Examples of org.apache.turbine.util.db.pool.ConnectionPool

org.apache.turbine.util.db.pool.ConnectionPool
This class implements a simple connection pooling scheme. Multiple pools are available through use of the PoolBrokerService. @author Costas Stergiou @author Frank Y. Kim @author Brett McLaughlin @author Greg Ritter @author Daniel L. Rall @author Paul O'Leary @author Magn�s ��r Torfason @author Jon S. Stevens @version $Id$

                                      String url,
                                      String username,
                                      String password)
        throws Exception
    {
        ConnectionPool pool = null;
        url = url.trim();


        // Quick (non-sync) check for the pool we want.
        // NOTE: Here we must not call getPool(), since the pool
        // is almost certainly not defined in the properties file
        pool = (ConnectionPool) pools.get(url + username);
        if ( pool == null )
        {
            registerPool(url + username, driver,  url, username, password);
            pool = (ConnectionPool) pools.get(url + username);
        }


        return pool.getConnection();
    }

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    public void releaseConnection(DBConnection dbconn)
        throws Exception
    {
        if ( dbconn != null )
        {
            ConnectionPool pool = dbconn.getPool();
            if ( pools.containsValue( pool ) )
            {
                pool.releaseConnection( dbconn );
            }
        }
    }

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            {
                // ... sync and look again to avoid race collisions.
                if ( !pools.containsKey(name) )
                {
                    // Still not there.  Create and add.
                    ConnectionPool pool =
                        new ConnectionPool(driver, 
                                           url, 
                                           username, 
                                           password, 
                                           maxCons,expiryTime);
                    pools.put( name, pool );

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     * @exception Exception A generic exception.
     */
    private ConnectionPool getPool(String name)
        throws Exception
    {
        ConnectionPool pool = (ConnectionPool) pools.get(name);


        // If the pool is not in the Hashtable, we must register it.
        if ( pool == null )
        {
            registerPool( name,

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                // Loop through all pools and log.
                Iterator poolIter = pools.keySet().iterator();
                while ( poolIter.hasNext() )
                {
                    String poolName = (String) poolIter.next();
                    ConnectionPool pool = (ConnectionPool) pools.get(poolName);
                    buf.setLength(0);
                    buf.append(poolName).append(" (in + out = total): ")
                        .append(pool.getNbrAvailable()).append(" + ")
                        .append(pool.getNbrCheckedOut()).append(" = ")
                        .append(pool.getTotalCount());
                    Log.info("database",buf.toString());
                }


                // Wait for a bit.
                try

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                                      String url,
                                      String username,
                                      String password)
        throws Exception
    {
        ConnectionPool pool = null;
        url = url.trim();


        // Quick (non-sync) check for the pool we want.
        // NOTE: Here we must not call getPool(), since the pool
        // is almost certainly not defined in the properties file
        pool = (ConnectionPool) pools.get(url + username);
        if ( pool == null )
        {
            registerPool(url + username, driver,  url, username, password);
            pool = (ConnectionPool) pools.get(url + username);
        }


        return pool.getConnection();
    }

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    public void releaseConnection(DBConnection dbconn)
        throws Exception
    {
        if ( dbconn != null )
        {
            ConnectionPool pool = dbconn.getPool();
            if ( pools.containsValue( pool ) )
            {
                pool.releaseConnection( dbconn );
            }
        }
    }

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            {
                // ... sync and look again to avoid race collisions.
                if ( !pools.containsKey(name) )
                {
                    // Still not there.  Create and add.
                    ConnectionPool pool =
                        new ConnectionPool(driver,
                                           url,
                                           username,
                                           password,
                                           maxCons,expiryTime);
                    pools.put( name, pool );

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     * @exception Exception A generic exception.
     */
    private ConnectionPool getPool(String name)
        throws Exception
    {
        ConnectionPool pool = (ConnectionPool) pools.get(name);


        // If the pool is not in the Hashtable, we must register it.
        if ( pool == null )
        {
            registerPool( name,

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                // Loop through all pools and log.
                Iterator poolIter = pools.keySet().iterator();
                while ( poolIter.hasNext() )
                {
                    String poolName = (String) poolIter.next();
                    ConnectionPool pool = (ConnectionPool) pools.get(poolName);
                    buf.setLength(0);
                    buf.append(poolName).append(" (in + out = total): ")
                        .append(pool.getNbrAvailable()).append(" + ")
                        .append(pool.getNbrCheckedOut()).append(" = ")
                        .append(pool.getTotalCount());
                    Log.info("database",buf.toString());
                }


                // Wait for a bit.
                try

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Related Classes of org.apache.turbine.util.db.pool.ConnectionPool

org.apache.turbine.services.db.TurbinePoolBrokerService

org.apache.turbine.services.db.TurbinePoolBrokerService$Monitor

javax.sql.PooledConnection

java.util.Stack

java.sql.SQLException

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