Package com.mchange.v2.c3p0

Examples of com.mchange.v2.c3p0.ComboPooledDataSource

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            String username = p.getProperty(KEY_DB_CONNECTION_USERNAME);
            String password = p.getProperty(KEY_DB_CONNECTION_PASSWORD);

            System.setProperty("com.mchange.v2.c3p0.management.ManagementCoordinator", "com.mchange.v2.c3p0.management.NullManagementCoordinator");

            ComboPooledDataSource cpds = new ComboPooledDataSource(connectionName);
      cpds.setDriverClass(driver);
            cpds.setJdbcUrl(url);
      cpds.setUser(username);
      cpds.setPassword(password);
     
      cpds.setAutoCommitOnClose(autoCommit);
     
      cpds.setMaxPoolSize(Integer.parseInt(maxPoolSize));
      cpds.setMinPoolSize(Integer.parseInt(minPoolSize));
      cpds.setAcquireIncrement(Integer.parseInt(acquireIncrement));
      cpds.setInitialPoolSize(Integer.parseInt(initialPoolSize));
      cpds.setMaxIdleTime(Integer.parseInt(maxIdleTime));

            connectionPoolDataSourcesMap.put(connectionName, cpds);
            log.debug("created ds for " + connectionName + " with properties: " + c3p0props);
    } catch (Throwable e) {
      log.error("Failed to create data source for " + connectionName + " with properties: " + c3p0props + ": " + e.getMessage());
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   private ComboPooledDataSource pooledDataSource;

   @Override
   public void start(ConnectionFactoryConfig config, ClassLoader classLoader) throws CacheLoaderException {
      logFileOverride(classLoader);
      pooledDataSource = new ComboPooledDataSource();
      pooledDataSource.setProperties(new Properties());
      try {
         /* Since c3p0 does not throw an exception when it fails to load a driver we attempt to do so here
          * Also, c3p0 does not allow specifying a custom classloader, so use c3p0's
          */
 
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        usage();
   
    if (! jdbc_url.startsWith("jdbc:") )
        usage();
           
    ComboPooledDataSource cpds = new ComboPooledDataSource();
    cpds.setJdbcUrl( jdbc_url );
    cpds.setUser( username );
    cpds.setPassword( password );
      cpds.setMaxPoolSize( 10 );
//      cpds.setUsesTraditionalReflectiveProxies( true );
       
    C3P0ProxyConnection conn = (C3P0ProxyConnection) cpds.getConnection();
    Method toStringMethod = Object.class.getMethod("toString", new Class[]{});
    Method identityHashCodeMethod = System.class.getMethod("identityHashCode", new Class[] {Object.class});
    System.out.println("rawConnection.toString() -> " +
           conn.rawConnectionOperation(toStringMethod, C3P0ProxyConnection.RAW_CONNECTION, new Object[]{}));
    Integer ihc = (Integer) conn.rawConnectionOperation(identityHashCodeMethod, null, new Object[]{C3P0ProxyConnection.RAW_CONNECTION});
    System.out.println("System.identityHashCode( rawConnection ) -> " + Integer.toHexString( ihc.intValue() ));

    C3P0ProxyStatement stmt = (C3P0ProxyStatement) conn.createStatement();
    System.out.println("rawStatement.toString() -> " +
           stmt.rawStatementOperation(toStringMethod, C3P0ProxyStatement.RAW_STATEMENT, new Object[]{}));
    Integer ihc2 = (Integer) stmt.rawStatementOperation(identityHashCodeMethod, null, new Object[]{C3P0ProxyStatement.RAW_STATEMENT});
    System.out.println("System.identityHashCode( rawStatement ) -> " + Integer.toHexString( ihc2.intValue() ));

    conn.close(); 

      for (int i = 0; i < 10; ++i)
          {
        C3P0ProxyConnection check = null;
        try
            {
          check = (C3P0ProxyConnection) cpds.getConnection();
          //System.err.println( TestUtils.samePhysicalConnection( conn, check ) );
          System.err.println( TestUtils.physicalConnectionIdentityHashCode( check ) == ihc.intValue() );
            }
        finally
            { /* if (check != null) check.close(); */ }
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    {
  try
      {
        cpds.setIdentityToken("poop"); //simulate a never-before-seen data source, so it's a new registration on deserialization
    byte[] pickled = SerializableUtils.toByteArray(cpds);
    ComboPooledDataSource unpickled = (ComboPooledDataSource) SerializableUtils.fromByteArray( pickled );
    assertTrue( "Marshalled and unmarshalled DataSources should have the same properties!",
          BeansUtils.equalsByAccessibleProperties( cpds, unpickled, EXCLUDE_PROPS ) );
      }
  catch (Exception e)
      {
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    {
  try
      {
        cpds.setIdentityToken("scoop"); //simulate a never-before-seen data source, so it's a new registration on deserialization
    Reference ref = cpds.getReference();
    ComboPooledDataSource unpickled = (ComboPooledDataSource) ReferenceableUtils.referenceToObject( ref, null, null, null );
    assertTrue( "Marshalled and unmarshalled DataSources should have the same properties!",
          BeansUtils.equalsByAccessibleProperties( cpds, unpickled, EXCLUDE_PROPS ) );
      }
  catch (Exception e)
      {
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        if (this.dataSource == null) {
            if (StringUtil.isBlank(this.url) || StringUtil.isBlank(this.driverClassName)) {
                throw new JdbcMetadataException(JdbcMetadataI18n.driverClassNameAndUrlAreRequired, "driverClassName", "url");
            }

            ComboPooledDataSource cpds = new ComboPooledDataSource();
            try {
                cpds.setDriverClass(this.driverClassName);
                cpds.setJdbcUrl(this.url);
                cpds.setUser(this.username);
                cpds.setPassword(this.password);
                cpds.setMaxStatements(this.maximumSizeOfStatementCache);
                cpds.setAcquireRetryAttempts(this.retryLimit);
                cpds.setMaxIdleTime(this.maximumConnectionIdleTimeInSeconds);
                cpds.setMinPoolSize(this.minimumConnectionsInPool);
                cpds.setMaxPoolSize(this.maximumConnectionsInPool);
                cpds.setAcquireIncrement(this.numberOfConnectionsToAcquireAsNeeded);
                cpds.setIdleConnectionTestPeriod(this.idleTimeInSecondsBeforeTestingConnections);

            } catch (PropertyVetoException pve) {
                throw new JdbcMetadataException(pve);
            }
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     *
     * @return a {@link DataSource} instance, never {@code null}
     */
    public static DataSource getDataSource() {
        if (dataSource == null) {
            dataSource = new ComboPooledDataSource();
            try {
                dataSource.setDriverClass(DATA_SOURCE_CONFIG.getDriverClassName());
                dataSource.setJdbcUrl(DATA_SOURCE_CONFIG.getUrl());
                dataSource.setUser(DATA_SOURCE_CONFIG.getUsername());
                dataSource.setPassword(DATA_SOURCE_CONFIG.getPassword());
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    {
  try
      {
    cpds.setIdentityToken("poop"); //simulate a never-before-seen data source, so it's a new registration on deserialization
    byte[] pickled = SerializableUtils.toByteArray(cpds);
    ComboPooledDataSource unpickled = (ComboPooledDataSource) SerializableUtils.fromByteArray( pickled );

    // we check references specially; comparison by equals(...) doesn't work
    // not all elements have good .equals(...) methods defined, so functionally equivalent RefAddresses yield false
    compareReferences( cpds.getReference(), unpickled.getReference() );

    // sideBySidePrintReferences( cpds.getReference(), unpickled.getReference() );

    assertTrue( "Marshalled and unmarshalled DataSources should have the same properties!\n\n[[[[cpds]]]:\n" + cpds + "\n\n[[[unpickled]]]:\n" + unpickled + "\n\n",
          // BeansUtils.equalsByAccessiblePropertiesVerbose( cpds, unpickled, EXCLUDE_PROPS ) );
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      }
    }

    private void compareReferences( Reference ref1, Reference ref2 ) throws Exception
    {
  ComboPooledDataSource cpds1 = (ComboPooledDataSource) ReferenceableUtils.referenceToObject( ref1, null, null, null );
  ComboPooledDataSource cpds2 = (ComboPooledDataSource) ReferenceableUtils.referenceToObject( ref2, null, null, null );
  assertTrue( "Marshalled and unmarshalled DataSources references point to the equivalent DataSources",
        //        BeansUtils.equalsByAccessiblePropertiesVerbose( cpds1, cpds2, EXCLUDE_PROPS ) );
        BeansUtils.equalsByAccessibleProperties( cpds1, cpds2, EXCLUDE_PROPS ) );
   
    }
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    {
  try
      {
        cpds.setIdentityToken("scoop"); //simulate a never-before-seen data source, so it's a new registration on deserialization
    Reference ref = cpds.getReference();
    ComboPooledDataSource unpickled = (ComboPooledDataSource) ReferenceableUtils.referenceToObject( ref, null, null, null );
    assertTrue( "Marshalled and unmarshalled DataSources should have the same properties!",
          BeansUtils.equalsByAccessibleProperties( cpds, unpickled, EXCLUDE_PROPS ) );
      }
  catch (Exception e)
      {
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