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path: root/gearman/controllerWorker/ControllerWorker/ShutdownWorker.java
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package ControllerWorker;

import java.util.LinkedHashMap;
import java.util.StringTokenizer;
import java.util.Vector;

import org.gearman.client.GearmanClient;
import org.gearman.client.GearmanClientImpl;
import org.gearman.client.GearmanJob;
import org.gearman.client.GearmanJobImpl;
import org.gearman.client.GearmanJobResult;
import org.gearman.client.GearmanJobResultImpl;
import org.gearman.common.GearmanJobServerConnection;
import org.gearman.common.GearmanNIOJobServerConnection;
import org.gearman.util.ByteUtils;
import org.gearman.worker.AbstractGearmanFunction;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

import org.apache.log4j.Logger;

public class ShutdownWorker extends AbstractGearmanFunction {
	private static final Logger logger = ControllerWorkerMain.getLogger();;

	@Override
	public String getName() {
		return "shutdown";
	}

	@Override
	public GearmanJobResult executeFunction() {
		String data = ByteUtils.fromUTF8Bytes((byte[]) this.data);
		Vector<Client> clients = new Vector<Client>();
		JSONObject jsonObject = (JSONObject) JSONValue.parse(data);
		String event = "";
		if (jsonObject.get("eventName") != null) {
			event = jsonObject.get("eventName").toString();
		}
		JSONArray jsonClients = new JSONArray();
		if (jsonObject.get("clients") != null) {
			jsonClients = (JSONArray) jsonObject.get("clients");
		}

		String res;
		if (!event.isEmpty() && !jsonClients.isEmpty()) {
			for (Object clientObj : jsonClients) {
				JSONObject clientJsonObj = (JSONObject) clientObj;
				Client client = new Client(clientJsonObj, "shutdown", event);
				clients.add(client);
			}

			String gearmanServerHost = ControllerWorkerMain
					.getApplication_ini().getString("gearman.server.host");
			int gearmanServerPort = Integer.parseInt(ControllerWorkerMain
					.getApplication_ini().getString("gearman.server.port"));
			long waitTime = Long.parseLong(ControllerWorkerMain
					.getApplication_ini().getString("gearman.worker.waitTime"));
			long scsavTime = Integer
					.parseInt(ControllerWorkerMain.getApplication_ini()
							.getString("gearman.worker.scsavTime"));
			int updateRate = Integer.parseInt(ControllerWorkerMain
					.getApplication_ini()
					.getString("gearman.worker.updateRate"));
			String blacklist = ControllerWorkerMain.getApplication_ini()
					.getString("gearman.worker.ps.blacklist");
			StringTokenizer blacklistTokenizer = new StringTokenizer(blacklist,
					", ");
			String whitelist = ControllerWorkerMain.getApplication_ini()
					.getString("gearman.worker.ps.whitelist");
			StringTokenizer whitelistTokenizer = new StringTokenizer(whitelist,
					", ");
			Vector<String> psWhitelist = new Vector<String>();
			Vector<String> psBlacklist = new Vector<String>();
			while (whitelistTokenizer.hasMoreTokens()) {
				String whiteEntry = whitelistTokenizer.nextToken();
				psWhitelist.add(whiteEntry);
			}
			while (blacklistTokenizer.hasMoreTokens()) {
				String blackEntry = blacklistTokenizer.nextToken();
				psBlacklist.add(blackEntry);
			}

			Shutdown shutdown = new Shutdown(event, clients, updateRate,
					waitTime, scsavTime, psWhitelist, psBlacklist,
					gearmanServerHost, gearmanServerPort);
			GearmanJobServerConnection gearmanConnection = new GearmanNIOJobServerConnection(
					gearmanServerHost, gearmanServerPort);
			GearmanClient gearmanClient = new GearmanClientImpl();
			gearmanClient.addJobServer(gearmanConnection);
			LinkedHashMap<String, Object> jsonData = new LinkedHashMap<String, Object>();
			jsonData.put("eventName", event);
			jsonData.put("type", "createShutdownState");
			jsonData.put("clients", jsonClients);
			String dataString = JSONValue.toJSONString(jsonData);
			GearmanJob job = GearmanJobImpl.createJob("status", dataString
					.getBytes(), "status" + event);
			gearmanClient.submit(job);
			shutdown.start();
			logger.info("Shutdown of " + event + " started");
			res = "Shutdown started";
		} else {
			res = "Parameters incomplete";
		}

		byte[] warnings = new byte[0];
		byte[] exceptions = new byte[0];
		int numerator = 0;
		int denominator = 0;
		GearmanJobResult gjr = new GearmanJobResultImpl(this.jobHandle, true,
				res.getBytes(), warnings, exceptions, numerator, denominator);
		return gjr;
	}
}