Add Mycilla code to odlguice

[odlguice.git] / inject / inject-guice-extensions / jsr250 / src / test / java / org / opendaylight / odlguice / inject / guice / extensions / jsr250 / tests / Perf.java

diff --git a/inject/inject-guice-extensions/jsr250/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/tests/Perf.java b/inject/inject-guice-extensions/jsr250/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/tests/Perf.java
new file mode 100755 (executable)
index 0000000..00f0170
--- /dev/null
+++ b/inject/inject-guice-extensions/jsr250/src/test/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/tests/Perf.java
@@ -0,0 +1,107 @@
+/*
+ * 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.jsr250.tests;
+
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import com.google.inject.Stage;
+import javax.annotation.PostConstruct;
+import org.opendaylight.odlguice.inject.guice.extensions.closeable.CloseableModule;
+import org.opendaylight.odlguice.inject.guice.extensions.jsr250.Jsr250Module;
+
+/**
+ * This code originated in https://github.com/mycila/guice and was forked into
+ * OpenDaylight.
+ * @author Mathieu Carbou (mathieu.carbou@gmail.com) date 2013-07-06
+ */
+final class Perf {
+
+    private Perf() {
+    }
+
+    private static long invocations;
+
+    public static class TestClassWithPostConstruct {
+
+        public void method1() {
+        }
+
+        public void method2() {
+        }
+
+        @PostConstruct
+        public void method3() {
+            invocations++;
+        }
+
+        public void method4() {
+        }
+    }
+
+    public static class TestClassWithoutPostConstruct {
+
+        public void method1() {
+        }
+
+        public void method2() {
+        }
+
+        public void method3() {
+        }
+
+        public void method4() {
+        }
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+
+        // connect visual vm
+        Thread.sleep(10000);
+
+        int count = 1 * 1000 * 10000;
+
+        time("without Mycila", count, createSimpleInjector(), TestClassWithPostConstruct.class);
+        time("with Mycila", count, createInjectorWithMycila(), TestClassWithPostConstruct.class);
+
+        time("without Mycila", count, createSimpleInjector(), TestClassWithoutPostConstruct.class);
+        time("with Mycila", count, createInjectorWithMycila(), TestClassWithoutPostConstruct.class);
+    }
+
+    private static void time(String name, int count, Injector injector, Class<?> clazz) {
+
+        // warm up
+        for (int i = 0; i < 1000 * 1000; i++) {
+            injector.getInstance(clazz);
+        }
+
+        invocations = 0;
+        long start = System.currentTimeMillis();
+
+        for (int i = 0; i < count; i++) {
+            injector.getInstance(clazz);
+        }
+
+        long end = System.currentTimeMillis();
+    }
+
+    private static Injector createInjectorWithMycila() {
+        return Guice.createInjector(Stage.PRODUCTION, new Jsr250Module(), new CloseableModule());
+    }
+
+    private static Injector createSimpleInjector() {
+        return Guice.createInjector(Stage.PRODUCTION);
+    }
+}