/*
    * Copyright 2007 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.ksb.messaging;
  
  import org.junit.Test;
  import org.kuali.rice.ksb.api.KsbApiServiceLocator;
  import org.kuali.rice.ksb.messaging.bam.BAMTargetEntry;
  import org.kuali.rice.ksb.messaging.bam.service.BAMService;
  import org.kuali.rice.ksb.messaging.service.KSBJavaService;
  import org.kuali.rice.ksb.service.KSBServiceLocator;
  import org.kuali.rice.ksb.test.KSBTestCase;
  
  import javax.xml.namespace.QName;
  import java.util.List;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  
  /**
   * Tests distributed Queue scenarios
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class DelayedAsynchronousServiceTest extends KSBTestCase {
  
      public boolean startClient1() {
  	return true;
      }
  
      public boolean startClient2() {
  	return true;
      }
  
      @Test public void testDelayedAsynchronousServiceCall() throws Exception {
  	KSBTestUtils.setMessagingToAsync();
  
  	QName serviceName = new QName("testAppsSharedQueue", "sharedQueue");
  
  	// Queue up the service to be called asynchronously after 5 seconds
  	KSBJavaService testJavaAsyncService = (KSBJavaService) KsbApiServiceLocator.getMessageHelper().getServiceAsynchronously(serviceName, "context", "value1", "value2", 5000);
  	testJavaAsyncService.invoke(new ClientAppServiceSharedPayloadObj("message content", false));
  	verifyServiceCalls(serviceName, false);
  
  	// sleep for 1 second, should not have been called
  	Thread.sleep(1000);
  	verifyServiceCalls(serviceName, false);
  
  	// sleep for 1 second, should not have been called
  	Thread.sleep(1000);
  	verifyServiceCalls(serviceName, false);
  
  	// sleep for 1 second, should not have been called
  	Thread.sleep(1000);
  	verifyServiceCalls(serviceName, false);
  
  	Thread.sleep(1000);
  	verifyServiceCalls(serviceName, false);
  
  	// TODO this isn't the best test ever because it's relying on waits and timing which is most likely doomed to occasional
  	// failure in the CI environment.  If this occurs than I may need to yank this.  A better long term solution would be
  	// to allow for the use of callbacks for delayed asynchronous services but that's not something I wanted to try
  	// to tackle at the moment
  
  	// now sleep for 3 more seconds, the call should be invoked
  	Thread.sleep(3000);
  	verifyServiceCalls(serviceName, true);
  
      }
  
      private void verifyServiceCalls(QName serviceName, boolean shouldHaveBeenCalled) throws Exception {
  	BAMService bamService = KSBServiceLocator.getBAMService();
  	List<BAMTargetEntry> bamCalls = bamService.getCallsForService(serviceName);
  	if (!shouldHaveBeenCalled) {
  	    assertTrue("A service call should not have been recorded yet.", bamCalls.size() == 0);
  	} else {
  	    assertTrue("No service call recorded", bamCalls.size() > 0);
  	    boolean foundClientCall = false;
  	    boolean foundServiceCall = false;
  	    for (BAMTargetEntry bamEntry : bamCalls) {
  		if (bamEntry.getServerInvocation()) {
  		    foundServiceCall = true;
  		} else {
  		    foundClientCall = true;
  		}
 	    }
 	    assertTrue("No client call recorded", foundClientCall);
 	    assertTrue("No service call recorded", foundServiceCall);
 	    assertEquals("Wrong number of calls recorded", 2, bamCalls.size());
 	}
     }
 
 }