Servlets and OC4J

Hi!
I need help. I'm working with OC4J 9.0.2.0.0a behind Apache. In my application a have to obtain data of DataBase and show it in a fdf. To do that i have done a class that obtains the data and a servlet that show it in a fdf using classes of Adobe. The Adobe jar's name is jFdfTk. The servlet runs ok at port 7777, but when i change to port 80 the fdf doesn't show data. I can't understand why.
Does anyone have the same problem??
Can anyone help me??
Does anyone know why??
Thanks!

I see now that I can use the old method of JNDI
lookup with the 3rd party messaging from a web
container, I just can't use the java:comp/resource/MQSeries logical JNDI location.
document: oracle 9ias Container for J2EE,
Services Guide
Release 2(9.0.3)
Aug 2002
Part No A97690-01
Chapter 9 Page 9-2
I am having trouble with this statement;
The ResourceProvider interface enables you to plug in
third-party message
providers for JMS connections. For Oracle JMS, this
allows EJBs, servlets, and OC4J
clients to access many different queue
implementations.
(OK good so far,)
With third-party message
providers, only EJBS can access queue
implementations. The resources are available
under java:comp/resource/ as the default JMS
resources.
WHAT? I can't do asynchronous messaging from a web
App to a MDB with a 3rd party JMS implementation?
What gives?
Can someone tell me this is not true please

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    Message was edited by:
    Mynameisbt

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    Message was edited by:
    Mynameisbt

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    --Z3r0CooL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

    Hey,
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    /************************ DatabaseControler **************************/
    import java.sql.*;
    import java.util.*;
    import com.softnet.database.DatabaseConnectionPool;
    import com.softnet.database.DatabaseSettings;
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         private int minNumberOfConnections = 1;
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         private int maxNumberOfConnections = -1;
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              this.maxNumberOfConnections = maxNumberOfConnections;
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              else
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
         public DatabaseController() {}
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         public DatabaseSettings getDatabaseSettings()
              return databaseSettings;
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              this.databaseSettings = databaseSettings;
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         public boolean getConnectionPooling()
              return useConnectionPooling;
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              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
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                   if(connectionPool == null)
                        connectionPool = new DatabaseConnectionPool(databaseSettings, minNumberOfConnections, maxNumberOfConnections);
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                        connectionPool = null;
         //Return if there connected
         public boolean isConnected()
              boolean isConnected;
              if(databaseConnection != null)
                   isConnected = true;
              else
                   isConnected = false;
              return isConnected;
         //Used to connect to database or get a connection for the connection pool
         public void connect()
              if(databaseDriverState == false)
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
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              if(databaseConnection == null && databaseDriverState == true)
                   if(useConnectionPooling == false)
                        try
                             databaseConnection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                        catch (SQLException sqle)
                             //Raise event
                             raiseDatabaseEvent("DatabaseController: Error connecting to database. \nERROR: " + sqle.getMessage());
                             databaseConnection = null;
                   else
                        databaseConnection = connectionPool.getConnection();
         //Used to disconnect from the database or give back the connection to the connection pool
         public void disconnect()
              if(databaseConnection != null)
                   if(useConnectionPooling == false)
                        try
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                             databaseConnection.close();
                        catch(SQLException ignore) {}
                        finally
                             databaseConnection = null;
                   else
                        connectionPool.returnConnection(databaseConnection);
                        databaseConnection = null;
         public ResultSet executeDatabaseQuery(String sSQL)
              ResultSet databaseResult = null;
              if(databaseConnection != null)
                   try
                        Statement databaseStatement = databaseConnection.createStatement();
                        databaseResult = databaseStatement.executeQuery(sSQL);
                   catch(SQLException sqle)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error executing database query.\nSQL: " + sSQL + "\nERROR: " + sqle.getMessage());
              return databaseResult;
         public int executeDatabaseUpdate(String sSQL)
              int rowsAffected = -1;
              if(databaseConnection != null)
                   try
                        Statement databaseStatement = databaseConnection.createStatement();
                        rowsAffected = databaseStatement.executeUpdate(sSQL);
                   catch(SQLException sqle)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error executing database update.\nSQL: " + sSQL + "\nERROR: " + sqle.getMessage());
              return rowsAffected;
         //Used to load the Database Driver
         private boolean loadDatabaseDriver(String databaseDriver)
              boolean driverLoaded;
              if(databaseDriver.equals("") == false)
                   try
                        //Load Database Driver
                        Class.forName(databaseDriver).newInstance();
                        driverLoaded = true;
                   catch (Exception e)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error loading database driver. \nERROR: " + e.getMessage());
                        driverLoaded = false;
              else
                   driverLoaded = false;
              return driverLoaded;
         //Wrap the DatabaseConnectionPool Error to the DatabaseController
         public void databaseEventOccurred(DatabaseEvent de)
              raiseDatabaseEvent(de.getErrorMessage());
         //Event Handling Code
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    public synchronized void addDatabaseListener(DatabaseListener databaseControllerListener)
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    //Used to remove a listener from the list (Its sync'd so you can change the listeners when firing an event)
    public synchronized void removeDatabaseListener(DatabaseListener databaseControllerListener)
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    //Used to send the raise event to the listeners
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    Iterator listeners = databaseControllerListeners.iterator();
    while(listeners.hasNext())
         DatabaseListener listener = (DatabaseListener) listeners.next();
    listener.databaseEventOccurred(databaseEvent);
    /********************* DatabaseConnectionPool **************/
    package com.softnet.database;
    import java.io.*;
    import java.sql.*;
    import java.util.*;
    import com.softnet.database.*;
    import com.softnet.database.DatabaseSettings;
    public class DatabaseConnectionPool
         //min number of connections
         private int minNumberOfConnections = 1;
         //max number of connections -1 is unlimited
         private int maxNumberOfConnections = -1;
         //Store the connections
         protected Hashtable databaseConnections = null;
         //Database Info
         protected DatabaseSettings databaseSettings;
         //to hold Driver state
         private boolean databaseDriverState = false;
         //To hold connection checker
         private DatabaseConnectionCheck connectionChecker = null;
         //Used to hold the DatabaseConnectionPool listeners
         private List databaseConnectionPoolListeners = new ArrayList();
         public DatabaseConnectionPool(DatabaseSettings databaseSettings, int minNumberOfConnections, int maxNumberOfConnections)
              this.databaseSettings = databaseSettings;
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
              //Load Driver
              databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
              //Create connection
              createConnections();
         public DatabaseConnectionPool(int minNumberOfConnections, int maxNumberOfConnections)
              this.minNumberOfConnections = minNumberOfConnections;
              this.maxNumberOfConnections = maxNumberOfConnections;
         //Database Settings Get/Set
         public DatabaseSettings getDatabaseSettings()
              return databaseSettings;
         public void setDatabaseSettings(DatabaseSettings databaseSettings)
              this.databaseSettings = databaseSettings;
         //Driver State Get
         public boolean getDatabaseDriverState()
              return databaseDriverState;
         public void createConnections()
              if(databaseDriverState == false)
                   databaseDriverState = loadDatabaseDriver(databaseSettings.getDatabaseDriver());
              //Create all connections and load the minimum in the Hashtable
              if(databaseConnections == null)
                   if(databaseDriverState == true && minNumberOfConnections != 0)
                        databaseConnections = new Hashtable();
                        for(int i = 0; i < minNumberOfConnections; i++)
                             try
                                  databaseConnections.put(DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword()), Boolean.FALSE);
                             catch(SQLException sqle)
                                  //Problem break loop and destroy any connections
                                  destroyConnections();
                                  //Raise event
                                  raiseDatabaseEvent("DatabaseConnectionPool: Error creating database connections. \nERROR: " + sqle.getMessage());
                                  break;
              //If no connection check exists create one
              if(connectionChecker == null)
                   connectionChecker = new DatabaseConnectionCheck(this);
                   connectionChecker.start();
         public Connection getConnection()
              Connection connection = null;
              boolean errorWithConnection = false;
              Enumeration connections = databaseConnections.keys();
              synchronized (databaseConnections)
                   while(connections.hasMoreElements())
                        errorWithConnection = false;
                        connection = (Connection) connections.nextElement();
                        Boolean state = (Boolean) databaseConnections.get(connection);
                        //If connection is not used, use it.
                        if(state == Boolean.FALSE)
                             try
                                  connection.setAutoCommit(true);
                             catch(SQLException e)
                                  //Problem with connection remove connection and replace it
                                  databaseConnections.remove(connection);
                                  try
                                       connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                                  catch(SQLException sqle)
                                       errorWithConnection = true;
                             if(errorWithConnection == false)
                                  // Update the Hashtable to show this one's taken
                                  databaseConnections.put(connection, Boolean.TRUE);
                                  // Return the connection
                                  return connection;
                   //All connections being used check to max to see if we can make a new one
                   if(maxNumberOfConnections == -1 || maxNumberOfConnections > databaseConnections.size())
                        try
                             connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                        catch(SQLException sqle)
                             errorWithConnection = true;
                        if(errorWithConnection == false)
                             databaseConnections.put(connection, Boolean.TRUE);
                             return connection;
              //If not connections free and max connections reached wait for a free connection
              return getConnection();
         public void returnConnection(Connection connection)
              boolean errorWithConnection = false;
              //Make sure connection still works
              try
                   connection.setAutoCommit(true);
              catch(SQLException e)
                   //Problem with connection remove connection and replace it
                   databaseConnections.remove(connection);
                   try
                        connection = DriverManager.getConnection(databaseSettings.getDatabaseURL(), databaseSettings.getUserName(), databaseSettings.getUserPassword());
                   catch(SQLException sqle)
                        errorWithConnection = true;     
              if(errorWithConnection == false)
                   databaseConnections.put(connection, Boolean.FALSE);
         public void destroyConnections()
              Connection connection = null;
              if(databaseConnections != null)
                   //Close all connections
                   Enumeration connections = databaseConnections.keys();
                   while (connections.hasMoreElements())
                        connection = (Connection) connections.nextElement();
                        try
                             connection.close();
                        catch(SQLException ignore) {}
                   //Free up hashtable
                   databaseConnections = null;
         private boolean loadDatabaseDriver(String databaseDriver)
              boolean driverLoaded;
              if(databaseDriver.equals("") == false)
                   try
                        //Load Database Driver
                        Class.forName(databaseDriver);
                        driverLoaded = true;
                   catch (ClassNotFoundException cnfe)
                        //Raise event
                        raiseDatabaseEvent("DatabaseController: Error loading database driver. \nERROR: " + cnfe.getMessage());
                        driverLoaded = false;
              else
                   driverLoaded = false;
              return driverLoaded;
         //Event Handling Code
         //Used to add database listeners (Its sync'd so you can change the listeners when firing an event)
    public synchronized void addDatabaseListener(DatabaseListener databaseConnectionPoolListener)
    databaseConnectionPoolListeners.add(databaseConnectionPoolListener);
    //Used to remove a listener from the list (Its sync'd so you can change the listeners when firing an event)
    public synchronized void removeDatabaseListener(DatabaseListener databaseConnectionPoolListener)
    databaseConnectionPoolListeners.remove(databaseConnectionPoolListener);
    //Used to send the raise event to the listeners
    private synchronized void raiseDatabaseEvent(String databaseError)
    DatabaseEvent databaseEvent = new DatabaseEvent(this, databaseError);
    Iterator listeners = databaseConnectionPoolListeners.iterator();
    while(listeners.hasNext())
         DatabaseListener listener = (DatabaseListener) listeners.next();
    listener.databaseEventOccurred(databaseEvent);
    class DatabaseConnectionCheck extends Thread
         private DatabaseConnectionPool connectionPool;
         DatabaseConnectionCheck(DatabaseConnectionPool connectionPool)
              this.connectionPool = connectionPool;
         public void run()
              try
                   while(true)
                        //check threads every 30 seconds
                        this.sleep(300000);
                        if(connectionPool.databaseConnections != null)
                             Connection connection = null;
                             Enumeration connections = connectionPool.databaseConnections.keys();
                             synchronized (connectionPool.databaseConnections)
                                  while(connections.hasMoreElements())
                                       connection = (Connection) connections.nextElement();
                                       Boolean state = (Boolean) connectionPool.databaseConnections.get(connection);
                                       //If connection is not used, use it.
                                       if(state == Boolean.FALSE)
                                            try
                                                 connection.setAutoCommit(true);
                                            catch(SQLException e)
                                                 //Problem with connection remove connection and replace it
                                                 connectionPool.databaseConnections.remove(connection);
                                                 try
                                                      connection = DriverManager.getConnection(connectionPool.databaseSettings.getDatabaseURL(), connectionPool.databaseSettings.getUserName(), connectionPool.databaseSettings.getUserPassword());
                                                 catch(SQLException sqle)
                                                      connection = null;
                                                 // Update the Hashtable with new connection if its not null
                                                 if(connection != null)
                                                      connectionPool.databaseConnections.put(connection, Boolean.FALSE);
              catch(InterruptedException ignored) {}     
    Basicly the why it works is the connection pool hold the database connections. When the user needs a connection they use the database controller to request a connection (By create a instance and called the connect() method) and the connection is either created or grabed from the connection pool. After the user is done with the connection they call the disconnect() method which closes the connection or returns it to the connection pool.
    --Z3r0CooL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

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