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Diffstat (limited to 'sandbox/ant/sca/tags/2.0-M2/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java')
-rw-r--r-- | sandbox/ant/sca/tags/2.0-M2/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/sandbox/ant/sca/tags/2.0-M2/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java b/sandbox/ant/sca/tags/2.0-M2/itest/callback-separatethread/src/main/java/org/apache/tuscany/sca/itest/CallBackSeparateThreadClientImpl.java new file mode 100644 index 0000000000..f03144db8a --- /dev/null +++ b/sandbox/ant/sca/tags/2.0-M2/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); + } + } +} |