/*
* Copyright (c) 2003-2009, KNOPFLERFISH project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
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*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* - Neither the name of the KNOPFLERFISH project nor the names of its
* contributors may be used to endorse or promote products derived
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package org.knopflerfish.bundle.eventadmin_test.scenario2.impl;
import java.util.Calendar;
import java.util.Dictionary;
import java.util.Hashtable;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventAdmin;
import org.osgi.service.event.EventConstants;
import org.osgi.service.event.EventHandler;
import org.osgi.service.event.TopicPermission;
import org.knopflerfish.bundle.eventadmin_test.scenario2.Scenario2;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Test suite for testing the requirements specified in the test specification
* for the EventAdmin service.
*
* Check the Topic sorting of events, both synchronous and asynchronous.
*
* @author Martin Berg
*
*/
public class Scenario2TestSuite extends TestSuite implements Scenario2 {
/** bundle context variable */
BundleContext bundleContext;
/**
* Constructor for the TestSuite class.
*
* @param context
* the handle to the frame work
*/
public Scenario2TestSuite(BundleContext context) {
super("Scenario 2");
/* assign the bundelContext variable */
bundleContext = context;
/* create a topic string */
String[] scenario2_topics1 = { "com/acme/timer" };
String[] scenario2_topics2 = { "*" };
String[] scenario2_topicsToPublish = {
"",
"cOM/AcMe/TiMeR",
"com.acme.timer",
"com/acme/timer"
};
/* add the setup */
addTest(new Setup());
/* add the event consumers to the test suite */
EventConsumer[] eventConsumer = new EventConsumer[] {
new EventConsumer(bundleContext, scenario2_topics1,
1,1, "Scenario 2 EventConsumer1", 2),
new EventConsumer(bundleContext, scenario2_topics2,
2,2, "Scenario 2 EventConsumer2", 2) };
addTest(eventConsumer[1]);
addTest(eventConsumer[0]);
/* add the event publisher to the test suite */
addTest(new EventPublisher(bundleContext, "Scenario 2 EventPublisher",
scenario2_topicsToPublish, 2, 4));
/* add the cleanup class */
addTest(new Cleanup(eventConsumer));
}
/**
* Sets up neccessary environment
*
*@author Magnus Klack
*/
class Setup extends TestCase {
public Setup(){
}
public void runTest() throws Throwable {
}
public String getName() {
String name = getClass().getName();
int ix = name.lastIndexOf("$");
if(ix == -1) {
ix = name.lastIndexOf(".");
}
if(ix != -1) {
name = name.substring(ix + 1);
}
return name;
}
}
/**
* Clean up the test suite
*
* @author Magnus Klack
*/
class Cleanup extends TestCase {
private EventConsumer[] eventConsumer;
public Cleanup(EventConsumer[] eventConsumer) {
this.eventConsumer = eventConsumer;
}
public void runTest() throws Throwable {
Throwable error = null;
for (int i=0; i<eventConsumer.length; i++) {
try {
eventConsumer[i].cleanup();
} catch (Throwable e) {
error = e;
}
}
if (error != null) throw error;
}
public String getName() {
String name = getClass().getName();
int ix = name.lastIndexOf("$");
if(ix == -1) {
ix = name.lastIndexOf(".");
}
if(ix != -1) {
name = name.substring(ix + 1);
}
return name;
}
}
class EventPublisher extends TestCase {
/** A reference to a service */
private ServiceReference serviceReference;
/** The admin which delivers the events */
private EventAdmin eventAdmin;
/** A calendar used to get the system time */
private Calendar calendar;
/** a variable indicating if the publisher is running */
private boolean running;
/** class variable holding bundle context */
private BundleContext bundleContext;
/** variable holding messages to send */
private int messageTosend;
/** variable holding the topic to send */
private String[] topicsToSend;
public EventPublisher(BundleContext context, String name, String[] topics,
int id, int numOfMessage) {
/* call super class */
super(name + ":" + id);
/* assign number of messages */
messageTosend = numOfMessage;
/* assign bundleContext */
bundleContext = context;
/* assign topicsToSend */
topicsToSend = topics;
}
public void runTest() throws Throwable {
/* Claims the reference of the EventAdmin Service */
serviceReference = bundleContext
.getServiceReference(EventAdmin.class.getName());
/* assert that a reference is aquired */
assertNotNull(getName()
+ " Should be able to get reference to EventAdmin service",
serviceReference);
if (serviceReference == null) {
fail(getName() + " service reference should not be null");
}
eventAdmin = (EventAdmin) bundleContext
.getService(serviceReference);
assertNotNull(getName()
+ " Should be able to get instance to EventAdmin object");
if (eventAdmin == null) {
fail(getName() + " event admin should not be null");
}
Thread synchDeliver = new Thread() {
public void run() {
for (int i = 0; i < messageTosend; i++) {
try{
/* a Hash table to store message in */
Dictionary message = new Hashtable();
/* put some properties into the messages */
message.put("Synchronus message",new Integer(i));
/* send the message */
System.out.println(getName() + " sending a synchronus event with message:" +
message.toString() + "and the topic:" + topicsToSend[i]);
eventAdmin.sendEvent(new Event(topicsToSend[i], message));
}catch(Exception e){
System.out.println("Error when publishing synhronous" + e);
}
}
}
};
synchDeliver.start();
/* wait until thread is dead */
synchDeliver.join();
Thread asynchDeliver = new Thread() {
public void run() {
for (int i = 0; i < messageTosend; i++) {
try{
/* create the hasht table */
Dictionary message = new Hashtable();
/* create the message */
message.put("Asynchronus message",new Integer(i));
/* Sends a synchronous event to the admin */
System.out.println(getName() + " sending an Asynchronus event with message:" +
message.toString() + "and the topic:" + topicsToSend[i]);
eventAdmin.postEvent(new Event(topicsToSend[i], message));
}catch(Exception e){
System.out.println("Error when publishing asynhronous:" +e );
}
}
}
};
asynchDeliver.start();
/* wait until thread is dead */
asynchDeliver.join();
bundleContext.ungetService(serviceReference);
try {
Thread.sleep(500); // allow for delivery
} catch (Exception ignore) {}
}
}
class EventConsumer extends TestCase implements EventHandler {
/** class variable for service registration */
private ServiceRegistration serviceRegistration;
/** class variable indicatinghthe instance name */
private int instanceId;
/** class variable indicating the topics */
private String[] topicsToConsume;
/** class variable keeping number of asynchronus message */
private int asynchMessages=0;
/** class variable keeping number of asynchronus message */
private int synchMessages=0;
/** class variable indication the number of synchronous messages to be received */
private int numSyncMessages;
/** class variable indication the number of asynchronous messages to be received */
private int numAsyncMessages;
private Throwable error;
/**
* Constructor creates a consumer service
*
* @param bundleContext
* @param topics
*/
public EventConsumer(BundleContext bundleContext, String[] topics,
int numSyncMsg, int numAsyncMsg, String name, int id) {
/* call super class */
super(name + ":" + id);
/* assign the instance id */
instanceId = id;
/* assign the consume topics */
topicsToConsume = topics;
/*assign the number of synchronous messages to consume*/
numSyncMessages = numSyncMsg;
/*assign the number of asynchronous messages to consume*/
numAsyncMessages = numAsyncMsg;
}
public void runTest() throws Throwable {
asynchMessages=0;
synchMessages=0;
/* create the hashtable to put properties in */
Dictionary props = new Hashtable();
/* put service.pid property in hashtable */
props.put(EventConstants.EVENT_TOPIC, topicsToConsume);
/* register the service */
serviceRegistration = bundleContext.registerService(
EventHandler.class.getName(), this, props);
assertNotNull(getName()
+ " service registration should not be null",
serviceRegistration);
if (serviceRegistration == null) {
fail("Could not get Service Registration ");
}
}
public void cleanup() throws Throwable {
try {
serviceRegistration.unregister();
} catch (IllegalStateException ignore) {}
if (error != null) {
throw error;
}
assertTrue("Not all synch messages recieved", synchMessages == numSyncMessages);
assertTrue("Not all asynch messages recieved", asynchMessages == numAsyncMessages);
}
/**
* This method takes events from the event admin service.
*/
public void handleEvent(Event event) {
try {
/* get the topic from the event*/
String eventTopic = event.getTopic();
/* make a topic permission from the received topic in order to check it*/
TopicPermission permissionAccuired = new TopicPermission(eventTopic, "SUBSCRIBE");
/* make a topic permission from the topic to consume in order to check it*/
TopicPermission actualPermission = new TopicPermission(topicsToConsume[0], "SUBSCRIBE");
/* assert if the topic in the event is the same as the topic to listen fore including wildcard */
assertTrue("The topics was not equal", actualPermission.implies(permissionAccuired));
Object message;
/* try to get the message */
message = event.getProperty("Synchronus message");
if(message != null){
/* its an asyncronous message */
System.out.println(getName() + " recived an Synchronus event with message:" + message.toString());
/* assert that the messages of syncronous type are not to many */
assertTrue("to many synchronous messages", synchMessages < numSyncMessages);
synchMessages++;
System.out.println("Max number of Sync messages is:"+numSyncMessages+"and number of received Sync messages is:"+ synchMessages);
}else{
message = event.getProperty("Asynchronus message");
if(message!=null){
System.out.println(getName() + " recived an Asynchronus event with message:" + message.toString());
/* assert that the messsage of the asyncronous type are not to many */
assertTrue("to many asynchronous messages", asynchMessages < numAsyncMessages);
asynchMessages++;
System.out.println("Max number of Async messages is:"+numAsyncMessages+"and number of received Async messages is:"+ asynchMessages);
}
}
} catch (RuntimeException e) {
error = e;
throw e;
} catch (Throwable e) {
error = e;
}
}
}
}