com.mchange.v2.c3p0.ComboPooledDataSource#setMaxIdleTime

Source File: C3P0PoolManager.java From wind-im with Apache License 2.0

6 votes

public static void initPool(Properties pro) throws Exception {
	String jdbcUrl = getJdbcUrl(pro);
	String userName = trimToNull(pro, JdbcConst.MYSQL_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_PASSWORD);

	cpds = new ComboPooledDataSource();
	cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
	cpds.setJdbcUrl(jdbcUrl);
	cpds.setUser(userName);
	cpds.setPassword(password);
	int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_INITIAL_SIZE, "10"));
	int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_SIZE, "100"));
	cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
	cpds.setMaxPoolSize(maxSize);// 最大默认100个
	int inc = (maxSize - inititalSize) / 5;
	cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建10个

	int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_IDLE, "60"));
	cpds.setMaxIdleTime(maxIdle);// 最大空闲时间
	
	SqlLog.info("windchat init mysql master connection pool cpds={}", cpds);
}

Source File: C3P0ConnectionPool.java From Project with Apache License 2.0

6 votes

/**
 * 使用硬连接的方式
 * @throws PropertyVetoException
 * @throws SQLException
 */
public void HardcodeStyleTest() throws PropertyVetoException, SQLException {
    // 1.创建连接池的核心工具类
    ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();

    // 2.设置连接数据库所需的参数
    comboPooledDataSource.setDriverClass("com.mysql.cj.jdbc.Driver");
    comboPooledDataSource.setJdbcUrl("jdbc:mysql://localhost:3306/day34jdbc?serverTimezone = GMT%2B8 ");
    comboPooledDataSource.setUser("root");
    comboPooledDataSource.setPassword("GJXAIOU");

    // 3.设置C3P0连接池的属性:初始化连接数、最大连接数、等待时间
    comboPooledDataSource.setInitialPoolSize(3);
    comboPooledDataSource.setMaxPoolSize(6);
    comboPooledDataSource.setMaxIdleTime(1000);

    // 4.从连接池中获取数据库连接对象
    Connection connection = comboPooledDataSource.getConnection();

    // 5.准备preparedStatement执行SQL语句
    connection.prepareStatement("delete from person where id = 3").executeUpdate();
}

Source File: C3P0PoolManager.java From openzaly with Apache License 2.0

6 votes

public static void initPool(Properties pro) throws Exception {
	String jdbcUrl = getJdbcUrl(pro);
	String userName = trimToNull(pro, JdbcConst.MYSQL_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_PASSWORD);

	cpds = new ComboPooledDataSource();
	cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
	cpds.setJdbcUrl(jdbcUrl);
	cpds.setUser(userName);
	cpds.setPassword(password);
	int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_INITIAL_SIZE, "10"));
	int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_SIZE, "100"));
	cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
	cpds.setMaxPoolSize(maxSize);// 最大默认100个
	int inc = (maxSize - inititalSize) / 5;
	cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建10个

	int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_IDLE, "60"));
	cpds.setMaxIdleTime(maxIdle);// 最大空闲时间
	
	SqlLog.info("openzaly init mysql master connection pool cpds={}", cpds);
}

Source File: DbToolkit.java From LuckyFrameClient with GNU Affero General Public License v3.0

6 votes

public DbToolkit(String urlBase,String usernameBase,String passwordBase){
	cpds=new ComboPooledDataSource();  
       cpds.setUser(usernameBase);  
       cpds.setPassword(passwordBase);  
       cpds.setJdbcUrl(urlBase);  
       try {  
           cpds.setDriverClass(DRIVERCLASS);  
       } catch (PropertyVetoException e) {  
           // TODO Auto-generated catch block  
           e.printStackTrace();  
       }  
       cpds.setInitialPoolSize(20);  
       cpds.setMaxIdleTime(20);  
       cpds.setMaxPoolSize(30);  
       cpds.setMinPoolSize(1);  	
}

Source File: C3P0PoolManager.java From openzaly with Apache License 2.0

6 votes

public static void initPool(Properties pro) throws Exception {
	String jdbcUrl = getDBUrl(pro);
	String userName = trimToNull(pro, JdbcConst.MYSQL_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_PASSWORD);

	cpds = new ComboPooledDataSource();
	cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
	cpds.setJdbcUrl(jdbcUrl);
	cpds.setUser(userName);
	cpds.setPassword(password);
	int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_INITIAL_SIZE, "10"));
	int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_SIZE, "100"));
	cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
	cpds.setMaxPoolSize(maxSize);// 最大默认100个
	int inc = (maxSize - inititalSize) / 5;
	cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建10个

	int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_MAX_IDLE, "60"));
	cpds.setMaxIdleTime(maxIdle);// 最大空闲时间
	
	SqlLog.info("openzaly init mysql master connection pool cpds={}", cpds);
}

Source File: C3p0DataSourcePool.java From EasyReport with Apache License 2.0

6 votes

@Override
public DataSource wrap(ReportDataSource rptDs) {
    try {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setDriverClass(rptDs.getDriverClass());
        dataSource.setJdbcUrl(rptDs.getJdbcUrl());
        dataSource.setUser(rptDs.getUser());
        dataSource.setPassword(rptDs.getPassword());
        dataSource.setInitialPoolSize(MapUtils.getInteger(rptDs.getOptions(), "initialPoolSize", 3));
        dataSource.setMinPoolSize(MapUtils.getInteger(rptDs.getOptions(), "minPoolSize", 1));
        dataSource.setMaxPoolSize(MapUtils.getInteger(rptDs.getOptions(), "maxPoolSize", 20));
        dataSource.setMaxStatements(MapUtils.getInteger(rptDs.getOptions(), "maxStatements", 50));
        dataSource.setMaxIdleTime(MapUtils.getInteger(rptDs.getOptions(), "maxIdleTime", 1800));
        dataSource.setAcquireIncrement(MapUtils.getInteger(rptDs.getOptions(), "acquireIncrement", 3));
        dataSource.setAcquireRetryAttempts(MapUtils.getInteger(rptDs.getOptions(), "acquireRetryAttempts", 30));
        dataSource.setIdleConnectionTestPeriod(
            MapUtils.getInteger(rptDs.getOptions(), "idleConnectionTestPeriod", 60));
        dataSource.setBreakAfterAcquireFailure(
            MapUtils.getBoolean(rptDs.getOptions(), "breakAfterAcquireFailure", false));
        dataSource.setTestConnectionOnCheckout(
            MapUtils.getBoolean(rptDs.getOptions(), "testConnectionOnCheckout", false));
        return dataSource;
    } catch (Exception ex) {
        throw new RuntimeException("C3p0DataSourcePool Create Error", ex);
    }
}

Source File: C3P0DataSourceFactoryBean.java From cloud-config with MIT License

6 votes

private ComboPooledDataSource createNewDataSource() throws Exception {
    ComboPooledDataSource c3p0DataSource = new ComboPooledDataSource();

    c3p0DataSource.setDriverClass(config.getDriverClassName()); //loads the jdbc driver
    c3p0DataSource.setJdbcUrl(config.getJdbcUrl());
    c3p0DataSource.setUser(config.getUserName());
    c3p0DataSource.setPassword(config.getPassword());

    // the settings below are optional -- c3p0 can work with defaults
    c3p0DataSource.setMinPoolSize(config.getMinPoolSize());
    c3p0DataSource.setMaxPoolSize(config.getMaxPoolSize());
    c3p0DataSource.setAcquireIncrement(config.getAcquireIncrement());
    c3p0DataSource.setMaxStatements(config.getMaxStatements());
    c3p0DataSource.setIdleConnectionTestPeriod(config.getIdleTestPeriod());
    c3p0DataSource.setMaxIdleTime(config.getMaxIdleTime());

    return c3p0DataSource;
}

Source File: C3P0PoolSlaveManager.java From openzaly with Apache License 2.0

5 votes

public static void initPool(Properties pro) throws Exception {
	List<String> jdbcUrlList = getSlaveJdbcUrl(pro);

	String userName = trimToNull(pro, JdbcConst.MYSQL_SLAVE_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_SLAVE_PASSWORD);

	if (jdbcUrlList == null || jdbcUrlList.size() == 0 || StringUtils.isAnyEmpty(userName, password)) {
		SqlLog.warn(
				"load database slave for mysql fail, system will user mysql master connection pool.urls={} user={} passwd={}",
				jdbcUrlList, userName, password);
		return;
	}

	cpdsList = new ArrayList<ComboPooledDataSource>();

	for (String jdbcUrl : jdbcUrlList) {
		ComboPooledDataSource cpds = new ComboPooledDataSource();
		cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
		cpds.setJdbcUrl(jdbcUrl);
		cpds.setUser(userName);
		cpds.setPassword(password);
		int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_INITIAL_SIZE, "10"));
		int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_SIZE, "100"));
		cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
		cpds.setMaxPoolSize(maxSize);// 最大默认100个
		int inc = (maxSize - inititalSize) / 5;
		cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建个数

		int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_IDLE, "60"));
		cpds.setMaxIdleTime(maxIdle);// 最大空闲时间

		cpdsList.add(cpds);

		SqlLog.info("openzaly init mysql slave connection pool cpds={}", cpds.toString());
	}
}

Source File: C3P0PoolSlaveManager.java From openzaly with Apache License 2.0

5 votes

public static void initPool(Properties pro) throws Exception {
	List<String> jdbcUrlList = getSlaveDBUrl(pro);

	String userName = trimToNull(pro, JdbcConst.MYSQL_SLAVE_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_SLAVE_PASSWORD);

	if (jdbcUrlList == null || jdbcUrlList.size() == 0 || StringUtils.isAnyEmpty(userName, password)) {
		SqlLog.warn(
				"load database slave for mysql fail, system will user mysql master connection pool.urls={} user={} passwd={}",
				jdbcUrlList, userName, password);
		return;
	}

	cpdsList = new ArrayList<ComboPooledDataSource>();

	for (String jdbcUrl : jdbcUrlList) {
		ComboPooledDataSource cpds = new ComboPooledDataSource();
		cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
		cpds.setJdbcUrl(jdbcUrl);
		cpds.setUser(userName);
		cpds.setPassword(password);
		int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_INITIAL_SIZE, "10"));
		int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_SIZE, "100"));
		cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
		cpds.setMaxPoolSize(maxSize);// 最大默认100个
		int inc = (maxSize - inititalSize) / 5;
		cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建个数

		int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_IDLE, "60"));
		cpds.setMaxIdleTime(maxIdle);// 最大空闲时间

		cpdsList.add(cpds);

		SqlLog.info("openzaly init mysql slave connection pool cpds={}", cpds.toString());
	}
}

Source File: C3P0PoolSlaveManager.java From wind-im with Apache License 2.0

5 votes

public static void initPool(Properties pro) throws Exception {
	List<String> jdbcUrlList = getSlaveJdbcUrl(pro);

	String userName = trimToNull(pro, JdbcConst.MYSQL_SLAVE_USER_NAME);
	String password = trimToNull(pro, JdbcConst.MYSQL_SLAVE_PASSWORD);

	if (jdbcUrlList == null || jdbcUrlList.size() == 0 || StringUtils.isAnyEmpty(userName, password)) {
		SqlLog.warn(
				"load database slave for mysql fail, system will user mysql master connection pool.urls={} user={} passwd={}",
				jdbcUrlList, userName, password);
		return;
	}

	cpdsList = new ArrayList<ComboPooledDataSource>();

	for (String jdbcUrl : jdbcUrlList) {
		ComboPooledDataSource cpds = new ComboPooledDataSource();
		cpds.setDriverClass(MYSQL_JDBC_DRIVER); // loads the jdbc driver
		cpds.setJdbcUrl(jdbcUrl);
		cpds.setUser(userName);
		cpds.setPassword(password);
		int inititalSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_INITIAL_SIZE, "10"));
		int maxSize = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_SIZE, "100"));
		cpds.setInitialPoolSize(inititalSize);// 初始创建默认10个连接
		cpds.setMaxPoolSize(maxSize);// 最大默认100个
		int inc = (maxSize - inititalSize) / 5;
		cpds.setAcquireIncrement(Integer.max(1, inc));// 每次创建个数

		int maxIdle = Integer.valueOf(trimToNull(pro, JdbcConst.MYSQL_SLAVE_MAX_IDLE, "60"));
		cpds.setMaxIdleTime(maxIdle);// 最大空闲时间

		cpdsList.add(cpds);

		SqlLog.info("windchat init mysql slave connection pool cpds={}", cpds.toString());
	}
}

Source File: Database.java From SQLite-sync.com with BSD 3-Clause "New" or "Revised" License

5 votes

public Database() {

        String version = "";
        try {
            String resourceName = "project.properties";
            ClassLoader loader = Thread.currentThread().getContextClassLoader();
            Properties props = new Properties();
            try(InputStream resourceStream = loader.getResourceAsStream(resourceName)) {
                props.load(resourceStream);
            }
            version = props.getProperty("version");
        } catch (IOException ex){
            Logs.write(Logs.Level.ERROR, "GetVersionOfSQLiteSyncCOM: " + ex.getMessage());
        }
        SQLiteSyncVersion = version;

        SQLiteSyncConfig.Load();

        try {
            cpds = new ComboPooledDataSource();
            cpds.setDriverClass(SQLiteSyncConfig.DBDRIVER); //loads the jdbc driver
            cpds.setJdbcUrl(SQLiteSyncConfig.DBURL);
            cpds.setUser(SQLiteSyncConfig.DBUSER);
            cpds.setPassword(SQLiteSyncConfig.DBPASS);

            // the settings below are optional -- c3p0 can work with defaults
            cpds.setMinPoolSize(3);
            cpds.setAcquireIncrement(3);
            cpds.setMaxPoolSize(10);
            cpds.setIdleConnectionTestPeriod(300);
            cpds.setMaxIdleTime(240);
            cpds.setTestConnectionOnCheckin(false);
            cpds.setMaxStatements(2000);
            cpds.setMaxStatementsPerConnection(100);

        } catch (PropertyVetoException e){
            Logs.write(Logs.Level.ERROR, "Database constructor: " + e.getMessage());
        }
    }

Source File: ConnectionPoolManager.java From ezScrum with GNU General Public License v2.0

5 votes

private DataSource createDataSource(String driverClass, String url, String account, String password) {
	ComboPooledDataSource dataSource = new ComboPooledDataSource();
	try {
		dataSource.setDriverClass(driverClass);
		dataSource.setJdbcUrl(url);
		dataSource.setUser(account);
		dataSource.setPassword(password);

		dataSource.setMinPoolSize(10);
		dataSource.setMaxPoolSize(35);
		dataSource.setAcquireIncrement(0);
		dataSource.setMaxStatements(0);
		
		/** 最大允許的閒置時間(秒) */
		dataSource.setMaxIdleTime(300);
		/** 對閒置的連線進行Query測試設置(秒) */
		dataSource.setIdleConnectionTestPeriod(1800);
		
		/** Checkin connection時不檢查連線是否有效 */
		dataSource.setTestConnectionOnCheckin(false);
		/** Checkout connection時檢查連線的有效性*/
		dataSource.setTestConnectionOnCheckout(true);
		/** 進行test時使用的 Query設定*/
		dataSource.setPreferredTestQuery("SELECT 1;");
		/** Connection的最大有效時數(秒)*/
		dataSource.setMaxConnectionAge(28800);
		/** Connection checkout 之後的有效時數(毫秒)*/
		dataSource.setCheckoutTimeout(28800000);
	} catch (PropertyVetoException e) {
		e.printStackTrace();
	}
	mPoolMap.put(url, dataSource);
	return dataSource;
}

Source File: DataSourceUtils.java From hasor with Apache License 2.0

5 votes

public static DataSource loadDB(String dbID, Settings settings) throws Throwable {
    // 1.获取数据库连接配置信息
    String driverString = settings.getString(dbID + ".driver");
    String urlString = settings.getString(dbID + ".url");
    String userString = settings.getString(dbID + ".user");
    String pwdString = settings.getString(dbID + ".password");
    // 2.创建数据库连接池
    int poolMaxSize = 40;
    logger.info("C3p0 Pool Info maxSize is ‘%s’ driver is ‘%s’ jdbcUrl is‘%s’", poolMaxSize, driverString, urlString);
    ComboPooledDataSource dataSource = new ComboPooledDataSource();
    dataSource.setDriverClass(driverString);
    dataSource.setJdbcUrl(urlString);
    dataSource.setUser(userString);
    dataSource.setPassword(pwdString);
    dataSource.setMaxPoolSize(poolMaxSize);
    dataSource.setInitialPoolSize(1);
    // dataSource.setAutomaticTestTable("DB_TEST_ATest001");
    dataSource.setIdleConnectionTestPeriod(18000);
    dataSource.setCheckoutTimeout(3000);
    dataSource.setTestConnectionOnCheckin(true);
    dataSource.setAcquireRetryDelay(1000);
    dataSource.setAcquireRetryAttempts(30);
    dataSource.setAcquireIncrement(1);
    dataSource.setMaxIdleTime(25000);
    // 3.启用默认事务拦截器
    return dataSource;
}

Source File: C3P0DataSource.java From sqlg with MIT License

5 votes

public static C3P0DataSource create(final Configuration configuration) throws Exception {
    Preconditions.checkState(configuration.containsKey(SqlgGraph.JDBC_URL));
    Preconditions.checkState(configuration.containsKey("jdbc.username"));
    Preconditions.checkState(configuration.containsKey("jdbc.password"));

    String jdbcUrl = configuration.getString(SqlgGraph.JDBC_URL);
    SqlgPlugin sqlgPlugin = SqlgPlugin.load(jdbcUrl);
    SqlDialect sqlDialect = sqlgPlugin.instantiateDialect();

    String driver = sqlgPlugin.getDriverFor(jdbcUrl);
    String username = configuration.getString("jdbc.username");
    String password = configuration.getString("jdbc.password");

    ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
    comboPooledDataSource.setDriverClass(driver);
    comboPooledDataSource.setJdbcUrl(jdbcUrl);
    comboPooledDataSource.setMaxPoolSize(configuration.getInt("maxPoolSize", 100));
    comboPooledDataSource.setMaxIdleTime(configuration.getInt("maxIdleTime", 3600));
    comboPooledDataSource.setAcquireRetryAttempts(configuration.getInt("jdbc.acquireRetryAttempts", 30));
    comboPooledDataSource.setForceUseNamedDriverClass(true);
    if (!StringUtils.isEmpty(username)) {
        comboPooledDataSource.setUser(username);
    }

    if (!StringUtils.isEmpty(password)) {
        comboPooledDataSource.setPassword(password);
    }

    return new C3P0DataSource(jdbcUrl, comboPooledDataSource, sqlDialect);
}

Source File: C3P0DataSourceProvider.java From vertx-jdbc-client with Apache License 2.0

4 votes

@Override
public DataSource getDataSource(JsonObject config) throws SQLException {
  String url = config.getString("url");
  if (url == null) throw new NullPointerException("url cannot be null");
  String driverClass = config.getString("driver_class");
  String user = config.getString("user");
  String password = config.getString("password");
  Integer maxPoolSize = config.getInteger("max_pool_size");
  Integer initialPoolSize = config.getInteger("initial_pool_size");
  Integer minPoolSize = config.getInteger("min_pool_size");
  Integer maxStatements = config.getInteger("max_statements");
  Integer maxStatementsPerConnection = config.getInteger("max_statements_per_connection");
  Integer maxIdleTime = config.getInteger("max_idle_time");
  Integer acquireRetryAttempts = config.getInteger("acquire_retry_attempts");
  Integer acquireRetryDelay = config.getInteger("acquire_retry_delay");
  Boolean breakAfterAcquireFailure = config.getBoolean("break_after_acquire_failure");

  // If you want to configure any other C3P0 properties you can add a file c3p0.properties to the classpath
  ComboPooledDataSource cpds = new ComboPooledDataSource();
  cpds.setJdbcUrl(url);
  if (driverClass != null) {
    try {
      cpds.setDriverClass(driverClass);
    } catch (PropertyVetoException e) {
      throw new IllegalArgumentException(e);
    }
  }
  if (user != null) {
    cpds.setUser(user);
  }
  if (password != null) {
    cpds.setPassword(password);
  }
  if (maxPoolSize != null) {
    cpds.setMaxPoolSize(maxPoolSize);
  }
  if (minPoolSize != null) {
    cpds.setMinPoolSize(minPoolSize);
  }
  if (initialPoolSize != null) {
    cpds.setInitialPoolSize(initialPoolSize);
  }
  if (maxStatements != null) {
    cpds.setMaxStatements(maxStatements);
  }
  if (maxStatementsPerConnection != null) {
    cpds.setMaxStatementsPerConnection(maxStatementsPerConnection);
  }
  if (maxIdleTime != null) {
    cpds.setMaxIdleTime(maxIdleTime);
  }
  if(acquireRetryAttempts != null){
    cpds.setAcquireRetryAttempts(acquireRetryAttempts);
  }
  if(acquireRetryDelay != null){
    cpds.setAcquireRetryDelay(acquireRetryDelay);
  }
  if(breakAfterAcquireFailure != null){
    cpds.setBreakAfterAcquireFailure(breakAfterAcquireFailure);
  }
  return cpds;
}

Source File: H2Db.java From hortonmachine with GNU General Public License v3.0

4 votes

public boolean open( String dbPath ) throws Exception {
    this.mDbPath = dbPath;

    connectionData = new ConnectionData();
    connectionData.connectionLabel = dbPath;
    connectionData.connectionUrl = new String(dbPath);
    connectionData.user = user;
    connectionData.password = password;
    connectionData.dbType = getType().getCode();

    boolean dbExists = false;
    if (dbPath != null) {
        File dbFile = new File(dbPath + "." + EDb.H2.getExtension());
        if (dbFile.exists()) {
            if (mPrintInfos)
                Logger.INSTANCE.insertInfo(null, "Database exists");
            dbExists = true;
        }
        if (dbPath.toLowerCase().startsWith("tcp")) {
            // no way to check, assume it exists
            dbExists = true;

            // also cleanup path
            int first = dbPath.indexOf('/');
            int second = dbPath.indexOf('/', first + 1);
            int third = dbPath.indexOf('/', second + 1);
            int lastSlash = dbPath.indexOf('/', third + 1);
            if (lastSlash != -1) {
                mDbPath = dbPath.substring(lastSlash, dbPath.length());
            }
        }
    } else {
        dbPath = "mem:syntax";
        dbExists = false;
    }

    String jdbcUrl = EDb.H2.getJdbcPrefix() + dbPath;

    if (makePooled) {
        Properties p = new Properties(System.getProperties());
        p.put("com.mchange.v2.log.MLog", "com.mchange.v2.log.FallbackMLog");
        p.put("com.mchange.v2.log.FallbackMLog.DEFAULT_CUTOFF_LEVEL", "OFF");
        System.setProperties(p);

        comboPooledDataSource = new ComboPooledDataSource();
        comboPooledDataSource.setDriverClass(DRIVER_CLASS);
        comboPooledDataSource.setJdbcUrl(jdbcUrl);
        if (user != null && password != null) {
            comboPooledDataSource.setUser(user);
            comboPooledDataSource.setPassword(password);
        }
        comboPooledDataSource.setInitialPoolSize(10);
        comboPooledDataSource.setMinPoolSize(5);
        comboPooledDataSource.setAcquireIncrement(5);
        comboPooledDataSource.setMaxPoolSize(30);
        comboPooledDataSource.setMaxStatements(100);
        comboPooledDataSource.setMaxIdleTime(14400); // 4 hours by default

        // comboPooledDataSource.setCheckoutTimeout(2000);
        comboPooledDataSource.setAcquireRetryAttempts(1);
        // comboPooledDataSource.setBreakAfterAcquireFailure(false);
        // TODO remove after debug
        // comboPooledDataSource.setUnreturnedConnectionTimeout(180);

    } else {
        if (user != null && password != null) {
            singleJdbcConn = DriverManager.getConnection(jdbcUrl, user, password);
        } else {
            singleJdbcConn = DriverManager.getConnection(jdbcUrl);
        }
    }
    if (mPrintInfos) {
        String[] dbInfo = getDbInfo();
        Logger.INSTANCE.insertDebug(null, "H2 Version: " + dbInfo[0] + "(" + dbPath + ")");
    }
    return dbExists;
}

Source File: DefaultDataSourceManager.java From dhis2-core with BSD 3-Clause "New" or "Revised" License

4 votes

private List<DataSource> getReadOnlyDataSources()
{
    String mainUser = config.getProperty( ConfigurationKey.CONNECTION_USERNAME );
    String mainPassword = config.getProperty( ConfigurationKey.CONNECTION_PASSWORD );
    String driverClass = config.getProperty( CONNECTION_DRIVER_CLASS );
    String maxPoolSize = config.getPropertyOrDefault( CONNECTION_POOL_MAX_SIZE, DEFAULT_POOL_SIZE );

    Properties props = config.getProperties();

    List<DataSource> dataSources = new ArrayList<>();

    for ( int i = 1; i <= MAX_READ_REPLICAS; i++ )
    {
        String jdbcUrl = props.getProperty( String.format( FORMAT_CONNECTION_URL, i ) );
        String user = props.getProperty( String.format( FORMAT_CONNECTION_USERNAME, i ) );
        String password = props.getProperty( String.format( FORMAT_CONNECTION_PASSWORD, i ) );

        user = StringUtils.defaultIfEmpty( user, mainUser );
        password = StringUtils.defaultIfEmpty( password, mainPassword );

        if ( ObjectUtils.allNonNull( jdbcUrl, user, password ) )
        {
            try
            {
                ComboPooledDataSource ds = new ComboPooledDataSource();

                ds.setDriverClass( driverClass );
                ds.setJdbcUrl( jdbcUrl );
                ds.setUser( user );
                ds.setPassword( password );
                ds.setMaxPoolSize( Integer.parseInt( maxPoolSize ) );
                ds.setAcquireIncrement( VAL_ACQUIRE_INCREMENT );
                ds.setMaxIdleTime( VAL_MAX_IDLE_TIME );

                dataSources.add( ds );

                log.info( String.format( "Found read replica, index: '%d', connection URL: '%s''", i, jdbcUrl ) );

                testConnection( ds );
            }
            catch ( PropertyVetoException ex )
            {
                throw new IllegalArgumentException( "Invalid configuration of read replica: " + jdbcUrl, ex );
            }
        }
    }

    log.info( "Read only configuration initialized, read replicas found: " + dataSources.size() );

    return dataSources;
}

Source File: PoolingConnectionProvider.java From lams with GNU General Public License v2.0

4 votes

/**
 * Create the underlying C3PO ComboPooledDataSource with the 
 * default supported properties.
 * @throws SchedulerException 
 */
private void initialize(
    String dbDriver, 
    String dbURL, 
    String dbUser,
    String dbPassword, 
    int maxConnections, 
    int maxStatementsPerConnection, 
    String dbValidationQuery,
    boolean validateOnCheckout,
    int idleValidationSeconds,
    int maxIdleSeconds) throws SQLException, SchedulerException {
    if (dbURL == null) {
        throw new SQLException(
            "DBPool could not be created: DB URL cannot be null");
    }
    
    if (dbDriver == null) {
        throw new SQLException(
            "DBPool '" + dbURL + "' could not be created: " +
            "DB driver class name cannot be null!");
    }
    
    if (maxConnections < 0) {
        throw new SQLException(
            "DBPool '" + dbURL + "' could not be created: " + 
            "Max connections must be greater than zero!");
    }

    
    datasource = new ComboPooledDataSource(); 
    try {
        datasource.setDriverClass(dbDriver);
    } catch (PropertyVetoException e) {
        throw new SchedulerException("Problem setting driver class name on datasource: " + e.getMessage(), e);
    }  
    datasource.setJdbcUrl(dbURL); 
    datasource.setUser(dbUser); 
    datasource.setPassword(dbPassword);
    datasource.setMaxPoolSize(maxConnections);
    datasource.setMinPoolSize(1);
    datasource.setMaxIdleTime(maxIdleSeconds);
    datasource.setMaxStatementsPerConnection(maxStatementsPerConnection);
    
    if (dbValidationQuery != null) {
        datasource.setPreferredTestQuery(dbValidationQuery);
        if(!validateOnCheckout)
            datasource.setTestConnectionOnCheckin(true);
        else
            datasource.setTestConnectionOnCheckout(true);
        datasource.setIdleConnectionTestPeriod(idleValidationSeconds);
    }
}

Source File: L2DatabaseFactory.java From L2jBrasil with GNU General Public License v3.0

4 votes

public L2DatabaseFactory() throws SQLException
{
	try
	{
		if (Config.DATABASE_MAX_CONNECTIONS < 2)
           {
               Config.DATABASE_MAX_CONNECTIONS = 2;
               _log.warning("at least " + Config.DATABASE_MAX_CONNECTIONS + " db connections are required.");
           }

		_source = new ComboPooledDataSource();
		_source.setAutoCommitOnClose(true);

		_source.setInitialPoolSize(10);
		_source.setMinPoolSize(10);
		_source.setMaxPoolSize(Config.DATABASE_MAX_CONNECTIONS);

		_source.setAcquireRetryAttempts(0); // try to obtain connections indefinitely (0 = never quit)
		_source.setAcquireRetryDelay(500);  // 500 miliseconds wait before try to acquire connection again
		_source.setCheckoutTimeout(0);      // 0 = wait indefinitely for new connection
		// if pool is exhausted
		_source.setAcquireIncrement(5);     // if pool is exhausted, get 5 more connections at a time
		// cause there is a "long" delay on acquire connection
		// so taking more than one connection at once will make connection pooling
		// more effective.

		// this "connection_test_table" is automatically created if not already there
		_source.setAutomaticTestTable("connection_test_table");
		_source.setTestConnectionOnCheckin(false);

		// testing OnCheckin used with IdleConnectionTestPeriod is faster than  testing on checkout

		_source.setIdleConnectionTestPeriod(3600); // test idle connection every 60 sec
		_source.setMaxIdleTime(0); // 0 = idle connections never expire
		// *THANKS* to connection testing configured above
		// but I prefer to disconnect all connections not used
		// for more than 1 hour

		// enables statement caching,  there is a "semi-bug" in c3p0 0.9.0 but in 0.9.0.2 and later it's fixed
		_source.setMaxStatementsPerConnection(100);

		_source.setBreakAfterAcquireFailure(false);  // never fail if any way possible
		// setting this to true will make
		// c3p0 "crash" and refuse to work
		// till restart thus making acquire
		// errors "FATAL" ... we don't want that
		// it should be possible to recover
		_source.setDriverClass(Config.DATABASE_DRIVER);
		_source.setJdbcUrl(Config.DATABASE_URL);
		_source.setUser(Config.DATABASE_LOGIN);
		_source.setPassword(Config.DATABASE_PASSWORD);

		/* Test the connection */
		_source.getConnection().close();

		if (Config.DEBUG) _log.fine("Database Connection Working");

		if (Config.DATABASE_DRIVER.toLowerCase().contains("microsoft"))
               _providerType = ProviderType.MsSql;
           else
               _providerType = ProviderType.MySql;
	}
	catch (SQLException x)
	{
		if (Config.DEBUG) _log.fine("Database Connection FAILED");
		// rethrow the exception
		throw x;
	}
	catch (Exception e)
	{
		if (Config.DEBUG) _log.fine("Database Connection FAILED");
		throw new SQLException("could not init DB connection:"+e);
	}
}

Source File: IdServiceFactoryBean.java From vesta-id-generator with Apache License 2.0

4 votes

private IdService constructDbIdService(String dbUrl, String dbName,
                                       String dbUser, String dbPassword) {
    log.info(
            "Construct Db IdService dbUrl {} dbName {} dbUser {} dbPassword {}",
            dbUrl, dbName, dbUser, dbPassword);

    ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();

    String jdbcDriver = "com.mysql.jdbc.Driver";
    try {
        comboPooledDataSource.setDriverClass(jdbcDriver);
    } catch (PropertyVetoException e) {
        log.error("Wrong JDBC driver {}", jdbcDriver);
        log.error("Wrong JDBC driver error: ", e);
        throw new IllegalStateException("Wrong JDBC driver ", e);
    }

    comboPooledDataSource.setMinPoolSize(5);
    comboPooledDataSource.setMaxPoolSize(30);
    comboPooledDataSource.setIdleConnectionTestPeriod(20);
    comboPooledDataSource.setMaxIdleTime(25);
    comboPooledDataSource.setBreakAfterAcquireFailure(false);
    comboPooledDataSource.setCheckoutTimeout(3000);
    comboPooledDataSource.setAcquireRetryAttempts(50);
    comboPooledDataSource.setAcquireRetryDelay(1000);

    String url = String
            .format("jdbc:mysql://%s/%s?useUnicode=true&amp;characterEncoding=UTF-8&amp;autoReconnect=true",
                    dbUrl, dbName);

    comboPooledDataSource.setJdbcUrl(url);
    comboPooledDataSource.setUser(dbUser);
    comboPooledDataSource.setPassword(dbPassword);

    JdbcTemplate jdbcTemplate = new JdbcTemplate();
    jdbcTemplate.setLazyInit(false);
    jdbcTemplate.setDataSource(comboPooledDataSource);

    DbMachineIdProvider dbMachineIdProvider = new DbMachineIdProvider();
    dbMachineIdProvider.setJdbcTemplate(jdbcTemplate);
    dbMachineIdProvider.init();

    IdServiceImpl idServiceImpl = new IdServiceImpl();
    idServiceImpl.setMachineIdProvider(dbMachineIdProvider);
    if (genMethod != -1)
        idServiceImpl.setGenMethod(genMethod);
    if (type != -1)
        idServiceImpl.setType(type);
    if (version != -1)
        idServiceImpl.setVersion(version);
    idServiceImpl.init();

    return idServiceImpl;
}

Java Code Examples for com.mchange.v2.c3p0.ComboPooledDataSource#setMaxIdleTime()