From: erik Date: Thu, 15 May 2008 21:22:01 +0000 (+0000) Subject: added databasecomponent and now using Derby in the unit tests. X-Git-Tag: wamblee-utils-0.2~1^2~110 X-Git-Url: http://wamblee.org/gitweb/?a=commitdiff_plain;h=ec6f6be92acf334f150ea8972c5657d01bc263cc;p=utils added databasecomponent and now using Derby in the unit tests. As a result, no external Mysql database must be setup before running the unit tests. It is now checkout and go!! --- diff --git a/support/general/src/test/java/org/wamblee/persistence/Database.java b/support/general/src/test/java/org/wamblee/persistence/Database.java index 39dffed1..5b0ae98c 100644 --- a/support/general/src/test/java/org/wamblee/persistence/Database.java +++ b/support/general/src/test/java/org/wamblee/persistence/Database.java @@ -12,66 +12,68 @@ * 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 org.wamblee.persistence; import java.sql.Connection; import java.sql.SQLException; - /** * Represents a database. - * + * * @author Erik Brakkee */ public interface Database { /** - * Starts a database. This call should not block and return - * as soon as the database has been started. - * @throws Exception + * Starts a database. This call should not block and return as soon as the + * database has been started. */ - void start( ) throws Exception; + void start(); /** * Gets the Jdbc Url to connect to this database. + * * @return Jdbc Url. */ - String getJdbcUrl( ); - + String getJdbcUrl(); + /** - * Gets the external Jdbc URL to connect to this database from other JVMs. + * Gets the external Jdbc URL to connect to this database from other JVMs. */ String getExternalJdbcUrl(); - + /** - * Gets the driver class name used to connect to the database from another JVM. - * @return Driver class name. + * Gets the driver class name used to connect to the database from another + * JVM. + * + * @return Driver class name. */ - String getDriverClassName(); - + String getDriverClassName(); + /** - * Gets the username to connect to the database. - * @return username. + * Gets the username to connect to the database. + * + * @return username. */ - String getUsername(); - + String getUsername(); + /** - * Gets the password to connect to the database. - * @return password. + * Gets the password to connect to the database. + * + * @return password. */ - String getPassword(); + String getPassword(); /** - * Creates a new database connection. It is the caller's - * responsibility to close this connection. - * + * Creates a new database connection. It is the caller's responsibility to + * close this connection. + * * @return Newly created database connection. */ - Connection createConnection( ) throws SQLException; + Connection createConnection() throws SQLException; /** * Stops a database. - * @throws Exception */ - void stop( ) throws Exception; + void stop(); } diff --git a/support/general/src/test/java/org/wamblee/persistence/DerbyDatabase.java b/support/general/src/test/java/org/wamblee/persistence/DerbyDatabase.java index 1385defd..86d9bc5c 100644 --- a/support/general/src/test/java/org/wamblee/persistence/DerbyDatabase.java +++ b/support/general/src/test/java/org/wamblee/persistence/DerbyDatabase.java @@ -12,7 +12,7 @@ * 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 org.wamblee.persistence; import java.io.File; @@ -30,28 +30,30 @@ import org.apache.derby.jdbc.EmbeddedDriver; import org.apache.log4j.Logger; import org.wamblee.io.FileSystemUtils; - /** - * Derby database setup. - * The external JDBC url used to connect to a running instance is + * Derby database setup. The external JDBC url used to connect to a running + * instance is + * * 
  *     jdbc:derby:net://localhost:1527/testdb 
  *
+ * * and the driver class is + * * 
- *     com.ibm.db2.jcc.DB2Driver
+ * com.ibm.db2.jcc.DB2Driver
  *
- * The following jars will have to be used - * db2jcc.jar and db2jcc_license_c.jar. + * + * The following jars will have to be used db2jcc.jar and + * db2jcc_license_c.jar. */ public class DerbyDatabase implements Database { - + /** * Logger. */ - private static final Logger LOGGER - = Logger.getLogger( DerbyDatabase.class ); - + private static final Logger LOGGER = Logger.getLogger(DerbyDatabase.class); + /** * Database user name. */ @@ -87,167 +89,175 @@ public class DerbyDatabase implements Database { * {@link #DATABASE_PATH}. */ private static final String SYSTEM_PATH_PROPERTY = "derby.system.home"; - + /** - * Constructs derby database class to allow creation of derby - * database instances. + * Constructs derby database class to allow creation of derby database + * instances. */ - public DerbyDatabase( ) { + public DerbyDatabase() { // Empty } /* * (non-Javadoc) + * * @see org.wamblee.persistence.Database#start() */ - public void start( ) throws Exception { - // just in case a previous run was killed without the - // cleanup - cleanPersistentStorage( ); - - // set database path. - Properties lProperties = System.getProperties( ); - lProperties.put( SYSTEM_PATH_PROPERTY, DATABASE_PATH ); - - Class.forName( "org.apache.derby.jdbc.EmbeddedDriver" ).newInstance( ); - - runDatabase( ); - - waitUntilStartedOrStopped( true ); - - // Force creation of the database. - Connection lConnection = createConnection( ); - lConnection.close( ); + public void start() { + try { + // just in case a previous run was killed without the + // cleanup + cleanPersistentStorage(); + + // set database path. + Properties lProperties = System.getProperties(); + lProperties.put(SYSTEM_PATH_PROPERTY, DATABASE_PATH); + + Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance(); + + runDatabase(); + + waitUntilStartedOrStopped(true); + + // Force creation of the database. + Connection lConnection = createConnection(); + lConnection.close(); + } catch (Exception e) { + throw new RuntimeException("Problem starting database", e); + } } /** * Waits until the database server has started or stopped. - * + * * @param aStarted * If true, waits until the server is up, if false, waits until * the server is down. * @throws InterruptedException */ - private void waitUntilStartedOrStopped( boolean aStarted ) - throws InterruptedException { + private void waitUntilStartedOrStopped(boolean aStarted) + throws InterruptedException { long lWaited = 0; - while ( aStarted != isStarted( ) ) { - Thread.sleep( POLL_INTERVAL ); + while (aStarted != isStarted()) { + Thread.sleep(POLL_INTERVAL); lWaited += POLL_INTERVAL; - if ( lWaited > MAX_WAIT_TIME ) { - throw new RuntimeException( - "Derby database did not start within " + MAX_WAIT_TIME - + "ms" ); + if (lWaited > MAX_WAIT_TIME) { + throw new RuntimeException( + "Derby database did not start within " + MAX_WAIT_TIME + + "ms"); } } } /** * Checks if the database server has started or not. - * + * * @return True if started, false otherwise. */ - private boolean isStarted( ) { + private boolean isStarted() { try { - getControl( ).ping( ); + getControl().ping(); return true; - } catch ( Exception e ) { + } catch (Exception e) { return false; } } /** * Gets the controller for the database server. - * + * * @return Controller. * @throws Exception */ - private NetworkServerControl getControl( ) throws Exception { - return new NetworkServerControl( ); + private NetworkServerControl getControl() throws Exception { + return new NetworkServerControl(); } /** * Runs the database. - * + * */ - private void runDatabase( ) { + private void runDatabase() { try { - getControl( ).start( new PrintWriter( System.out ) ); - } catch ( Exception e ) { - throw new RuntimeException( e ); + getControl().start(new PrintWriter(System.out)); + } catch (Exception e) { + throw new RuntimeException(e); } } - /* - * (non-Javadoc) - * @see org.wamblee.persistence.Database#getJdbcUrl() - */ - public String getJdbcUrl( ) { - return getBaseJdbcUrl( ) - + ";create=true;retrieveMessagesFromServerOnGetMessage=true;"; + /* + * (non-Javadoc) + * + * @see org.wamblee.persistence.Database#getJdbcUrl() + */ + public String getJdbcUrl() { + return getBaseJdbcUrl() + + ";create=true;retrieveMessagesFromServerOnGetMessage=true;"; } - private String getBaseJdbcUrl( ) { + private String getBaseJdbcUrl() { return "jdbc:derby:" + DATABASE_NAME; } - + /* * (non-Javadoc) + * * @see org.wamblee.persistence.Database#getExternalJdbcUrl() */ - public String getExternalJdbcUrl( ) { + public String getExternalJdbcUrl() { return "jdbc:derby:net://localhost:1527/" + DATABASE_NAME; } /** * Shuts down the derby database and cleans up all created files. - * + * */ - private void shutdownDerby( ) { + private void shutdownDerby() { try { - DriverManager.getConnection( "jdbc:derby:;shutdown=true" ); - throw new RuntimeException( - "Derby did not shutdown, " - + " should always throw exception at shutdown" ); - } catch ( Exception e ) { - LOGGER.info( "Derby has been shut down." ); + DriverManager.getConnection("jdbc:derby:;shutdown=true"); + throw new RuntimeException("Derby did not shutdown, " + + " should always throw exception at shutdown"); + } catch (Exception e) { + LOGGER.info("Derby has been shut down."); } } - - /* - * (non-Javadoc) - * @see org.wamblee.persistence.Database#getDriverClassName() - */ - public String getDriverClassName( ) { + + /* + * (non-Javadoc) + * + * @see org.wamblee.persistence.Database#getDriverClassName() + */ + public String getDriverClassName() { return ClientDriver.class.getName(); } /** * Gets the user name. */ - public String getUsername( ) { + public String getUsername() { return USERNAME; } /** * Gets the password. + * * @return */ - public String getPassword( ) { + public String getPassword() { return PASSWORD; } - /* - * (non-Javadoc) - * @see org.wamblee.persistence.Database#createConnection() - */ - public Connection createConnection( ) throws SQLException { - Connection c = - DriverManager.getConnection( getJdbcUrl( ), getUsername( ), - getPassword( ) ); + /* + * (non-Javadoc) + * + * @see org.wamblee.persistence.Database#createConnection() + */ + public Connection createConnection() throws SQLException { + Connection c = DriverManager.getConnection(getJdbcUrl(), getUsername(), + getPassword()); return c; } @@ -255,31 +265,35 @@ public class DerbyDatabase implements Database { /** * Stops the derby database and cleans up all derby files. */ - public void stop( ) throws Exception { - // shutdown network server. - getControl( ).shutdown( ); - waitUntilStartedOrStopped( false ); - - // shutdown inmemory access. - shutdownDerby( ); - cleanPersistentStorage( ); + public void stop() { + try { + // shutdown network server. + getControl().shutdown(); + waitUntilStartedOrStopped(false); + + // shutdown inmemory access. + shutdownDerby(); + cleanPersistentStorage(); + } catch (Exception e) { + LOGGER.warn("Problem stopping database", e); + } } /** * Cleans up persistent storage of Derby. */ - private void cleanPersistentStorage( ) { - File lFile = new File( DATABASE_PATH ); + private void cleanPersistentStorage() { + File lFile = new File(DATABASE_PATH); - if ( lFile.isFile( ) ) { - TestCase.fail( "A regular file by the name " + DATABASE_PATH - + " exists, clean this up first" ); + if (lFile.isFile()) { + TestCase.fail("A regular file by the name " + DATABASE_PATH + + " exists, clean this up first"); } - if ( !lFile.isDirectory( ) ) { - return; // no-op already cleanup up. + if (!lFile.isDirectory()) { + return; // no-op already cleanup up. } - FileSystemUtils.deleteDirRecursively( DATABASE_PATH ); + FileSystemUtils.deleteDirRecursively(DATABASE_PATH); } } diff --git a/support/general/src/test/java/org/wamblee/persistence/OracleDatabase.java b/support/general/src/test/java/org/wamblee/persistence/OracleDatabase.java index a091dbcb..6b82c632 100644 --- a/support/general/src/test/java/org/wamblee/persistence/OracleDatabase.java +++ b/support/general/src/test/java/org/wamblee/persistence/OracleDatabase.java @@ -12,47 +12,47 @@ * 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 org.wamblee.persistence; import java.sql.Connection; import java.sql.SQLException; public class OracleDatabase implements Database { - + public OracleDatabase() { super(); } - public void start( ) throws Exception { - System.out.println("Oracle must be started externally"); + public void start() { + System.out.println("Oracle must be started externally"); } - public String getJdbcUrl( ) { + public String getJdbcUrl() { return null; } - public String getExternalJdbcUrl( ) { + public String getExternalJdbcUrl() { return null; } - public String getDriverClassName( ) { + public String getDriverClassName() { return null; } - public String getUsername( ) { + public String getUsername() { return null; } - public String getPassword( ) { + public String getPassword() { return null; } - public Connection createConnection( ) throws SQLException { + public Connection createConnection() throws SQLException { return null; } - public void stop( ) throws Exception { + public void stop() { System.out.println("Oracle must be stopped externally"); }