB_DETAILS");`
116	`ddl_list.add("QRTZ_TRIGGERS");`	116	`ddl_list.add("QRTZ_TRIGGERS");`
117	`ddl_list.add("QRTZ_SIMPLE_TRIGGERS");`	117	`ddl_list.add("QRTZ_SIMPLE_TRIGGERS");`
118	`ddl_list.add("QRTZ_CRON_TRIGGERS");`	118	`ddl_list.add("QRTZ_CRON_TRIGGERS");`
119	`ddl_list.add("QRTZ_SIMPROP_TRIGGERS");`	119	`ddl_list.add("QRTZ_SIMPROP_TRIGGERS");`
120	`ddl_list.add("QRTZ_BLOB_TRIGGERS");`	120	`ddl_list.add("QRTZ_BLOB_TRIGGERS");`
121	`ddl_list.add("QRTZ_CALENDARS");`	121	`ddl_list.add("QRTZ_CALENDARS");`
122	`ddl_list.add("QRTZ_PAUSED_TRIGGER_GRPS");`	122	`ddl_list.add("QRTZ_PAUSED_TRIGGER_GRPS");`
123	`ddl_list.add("QRTZ_FIRED_TRIGGERS");`	123	`ddl_list.add("QRTZ_FIRED_TRIGGERS");`
124	`ddl_list.add("QRTZ_SCHEDULER_STATE");`	124	`ddl_list.add("QRTZ_SCHEDULER_STATE");`
125	`ddl_list.add("QRTZ_LOCKS");`	125	`ddl_list.add("QRTZ_LOCKS");`
126		126
127	`String ddl = this.getClass().getClassLoader().getResource("/").toString()`	127	`String ddl = this.getClass().getClassLoader().getResource("/").toString()`
128	`.substring(6)+ "../data/";`	128	`.substring(6)+ "../data/";`
129		129
130	`DatabaseMetaData dmd = conn.getMetaData();`	130	`DatabaseMetaData dmd = conn.getMetaData();`
131	`for (String tbl : ddl_list) {`	131	`for (String tbl : ddl_list) {`
132	`ResultSet rs = dmd.getTables(null, "APP", tbl, null);`	132	`ResultSet rs = dmd.getTables(null, "APP", tbl, null);`
133	`if (!rs.next()) {`	133	`if (!rs.next()) {`
134	`logger.log(Level.INFO, "Adding DDL for table "+ tbl);`	134	`log.debug("Adding DDL for table {}", tbl);`
135	`Statement st = conn.createStatement();`	135	`Statement st = conn.createStatement();`
136	`File ddlFile = new File(ddl + tbl + ".ddl");`	136	`File ddlFile = new File(ddl + tbl + ".ddl");`
137	`String create = "";`	137	`String create = "";`
138	`try {`	138	`try {`
139	`BufferedReader r = new BufferedReader(new FileReader(ddlFile));`	139	`BufferedReader r = new BufferedReader(new FileReader(ddlFile));`
140	`while (r.ready()) {`	140	`while (r.ready()) {`
141	`create += r.readLine() + "\n";`	141	`create += r.readLine() + "\n";`
142	`}`	142	`}`
143	`create.trim();`	143	`create.trim();`
144	`if( st.execute(create)) {`	144	`if( st.execute(create)) {`
145	`logger.log(Level.INFO, "Table " + tbl + " created.");`	145	`log.debug("Table {} created.", tbl);`
146	`}`	146	`}`
147	`} catch (FileNotFoundException ex) {`	-
148	`ex.printStackTrace();`	-
149	`} catch (IOException ex) {`	147	`} catch (IOException ex) {`
150	`ex.printStackTrace();`	148	`ex.printStackTrace();`
151	`} catch (SQLException ex) {`	149	`} catch (SQLException ex) {`
152	`logger.log(Level.ERROR, "Error executing statement "+ create );`	150	`log.error("Error executing statement {}.",create, ex );`
153	`System.out.println(ex.getMessage());`	-
154	`}`	151	`}`
155	`} else {`	152	`} else {`
156	`logger.trace("Table "+tbl+" exists.");`	153	`log.trace("Table {} exists.", tbl);`
157	`}`	154	`}`
158	`}`	155	`}`
159	`}`	156	`}`
160		157
161	`private synchronized boolean isConnected(boolean fail) throws SQLException {`	158	`private synchronized boolean isConnected(boolean fail) throws SQLException {`
162	`if(conn!=null ) { // Todo: && conn.conn.isValid(5)) {) {`	159	`if(conn!=null ) { // Todo: && conn.conn.isValid(5)) {) {`
163	`return true;`	160	`return true;`
164	`} else {`	161	`} else {`
165	`String t = this.getClass().getClassLoader().getResource("/").toString().substring(6); // WEB-INF/classes`	162	`String t = this.getClass().getClassLoader().getResource("/").toString().substring(6); // WEB-INF/classes`
166	`t += "../data/db";`	163	`t += "../data/db";`
167	`logger.debug("Database directory is set to '" + t + "'");`	164	`log.debug("Database directory is set to '{}", t);`
168	`try {`	165	`try {`
169	`this.conn = DriverManager.getConnection("jdbc:derby:" + t + ";create=true;");`	166	`this.conn = DriverManager.getConnection("jdbc:derby:" + t + ";create=true;");`
170	`} catch (SQLException ex) {`	167	`} catch (SQLException ex) {`
171	`logger.error(ex.getMessage(), ex);`	168	`log.error(ex.getMessage(), ex);`
172	`if(!fail) {`	169	`if(!fail) {`
173	`logger.warn("Deleting database directory.");`	170	`log.warn("Deleting database directory.");`
174	`recursiveDelete(new File(t));`	171	`recursiveDelete(new File(t));`
175	`logger.warn("Retrying to connect to database.");`	172	`log.warn("Retrying to connect to database.");`
176	`return isConnected(true);`	173	`return isConnected(true);`
177	`} else {`	174	`} else {`
178	`return false;`	175	`return false;`
179	`}`	176	`}`
180	`}`	177	`}`
181	`}`	178	`}`
182	`return false;`	179	`return false;`
183	`}`	180	`}`
184		181
185		182
186	`}`	183	`}`

Subversion Repositories XServices

(root)/xservices/trunk/src/main/java/net/brutex/xservices/util/BrutexHSQLQuartzConnectionProvider.java – Rev 198 → 199