DataServer.java

package cloud_project;

import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;

import org.json.JSONObject;
/*
import org.siddhi.api.exception.SiddhiPraserException;
import org.siddhi.core.SiddhiManager;
import org.siddhi.core.exception.SiddhiException;
import org.siddhi.core.node.InputHandler;
*/
import org.wso2.siddhi.core.SiddhiManager;
import org.wso2.siddhi.core.event.Event;
import org.wso2.siddhi.core.stream.input.InputHandler;
import org.wso2.siddhi.core.stream.output.StreamCallback;
import org.wso2.siddhi.core.util.EventPrinter;

@Path("server")
public class DataServer 
{
	@GET
    @Produces(MediaType.TEXT_HTML)
    public String getData(
    		@DefaultValue("") @QueryParam("sensors") String in
    		) throws InterruptedException 
	{		

		WebTarget target;
		Client c;
		String responseMsg;
		JSONObject obj;
		
		// sensor's id.
		String sensor1_id = "ci4zftqww0002032zeskt2yuc";								// IISc sensor.
		String sensor2_id = "ci4yfbbdb000d03zzoq8kjdl0";								// Urban Launchpad, San Francisco
		String sensor3_id = "ci4usvryz000202s7llxjafaf";								// mapsense, San Francisco
		String sensor4_id = "ci4ooqbyw0001021o7p4qiedw";								// Pineapple, Boston
		String sensor5_id = "ci4ue1845000102w7ni64j7pl";								// monalisa, Boston
		String sensor6_id = "ci4lr75v6000a02ypa256zigk";								// LEClife, Geneva
		String sensor7_id = "ci4oethyi000302ymejc2wc2j";								// swissnexbrazil, Rio de Janeiro
		String sensor8_id = "ci4vk908n000h02s7pqy6aud3";								// penguin, Shanghai
		String sensor9_id = "ci4vejnju000b02s70yzzonp9";								// NorthStarOne, Singapore
		String sensor10_id = "ci4w8gd6f000102tcnp415mz5";								// HPSG730864, Singapore
		
		String data_base_url = "http://sensor-api.localdata.com/api/v1/sources/";
		
		// url for latest entry.
		String[] data_url = new String[10];
		data_url[0] = data_base_url+sensor1_id+"/entries?count=1&sort=desc";
		data_url[1] = data_base_url+sensor2_id+"/entries?count=1&sort=desc";
		data_url[2] = data_base_url+sensor3_id+"/entries?count=1&sort=desc";
		data_url[3] = data_base_url+sensor4_id+"/entries?count=1&sort=desc";
		data_url[4] = data_base_url+sensor5_id+"/entries?count=1&sort=desc";
		data_url[5] = data_base_url+sensor6_id+"/entries?count=1&sort=desc";
		data_url[6] = data_base_url+sensor7_id+"/entries?count=1&sort=desc";
		data_url[7] = data_base_url+sensor8_id+"/entries?count=1&sort=desc";
		data_url[8] = data_base_url+sensor9_id+"/entries?count=1&sort=desc";
		data_url[9] = data_base_url+sensor10_id+"/entries?count=1&sort=desc";
		
		// siddhi manager
		SiddhiManager siddhiManager = new SiddhiManager();                  	
		String ip_stream = "IPEventStream";
		String ip_stream1 = "IPEventStream1";
		
        siddhiManager.defineStream("define stream "+ip_stream+" ( sound long, light long, airquality_raw long, airquality string, uv double, dust double, humidity double )");
        InputHandler inputHandler = siddhiManager.getInputHandler("IPEventStream");
        
        siddhiManager.defineStream("define stream "+ip_stream1+" ( sound long, light long, airquality_raw long, airquality string, uv double, dust double, humidity double )");
        InputHandler inputHandler1 = siddhiManager.getInputHandler("IPEventStream1");
		
        // siddhi query
        //siddhiManager.addQuery("from IPEventStream [sound >= 1000 and light >= 200] insert into OutStream1 ;");
        siddhiManager.addQuery("from IPEventStream[sound >= 1000]#window.length(2000) insert into OutStream1 ");
        //siddhiManager.addQuery("from IPEventStream[sound >= 1000]#window.length(2000) join IPEventStream1[light >= 200]#window.length(2000) insert into JoinStream");
        //siddhiManager.addQuery("from a1 = IPEventStream[dust >= 100.00]+, b1 = IPEventStream1[light >= 200] ?, b2 = IPEventStream1[airquality_raw >= 20] insert into JoinStream");
        
        // callback at OutStream1
        siddhiManager.addCallback("OutStream1", new StreamCallback() {

			@Override
			public void receive(Event[] arg0) {
				EventPrinter.print(arg0);				
			}

        });

        
     // callback at OutStream2
/*        siddhiManager.addCallback("OutStream2", new StreamCallback() {

			@Override
			public void receive(Event[] arg0) {
				EventPrinter.print(arg0);				
			}

        });
*/
        
     // callback at JoinStream
        siddhiManager.addCallback("JoinStream", new StreamCallback() {

			@Override
			public void receive(Event[] arg0) {
				EventPrinter.print(arg0);				
			}

        });
		
        
        long start_time=0, end_time=0, final_time=0;
        
        int n = Integer.parseInt(in);
        
//		while(i!=0)
//		{
        for(int i=0;i<10;i++)
        {
        	for(int j=0;j<n;j++)
        	{        
        		start_time = System.currentTimeMillis();
        		c = ClientBuilder.newClient();
        		target = c.target(ServerLauncher.restBaseUri);
        		responseMsg = target.path("service").queryParam("url",data_url[j]).request().get(String.class);
			
        		obj = new JSONObject(responseMsg);
        		IIScSensorData data = new IIScSensorData(obj);
			
        		inputHandler.send(new Object[]{data.getSound(), data.getLight(), data.getAirquality_raw(), data.getAirquality(), data.getUv(), data.getDust(), data.getHumidity()});
        		inputHandler1.send(new Object[]{data.getSound(), data.getLight(), data.getAirquality_raw(), data.getAirquality(), data.getUv(), data.getDust(), data.getHumidity()});
			
        		end_time=System.currentTimeMillis();
        	}
        	
        	final_time += (end_time - start_time);
        	Thread.sleep(10000);		// 10000
        }
//			i--;
//			Thread.sleep(10);
//		}
		
        final_time /= 10;
        
		String s = String.valueOf(final_time);
		System.out.println(s);
            
	    return s;
	    //return "<html><body><h2>Response</h2></br>"+responseMsg.toString()+"</body></html>";
    }
	
}