/**
* closes and only logs the exception at debug
*
* @param key the SelectionKey
* @param e the Exception that caused the issue
*/
private void quietClose(@NotNull final SelectionKey key, @NotNull final Exception e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
closeEarlyAndQuietly(key.channel());
}
@Override
void process() throws IOException {
try {
final Details serverDetails = new Details(serverInetSocketAddress, localIdentifier);
connectorBySocket.put(serverInetSocketAddress, new ServerConnector(serverDetails));
for (InetSocketAddress client : endpoints) {
final Details clientDetails = new Details(client, localIdentifier);
connectorBySocket.put(client, new ClientConnector(clientDetails));
}
for (AbstractConnector connector : connectorBySocket.values()) {
connector.connect();
}
while (selector.isOpen()) {
registerPendingRegistrations();
final int nSelectedKeys = selector.select(selectorTimeout);
// its less resource intensive to set this less frequently and use an approximation
final long approxTime = System.currentTimeMillis();
checkThrottleInterval();
// check that we have sent and received heartbeats
heartBeatMonitor(approxTime);
// set the OP_WRITE when data is ready to send
opWriteUpdater.applyUpdates();
if (nSelectedKeys == 0) continue; // go back and check pendingRegistrations
final Set<SelectionKey> selectionKeys = selector.selectedKeys();
for (final SelectionKey key : selectionKeys) {
try {
if (!key.isValid()) continue;
if (key.isAcceptable()) onAccept(key);
if (key.isConnectable()) onConnect(key);
if (key.isReadable()) onRead(key, approxTime);
if (key.isWritable()) onWrite(key, approxTime);
} catch (CancelledKeyException e) {
quietClose(key, e);
} catch (ClosedSelectorException e) {
quietClose(key, e);
} catch (IOException e) {
quietClose(key, e);
} catch (InterruptedException e) {
quietClose(key, e);
} catch (Exception e) {
LOG.info("", e);
closeEarlyAndQuietly(key.channel());
}
}
selectionKeys.clear();
}
} catch (CancelledKeyException e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
} catch (ClosedSelectorException e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
} catch (ClosedChannelException e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
} catch (ConnectException e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
} catch (Exception e) {
LOG.error("", e);
} finally {
if (selector != null)
try {
selector.close();
} catch (IOException e) {
if (LOG.isDebugEnabled()) LOG.debug("", e);
}
close();
}
}