samples/learning-more/binding-comet/weather-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/TemperatureHumidityServiceImpl.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.tuscany.sca.sample.comet;

import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import org.apache.tuscany.sca.binding.comet.runtime.callback.CometCallback;
import org.apache.tuscany.sca.binding.comet.runtime.callback.Status;
import org.apache.tuscany.sca.sample.comet.model.Location;
import org.apache.tuscany.sca.sample.comet.model.Response;
import org.oasisopen.sca.annotation.Callback;
import org.oasisopen.sca.annotation.Service;

@Service({ TemperatureService.class, HumidityService.class })
public class TemperatureHumidityServiceImpl implements TemperatureService, HumidityService {

	@Callback
	protected CometCallback callback;

	@Override
	public void getHumidity(final Location location) {
		new Timer().scheduleAtFixedRate(new TimerTask() {

			@Override
			public void run() {
				final Response response = new Response();
				response.setDate(new Date());
				response.setData(Helper.randomInt(90) + "%");
				Status status = callback.sendMessage(response);
				if (status == Status.CLIENT_DISCONNECTED) {
					System.out.println("Client disconnected from HumidityService.");
					this.cancel();
				}
			}
		}, 0L, 5000L);
	}

	@Override
	public void getTemperature(final Location location, final int scale) {
		new Timer().scheduleAtFixedRate(new TimerTask() {

			@Override
			public void run() {
				final Response response = new Response();
				response.setDate(new Date());
				final String data = "" + Helper.randomInt(scale == TemperatureService.CELSIUS ? 40 : 150);
				response.setData(data);
				Status status = callback.sendMessage(response);
				if (status == Status.CLIENT_DISCONNECTED) {
					System.out.println("Client disconnected from TemperatureService.");
					this.cancel();
				}
			}
		}, 0L, 3000L);
	}

}