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//*****************************************************************************
//Copyright 2004-2008 Steve Menard
//
//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 jpype.proxy;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
public class ProxyExecutor {
private ExecutorService executor;
private List<Future<Integer>> executedTasks = new ArrayList<Future<Integer>>();
private List<ProxyCaller> proxies = new ArrayList<ProxyCaller>();
public ProxyExecutor(int noOfThreads) {
executor = Executors.newFixedThreadPool(noOfThreads);
}
public void shutdown() {
executor.shutdown(); // Disable new tasks from being submitted
try {
// Wait a while for existing tasks to terminate
if (!executor.awaitTermination(5, TimeUnit.SECONDS)) {
executor.shutdownNow(); // Cancel currently executing tasks
// Wait a while for tasks to respond to being cancelled
if (!executor.awaitTermination(5, TimeUnit.SECONDS))
System.err.println("Pool did not terminate");
}
} catch (InterruptedException ie) {
// (Re-)Cancel if current thread also interrupted
executor.shutdownNow();
// Preserve interrupt status
Thread.currentThread().interrupt();
}
}
public void registerProxy(TestInterface4 proxy, int noOfExecutions) {
for (int i = 0; i < noOfExecutions; i++) {
proxies.add(new ProxyCaller(proxy));
}
}
public int getExpectedTasks() {
return proxies.size();
}
public void runExecutor() {
// Collections.shuffle(proxies);
for (ProxyCaller proxy : proxies) {
Future<Integer> future = executor.submit(proxy);
executedTasks.add(future);
}
}
public int waitForExecutedTasks() {
int returns = 0;
for (Future<Integer> task : executedTasks) {
try {
returns += task.get();
} catch (Exception ex) {
System.out.println("An exception has thrown during execution");
ex.printStackTrace();
}
}
return returns;
}
public class ProxyCaller implements Callable<Integer> {
private TestInterface4 proxy;
public ProxyCaller(TestInterface4 proxy) {
this.proxy = proxy;
}
@Override
public Integer call() throws Exception {
int result = 0;
try {
int intValue = proxy.testMethodInt();
ReturnObject objectValue = proxy.testMethodObject();
String stringValue = proxy.testMethodString();
List<ReturnObject> listValue = proxy.testMethodList(5);
} catch (Exception ex) {
ex.printStackTrace();
}
return 1; //result;
}
}
}
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