Package com.sun.connector.cciblackbox

Source Code of com.sun.connector.cciblackbox.CciConnectionEventListener

/*
* Use of this J2EE Connectors Sample Source Code file is governed by
* the following modified BSD license:
*
* Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* -Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduct the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind.
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND
* ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES
* SUFFERED BY LICENSEE AS A RESULT OF  OR RELATING TO USE, MODIFICATION
* OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL
* SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA,
* OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
* PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
* LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
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*
* You acknowledge that Software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
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/*                                                                            */
package com.sun.connector.cciblackbox;

import javax.resource.*;
import javax.resource.spi.*;
import java.io.Serializable;
import javax.sql.*;
import javax.resource.spi.ConnectionEventListener;
import javax.resource.spi.ConnectionEvent;
import java.util.*;

/**
* The connector architecture provides an event callback mechanism that
* enables an application server to receive notifications from a
* ManagedConnection instance. The App server implements this class in order to
* listen to event notifications from ManagedConnection instance.
*
* @author Sheetal Vartak
*/
public class CciConnectionEventListener
    implements javax.sql.ConnectionEventListener {

    private Vector listeners;
    private ManagedConnection mcon;

    public CciConnectionEventListener(ManagedConnection mcon) {
        listeners = new Vector();
        this.mcon = mcon;
    }

    public void sendEvent(int eventType, Exception ex,
                          Object connectionHandle) {
        Vector list = (Vector) listeners.clone();
        ConnectionEvent ce = null;
        if (ex == null) {
            ce = new ConnectionEvent(mcon, eventType);
        } else {
            ce = new ConnectionEvent(mcon, eventType, ex);
        }
        if (connectionHandle != null) {
            ce.setConnectionHandle(connectionHandle);
        }
         int size = list.size();
        for (int i=0; i<size; i++) {
            ConnectionEventListener l =
                (ConnectionEventListener) list.elementAt(i);
            switch (eventType) {
            case ConnectionEvent.CONNECTION_CLOSED:
                l.connectionClosed(ce);
                break;
            case ConnectionEvent.LOCAL_TRANSACTION_STARTED:
                l.localTransactionStarted(ce);
                break;
            case ConnectionEvent.LOCAL_TRANSACTION_COMMITTED:
                l.localTransactionCommitted(ce);
                break;
            case ConnectionEvent.LOCAL_TRANSACTION_ROLLEDBACK:
                l.localTransactionRolledback(ce);
                break;
            case ConnectionEvent.CONNECTION_ERROR_OCCURRED:
                l.connectionErrorOccurred(ce);
                break;
            default:
                throw new IllegalArgumentException("Illegal eventType: " +
                                                   eventType);
            }
        }
    }


    public void addConnectorListener(ConnectionEventListener l) {
        listeners.addElement(l);
    }

    public void removeConnectorListener(ConnectionEventListener l) {
        listeners.removeElement(l);
    }

    public void connectionClosed(javax.sql.ConnectionEvent event) {
        // do nothing. The event is sent by the CciConnection wrapper
    }

    public void connectionErrorOccurred(javax.sql.ConnectionEvent event) {
        sendEvent(ConnectionEvent.CONNECTION_ERROR_OCCURRED,
                  event.getSQLException(), null);
    }
}
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