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From henn...@apache.org
Subject cvs commit: jakarta-turbine-torque/src/java/org/apache/torque/pool ConnectionPool.java
Date Thu, 09 Jan 2003 13:52:09 GMT
henning     2003/01/09 05:52:09

  Modified:    src/java/org/apache/torque/pool ConnectionPool.java
  Log:
  Cleaned up the calculation of the various C'tor related timeouts and
  variables. Introduced a few constants to make this clearer. Start the
  thread for monitoring only if the log Interval is > 0.
  
  Revision  Changes    Path
  1.20      +42 -37    jakarta-turbine-torque/src/java/org/apache/torque/pool/ConnectionPool.java
  
  Index: ConnectionPool.java
  ===================================================================
  RCS file: /home/cvs/jakarta-turbine-torque/src/java/org/apache/torque/pool/ConnectionPool.java,v
  retrieving revision 1.19
  retrieving revision 1.20
  diff -u -r1.19 -r1.20
  --- ConnectionPool.java	9 Jan 2003 13:40:03 -0000	1.19
  +++ ConnectionPool.java	9 Jan 2003 13:52:09 -0000	1.20
  @@ -84,6 +84,16 @@
    */
   class ConnectionPool implements ConnectionEventListener
   {
  +
  +    /** Default maximum Number of connections from this pool: One */
  +    public static final int DEFAULT_MAX_CONNECTIONS = 1;
  +
  +    /** Default Expiry Time for a pool: 1 hour */
  +    public static final int DEFAULT_EXPIRY_TIME = 60 * 60 * 1000;
  +
  +    /** Default Connect Wait Timeout: 10 Seconds */
  +    public static final int DEFAULT_CONNECTION_WAIT_TIMEOUT = 10 * 1000;
  +
       /**
        * Pool containing database connections.
        */
  @@ -112,12 +122,12 @@
       /**
        * The maximum number of database connections that can be created.
        */
  -    private int maxConnections;
  +    private int maxConnections = DEFAULT_MAX_CONNECTIONS;
   
       /**
        * The amount of time in milliseconds that a connection will be pooled.
        */
  -    private int expiryTime; // 1 hour
  +    private int expiryTime = DEFAULT_EXPIRY_TIME;
   
       /**
        * Counter that keeps track of the number of threads that are in
  @@ -132,7 +142,7 @@
           = Category.getInstance(ConnectionPool.class.getName());
   
       /** Interval (in seconds) that the monitor thread reports the pool state */
  -    private int logInterval;
  +    private int logInterval = 0;
   
       /** Monitor thread reporting the pool state */
       private Monitor monitor;
  @@ -141,7 +151,7 @@
        * Amount of time a thread asking the pool for a cached connection will
        * wait before timing out and throwing an error.
        */
  -    private long connectionWaitTimeout;
  +    private long connectionWaitTimeout = DEFAULT_CONNECTION_WAIT_TIMEOUT;
   
       /** The ConnectionPoolDataSource  */
       private ConnectionPoolDataSource cpds;
  @@ -175,40 +185,35 @@
           this.cpds = cpds;
           this.username = username;
           this.password = password;
  -        if (maxConnections > 0)
  -        {
  -            this.maxConnections = maxConnections;
  -        }
  -        else
  -        {
  -            this.maxConnections = 1;
  -        }
  -        if (expiryTime > 0)
  -        {
  -            this.expiryTime = expiryTime * 1000;
  -        }
  -        else
  -        {
  -            this.expiryTime = 3600 * 1000; // one hour
  -        }
  -        if (connectionWaitTimeout > 0)
  -        {
  -            this.connectionWaitTimeout = connectionWaitTimeout * 1000;
  -        }
  -        else
  +
  +        this.maxConnections =
  +            (maxConnections > 0) ? maxConnections : DEFAULT_MAX_CONNECTIONS;
  +
  +        this.expiryTime =
  +            1000 * ((expiryTime > 0) ? expiryTime : DEFAULT_EXPIRY_TIME);
  +
  +        this.connectionWaitTimeout =
  +            1000 * ((connectionWaitTimeout > 0)
  +                    ? connectionWaitTimeout 
  +                    : DEFAULT_CONNECTION_WAIT_TIMEOUT);
  +
  +        this.logInterval = 1000 * logInterval;
  +
  +        if (logInterval > 0)
           {
  -            this.connectionWaitTimeout = 10 * 1000; // ten seconds
  -        }
  -        this.logInterval = logInterval * 1000;
  +            category.debug("Starting Pool Monitor Thread with Log Interval " 
  +                           + logInterval + " Milliseconds");
   
  -        // Create monitor thread
  -        monitor = new Monitor();
  -        // Indicate that this is a system thread. JVM will quit only when there
  -        // are no more active user threads. Settings threads spawned internally
  -        // by Torque as daemons allows commandline applications using Torque
  -        // to terminate in an orderly manner.
  -        monitor.setDaemon(true);
  -        monitor.start();
  +            // Create monitor thread
  +            monitor = new Monitor();
  +
  +            // Indicate that this is a system thread. JVM will quit only
  +            // when there are no more active user threads. Settings threads
  +            // spawned internally by Torque as daemons allows commandline
  +            // applications using Torque to terminate in an orderly manner.
  +            monitor.setDaemon(true);
  +            monitor.start();
  +        }
       }
   
       /**
  
  
  

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