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package org.apache.maven.wagon.events;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.apache.maven.wagon.Wagon;

/**
 * SessionEvent is used for notifying SessionListeners about
 * occurrences of various situations related.
 * 
 * The session event is emitted by Wagon objects when
 * 

 * 

 * Before connection to the repository will be opened
 * After connection to the repository was opened
 * After wagon has logged-in to the repository
 * After wagon has logged-off from the repository
 * Before connection to the repository will be closed
 * After connection to the repository was closed
 * 
 *
 * @author Michal Maczka
 * @version $Id: SessionEvent.java 682051 2008-08-02 21:29:38Z hboutemy $
 */
public class SessionEvent
    extends WagonEvent
{

    /**
     * A SESSION was closed.
     */
    public static final int SESSION_CLOSED = 1;

    /**
     * A SESSION is about to be disconnected.
     */
    public static final int SESSION_DISCONNECTING = 2;

    /**
     * A SESSION was disconnected (not currently used).
     */
    public static final int SESSION_DISCONNECTED = 3;

    /**
     * A SESSION was refused.
     */
    public static final int SESSION_CONNECTION_REFUSED = 4;

    /**
     * A SESSION is about to be opened.
     */
    public static final int SESSION_OPENING = 5;

    /**
     * A SESSION was opened.
     */
    public static final int SESSION_OPENED = 6;

    /**
     * A SESSION was opened.
     */
    public static final int SESSION_LOGGED_IN = 7;

    /**
     * A SESSION was opened.
     */
    public static final int SESSION_LOGGED_OFF = 8;

    /**
     * A SESSION was opened.
     */
    public static final int SESSION_ERROR_OCCURRED = 9;

    /**
     * The type of the event. One of the SESSSION_XXX constants
     */
    private int eventType;

    private Exception exception;

    /**
     * Creates new instance of SessionEvent
     *
     * @param wagon     Wagon object which created this event
     * @param eventType the type of the event
     */
    public SessionEvent( final Wagon wagon, final int eventType )
    {
        super( wagon );
        this.eventType = eventType;

    }

    /**
     * Creates new instance of SessionEvent. Sets event type to SESSION_ERROR_OCCURRED
     *
     * @param wagon     Wagon object which created this event
     * @param exception the exception
     */
    public SessionEvent( final Wagon wagon, final Exception exception )
    {
        super( wagon );
        this.exception = exception;
        this.eventType = SESSION_ERROR_OCCURRED;

    }

    /**
     * @return Returns the type.
     */
    public int getEventType()
    {
        return eventType;
    }

    /**
     * @return Returns the exception.
     */
    public Exception getException()
    {
        return exception;
    }

    /**
     * @param eventType The eventType to set.
     */
    public void setEventType( final int eventType )
    {
        switch ( eventType )
        {

            case SessionEvent.SESSION_CLOSED:
                break;
            case SessionEvent.SESSION_DISCONNECTED:
                break;
            case SessionEvent.SESSION_DISCONNECTING:
                break;
            case SessionEvent.SESSION_ERROR_OCCURRED:
                break;
            case SessionEvent.SESSION_LOGGED_IN:
                break;
            case SessionEvent.SESSION_LOGGED_OFF:
                break;
            case SessionEvent.SESSION_OPENED:
                break;
            case SessionEvent.SESSION_OPENING:
                break;
            case SessionEvent.SESSION_CONNECTION_REFUSED:
                break;
            default :
                throw new IllegalArgumentException( "Illegal event type: " + eventType );
        }
        this.eventType = eventType;
    }

    /**
     * @param exception The exception to set.
     */
    public void setException( final Exception exception )
    {
        this.exception = exception;
    }

    public String toString()
    {
        StringBuffer sb = new StringBuffer();

        sb.append( "SessionEvent[" );

        switch ( this.eventType )
        {
            case SessionEvent.SESSION_CLOSED:
                sb.append( "CONNECTION_CLOSED" );
                break;
            case SessionEvent.SESSION_DISCONNECTED:
                sb.append( "CONNECTION_DISCONNECTED" );
                break;
            case SessionEvent.SESSION_DISCONNECTING:
                sb.append( "CONNECTION_DISCONNECTING" );
                break;
            case SessionEvent.SESSION_ERROR_OCCURRED:
                sb.append( "CONNECTION_ERROR_OCCURRED" );
                break;
            case SessionEvent.SESSION_LOGGED_IN:
                sb.append( "CONNECTION_LOGGED_IN" );
                break;
            case SessionEvent.SESSION_LOGGED_OFF:
                sb.append( "CONNECTION_LOGGED_OFF" );
                break;
            case SessionEvent.SESSION_OPENED:
                sb.append( "CONNECTION_OPENED" );
                break;
            case SessionEvent.SESSION_OPENING:
                sb.append( "CONNECTION_OPENING" );
                break;
            case SessionEvent.SESSION_CONNECTION_REFUSED:
                sb.append( "CONNECTION_CONNECTION_REFUSED" );
                break;
            default:
                sb.append( eventType );
        }
        sb.append( "|" );

        sb.append( this.getWagon().getRepository() ).append( "|" );
        sb.append( this.source );

        if ( exception != null )
        {
            sb.append( "|" );
            sb.append( exception.getClass().getName() ).append( ":" );
            sb.append( exception.getMessage() );
        }

        sb.append( "]" );

        return sb.toString();
    }
}