Author: markt
Date: Fri Sep 12 08:12:53 2014
New Revision: 1624474
URL: http://svn.apache.org/r1624474
Log:
Add a performance test. Useful for judging the benefit (or not) of proposed
BCEL changes.
Added:
tomcat/trunk/test/org/apache/tomcat/util/bcel/
tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java
(with props)
Added: tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java?rev=1624474&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java (added)
+++ tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java Fri
Sep 12 08:12:53 2014
@@ -0,0 +1,70 @@
+/*
+ * 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.tomcat.util.bcel;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.HashSet;
+import java.util.Locale;
+import java.util.Set;
+
+import org.junit.Test;
+
+import org.apache.tomcat.util.bcel.classfile.ClassParser;
+import org.apache.tomcat.util.scan.Jar;
+import org.apache.tomcat.util.scan.JarFactory;
+
+public class TesterPerformance {
+
+ private static final String JAR_LOCATION = "/tmp/jira-libs";
+
+ @Test
+ public void testClassParserPerformance() throws IOException {
+ File libDir = new File(JAR_LOCATION);
+ String[] libs = libDir.list();
+
+ Set<URL> jarURLs = new HashSet<>();
+
+ for (String lib : libs) {
+ if (!lib.toLowerCase(Locale.ENGLISH).endsWith(".jar")) {
+ continue;
+ }
+ jarURLs.add(new URL("jar:" + new File (libDir,
lib).toURI().toURL().toExternalForm() + "!/"));
+ }
+
+ long start = System.nanoTime();
+
+ for (URL jarURL : jarURLs) {
+ Jar jar = JarFactory.newInstance(jarURL);
+ jar.nextEntry();
+ String jarEntryName = jar.getEntryName();
+ while (jarEntryName != null) {
+ if (jarEntryName.endsWith(".class")) {
+ ClassParser cp = new
ClassParser(jar.getEntryInputStream(), jarEntryName);
+ cp.parse();
+ }
+ jar.nextEntry();
+ jarEntryName = jar.getEntryName();
+ }
+ }
+
+ long duration = System.nanoTime() - start;
+
+ System.out.println("ClassParser performance test took: " + duration +
"ns");
+ }
+}
Propchange: tomcat/trunk/test/org/apache/tomcat/util/bcel/TesterPerformance.java
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