StatisticsTest.java

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package com.sun.grizzly.http;

import com.sun.grizzly.tcp.http11.GrizzlyAdapter;
import com.sun.grizzly.tcp.http11.GrizzlyRequest;
import com.sun.grizzly.tcp.http11.GrizzlyResponse;
import com.sun.grizzly.tcp.RequestGroupInfo;
import com.sun.grizzly.http.embed.Statistics;
import com.sun.grizzly.http.embed.GrizzlyWebServer;
import com.sun.grizzly.util.Utils;

import java.net.HttpURLConnection;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.OutputStream;

/**
 * Statistics gathering test.
 * <p/>
 * Issue: <a href="https://grizzly.dev.java.net/issues/show_bug.cgi?id=565">565</a>
 *
 * @author Hubert Iwaniuk
 */
public class StatisticsTest extends GrizzlyWebServerAbstractTest {

    public static final int PORT = 18890;

    public void testStatisticsGathering() throws IOException,
        InterruptedException {
        try {
            startGrizzlyWebServer(PORT);

            addAdapter("/stats", new StatisticsAdapter(gws));
            addAdapter("/data", new ZerowingAdapter());
            RequestGroupInfo requestStatistics = gws.getStatistics().getRequestStatistics();

            HttpURLConnection conn;
            int count = 0;
            int calls = 0;
            for (int i = 0; i < 10; i++) {
                Utils.dumpOut("Request " + i);
                conn = getConnection("/data", PORT);
                readResponse(conn);
                count += 1024;
                calls += 1;
                Thread.sleep(1);
                assertEquals(calls, requestStatistics.getRequestCount());
                assertEquals(count, requestStatistics.getBytesSent());

/*
                conn = getConnection("/stats", PORT);
                String s = readResponse(conn);
                Utils.dumpOut(s);
                count += s.getBytes().length + 1;
                calls += 1;
                assertEquals(calls, requestStatistics.getRequestCount());
                assertEquals(count, requestStatistics.getBytesSent());
*/
            }
            conn = getConnection("/stats", PORT);
            Utils.dumpOut(readResponse(conn));
            conn = getConnection("/stats", PORT);
            Utils.dumpOut(readResponse(conn));

        } finally {
            stopGrizzlyWebServer();
        }
    }

    
    class ZerowingAdapter extends GrizzlyAdapter {
        public void service(GrizzlyRequest request, GrizzlyResponse response) {
            try {
                Utils.dumpOut("Zerowing");
                OutputStream outputStream = response.getStream();
                outputStream.write(new byte[1024]);
                outputStream.flush();
            } catch (IOException e) {
                response.setStatus(501, e.getMessage());
                e.printStackTrace();
                fail("Zerowing error");
            }
        }
    }

    class StatisticsAdapter extends GrizzlyAdapter {
        final Statistics statistics;

        public StatisticsAdapter(GrizzlyWebServer webserver) {
            statistics = webserver.getStatistics();
            statistics.startGatheringStatistics();
        }

        public void service(GrizzlyRequest request, GrizzlyResponse response) {
            try {
                Utils.dumpOut("StatisticsAdapter");
                RequestGroupInfo requestStatistics = statistics.getRequestStatistics();
                PrintWriter out = response.getWriter();
                out.println(requestStatistics.getRequestCount() + ";" +
                        requestStatistics.getBytesReceived() + ";" +
                        requestStatistics.getBytesSent());
                out.flush();
            } catch (IOException e) {
                response.setStatus(501, e.getMessage());
                e.printStackTrace();
                fail("StatisticsAdapter error");
            }
        }
    }

}