Merge "Add Mycilla code to odlguice"

[odlguice.git] / inject / inject-guice-extensions / injection / src / test / java / org / opendaylight / odlguice / inject / guice / extensions / injection / tests / Perf.java

diff --git a/inject/inject-guice-extensions/injection/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/injection/tests/Perf.java b/inject/inject-guice-extensions/injection/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/injection/tests/Perf.java
new file mode 100755 (executable)
index 0000000..14abe3e
--- /dev/null
+++ b/inject/inject-guice-extensions/injection/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/injection/tests/Perf.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2010 Mycila (mathieu.carbou@gmail.com)
+ *
+ * Licensed 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.opendaylight.odlguice.inject.guice.extensions.injection.tests;
+
+import com.google.common.collect.Iterables;
+import java.io.File;
+import java.util.Enumeration;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import org.opendaylight.odlguice.inject.guice.extensions.injection.Reflect;
+
+/**
+ * This code originated in https://github.com/mycila/guice and was forked into
+ * OpenDaylight.
+ * @author Mathieu Carbou (mathieu.carbou@gmail.com)
+ */
+public final class Perf {
+    private Perf() {
+
+    }
+
+    public static void main(String[] args) throws Exception {
+        perfTestMembers();
+    }
+
+    private static void perfTestMembers() throws Exception {
+        List<Class<?>> classes = new LinkedList<Class<?>>();
+        JarFile jarFile = new JarFile(new File("C:\\Program Files\\Java\\jdk1.7.0_15\\jre\\lib\\rt.jar"));
+        Enumeration<JarEntry> enums = jarFile.entries();
+        while (enums.hasMoreElements()) {
+            JarEntry entry = enums.nextElement();
+            if (entry.getName().endsWith(".class")) {
+                if (entry.getName().startsWith("javax/swing")
+                    || entry.getName().startsWith("java/awt")
+                    || entry.getName().startsWith("java/awt")) {
+                    classes.add(Class
+                            .forName(entry.getName().replace('/', '.').substring(0, entry.getName().length() - 6)));
+                }
+            }
+        }
+
+        // start visual VM
+        Thread.sleep(10000);
+
+        for (int i = 0; i < 100; i++) {
+            long time = System.nanoTime();
+            for (Class<?> c : classes) {
+                Iterables.size(Reflect.findAllAnnotatedMethods(c, Deprecated.class));
+            }
+            long end = System.nanoTime();
+        }
+    }
+}