/**
 * 
 */
package org.gcube.portlets.user.workspace.server.util;

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;

import org.apache.log4j.Logger;
import org.gcube.common.homelibrary.home.workspace.events.WorkspaceEvent;
import org.gcube.common.homelibrary.home.workspace.events.WorkspaceListener;

/**
 * @author Federico De Faveri defaveri@isti.cnr.it
 *
 */
public class WorkspaceEventCollector implements WorkspaceListener {
	
	protected Logger logger;
	
	protected BlockingQueue<WorkspaceEvent> eventsQueue = new LinkedBlockingQueue<WorkspaceEvent>();

	/**
	 * @param logger
	 */
	public WorkspaceEventCollector(Logger logger) {
		this.logger = logger;
	}

	/**
	 * {@inheritDoc}
	 */
	public void workspaceEvent(WorkspaceEvent event) {
		try {
			logger.trace("EventCollector workspaceEvent"+event);
			eventsQueue.put(event);
		} catch (InterruptedException e) {
			logger.warn("Error adding a new event", e);
		}		
	}
	
	public WorkspaceEvent getEvent() throws InterruptedException
	{
		logger.trace("getEvent");
		return eventsQueue.take();
	}

}