AbstractVetoableEvent.java

/**
 * Copyright (c) 2008-2011 Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://www.sonatype.com/products/nexus/attributions.
 *
 * This program is free software: you can redistribute it and/or modify it only under the terms of the GNU Affero General
 * Public License Version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License Version 3
 * for more details.
 *
 * You should have received a copy of the GNU Affero General Public License Version 3 along with this program.  If not, see
 * http://www.gnu.org/licenses.
 *
 * Sonatype Nexus (TM) Open Source Version is available from Sonatype, Inc. Sonatype and Sonatype Nexus are trademarks of
 * Sonatype, Inc. Apache Maven is a trademark of the Apache Foundation. M2Eclipse is a trademark of the Eclipse Foundation.
 * All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.proxy.events;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.sonatype.plexus.appevents.AbstractEvent;

public class AbstractVetoableEvent<T>
    extends AbstractEvent<T>
    implements Vetoable
{
    private final ArrayList<Veto> vetos = new ArrayList<Veto>();

    public AbstractVetoableEvent( T component )
    {
        super( component );
    }

    public List<Veto> getVetos()
    {
        return Collections.unmodifiableList( vetos );
    }

    public boolean isVetoed()
    {
        return !vetos.isEmpty();
    }

    public void putVeto( Veto veto )
    {
        vetos.add( veto );
    }

    public void putVeto( Object vetoer, Throwable reason )
    {
        vetos.add( new Veto( vetoer, reason ) );
    }

    public boolean removeVeto( Veto veto )
    {
        return vetos.remove( veto );
    }

}