/**
 * Copyright (c) <2013> <Radware Ltd.> and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the terms of the Eclipse Public License
 * v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html 
 * @author Gera Goft 
 * @version 0.1
 */
package org.opendaylight.defense4all.restservice;

import java.util.Hashtable;

import javax.transaction.NotSupportedException;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.UriInfo;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opendaylight.defense4all.core.DFHolder;
import org.opendaylight.defense4all.core.NetNode;
import org.opendaylight.defense4all.framework.core.ExceptionControlApp;
import org.opendaylight.defense4all.framework.core.Repo;

public class NetNodeResource {

	public enum NetNodeResourceStatus {
		OK,
		FORBIDDEN,
		CONFLICT,
		SERVER_ERROR
	}
	
	private static Log log = LogFactory.getLog(NetNodeResource.class);
	
	@Context
	UriInfo uriInfo;
	@Context
	Request request;
	String netNodeLabel;
	
	public NetNodeResource(UriInfo uriInfo, Request request, String netNodeLabel) {
		this.uriInfo = uriInfo;	this.request = request;	this.netNodeLabel = netNodeLabel;
	}
	
	@GET
	@Produces(MediaType.APPLICATION_JSON)
	public NetNode getNetNode() {

		try {
			log.debug("In getnetNode. NetNode label is " + netNodeLabel);
			Repo<String> netNodesRepo = DFHolder.get().netNodesRepo;
			Hashtable<String,Object> netNodeRow = netNodesRepo.getRow(netNodeLabel);
			if(netNodeRow == null) return null;
			NetNode netNode = new NetNode(netNodeRow);
			netNode.toJacksonFriendly();
			return netNode;
		} catch (ExceptionControlApp e) {
			log.error("Failed to retrieve pn " + netNodeLabel, e);
			return null;
		}
	}
	
	@DELETE
	public NetNodeResourceStatus deleteNetNode() {		

		try {
			log.debug("DeleteNetNode: invoked");
			DFHolder.get().getMgmtPoint().removeNetNode(netNodeLabel);
			return NetNodeResourceStatus.OK;
		} catch (NotSupportedException e2) {
			return NetNodeResourceStatus.FORBIDDEN; 
		} catch (IllegalStateException e1) {
			return NetNodeResourceStatus.CONFLICT; 
		} catch (ExceptionControlApp e) {
			return NetNodeResourceStatus.SERVER_ERROR;		
		}
	}
}