JdbcConnectionEventListener.java

/*
 * 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
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package com.sun.connector.blackbox;

import javax.resource.spi.ConnectionEvent;
import javax.resource.spi.ConnectionEventListener;
import javax.resource.spi.ManagedConnection;
import java.util.Vector;

/**
 * @author Tony Ng
 */
public class JdbcConnectionEventListener
        implements javax.sql.ConnectionEventListener {

    private Vector listeners;
    private ManagedConnection mcon;

    public JdbcConnectionEventListener(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);
                    System.out.println(" Received CONNECTION_ERROR_OCCURRED in listener");
                    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 JdbcConnection wrapper
    }

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