import java.util.List;
import java.util.Map;
import java.util.Optional;
-import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
final CountDownLatch latch;
final Class<?> ofType;
- public WriteMessagesComplete(int count, Class<?> ofType) {
+ WriteMessagesComplete(int count, Class<?> ofType) {
this.latch = new CountDownLatch(count);
this.ofType = ofType;
}
static final Logger LOG = LoggerFactory.getLogger(InMemoryJournal.class);
- private static final Map<String, Map<Long, Object>> journals = new ConcurrentHashMap<>();
+ private static final Map<String, Map<Long, Object>> JOURNALS = new ConcurrentHashMap<>();
- private static final Map<String, CountDownLatch> deleteMessagesCompleteLatches = new ConcurrentHashMap<>();
+ private static final Map<String, CountDownLatch> DELETE_MESSAGES_COMPLETE_LATCHES = new ConcurrentHashMap<>();
- private static final Map<String, WriteMessagesComplete> writeMessagesComplete = new ConcurrentHashMap<>();
+ private static final Map<String, WriteMessagesComplete> WRITE_MESSAGES_COMPLETE = new ConcurrentHashMap<>();
- private static final Map<String, CountDownLatch> blockReadMessagesLatches = new ConcurrentHashMap<>();
+ private static final Map<String, CountDownLatch> BLOCK_READ_MESSAGES_LATCHES = new ConcurrentHashMap<>();
private static Object deserialize(Object data) {
return data instanceof byte[] ? SerializationUtils.deserialize((byte[])data) : data;
}
public static void addEntry(String persistenceId, long sequenceNr, Object data) {
- Map<Long, Object> journal = journals.get(persistenceId);
- if(journal == null) {
+ Map<Long, Object> journal = JOURNALS.get(persistenceId);
+ if (journal == null) {
journal = Maps.newLinkedHashMap();
- journals.put(persistenceId, journal);
+ JOURNALS.put(persistenceId, journal);
}
synchronized (journal) {
- journal.put(sequenceNr, data instanceof Serializable ?
- SerializationUtils.serialize((Serializable) data) : data);
+ journal.put(sequenceNr, data instanceof Serializable
+ ? SerializationUtils.serialize((Serializable) data) : data);
}
}
public static void clear() {
- journals.clear();
+ JOURNALS.clear();
}
@SuppressWarnings("unchecked")
public static <T> List<T> get(String persistenceId, Class<T> type) {
- Map<Long, Object> journalMap = journals.get(persistenceId);
- if(journalMap == null) {
+ Map<Long, Object> journalMap = JOURNALS.get(persistenceId);
+ if (journalMap == null) {
return Collections.<T>emptyList();
}
synchronized (journalMap) {
List<T> journal = new ArrayList<>(journalMap.size());
- for(Object entry: journalMap.values()) {
+ for (Object entry: journalMap.values()) {
Object data = deserialize(entry);
- if(type.isInstance(data)) {
+ if (type.isInstance(data)) {
journal.add((T) data);
}
}
}
public static Map<Long, Object> get(String persistenceId) {
- Map<Long, Object> journalMap = journals.get(persistenceId);
+ Map<Long, Object> journalMap = JOURNALS.get(persistenceId);
return journalMap != null ? journalMap : Collections.<Long, Object>emptyMap();
}
public static void dumpJournal(String persistenceId) {
StringBuilder builder = new StringBuilder(String.format("Journal log for %s:", persistenceId));
- Map<Long, Object> journalMap = journals.get(persistenceId);
- if(journalMap != null) {
+ Map<Long, Object> journalMap = JOURNALS.get(persistenceId);
+ if (journalMap != null) {
synchronized (journalMap) {
- for(Map.Entry<Long, Object> e: journalMap.entrySet()) {
+ for (Map.Entry<Long, Object> e: journalMap.entrySet()) {
builder.append("\n ").append(e.getKey()).append(" = ").append(e.getValue());
}
}
}
public static void waitForDeleteMessagesComplete(String persistenceId) {
- if(!Uninterruptibles.awaitUninterruptibly(deleteMessagesCompleteLatches.get(persistenceId), 5, TimeUnit.SECONDS)) {
+ if (!Uninterruptibles.awaitUninterruptibly(DELETE_MESSAGES_COMPLETE_LATCHES.get(persistenceId),
+ 5, TimeUnit.SECONDS)) {
throw new AssertionError("Delete messages did not complete");
}
}
public static void waitForWriteMessagesComplete(String persistenceId) {
- if(!Uninterruptibles.awaitUninterruptibly(writeMessagesComplete.get(persistenceId).latch, 5, TimeUnit.SECONDS)) {
+ if (!Uninterruptibles.awaitUninterruptibly(WRITE_MESSAGES_COMPLETE.get(persistenceId).latch,
+ 5, TimeUnit.SECONDS)) {
throw new AssertionError("Journal write messages did not complete");
}
}
public static void addDeleteMessagesCompleteLatch(String persistenceId) {
- deleteMessagesCompleteLatches.put(persistenceId, new CountDownLatch(1));
+ DELETE_MESSAGES_COMPLETE_LATCHES.put(persistenceId, new CountDownLatch(1));
}
public static void addWriteMessagesCompleteLatch(String persistenceId, int count) {
- writeMessagesComplete.put(persistenceId, new WriteMessagesComplete(count, null));
+ WRITE_MESSAGES_COMPLETE.put(persistenceId, new WriteMessagesComplete(count, null));
}
public static void addWriteMessagesCompleteLatch(String persistenceId, int count, Class<?> ofType) {
- writeMessagesComplete.put(persistenceId, new WriteMessagesComplete(count, ofType));
+ WRITE_MESSAGES_COMPLETE.put(persistenceId, new WriteMessagesComplete(count, ofType));
}
public static void addBlockReadMessagesLatch(String persistenceId, CountDownLatch latch) {
- blockReadMessagesLatches.put(persistenceId, latch);
+ BLOCK_READ_MESSAGES_LATCHES.put(persistenceId, latch);
}
@Override
final long toSequenceNr, final long max, final Consumer<PersistentRepr> replayCallback) {
LOG.trace("doAsyncReplayMessages for {}: fromSequenceNr: {}, toSequenceNr: {}", persistenceId,
fromSequenceNr,toSequenceNr);
- return Futures.future(new Callable<Void>() {
- @Override
- public Void call() throws Exception {
- CountDownLatch blockLatch = blockReadMessagesLatches.remove(persistenceId);
- if(blockLatch != null) {
- Uninterruptibles.awaitUninterruptibly(blockLatch);
- }
+ return Futures.future(() -> {
+ CountDownLatch blockLatch = BLOCK_READ_MESSAGES_LATCHES.remove(persistenceId);
+ if (blockLatch != null) {
+ Uninterruptibles.awaitUninterruptibly(blockLatch);
+ }
- Map<Long, Object> journal = journals.get(persistenceId);
- if (journal == null) {
- return null;
- }
+ Map<Long, Object> journal = JOURNALS.get(persistenceId);
+ if (journal == null) {
+ return null;
+ }
- synchronized (journal) {
- int count = 0;
- for (Map.Entry<Long,Object> entry : journal.entrySet()) {
- if (++count <= max && entry.getKey() >= fromSequenceNr && entry.getKey() <= toSequenceNr) {
- PersistentRepr persistentMessage =
- new PersistentImpl(deserialize(entry.getValue()), entry.getKey(), persistenceId,
- null, false, null, null);
- replayCallback.accept(persistentMessage);
- }
+ synchronized (journal) {
+ int count = 0;
+ for (Map.Entry<Long,Object> entry : journal.entrySet()) {
+ if (++count <= max && entry.getKey() >= fromSequenceNr && entry.getKey() <= toSequenceNr) {
+ PersistentRepr persistentMessage =
+ new PersistentImpl(deserialize(entry.getValue()), entry.getKey(), persistenceId,
+ null, false, null, null);
+ replayCallback.accept(persistentMessage);
}
}
-
- return null;
}
+
+ return null;
}, context().dispatcher());
}
LOG.trace("doAsyncReadHighestSequenceNr for {}: fromSequenceNr: {}", persistenceId, fromSequenceNr);
// Akka calls this during recovery.
- Map<Long, Object> journal = journals.get(persistenceId);
- if(journal == null) {
+ Map<Long, Object> journal = JOURNALS.get(persistenceId);
+ if (journal == null) {
return Futures.successful(fromSequenceNr);
}
synchronized (journal) {
long highest = -1;
for (Long seqNr : journal.keySet()) {
- if(seqNr.longValue() >= fromSequenceNr && seqNr.longValue() > highest) {
+ if (seqNr.longValue() >= fromSequenceNr && seqNr.longValue() > highest) {
highest = seqNr.longValue();
}
}
@Override
public Future<Iterable<Optional<Exception>>> doAsyncWriteMessages(final Iterable<AtomicWrite> messages) {
- return Futures.future(new Callable<Iterable<Optional<Exception>>>() {
- @Override
- public Iterable<Optional<Exception>> call() throws Exception {
- for (AtomicWrite write : messages) {
- // Copy to array - workaround for eclipse "ambiguous method" errors for toIterator, toIterable etc
- PersistentRepr[] array = new PersistentRepr[write.payload().size()];
- write.payload().copyToArray(array);
- for(PersistentRepr repr: array) {
- LOG.trace("doAsyncWriteMessages: id: {}: seqNr: {}, payload: {}", repr.persistenceId(),
- repr.sequenceNr(), repr.payload());
-
- addEntry(repr.persistenceId(), repr.sequenceNr(), repr.payload());
-
- WriteMessagesComplete complete = writeMessagesComplete.get(repr.persistenceId());
- if(complete != null) {
- if(complete.ofType == null || complete.ofType.equals(repr.payload().getClass())) {
- complete.latch.countDown();
- }
+ return Futures.future(() -> {
+ for (AtomicWrite write : messages) {
+ // Copy to array - workaround for eclipse "ambiguous method" errors for toIterator, toIterable etc
+ PersistentRepr[] array = new PersistentRepr[write.payload().size()];
+ write.payload().copyToArray(array);
+ for (PersistentRepr repr: array) {
+ LOG.trace("doAsyncWriteMessages: id: {}: seqNr: {}, payload: {}", repr.persistenceId(),
+ repr.sequenceNr(), repr.payload());
+
+ addEntry(repr.persistenceId(), repr.sequenceNr(), repr.payload());
+
+ WriteMessagesComplete complete = WRITE_MESSAGES_COMPLETE.get(repr.persistenceId());
+ if (complete != null) {
+ if (complete.ofType == null || complete.ofType.equals(repr.payload().getClass())) {
+ complete.latch.countDown();
}
}
}
-
- return Collections.emptyList();
}
+
+ return Collections.emptyList();
}, context().dispatcher());
}
@Override
public Future<Void> doAsyncDeleteMessagesTo(String persistenceId, long toSequenceNr) {
LOG.trace("doAsyncDeleteMessagesTo: {}", toSequenceNr);
- Map<Long, Object> journal = journals.get(persistenceId);
- if(journal != null) {
+ Map<Long, Object> journal = JOURNALS.get(persistenceId);
+ if (journal != null) {
synchronized (journal) {
Iterator<Long> iter = journal.keySet().iterator();
- while(iter.hasNext()) {
- Long n = iter.next();
- if(n <= toSequenceNr) {
+ while (iter.hasNext()) {
+ Long num = iter.next();
+ if (num <= toSequenceNr) {
iter.remove();
}
}
}
}
- CountDownLatch latch = deleteMessagesCompleteLatches.get(persistenceId);
- if(latch != null) {
+ CountDownLatch latch = DELETE_MESSAGES_COMPLETE_LATCHES.get(persistenceId);
+ if (latch != null) {
latch.countDown();
}
Code Review / controller.git / blobdiff