EventWrapper.java

/*
 * Lilith - a log event viewer.
 * Copyright (C) 2007-2016 Joern Huxhorn
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Copyright 2007-2016 Joern Huxhorn
 *
 * Licensed 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.
 */

package de.huxhorn.lilith.data.eventsource;

import java.io.Serializable;

public class EventWrapper<T extends Serializable>
	implements Serializable
{
	private static final long serialVersionUID = 6302031645772429174L;

	private EventIdentifier eventIdentifier;
	private T event;

	public EventWrapper()
	{
		this(null, -1, null);
	}

	public EventWrapper(SourceIdentifier sourceIdentifier, long localId, T event)
	{
		this(new EventIdentifier(sourceIdentifier, localId), event);
	}

	public EventWrapper(EventIdentifier eventIdentifier, T event)
	{
		this.eventIdentifier = eventIdentifier;
		this.event = event;
	}

	public SourceIdentifier getSourceIdentifier()
	{
		if(eventIdentifier != null)
		{
			return eventIdentifier.getSourceIdentifier();
		}
		return null;
	}

	public void setSourceIdentifier(SourceIdentifier sourceIdentifier)
	{
		if(eventIdentifier == null)
		{
			eventIdentifier = new EventIdentifier();
		}
		eventIdentifier.setSourceIdentifier(sourceIdentifier);
	}

	public long getLocalId()
	{
		if(eventIdentifier != null)
		{
			return eventIdentifier.getLocalId();
		}
		return EventIdentifier.NO_LOCAL_ID;
	}

	public void setLocalId(long localId)
	{
		if(eventIdentifier == null)
		{
			eventIdentifier = new EventIdentifier();
		}
		eventIdentifier.setLocalId(localId);
	}

	public EventIdentifier getEventIdentifier()
	{
		return eventIdentifier;
	}

	public void setEventIdentifier(EventIdentifier eventIdentifier)
	{
		this.eventIdentifier = eventIdentifier;
	}

	public T getEvent()
	{
		return event;
	}

	public void setEvent(T event)
	{
		this.event = event;
	}

	@Override
	public boolean equals(Object o)
	{
		if(this == o) return true;
		if(o == null || getClass() != o.getClass()) return false;

		EventWrapper that = (EventWrapper) o;

		if(eventIdentifier != null ? !eventIdentifier.equals(that.eventIdentifier) : that.eventIdentifier != null)
		{
			return false;
		}
		return !(event != null ? !event.equals(that.event) : that.event != null);

	}

	@Override
	public int hashCode()
	{
		if(eventIdentifier != null)
		{
			return eventIdentifier.hashCode();
		}
		return (event != null ? event.hashCode() : 0);
	}

	@Override
	public String toString()
	{
		return "EventWrapper{" +
				"eventIdentifier=" + eventIdentifier +
				", event=" + event +
				'}';
	}
}