Author: hadrian
Date: Fri Dec 14 21:09:12 2012
New Revision: 1422087
URL: http://svn.apache.org/viewvc?rev=1422087&view=rev
Log:
Add ProxyConstructor for faster proxy creation
Added:
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java
(with props)
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java
(with props)
Modified:
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ExecutionQueueImpl.java
Modified:
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ExecutionQueueImpl.java
URL:
http://svn.apache.org/viewvc/ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ExecutionQueueImpl.java?rev=1422087&r1=1422086&r2=1422087&view=diff
==============================================================================
---
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ExecutionQueueImpl.java
(original)
+++
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ExecutionQueueImpl.java
Fri Dec 14 21:09:12 2012
@@ -96,8 +96,6 @@ public class ExecutionQueueImpl implemen
private int _objIdCounter;
- private ExecutionQueueStatistics _statistics = new
ExecutionQueueStatistics();
-
private ReplacementMap _replacementMap;
private Serializable _gdata;
@@ -380,7 +378,6 @@ public class ExecutionQueueImpl implemen
ps.println("-- GENERAL INFO");
ps.println(" Current Cycle : " + _currentCycle);
ps.println(" Num. Reactions : " + _reactions.size());
- _statistics.printStatistics(ps);
if (!_reactions.isEmpty()) {
ps.println("-- REACTIONS");
int cnt = 0;
Added:
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java
URL:
http://svn.apache.org/viewvc/ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java?rev=1422087&view=auto
==============================================================================
---
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java
(added)
+++
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java
Fri Dec 14 21:09:12 2012
@@ -0,0 +1,49 @@
+/*
+ * 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.ode.jacob.vpu;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Proxy;
+
+
+/**
+ * Interface implemented by channel proxies.
+ */
+public class ProxyConstructor<T> {
+ private Constructor<T> constructor;
+ @SuppressWarnings("unchecked")
+ public ProxyConstructor(Class<T> clazz) {
+ try {
+ Class<?> proxyClass =
Proxy.getProxyClass(clazz.getClassLoader(), new Class[] {clazz});
+ constructor = (Constructor<T>)
proxyClass.getConstructor(new Class[] { InvocationHandler.class });
+ } catch (Exception e) {
+ // TODO: ignore? LOG?
+ }
+ }
+
+ public T newInstance(InvocationHandler handler) {
+ try {
+ return constructor != null ?
(T)constructor.newInstance(handler) : null;
+ } catch (Exception e) {
+ // TODO: really ignore?
+ }
+ return null;
+ }
+}
Propchange:
ode/trunk/jacob/src/main/java/org/apache/ode/jacob/vpu/ProxyConstructor.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java
URL:
http://svn.apache.org/viewvc/ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java?rev=1422087&view=auto
==============================================================================
---
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java
(added)
+++
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java
Fri Dec 14 21:09:12 2012
@@ -0,0 +1,167 @@
+/*
+ * 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.ode.jacob.vpu;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+import junit.framework.TestCase;
+
+
+public class ProxyConstructorTimingTest extends TestCase {
+ private static final long COUNT = 1000000L;
+ public ProxyConstructorTimingTest(String testName) {
+ super(testName);
+ }
+
+ public void testDoNothing() throws Exception {
+ }
+
+ public interface TestExecution {
+ public void execute() throws Exception;
+ }
+
+ public class RepeatExecution implements TestExecution {
+ private final long count;
+ private final TestExecution test;
+ public RepeatExecution(long count, TestExecution test) {
+ this.count = count;
+ this.test = test;
+ }
+ public void execute() throws Exception {
+ for (long i = 0; i < count; i++) {
+ test.execute();
+ }
+ }
+ }
+
+ public class TimedExecution implements TestExecution {
+ private final String name;
+ private final TestExecution test;
+ public TimedExecution(String name, TestExecution test) {
+ this.name = name;
+ this.test = test;
+ }
+ public void execute() throws Exception {
+ NanoTimer timer = new NanoTimer().start();
+ test.execute();
+ System.out.println("TimedExecution(" + name + "): " +
timer.stop() + "[ns]");
+ }
+ }
+
+ public void timedRepeatedExecution(String name, TestExecution test) throws
Exception {
+ new TimedExecution(name, new RepeatExecution(COUNT, test)).execute();
+ }
+
+ public void manualTestProxyTiming() throws Exception {
+ timedRepeatedExecution("direct invocation", new TestExecution() {
+ @Override
+ public void execute() throws Exception {
+ // Create new instance every time
+ new GreeterImpl2().hello("World");
+ }
+ });
+
+ timedRepeatedExecution("newProxyInstance", new TestExecution() {
+ @Override
+ public void execute() throws Exception {
+ Greeter gp = (Greeter)
Proxy.newProxyInstance(Greeter.class.getClassLoader(),
+ new Class<?>[] {Greeter.class}, new
GreeterInvocationHandler(new GreeterImpl2()));
+ gp.hello("World");
+ }
+ });
+
+ final ProxyConstructor<Greeter> helper = new
ProxyConstructor<Greeter>(Greeter.class);
+ timedRepeatedExecution("ProxyConstructor", new TestExecution() {
+ @Override
+ public void execute() throws Exception {
+ Greeter gp = (Greeter) helper.newInstance(new
GreeterInvocationHandler(new GreeterImpl2()));
+ gp.hello("World");
+ }
+ });
+ }
+
+ public interface Greeter {
+ String hello(String name);
+ }
+
+ public class GreeterImpl implements Greeter {
+ public String hello(String name) {
+ return "Hello " + name;
+ }
+ }
+
+ public class GreeterImpl2 implements Greeter {
+ public String hello(String name) {
+ return "";
+ }
+ }
+
+ public class GreeterInvocationHandler implements InvocationHandler {
+ private Object greeter;
+ GreeterInvocationHandler(Object o) {
+ greeter = o;
+ }
+
+ public Object invoke(Object proxy, Method method, Object[] args) throws
Throwable {
+ if(Object.class == method.getDeclaringClass()) {
+ String name = method.getName();
+ if("equals".equals(name)) {
+ return proxy == args[0];
+ } else if("hashCode".equals(name)) {
+ return System.identityHashCode(proxy);
+ } else if("toString".equals(name)) {
+ return proxy.getClass().getName() + "@" +
+
Integer.toHexString(System.identityHashCode(proxy)) +
+ ", with InvocationHandler " + this;
+ } else {
+ throw new
IllegalStateException(String.valueOf(method));
+ }
+ }
+ return method.invoke(greeter, args);
+ }
+ }
+
+ // TODO: may be useful for other things? move it somewhere else?
+ public class NanoTimer {
+ private long start;
+ private long lap;
+ // TODO: we could also count laps...
+ public NanoTimer() {
+ // don't start by default, easy to just call .start();
+ }
+ public NanoTimer start() {
+ start = System.nanoTime();
+ lap = start;
+ return this;
+ }
+ public long stop() {
+ long span = System.nanoTime() - start;
+ start = 0;
+ lap = 0;
+ return span;
+ }
+ public long lap() {
+ long prev = lap;
+ lap = (start != 0) ? System.nanoTime() : 0;
+ return lap - prev;
+ }
+ }
+}
Propchange:
ode/trunk/jacob/src/test/java/org/apache/ode/jacob/vpu/ProxyConstructorTimingTest.java
------------------------------------------------------------------------------
svn:eol-style = native
