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Fixed Checkstyle errors.

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This commit is contained in:
WSSIA 2016-08-09 00:32:05 +01:00
parent e1836fee2f
commit f11597136f
5 changed files with 130 additions and 75 deletions
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69
event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/App.java
View File

@ -50,6 +50,11 @@ public class App {
boolean interactiveMode = false;
/**
* Program entry point.
*
* @param args command line args
*/
public static void main(String[] args) {
App app = new App();
@ -71,6 +76,7 @@ public class App {
try {
prop.load(inputStream);
} catch (IOException e) {
System.out.println(propFileName + " was not found. Defaulting to non-interactive mode.");
}
String property = prop.getProperty("INTERACTIVE_MODE");
if (property.equalsIgnoreCase("YES")) {
@ -79,6 +85,9 @@ public class App {
}
}
/**
* Run program in either interactive mode or not.
*/
public void run() {
if (interactiveMode) {
runInteractiveMode();
@ -87,29 +96,32 @@ public class App {
}
}
/**
* Run program in non-interactive mode.
*/
public void quickRun() {
EventManager eventManager = new EventManager();
try {
// Create an Asynchronous event.
int aEventID = eventManager.createAsyncEvent(60);
System.out.println("Event [" + aEventID + "] has been created.");
eventManager.startEvent(aEventID);
System.out.println("Event [" + aEventID + "] has been started.");
int aEventId = eventManager.createAsyncEvent(60);
System.out.println("Event [" + aEventId + "] has been created.");
eventManager.startEvent(aEventId);
System.out.println("Event [" + aEventId + "] has been started.");
// Create a Synchronous event.
int sEventID = eventManager.createSyncEvent(60);
System.out.println("Event [" + sEventID + "] has been created.");
eventManager.startEvent(sEventID);
System.out.println("Event [" + sEventID + "] has been started.");
int sEventId = eventManager.createSyncEvent(60);
System.out.println("Event [" + sEventId + "] has been created.");
eventManager.startEvent(sEventId);
System.out.println("Event [" + sEventId + "] has been started.");
eventManager.getStatus(aEventID);
eventManager.getStatus(sEventID);
eventManager.getStatus(aEventId);
eventManager.getStatus(sEventId);
eventManager.stopEvent(aEventID);
System.out.println("Event [" + aEventID + "] has been stopped.");
eventManager.stopEvent(sEventID);
System.out.println("Event [" + sEventID + "] has been stopped.");
eventManager.stopEvent(aEventId);
System.out.println("Event [" + aEventId + "] has been stopped.");
eventManager.stopEvent(sEventId);
System.out.println("Event [" + sEventId + "] has been stopped.");
} catch (MaxNumOfEventsAllowedException | LongRunningEventException | EventDoesNotExistException
| InvalidOperationException e) {
@ -117,6 +129,9 @@ public class App {
}
}
/**
* Run program in interactive mode.
*/
public void runInteractiveMode() {
EventManager eventManager = new EventManager();
@ -137,19 +152,19 @@ public class App {
int eventTime = s.nextInt();
if (eventType.equalsIgnoreCase("A")) {
try {
int eventID = eventManager.createAsyncEvent(eventTime);
System.out.println("Event [" + eventID + "] has been created.");
eventManager.startEvent(eventID);
System.out.println("Event [" + eventID + "] has been started.");
int eventId = eventManager.createAsyncEvent(eventTime);
System.out.println("Event [" + eventId + "] has been created.");
eventManager.startEvent(eventId);
System.out.println("Event [" + eventId + "] has been started.");
} catch (MaxNumOfEventsAllowedException | LongRunningEventException | EventDoesNotExistException e) {
System.out.println(e.getMessage());
}
} else if (eventType.equalsIgnoreCase("S")) {
try {
int eventID = eventManager.createSyncEvent(eventTime);
System.out.println("Event [" + eventID + "] has been created.");
eventManager.startEvent(eventID);
System.out.println("Event [" + eventID + "] has been started.");
int eventId = eventManager.createSyncEvent(eventTime);
System.out.println("Event [" + eventId + "] has been created.");
eventManager.startEvent(eventId);
System.out.println("Event [" + eventId + "] has been started.");
} catch (MaxNumOfEventsAllowedException | InvalidOperationException | LongRunningEventException
| EventDoesNotExistException e) {
System.out.println(e.getMessage());
@ -159,18 +174,18 @@ public class App {
}
} else if (option == 2) {
System.out.print("Event ID: ");
int eventID = s.nextInt();
int eventId = s.nextInt();
try {
eventManager.stopEvent(eventID);
System.out.println("Event [" + eventID + "] has been stopped.");
eventManager.stopEvent(eventId);
System.out.println("Event [" + eventId + "] has been stopped.");
} catch (EventDoesNotExistException e) {
System.out.println(e.getMessage());
}
} else if (option == 3) {
System.out.print("Event ID: ");
int eventID = s.nextInt();
int eventId = s.nextInt();
try {
eventManager.getStatus(eventID);
eventManager.getStatus(eventId);
} catch (EventDoesNotExistException e) {
System.out.println(e.getMessage());
}

12
event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/Event.java
View File

@ -23,15 +23,15 @@ package com.iluwatar.event.asynchronous;
*/
public class Event implements IEvent, Runnable {
private int eventID;
private int eventId;
private int eventTime;
private Thread thread;
private long counter = 0;
private boolean isComplete = false;
private ThreadCompleteListener eventListener;
public Event(int eventID, int eventTime) {
this.eventID = eventID;
public Event(int eventId, int eventTime) {
this.eventId = eventId;
this.eventTime = eventTime;
}
@ -49,9 +49,9 @@ public class Event implements IEvent, Runnable {
@Override
public void status() {
if (!isComplete) {
System.out.println("[" + eventID + "] I am at not done. [" + counter + "%]");
System.out.println("[" + eventId + "] I am at not done. [" + counter + "%]");
} else {
System.out.println("[" + eventID + "] I am done.");
System.out.println("[" + eventId + "] I am done.");
}
}
@ -81,7 +81,7 @@ public class Event implements IEvent, Runnable {
private final void notifyListener() {
if (eventListener != null) {
eventListener.notifyOfThreadComplete(eventID);
eventListener.notifyOfThreadComplete(eventId);
}
}

102
event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/EventManager.java
View File

@ -32,34 +32,53 @@ import java.util.concurrent.ConcurrentHashMap;
*/
public class EventManager implements ThreadCompleteListener {
private int minID = 1;
private int maxID = Integer.MAX_VALUE - 1; // Be cautious of overflows.
private int minId = 1;
private int maxId = Integer.MAX_VALUE - 1; // Be cautious of overflows.
private int maxRunningEvents = 1000; // no particular reason. Just don't wanna have too many running events. :)
private int maxEventTime = 1800; // in seconds / 30 minutes.
private int currentlyRunningSyncEvent = -1;
private Random rand;
private Map<Integer, Event> eventPool;
/**
* EventManager constructor.
*
*/
public EventManager() {
rand = new Random(1);
eventPool = new ConcurrentHashMap<Integer, Event>(maxRunningEvents);
}
// Create a Synchronous event.
/**
* Create a Synchronous event.
*
* @param eventTime Time an event should run for.
* @return eventId
* @throws MaxNumOfEventsAllowedException When too many events are running at a time.
* @throws InvalidOperationException No new synchronous events can be created when one is already running.
* @throws LongRunningEventException Long running events are not allowed in the app.
*/
public int createSyncEvent(int eventTime)
throws MaxNumOfEventsAllowedException, InvalidOperationException, LongRunningEventException {
int eventID = createEvent(eventTime);
int eventId = createEvent(eventTime);
if (currentlyRunningSyncEvent != -1) {
throw new InvalidOperationException(
"Event [" + currentlyRunningSyncEvent + "] is still running. Please wait until it finishes and try again.");
}
currentlyRunningSyncEvent = eventID;
currentlyRunningSyncEvent = eventId;
return eventID;
return eventId;
}
// Create an Asynchronous event.
/**
* Create an Asynchronous event.
*
* @param eventTime Time an event should run for.
* @return eventId
* @throws MaxNumOfEventsAllowedException When too many events are running at a time.
* @throws LongRunningEventException Long running events are not allowed in the app.
*/
public int createAsyncEvent(int eventTime) throws MaxNumOfEventsAllowedException, LongRunningEventException {
return createEvent(eventTime);
}
@ -74,44 +93,65 @@ public class EventManager implements ThreadCompleteListener {
"Maximum event time allowed is " + maxEventTime + " seconds. Please try again.");
}
int newEventID = generateID();
int newEventId = generateId();
Event newEvent = new Event(newEventID, eventTime);
Event newEvent = new Event(newEventId, eventTime);
newEvent.addListener(this);
eventPool.put(newEventID, newEvent);
eventPool.put(newEventId, newEvent);
return newEventID;
return newEventId;
}
public void startEvent(int eventID) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventID)) {
throw new EventDoesNotExistException(eventID + " does not exist.");
/**
* Starts event.
*
* @param eventId The event that needs to be started.
* @throws EventDoesNotExistException If event does not exist in our eventPool.
*/
public void startEvent(int eventId) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventId)) {
throw new EventDoesNotExistException(eventId + " does not exist.");
}
eventPool.get(eventID).start();
eventPool.get(eventId).start();
}
public void stopEvent(int eventID) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventID)) {
throw new EventDoesNotExistException(eventID + " does not exist.");
/**
* Stops event.
*
* @param eventId The event that needs to be stopped.
* @throws EventDoesNotExistException If event does not exist in our eventPool.
*/
public void stopEvent(int eventId) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventId)) {
throw new EventDoesNotExistException(eventId + " does not exist.");
}
if (eventID == currentlyRunningSyncEvent) {
if (eventId == currentlyRunningSyncEvent) {
currentlyRunningSyncEvent = -1;
}
eventPool.get(eventID).stop();
eventPool.remove(eventID);
eventPool.get(eventId).stop();
eventPool.remove(eventId);
}
public void getStatus(int eventID) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventID)) {
throw new EventDoesNotExistException(eventID + " does not exist.");
/**
* Get status of a running event.
*
* @param eventId The event to inquire status of.
* @throws EventDoesNotExistException If event does not exist in our eventPool.
*/
public void getStatus(int eventId) throws EventDoesNotExistException {
if (!eventPool.containsKey(eventId)) {
throw new EventDoesNotExistException(eventId + " does not exist.");
}
eventPool.get(eventID).status();
eventPool.get(eventId).status();
}
/**
* Gets status of all running events.
*/
@SuppressWarnings("rawtypes")
public void getStatusOfAllEvents() {
Iterator it = eventPool.entrySet().iterator();
@ -125,12 +165,12 @@ public class EventManager implements ThreadCompleteListener {
* Returns a pseudo-random number between min and max, inclusive. The difference between min and max can be at most
* <code>Integer.MAX_VALUE - 1</code>.
*/
private int generateID() {
private int generateId() {
// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomNum = rand.nextInt((maxID - minID) + 1) + minID;
int randomNum = rand.nextInt((maxId - minId) + 1) + minId;
while (eventPool.containsKey(randomNum)) {
randomNum = rand.nextInt((maxID - minID) + 1) + minID;
randomNum = rand.nextInt((maxId - minId) + 1) + minId;
}
return randomNum;
@ -140,9 +180,9 @@ public class EventManager implements ThreadCompleteListener {
* Callback from an {@link Event} (once it is complete). The Event is then removed from the pool.
*/
@Override
public void notifyOfThreadComplete(int eventID) {
eventPool.get(eventID).status();
eventPool.remove(eventID);
public void notifyOfThreadComplete(int eventId) {
eventPool.get(eventId).status();
eventPool.remove(eventId);
}
}

2
event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/ThreadCompleteListener.java
View File

@ -17,5 +17,5 @@
package com.iluwatar.event.asynchronous;
public interface ThreadCompleteListener {
void notifyOfThreadComplete(final int eventID);
void notifyOfThreadComplete(final int eventId);
}

20
event-asynchronous/src/test/java/com/iluwatar/event/asynchronous/EventAsynchronousTest.java
View File

@ -36,9 +36,9 @@ public class EventAsynchronousTest {
public void testAsynchronousEvent() {
EventManager eventManager = new EventManager();
try {
int aEventID = eventManager.createAsyncEvent(60);
eventManager.startEvent(aEventID);
eventManager.stopEvent(aEventID);
int aEventId = eventManager.createAsyncEvent(60);
eventManager.startEvent(aEventId);
eventManager.stopEvent(aEventId);
} catch (MaxNumOfEventsAllowedException | LongRunningEventException | EventDoesNotExistException e) {
System.out.println(e.getMessage());
}
@ -48,9 +48,9 @@ public class EventAsynchronousTest {
public void testSynchronousEvent() {
EventManager eventManager = new EventManager();
try {
int sEventID = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventID);
eventManager.stopEvent(sEventID);
int sEventId = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventId);
eventManager.stopEvent(sEventId);
} catch (MaxNumOfEventsAllowedException | LongRunningEventException | EventDoesNotExistException
| InvalidOperationException e) {
System.out.println(e.getMessage());
@ -61,10 +61,10 @@ public class EventAsynchronousTest {
public void testUnsuccessfulSynchronousEvent() {
EventManager eventManager = new EventManager();
try {
int sEventID = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventID);
sEventID = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventID);
int sEventId = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventId);
sEventId = eventManager.createSyncEvent(60);
eventManager.startEvent(sEventId);
} catch (MaxNumOfEventsAllowedException | LongRunningEventException | EventDoesNotExistException
| InvalidOperationException e) {
System.out.println(e.getMessage());