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-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClient.java34
-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java186
-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorCallBack.java37
-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorService.java45
-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorServiceImpl.java195
-rw-r--r--sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/resources/CallBackSeparateThreadTest.composite31
6 files changed, 528 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClient.java b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClient.java
new file mode 100644
index 0000000000..dc66003604
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClient.java
@@ -0,0 +1,34 @@
+/*
+ * 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.tuscany.sca.itest;
+
+import org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * This is the client interface for the call backs in a separate thread tests
+ */
+@Remotable
+public interface CallBackSeparateThreadClient {
+
+ /**
+ * This tests call back patterns using separate threads.
+ */
+ void runTests();
+}
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java
new file mode 100644
index 0000000000..f03144db8a
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java
@@ -0,0 +1,186 @@
+/*
+ * 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.tuscany.sca.itest;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.junit.Assert;
+import org.oasisopen.sca.annotation.Reference;
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * This is the client implementation for the call backs in a separate thread tests
+ */
+@Service(CallBackSeparateThreadClient.class)
+public class CallBackSeparateThreadClientImpl implements CallBackSeparateThreadClient, EventProcessorCallBack {
+ /**
+ * Max time to wait to receive events. If not all the events are received then timeout.
+ */
+ private static final int TIMEOUT = 30 * 1000;
+
+ /**
+ * Counts the number of fast call backs.
+ */
+ private static final AtomicInteger FAST_CALLBACK_COUNT = new AtomicInteger();
+
+ /**
+ * Counts the number of slow call backs.
+ */
+ private static final AtomicInteger SLOW_CALLBACK_COUNT = new AtomicInteger();
+
+ /**
+ * This is our injected reference to the EventProcessorService
+ */
+ @Reference
+ protected EventProcessorService aCallBackService;
+
+ /**
+ * This tests call back patterns using separate threads.
+ */
+ public void runTests() {
+ try {
+ // Register for fast call back
+ registerForFastCallback();
+
+ // Wait for a few fast call backs
+ System.out.println("Waiting for some fast call backs");
+ waitForSomeFastCallbacks();
+
+ try {
+ // Register for slow call back
+ registerForSlowCallback();
+
+ // Wait for a few fast call backs
+ System.out.println("Waiting for some fast calls");
+ waitForSomeFastCallbacks();
+
+ // Wait for a few slow call backs
+ System.out.println("Waiting for some slow calls");
+ waitForSomeSlowCallbacks();
+ } finally {
+ unregisterForSlowCallback();
+ }
+
+ System.out.println("Done");
+ } finally {
+ unregisterForFastCallback();
+ }
+ }
+
+ /**
+ * Waits for some fast call backs to be fired
+ */
+ private void waitForSomeFastCallbacks() {
+ // Reset the fast call back count
+ FAST_CALLBACK_COUNT.set(0);
+
+ // Wait until we have 10 fast call backs or timeout occurs
+ final long start = System.currentTimeMillis();
+ do {
+ if (FAST_CALLBACK_COUNT.get() >= 10) {
+ System.out.println("Received enough fast notifications");
+ return;
+ }
+
+ try {
+ Thread.sleep(5);
+ } catch (InterruptedException e) {
+ Assert.fail("Unexpeceted exception " + e);
+ }
+ } while (System.currentTimeMillis() - start < TIMEOUT);
+
+ // If we get to here then we did not receive enough events
+ Assert.fail("Did not receive enough fast events");
+ }
+
+ /**
+ * Waits for some slow call backs to be fired
+ */
+ private void waitForSomeSlowCallbacks() {
+ // Reset the slow call back count
+ SLOW_CALLBACK_COUNT.set(0);
+
+ // Wait until we have 4 slow call backs or timeout
+ final long start = System.currentTimeMillis();
+ do {
+ if (SLOW_CALLBACK_COUNT.get() >= 4) {
+ System.out.println("Received enough slow notifications");
+ return;
+ }
+
+ try {
+ Thread.sleep(5);
+ } catch (InterruptedException e) {
+ Assert.fail("Unexpeceted exception " + e);
+ }
+ } while (System.currentTimeMillis() - start < TIMEOUT);
+
+ // If we get to here then we did not receive enough events
+ Assert.fail("Did not receive enough slow events");
+ }
+
+ /**
+ * Register to receive fast call backs
+ */
+ private void registerForFastCallback() {
+ aCallBackService.registerForEvent("FAST");
+ }
+
+ /**
+ * Register to receive slow call backs
+ */
+ private void registerForSlowCallback() {
+ aCallBackService.registerForEvent("SLOW");
+ }
+
+ /**
+ * Unregister to receive fast call backs
+ */
+ private void unregisterForFastCallback() {
+ aCallBackService.unregisterForEvent("FAST");
+ }
+
+ /**
+ * Unregister to receive slow call backs
+ */
+ private void unregisterForSlowCallback() {
+ aCallBackService.unregisterForEvent("SLOW");
+ }
+
+ /**
+ * Method that is called when an Event is delivered.
+ *
+ * @param aEventName The name of the Event
+ * @param aEventData The Event data
+ */
+ public void eventNotification(String aEventName, Object aEventData) {
+ // System.out.println("Received Event : " + aEventName + " " + aEventData);
+
+ if (aEventName.equals("FAST")) {
+ final int newValue = FAST_CALLBACK_COUNT.incrementAndGet();
+ //System.out.println("Received total of " + newValue + " fast call backs");
+ } else if (aEventName.equals("SLOW")) {
+ final int newValue = SLOW_CALLBACK_COUNT.incrementAndGet();
+ //System.out.println("Received total of " + newValue + " slow call backs");
+ } else {
+ System.out.println("Unknown event type of " + aEventName);
+ }
+ }
+}
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorCallBack.java b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorCallBack.java
new file mode 100644
index 0000000000..137ea6a658
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorCallBack.java
@@ -0,0 +1,37 @@
+/*
+ * 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.tuscany.sca.itest;
+
+import org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * The call back interface for the EventProcessorService that is implemented
+ * by the client to receive event notifications
+ */
+@Remotable
+public interface EventProcessorCallBack {
+ /**
+ * Call back notifying client of an Event
+ *
+ * @param aEventName The name of the Event
+ * @param aEventData The data for the Event
+ */
+ void eventNotification(String aEventName, Object aEventData);
+}
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorService.java b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorService.java
new file mode 100644
index 0000000000..4bf05fc925
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorService.java
@@ -0,0 +1,45 @@
+/*
+ * 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.tuscany.sca.itest;
+
+import org.oasisopen.sca.annotation.Callback;
+import org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * Sample Event Processor Service
+ */
+@Callback(EventProcessorCallBack.class)
+@Remotable
+public interface EventProcessorService {
+
+ /**
+ * Registers the client to receive notifications for the specified event
+ *
+ * @param aEventName The name of the Event to register
+ */
+ void registerForEvent(String aEventName);
+
+ /**
+ * Unregisters the client so it no longer receives notifications for the specified event
+ *
+ * @param aEventName The name of the Event to unregister
+ */
+ void unregisterForEvent(String aEventName);
+}
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorServiceImpl.java b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorServiceImpl.java
new file mode 100644
index 0000000000..bec98a49c9
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/EventProcessorServiceImpl.java
@@ -0,0 +1,195 @@
+/*
+ * 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.tuscany.sca.itest;
+
+import java.util.Map;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.annotation.Callback;
+import org.oasisopen.sca.annotation.Destroy;
+import org.oasisopen.sca.annotation.Scope;
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * Sample Event Processor Service Implementation
+ */
+@Service(EventProcessorService.class)
+@Scope("COMPOSITE")
+public class EventProcessorServiceImpl implements EventProcessorService {
+
+ /**
+ * Reference to the call back
+ */
+ @Callback
+ protected ServiceReference<EventProcessorCallBack> clientCallback;
+
+ /**
+ * This map contains the call backs for each of the registered Event names
+ */
+ private final Map<String, ServiceReference<EventProcessorCallBack>> eventListeners;
+
+ /**
+ * The list of all Event Generators we create
+ */
+ private final EventGenerator[] allEventGenerators;
+
+ /**
+ * Constructor. Starts the Event Generators
+ */
+ public EventProcessorServiceImpl() {
+ eventListeners = new ConcurrentHashMap<String, ServiceReference<EventProcessorCallBack>>();
+
+ // We will simulate an Event generator
+ allEventGenerators = new EventGenerator[2];
+ allEventGenerators[0] = new EventGenerator("FAST", 10); // Generate the FAST event every 10ms
+ allEventGenerators[1] = new EventGenerator("SLOW", 50); // Generate the SLOW event every 50ms
+ }
+
+ /**
+ * Registers the client to receive notifications for the specified event
+ *
+ * @param aEventName The name of the Event to register
+ */
+ public void registerForEvent(String aEventName) {
+ // Register for the Event
+ eventListeners.put(aEventName, clientCallback);
+
+ // Send the "register" started event to the client
+ receiveEvent(aEventName, "SameThread: Registered to receive notifications for " + aEventName);
+ }
+
+ /**
+ * Unregisters the client so it no longer receives notifications for the specified event
+ *
+ * @param aEventName The name of the Event to unregister
+ */
+ public void unregisterForEvent(String aEventName) {
+ // Send the "register" started event to the client
+ receiveEvent(aEventName, "SameThread: Unregister from receiving notifications for " + aEventName);
+
+ eventListeners.remove(aEventName);
+ }
+
+ /**
+ * This method is called whenever the EventProcessorService receives an Event
+ *
+ * @param aEventName The name of the Event received
+ * @param aEventData The Event data
+ */
+ private void receiveEvent(String aEventName, Object aEventData) {
+ // Get the listener for the Event
+ final ServiceReference<EventProcessorCallBack> callback = eventListeners.get(aEventName);
+ if (callback == null) {
+ //System.out.println("No registered listeners for " + aEventName);
+ return;
+ }
+
+ // Trigger the call back
+ // System.out.println("Notifying " + callback + " of event " + aEventName);
+ callback.getService().eventNotification(aEventName, aEventData);
+ // System.out.println("Done notify " + callback + " of event " + aEventName);
+ }
+
+ /**
+ * Shuts down the Event Processor
+ */
+ @Destroy
+ public void shutdown() {
+ System.out.println("Shutting down the EventProcessor");
+
+ // Clear list of call back locations as we don't want to send any more notifications
+ eventListeners.clear();
+
+ // Stop the Event Generators
+ for (EventGenerator generator : allEventGenerators) {
+ generator.stop();
+ }
+ }
+
+ /**
+ * Utility class for generating Events
+ */
+ private final class EventGenerator {
+ /**
+ * The Timer we are using to generate the events
+ */
+ private final Timer timer = new Timer();
+
+ /**
+ * Lock object to ensure that we can cancel the timer cleanly.
+ */
+ private final Object lock = new Object();
+
+ /**
+ * Constructor
+ *
+ * @param aEventName The name of the Event to generate
+ * @param frequencyInMilliseconds How frequently we should generate the Events
+ */
+ private EventGenerator(String aEventName, int frequencyInMilliseconds) {
+ timer.schedule(new EventGeneratorTimerTask(aEventName),
+ frequencyInMilliseconds,
+ frequencyInMilliseconds);
+ }
+
+ /**
+ * Stop this Event Generator
+ */
+ private void stop() {
+ synchronized (lock) {
+ timer.cancel();
+ }
+ }
+
+ /**
+ * The TimerTask that is invoked by the Timer for the EventGenerator
+ */
+ private final class EventGeneratorTimerTask extends TimerTask {
+ /**
+ * The name of the Event we should generate
+ */
+ private final String eventName;
+
+ /**
+ * Constructor
+ *
+ * @param aEventName The name of the Event we should generate
+ */
+ private EventGeneratorTimerTask(String aEventName) {
+ eventName = aEventName;
+ }
+
+ /**
+ * Timer calls this method and it will generate an Event
+ */
+
+ public void run() {
+ synchronized(lock) {
+ // System.out.println("Generating new event " + eventName);
+ receiveEvent(eventName, "Separate Thread Notification: " + UUID.randomUUID().toString());
+ }
+ }
+ }
+ }
+}
diff --git a/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/resources/CallBackSeparateThreadTest.composite b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/resources/CallBackSeparateThreadTest.composite
new file mode 100644
index 0000000000..b10f3bc771
--- /dev/null
+++ b/sandbox/sebastien/java/embed/itest/callback-separatethread/src/main/resources/CallBackSeparateThreadTest.composite
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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.
+-->
+<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912" targetNamespace="http://callback" name="CallBackSeparateThreadTest">
+
+ <component name="CallBackSeparateThreadClient">
+ <implementation.java class="org.apache.tuscany.sca.itest.CallBackSeparateThreadClientImpl"/>
+ <reference name="aCallBackService" target="EventProcessorService"/>
+ </component>
+
+ <component name="EventProcessorService">
+ <implementation.java class="org.apache.tuscany.sca.itest.EventProcessorServiceImpl"/>
+ </component>
+
+</composite>