package org.opendaylight.controller.cluster.raft.utils;
+import akka.actor.ActorRef;
+import akka.actor.Props;
import akka.actor.UntypedActor;
-
+import akka.pattern.Patterns;
+import akka.util.Timeout;
+import com.google.common.base.Predicate;
+import com.google.common.collect.Lists;
+import com.google.common.util.concurrent.Uninterruptibles;
import java.util.ArrayList;
+import java.util.Collections;
import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import org.junit.Assert;
+import org.opendaylight.controller.cluster.raft.SerializationUtils;
+import scala.concurrent.Await;
+import scala.concurrent.Future;
+import scala.concurrent.duration.Duration;
+import scala.concurrent.duration.FiniteDuration;
public class MessageCollectorActor extends UntypedActor {
- private List<Object> messages = new ArrayList<>();
+ private static final String ARE_YOU_READY = "ARE_YOU_READY";
+ private static final String GET_ALL_MESSAGES = "get-all-messages";
+ private static final String CLEAR_MESSAGES = "clear-messages";
+
+ private final List<Object> messages = new ArrayList<>();
@Override public void onReceive(Object message) throws Exception {
- if(message instanceof String){
- if("get-all-messages".equals(message)){
- getSender().tell(messages, getSelf());
+ if(message.equals(ARE_YOU_READY)) {
+ getSender().tell("yes", getSelf());
+ return;
+ }
+
+ if(GET_ALL_MESSAGES.equals(message)) {
+ getSender().tell(new ArrayList<>(messages), getSelf());
+ } else if(CLEAR_MESSAGES.equals(message)) {
+ messages.clear();
+ } else if(message != null) {
+ messages.add(SerializationUtils.fromSerializable(message));
+ }
+ }
+
+ public void clear() {
+ messages.clear();
+ }
+
+ public static List<Object> getAllMessages(ActorRef actor) throws Exception {
+ FiniteDuration operationDuration = Duration.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);
+ }
+
+ public static void clearMessages(ActorRef actor) {
+ actor.tell(CLEAR_MESSAGES, ActorRef.noSender());
+ }
+
+ /**
+ * Get the first message that matches the specified class
+ * @param actor
+ * @param clazz
+ * @return
+ */
+ public static <T> T getFirstMatching(ActorRef actor, Class<T> clazz) throws Exception {
+ List<Object> allMessages = getAllMessages(actor);
+
+ for(Object message : allMessages){
+ if(message.getClass().equals(clazz)){
+ return (T) message;
+ }
+ }
+
+ return null;
+ }
+
+ public static <T> List<T> expectMatching(ActorRef actor, Class<T> clazz, int count) {
+ int timeout = 5000;
+ List<T> messages = Collections.emptyList();
+ for(int i = 0; i < timeout / 50; i++) {
+ try {
+ messages = getAllMatching(actor, clazz);
+ if(messages.size() >= count) {
+ return messages;
+ }
+ } catch (Exception 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;
+ }
+
+ public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz) {
+ return expectFirstMatching(actor, clazz, 5000);
+ }
+
+ public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz, long timeout) {
+ int count = (int) (timeout / 50);
+ for(int i = 0; i < count; i++) {
+ try {
+ T message = getFirstMatching(actor, clazz);
+ if(message != null) {
+ return message;
+ }
+ } catch (Exception e) {}
+
+ Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
+ }
+
+ Assert.fail("Did not receive message of type " + clazz);
+ return null;
+ }
+
+ public static <T> T expectFirstMatching(ActorRef actor, Class<T> clazz, Predicate<T> matcher) {
+ int timeout = 5000;
+ T lastMessage = null;
+ for(int i = 0; i < timeout / 50; i++) {
+ try {
+ List<T> messages = getAllMatching(actor, clazz);
+ for(T msg: messages) {
+ if(matcher.apply(msg)) {
+ return msg;
+ }
+
+ lastMessage = msg;
+ }
+ } catch (Exception 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;
+ }
+
+ public static <T> List<T> getAllMatching(ActorRef actor, Class<T> clazz) throws Exception {
+ List<Object> allMessages = getAllMessages(actor);
+
+ List<T> output = Lists.newArrayList();
+
+ for(Object message : allMessages){
+ if(message.getClass().equals(clazz)){
+ output.add((T) message);
+ }
+ }
+
+ return output;
+ }
+
+ public static void waitUntilReady(ActorRef actor) throws Exception {
+ long timeout = 500;
+ FiniteDuration duration = Duration.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) {
}
- } else {
- messages.add(message);
}
+
+ throw new TimeoutException("Actor not ready in time.");
+ }
+
+ public static Props props() {
+ return Props.create(MessageCollectorActor.class);
}
}
Code Review / controller.git / blobdiff