* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.controller.cluster.raft.utils;
import akka.actor.ActorRef;
import akka.actor.Props;
-import akka.actor.UntypedActor;
+import akka.actor.UntypedAbstractActor;
+import akka.dispatch.ControlMessage;
import akka.pattern.Patterns;
import akka.util.Timeout;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
+import com.google.common.base.Throwables;
import com.google.common.collect.Iterables;
-import com.google.common.collect.Lists;
import com.google.common.util.concurrent.Uninterruptibles;
import java.util.ArrayList;
import java.util.Collections;
import org.junit.Assert;
import scala.concurrent.Await;
import scala.concurrent.Future;
-import scala.concurrent.duration.Duration;
import scala.concurrent.duration.FiniteDuration;
-
-public class MessageCollectorActor extends UntypedActor {
+public class MessageCollectorActor extends UntypedAbstractActor {
private static final String ARE_YOU_READY = "ARE_YOU_READY";
public static final String GET_ALL_MESSAGES = "messages";
- private static final String CLEAR_MESSAGES = "clear-messages";
+
+ private static final Object CLEAR_MESSAGES = new ControlMessage() {
+ @Override
+ public String toString() {
+ return "clear-messages";
+ }
+ };
private final List<Object> messages = new ArrayList<>();
- @Override public void onReceive(Object message) throws Exception {
- if(message.equals(ARE_YOU_READY)) {
+ @Override public void onReceive(final Object message) throws Exception {
+ if (ARE_YOU_READY.equals(message)) {
getSender().tell("yes", getSelf());
- return;
- }
-
- if(GET_ALL_MESSAGES.equals(message)) {
+ } else if (GET_ALL_MESSAGES.equals(message)) {
getSender().tell(new ArrayList<>(messages), getSelf());
- } else if(CLEAR_MESSAGES.equals(message)) {
- clear();
- } else if(message != null) {
+ } else if (CLEAR_MESSAGES.equals(message)) {
+ messages.clear();
+ } else if (message != null) {
messages.add(message);
}
}
- public void clear() {
- messages.clear();
- }
-
- private static List<Object> getAllMessages(ActorRef actor) throws Exception {
- FiniteDuration operationDuration = Duration.create(5, TimeUnit.SECONDS);
+ @SuppressWarnings({"unchecked", "checkstyle:illegalCatch"})
+ public static List<Object> getAllMessages(final ActorRef actor) {
+ FiniteDuration operationDuration = FiniteDuration.create(5, TimeUnit.SECONDS);
Timeout operationTimeout = new Timeout(operationDuration);
Future<Object> future = Patterns.ask(actor, GET_ALL_MESSAGES, operationTimeout);
- return (List<Object>) Await.result(future, operationDuration);
+ try {
+ return (List<Object>) Await.result(future, operationDuration);
+ } catch (RuntimeException e) {
+ throw e;
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
}
- public static void clearMessages(ActorRef actor) {
+ public static void clearMessages(final ActorRef actor) {
actor.tell(CLEAR_MESSAGES, ActorRef.noSender());
}
/**
- * Get the first message that matches the specified class
- * @param actor
- * @param clazz
- * @return
+ * Get the first message that matches the specified class.
+ *
+ * @param actor the MessageCollectorActor reference
+ * @param clazz the class to match
+ * @return the first matching message
*/
- public static <T> T getFirstMatching(ActorRef actor, Class<T> clazz) throws Exception {
+ public static <T> T getFirstMatching(final ActorRef actor, final Class<T> clazz) {
List<Object> allMessages = getAllMessages(actor);
- for(Object message : allMessages){
- if(message.getClass().equals(clazz)){
+ for (Object message : allMessages) {
+ if (message.getClass().equals(clazz)) {
return clazz.cast(message);
}
}
return null;
}
- public static <T> List<T> expectMatching(ActorRef actor, Class<T> clazz, int count) {
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public static <T> List<T> expectMatching(final ActorRef actor, final Class<T> clazz, final int count) {
return expectMatching(actor, clazz, count, msg -> true);
}
- public static <T> List<T> expectMatching(ActorRef actor, Class<T> clazz, int count,
- Predicate<T> matcher) {
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public static <T> List<T> expectMatching(final ActorRef actor, final Class<T> clazz, final int count,
+ final Predicate<T> matcher) {
int timeout = 5000;
+ Exception lastEx = null;
List<T> messages = Collections.emptyList();
- for(int i = 0; i < timeout / 50; i++) {
+ for (int i = 0; i < timeout / 50; i++) {
try {
messages = getAllMatching(actor, clazz);
Iterables.removeIf(messages, Predicates.not(matcher));
- if(messages.size() >= count) {
+ if (messages.size() >= count) {
return messages;
}
- } catch (Exception e) {}
+
+ lastEx = null;
+ } catch (Exception e) {
+ lastEx = e;
+ }
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
- Assert.fail(String.format("Expected %d messages of type %s. Actual received was %d: %s", count, clazz,
- messages.size(), messages));
- return null;
+ throw new AssertionError(String.format("Expected %d messages of type %s. Actual received was %d: %s", count,
+ clazz, messages.size(), messages), lastEx);
}
- public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz) {
+ public static <T> T expectFirstMatching(final ActorRef actor, final Class<T> clazz) {
return expectFirstMatching(actor, clazz, 5000);
}
-
- public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz, long timeout) {
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public static <T> T expectFirstMatching(final ActorRef actor, final Class<T> clazz, final long timeout) {
+ Exception lastEx = null;
int count = (int) (timeout / 50);
- for(int i = 0; i < count; i++) {
+ for (int i = 0; i < count; i++) {
try {
T message = getFirstMatching(actor, clazz);
- if(message != null) {
+ if (message != null) {
return message;
}
- } catch (Exception e) {}
+
+ lastEx = null;
+ } catch (Exception e) {
+ lastEx = e;
+ }
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
- Assert.fail("Did not receive message of type " + clazz);
- return null;
+ throw new AssertionError(actor + ": Did not receive message of type " + clazz + ", Actual received was "
+ + getAllMessages(actor), lastEx);
}
- public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz, Predicate<T> matcher) {
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public static <T> T expectFirstMatching(final ActorRef actor, final Class<T> clazz, final Predicate<T> matcher) {
int timeout = 5000;
+ Exception lastEx = null;
T lastMessage = null;
- for(int i = 0; i < timeout / 50; i++) {
+ for (int i = 0; i < timeout / 50; i++) {
try {
List<T> messages = getAllMatching(actor, clazz);
- for(T msg: messages) {
- if(matcher.apply(msg)) {
+ for (T msg : messages) {
+ if (matcher.apply(msg)) {
return msg;
}
lastMessage = msg;
}
- } catch (Exception e) {}
+
+ lastEx = null;
+ } catch (Exception e) {
+ lastEx = e;
+ }
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
- Assert.fail(String.format("Expected specific message of type %s. Last message received was: %s", clazz, lastMessage));
- return null;
+ throw new AssertionError(String.format("Expected specific message of type %s. Last message received was: %s",
+ clazz, lastMessage), lastEx);
}
- public static <T> void assertNoneMatching(ActorRef actor, Class<T> clazz) {
+ public static <T> void assertNoneMatching(final ActorRef actor, final Class<T> clazz) {
assertNoneMatching(actor, clazz, 5000);
}
- public static <T> void assertNoneMatching(ActorRef actor, Class<T> clazz, long timeout) {
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public static <T> void assertNoneMatching(final ActorRef actor, final Class<T> clazz, final long timeout) {
+ Exception lastEx = null;
int count = (int) (timeout / 50);
- for(int i = 0; i < count; i++) {
+ for (int i = 0; i < count; i++) {
try {
T message = getFirstMatching(actor, clazz);
- if(message != null) {
+ if (message != null) {
Assert.fail("Unexpected message received" + message.toString());
return;
}
- } catch (Exception e) {}
+
+ lastEx = null;
+ } catch (Exception e) {
+ lastEx = e;
+ }
Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
}
+ if (lastEx != null) {
+ Throwables.throwIfUnchecked(lastEx);
+ throw new RuntimeException(lastEx);
+ }
+
return;
}
- public static <T> List<T> getAllMatching(ActorRef actor, Class<T> clazz) throws Exception {
+ public static <T> List<T> getAllMatching(final ActorRef actor, final Class<T> clazz) {
List<Object> allMessages = getAllMessages(actor);
- List<T> output = Lists.newArrayList();
+ List<T> output = new ArrayList<>();
- for(Object message : allMessages){
- if(message.getClass().equals(clazz)){
+ for (Object message : allMessages) {
+ if (message.getClass().equals(clazz)) {
output.add(clazz.cast(message));
}
}
return output;
}
- public static void waitUntilReady(ActorRef actor) throws Exception {
+ public static void waitUntilReady(final ActorRef actor) throws TimeoutException, InterruptedException {
long timeout = 500;
- FiniteDuration duration = Duration.create(timeout, TimeUnit.MILLISECONDS);
- for(int i = 0; i < 10; i++) {
+ FiniteDuration duration = FiniteDuration.create(timeout, TimeUnit.MILLISECONDS);
+ for (int i = 0; i < 10; i++) {
try {
Await.ready(Patterns.ask(actor, ARE_YOU_READY, timeout), duration);
return;
} catch (TimeoutException e) {
+ // will fall through below
}
}