package io.undertow.servlet.test.metrics;

import java.io.IOException;
import javax.servlet.DispatcherType;
import javax.servlet.ServletException;

import io.undertow.server.handlers.MetricsHandler;
import io.undertow.server.handlers.PathHandler;
import io.undertow.servlet.api.DeploymentInfo;
import io.undertow.servlet.api.DeploymentManager;
import io.undertow.servlet.api.FilterInfo;
import io.undertow.servlet.api.ServletContainer;
import io.undertow.servlet.api.ServletInfo;
import io.undertow.servlet.test.defaultservlet.DefaultServletTestCase;
import io.undertow.servlet.test.defaultservlet.HelloFilter;
import io.undertow.servlet.test.path.ServletPathMappingTestCase;
import io.undertow.servlet.test.util.TestClassIntrospector;
import io.undertow.servlet.test.util.TestResourceLoader;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.testutils.TestHttpClient;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;

/**
 * @author Stuart Douglas
 */
@RunWith(DefaultServer.class)
public class ServletMetricsHandlerTestCase {

    private static TestMetricsCollector metricsCollector = new TestMetricsCollector();

    @BeforeClass
    public static void setup() throws ServletException {

        final PathHandler root = new PathHandler();
        final ServletContainer container = ServletContainer.Factory.newInstance();

        DeploymentInfo builder = new DeploymentInfo()
                .setClassIntrospecter(TestClassIntrospector.INSTANCE)
                .setClassLoader(ServletPathMappingTestCase.class.getClassLoader())
                .setContextPath("/servletContext")
                .setDeploymentName("servletContext.war")
                .setResourceManager(new TestResourceLoader(DefaultServletTestCase.class));

        builder.addServlet(new ServletInfo("MetricTestServlet", MetricTestServlet.class)
                .addMapping("/path/default"));

        builder.addFilter(new FilterInfo("Filter", HelloFilter.class));
        builder.addFilterUrlMapping("Filter", "/filterpath/*", DispatcherType.REQUEST);
        builder.setMetricsCollector(metricsCollector);

        DeploymentManager manager = container.addDeployment(builder);
        manager.deploy();
        root.addPrefixPath(builder.getContextPath(), manager.start());

        DefaultServer.setRootHandler(root);
    }


    @Test
    public void testMetrics() throws IOException, InterruptedException {
        HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/servletContext/path/default");
        TestHttpClient client = new TestHttpClient();
        try {
            HttpResponse result = client.execute(get);
            Assert.assertEquals(200, result.getStatusLine().getStatusCode());
            Assert.assertTrue(HttpClientUtils.readResponse(result).contains("metric"));

            MetricsHandler.MetricResult metrics = metricsCollector.getMetrics("MetricTestServlet");
            Assert.assertEquals(1, metrics.getTotalRequests());
            Assert.assertTrue(metrics.getMaxRequestTime() > 0);
            Assert.assertEquals(metrics.getMinRequestTime(), metrics.getMaxRequestTime());
            Assert.assertEquals(metrics.getMaxRequestTime(), metrics.getTotalRequestTime());


            result = client.execute(get);
            Assert.assertEquals(200, result.getStatusLine().getStatusCode());
            Assert.assertTrue(HttpClientUtils.readResponse(result).contains("metric"));


            metrics = metricsCollector.getMetrics("MetricTestServlet");
            Assert.assertEquals(2, metrics.getTotalRequests());

        } finally {

            client.getConnectionManager().shutdown();
        }
    }
}

@@ -921,16 +921,64 @@
 Client;%0A
+import io.undertow.util.CompletionLatchHandler;%0A
 import o
@@ -1002,24 +1002,24 @@
 tpResponse;%0A
-
 import org.a
@@ -1359,24 +1359,91 @@
 llector();%0A%0A
+    private static CompletionLatchHandler completionLatchHandler;%0A%0A
     @BeforeC
@@ -2610,13 +2610,66 @@
 ler(
+completionLatchHandler = new CompletionLatchHandler(
 root)
+)
 ;%0A  
@@ -3146,24 +3146,112 @@
 (%22metric%22));
+%0A            completionLatchHandler.await();%0A            completionLatchHandler.reset();
 %0A%0A          
@@ -3766,32 +3766,32 @@
 tStatusCode());%0A
-
             Asse
@@ -3858,24 +3858,112 @@
 %22metric%22));%0A
+            completionLatchHandler.await();%0A            completionLatchHandler.reset();%0A
 %0A%0A          

Fix racey test