BaseBugReport.java
上传用户:tanyanyong
上传日期:2013-06-23
资源大小:1355k
文件大小:7k
源码类别:
电子政务应用
开发平台:
MultiPlatform
- /*
- Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- package com.mysql.jdbc.util;
- import java.sql.Connection;
- import java.sql.SQLException;
- import java.util.Properties;
- import com.mysql.jdbc.Driver;
- /**
- * Base class to help file bug reports for Connector/J.
- *
- * <p>
- * MySQL AB <ul>really</ul> appreciates repeatable testcases
- * when reporting bugs, so we're giving you this class to make
- * that job a bit easier (and standarized).
- *
- * <p>
- * To create a testcase, create a class that inherits from
- * this class (com.mysql.jdbc.util.BaseBugReport), and override
- * the methods 'setUp', 'tearDown' and 'runTest'.
- *
- * <p>
- * In the 'setUp' method, create code that creates your tables,
- * and populates them with any data needed to demonstrate the bug.
- *
- * <p>
- * In the 'runTest' method, create code that demonstrates the bug
- * using the tables and data you created in the 'setUp' method.
- *
- * <p>
- * In the 'tearDown' method, drop any tables you created in the
- * 'setUp' method.
- *
- * <p>
- * In any of the above three methods, you should use one
- * of the variants of the 'getConnection' method to create a
- * JDBC connection to MySQL, which will use the default JDBC
- * URL of 'jdbc:mysql:///test'.
- *
- * <p>
- * If you need to use a JDBC URL that is different than
- * 'jdbc:mysql:///test', then override the method 'getUrl' as well.
- *
- * <p>
- * Use the 'assertTrue' methods to create conditions that must be
- * met in your testcase demonstrating the behavior you are expecting
- * (vs. the behavior you are observing, which is why you are most
- * likely filing a bug report).
- *
- * <p>
- * Finally, create a 'main' method that creates a new instance
- * of your testcase, and calls the 'run' method:
- *
- * <p><pre>
- * public static void main(String[] args) throws Exception {
- * new MyBugReport().run();
- * }
- * </pre>
- *
- * <p>
- * When filing a potential bug with MySQL Connector/J at
- * http://bugs.mysql.com/ or on the bugs mailing list, please
- * include the code that you have just written using this class.
- *
- * @author Mark Matthews
- * @version $Id: BaseBugReport.java,v 1.1.2.1 2003/09/17 18:01:22 mmatthew Exp $
- */
- public abstract class BaseBugReport {
- private Connection conn;
- private Driver driver;
- /**
- * Constructor for this BugReport, sets up
- * JDBC driver used to create connections.
- */
- protected BaseBugReport() {
- try {
- this.driver = new Driver();
- } catch (SQLException ex) {
- throw new RuntimeException(ex.toString());
- }
- }
- /**
- * Override this method with code that sets up the
- * testcase for demonstrating your bug (creating tables,
- * populating data, etc).
- *
- * @throws Exception if an error occurs during the
- * 'setUp' phase.
- */
- public abstract void setUp() throws Exception;
- /**
- * Override this method with code that cleans up
- * anything created in the setUp() method.
- *
- * @throws Exception if an error occurs during the
- * 'tearDown' phase.
- */
- public abstract void tearDown() throws Exception;
- /**
- * Override this method with code that demonstrates the bug.
- * This method will be called after setUp(), and before
- * tearDown().
- *
- * @throws Exception if an error occurs during your test
- * run.
- */
- public abstract void runTest() throws Exception;
- /**
- * Runs the testcase by calling the setUp(), runTest()
- * and tearDown() methods. The tearDown() method is run
- * regardless of any errors occuring in the other methods.
- *
- * @throws Exception if an error occurs in any of the
- * aforementioned methods.
- */
- public final void run() throws Exception {
- try {
- setUp();
- runTest();
- } finally {
- tearDown();
- }
- }
- /**
- * Throws an exception with the given message if condition
- * evalutates to 'false'.
- *
- * @param message the message to use in the exception
- * @param condition the condition to test for
- * @throws Exception if !condition
- */
- protected final void assertTrue(String message, boolean condition) throws Exception {
- if (!condition) {
- throw new Exception("Assertion failed: " + message);
- }
- }
- /**
- * Throws an exception if condition
- * evalutates to 'false'.
- *
- * @param condition the condition to test for
- * @throws Exception if !condition
- */
- protected final void assertTrue(boolean condition) throws Exception {
- assertTrue("(no message given)", condition);
- }
- /**
- * Provides the JDBC URL to use to demonstrate the bug. The
- * java.sql.Connection that you use to demonstrate this bug
- * will be provided by the getConnection() method using this URL.
- *
- * The default value is 'jdbc:mysql:///test'
- */
- public String getUrl() {
- return "jdbc:mysql:///test";
- }
- /**
- * Provides a connection to the JDBC URL specified in getUrl().
- *
- * If a connection already exists, that connection is returned.
- * Otherwise a new connection is created.
- *
- * @return a connection to the JDBC URL specified in getUrl().
- *
- * @throws SQLException if an error is caused while creating the
- * connection.
- */
- public final synchronized Connection getConnection() throws SQLException {
- if (this.conn == null || this.conn.isClosed()) {
- this.conn = getNewConnection();
- }
- return this.conn;
- }
- /**
- * Use this if you need to get a new connection for your
- * bug report (i.e. there's more than one connection involved).
- *
- * @return a new connection to the JDBC URL specified in getUrl().
- *
- * @throws SQLException if an error is caused while creating the
- * connection.
- */
- public final synchronized Connection getNewConnection() throws SQLException {
- return getConnection(getUrl());
- }
- /**
- * Returns a connection using the given URL.
- *
- * @param url the JDBC URL to use
- * @return a new java.sql.Connection to the JDBC URL.
- * @throws SQLException if an error occurs getting the connection.
- */
- public final synchronized Connection getConnection(String url) throws SQLException {
- return getConnection(url, null);
- }
- /**
- * Returns a connection using the given URL and properties.
- *
- * @param url the JDBC URL to use
- * @param props the JDBC properties to use
- * @return a new java.sql.Connection to the JDBC URL.
- * @throws SQLException if an error occurs getting the connection.
- */
- public final synchronized Connection getConnection(String url, Properties props) throws SQLException {
- // Don't follow this example in your own code
- // This is to bypass the java.sql.DriverManager
- return this.driver.connect(url, props);
- }
- }