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Replace inner classes with lambdas.

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This commit is contained in:
akwizgran
2021-06-10 17:04:15 +01:00
parent 77a3199aac
commit 847650f280
1 changed files with 92 additions and 148 deletions
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240
bramble-core/src/main/java/org/briarproject/bramble/sync/SimplexOutgoingSession.java
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@@ -99,9 +99,9 @@ class SimplexOutgoingSession implements SyncSession, EventListener {
// Send our supported protocol versions
recordWriter.writeVersions(new Versions(SUPPORTED_VERSIONS));
// Start a query for each type of record
dbExecutor.execute(new GenerateAck());
if (eager) dbExecutor.execute(new LoadUnackedMessageIds());
else dbExecutor.execute(new GenerateBatch());
dbExecutor.execute(this::generateAck);
if (eager) dbExecutor.execute(this::loadUnackedMessageIds);
else dbExecutor.execute(this::generateBatch);
// Write records until interrupted or no more records to write
try {
while (!interrupted) {
@@ -146,166 +146,110 @@ class SimplexOutgoingSession implements SyncSession, EventListener {
}
}
private class LoadUnackedMessageIds implements Runnable {
@DatabaseExecutor
@Override
public void run() {
if (interrupted) return;
try {
Map<MessageId, Integer> ids =
db.transactionWithResult(true, txn ->
db.getUnackedMessagesToSend(txn, contactId));
if (LOG.isLoggable(INFO)) {
LOG.info(ids.size() + " unacked messages to send");
}
if (ids.isEmpty()) decrementOutstandingQueries();
else dbExecutor.execute(new GenerateEagerBatch(ids));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
@DatabaseExecutor
private void loadUnackedMessageIds() {
if (interrupted) return;
try {
Map<MessageId, Integer> ids = db.transactionWithResult(true, txn ->
db.getUnackedMessagesToSend(txn, contactId));
if (LOG.isLoggable(INFO)) {
LOG.info(ids.size() + " unacked messages to send");
}
}
}
private class GenerateEagerBatch implements Runnable {
private final Map<MessageId, Integer> ids;
private GenerateEagerBatch(Map<MessageId, Integer> ids) {
this.ids = ids;
}
@DatabaseExecutor
@Override
public void run() {
if (interrupted) return;
// Take some message IDs from `ids` to form a batch
Collection<MessageId> batchIds = new ArrayList<>();
long totalLength = 0;
Iterator<Entry<MessageId, Integer>> it =
ids.entrySet().iterator();
while (it.hasNext()) {
// Check whether the next message will fit in the batch
Entry<MessageId, Integer> e = it.next();
int length = e.getValue();
if (totalLength + length > MAX_RECORD_PAYLOAD_BYTES) break;
// Add the message to the batch
it.remove();
batchIds.add(e.getKey());
totalLength += length;
}
if (batchIds.isEmpty()) throw new AssertionError();
try {
Collection<Message> batch =
db.transactionWithResult(false, txn ->
db.generateBatch(txn, contactId, batchIds,
maxLatency));
writerTasks.add(new WriteEagerBatch(batch, ids));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
}
}
private class WriteEagerBatch implements ThrowingRunnable<IOException> {
private final Collection<Message> batch;
private final Map<MessageId, Integer> ids;
private WriteEagerBatch(Collection<Message> batch,
Map<MessageId, Integer> ids) {
this.batch = batch;
this.ids = ids;
}
@IoExecutor
@Override
public void run() throws IOException {
if (interrupted) return;
for (Message m : batch) recordWriter.writeMessage(m);
LOG.info("Sent eager batch");
if (ids.isEmpty()) decrementOutstandingQueries();
else dbExecutor.execute(new GenerateEagerBatch(ids));
else dbExecutor.execute(() -> generateEagerBatch(ids));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
}
private class GenerateAck implements Runnable {
@DatabaseExecutor
@Override
public void run() {
if (interrupted) return;
try {
Ack a = db.transactionWithNullableResult(false, txn ->
db.generateAck(txn, contactId, MAX_MESSAGE_IDS));
if (LOG.isLoggable(INFO))
LOG.info("Generated ack: " + (a != null));
if (a == null) decrementOutstandingQueries();
else writerTasks.add(new WriteAck(a));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
@DatabaseExecutor
private void generateEagerBatch(Map<MessageId, Integer> ids) {
if (interrupted) return;
// Take some message IDs from `ids` to form a batch
Collection<MessageId> batchIds = new ArrayList<>();
long totalLength = 0;
Iterator<Entry<MessageId, Integer>> it = ids.entrySet().iterator();
while (it.hasNext()) {
// Check whether the next message will fit in the batch
Entry<MessageId, Integer> e = it.next();
int length = e.getValue();
if (totalLength + length > MAX_RECORD_PAYLOAD_BYTES) break;
// Add the message to the batch
it.remove();
batchIds.add(e.getKey());
totalLength += length;
}
if (batchIds.isEmpty()) throw new AssertionError();
try {
Collection<Message> batch =
db.transactionWithResult(false, txn ->
db.generateBatch(txn, contactId, batchIds,
maxLatency));
writerTasks.add(() -> writeEagerBatch(batch, ids));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
}
private class WriteAck implements ThrowingRunnable<IOException> {
@IoExecutor
private void writeEagerBatch(Collection<Message> batch,
Map<MessageId, Integer> ids) throws IOException {
if (interrupted) return;
for (Message m : batch) recordWriter.writeMessage(m);
LOG.info("Sent eager batch");
if (ids.isEmpty()) decrementOutstandingQueries();
else dbExecutor.execute(() -> generateEagerBatch(ids));
}
private final Ack ack;
private WriteAck(Ack ack) {
this.ack = ack;
}
@IoExecutor
@Override
public void run() throws IOException {
if (interrupted) return;
recordWriter.writeAck(ack);
LOG.info("Sent ack");
dbExecutor.execute(new GenerateAck());
@DatabaseExecutor
private void generateAck() {
if (interrupted) return;
try {
Ack a = db.transactionWithNullableResult(false, txn ->
db.generateAck(txn, contactId, MAX_MESSAGE_IDS));
if (LOG.isLoggable(INFO))
LOG.info("Generated ack: " + (a != null));
if (a == null) decrementOutstandingQueries();
else writerTasks.add(() -> writeAck(a));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
}
private class GenerateBatch implements Runnable {
@IoExecutor
private void writeAck(Ack ack) throws IOException {
if (interrupted) return;
recordWriter.writeAck(ack);
LOG.info("Sent ack");
dbExecutor.execute(this::generateAck);
}
@DatabaseExecutor
@Override
public void run() {
if (interrupted) return;
try {
Collection<Message> b =
db.transactionWithNullableResult(false, txn ->
db.generateBatch(txn, contactId,
MAX_RECORD_PAYLOAD_BYTES, maxLatency));
if (LOG.isLoggable(INFO))
LOG.info("Generated batch: " + (b != null));
if (b == null) decrementOutstandingQueries();
else writerTasks.add(new WriteBatch(b));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
@DatabaseExecutor
private void generateBatch() {
if (interrupted) return;
try {
Collection<Message> b =
db.transactionWithNullableResult(false, txn ->
db.generateBatch(txn, contactId,
MAX_RECORD_PAYLOAD_BYTES, maxLatency));
if (LOG.isLoggable(INFO))
LOG.info("Generated batch: " + (b != null));
if (b == null) decrementOutstandingQueries();
else writerTasks.add(() -> writeBatch(b));
} catch (DbException e) {
logException(LOG, WARNING, e);
interrupt();
}
}
private class WriteBatch implements ThrowingRunnable<IOException> {
private final Collection<Message> batch;
private WriteBatch(Collection<Message> batch) {
this.batch = batch;
}
@IoExecutor
@Override
public void run() throws IOException {
if (interrupted) return;
for (Message m : batch) recordWriter.writeMessage(m);
LOG.info("Sent batch");
dbExecutor.execute(new GenerateBatch());
}
@IoExecutor
private void writeBatch(Collection<Message> batch) throws IOException {
if (interrupted) return;
for (Message m : batch) recordWriter.writeMessage(m);
LOG.info("Sent batch");
dbExecutor.execute(this::generateBatch);
}
}