Add a performance test that demonstrates why using URI is currently poor for performance

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1180891 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/test/org/apache/catalina/connector/TestResponsePerformance.java b/test/org/apache/catalina/connector/TestResponsePerformance.java
new file mode 100644 (file)
index 0000000..69ff9fc
--- /dev/null
+++ b/test/org/apache/catalina/connector/TestResponsePerformance.java
@@ -0,0 +1,72 @@
+/*
+ *  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.catalina.connector;
+
+import java.net.URI;
+
+import static org.junit.Assert.assertTrue;
+import org.junit.Test;
+
+public class TestResponsePerformance {
+    @Test
+    public void testToAbsolutePerformance() throws Exception {
+        Request req = new TesterToAbsoluteRequest();
+        Response resp = new Response();
+        resp.setRequest(req);
+        
+        long start = System.currentTimeMillis();
+        for (int i = 0; i < 100000; i++) {
+            resp.toAbsolute("bar.html");
+        }
+        long homebrew = System.currentTimeMillis() - start;
+        
+        start = System.currentTimeMillis();
+        for (int i = 0; i < 100000; i++) {
+            URI base = URI.create("http://localhost:8080/foo.html");
+            base.resolve(URI.create("bar.html")).toASCIIString();
+        }
+        long uri = System.currentTimeMillis() - start;
+        
+        System.out.println("Current 'home-brew': " + homebrew +
+                "ms, Using URI: " + uri + "ms");
+        assertTrue(homebrew < uri);
+    }
+
+    
+    private static class TesterToAbsoluteRequest extends Request {
+
+        @Override
+        public String getScheme() {
+            return "http";
+        }
+
+        @Override
+        public String getServerName() {
+            return "localhost";
+        }
+
+        @Override
+        public int getServerPort() {
+            return 8080;
+        }
+
+        @Override
+        public String getDecodedRequestURI() {
+            return "/foo.html";
+        }
+    }
+}