/**
* Resolves host for REST TCP server using grid configuration.
*
* @param cfg Grid configuration.
* @return REST host.
* @throws IOException If failed to resolve REST host.
*/
private InetAddress resolveRestTcpHost(GridConfiguration cfg) throws IOException {
String host = cfg.getRestTcpHost();
if (host == null) host = cfg.getLocalHost();
return U.resolveLocalHost(host);
}
/**
* Tries to start server with given parameters.
*
* @param hostAddr Host on which server should be bound.
* @param port Port on which server should be bound.
* @param lsnr Server message listener.
* @param parser Server message parser.
* @param sslCtx SSL context in case if SSL is enabled.
* @param cfg Configuration for other parameters.
* @return {@code True} if server successfully started, {@code false} if port is used and server
* was unable to start.
*/
private boolean startTcpServer(
InetAddress hostAddr,
int port,
GridNioServerListener<GridClientMessage> lsnr,
GridNioParser parser,
@Nullable SSLContext sslCtx,
GridConfiguration cfg) {
try {
GridNioFilter codec = new GridNioCodecFilter(parser, log, false);
GridNioFilter[] filters;
if (sslCtx != null) {
GridNioSslFilter sslFilter = new GridNioSslFilter(sslCtx, log);
boolean auth = cfg.isRestTcpSslClientAuth();
sslFilter.wantClientAuth(auth);
sslFilter.needClientAuth(auth);
filters = new GridNioFilter[] {codec, sslFilter};
} else filters = new GridNioFilter[] {codec};
srv =
GridNioServer.<GridClientMessage>builder()
.address(hostAddr)
.port(port)
.listener(lsnr)
.logger(log)
.selectorCount(cfg.getRestTcpSelectorCount())
.gridName(ctx.gridName())
.tcpNoDelay(cfg.isRestTcpNoDelay())
.directBuffer(cfg.isRestTcpDirectBuffer())
.byteOrder(ByteOrder.nativeOrder())
.socketSendBufferSize(cfg.getRestTcpSendBufferSize())
.socketReceiveBufferSize(cfg.getRestTcpReceiveBufferSize())
.sendQueueLimit(cfg.getRestTcpSendQueueLimit())
.filters(filters)
.build();
srv.idleTimeout(cfg.getRestIdleTimeout());
srv.start();
ctx.ports().registerPort(port, GridPortProtocol.TCP, getClass());
return true;
} catch (GridException e) {
if (log.isDebugEnabled())
log.debug(
"Failed to start " + name() + " protocol on port " + port + ": " + e.getMessage());
return false;
}
}
/** {@inheritDoc} */
@SuppressWarnings("BusyWait")
@Override
public void start(final GridRestProtocolHandler hnd) throws GridException {
assert hnd != null;
GridConfiguration cfg = ctx.config();
GridNioServerListener<GridClientMessage> lsnr = new GridTcpRestNioListener(log, hnd);
GridNioParser parser = new GridTcpRestParser(log);
try {
host = resolveRestTcpHost(cfg);
SSLContext sslCtx = null;
if (cfg.isRestTcpSslEnabled()) {
GridSslContextFactory factory = cfg.getRestTcpSslContextFactory();
if (factory == null)
// Thrown SSL exception instead of GridException for writing correct warning message into
// log.
throw new SSLException("SSL is enabled, but SSL context factory is not specified.");
sslCtx = factory.createSslContext();
}
int lastPort = cfg.getRestTcpPort() + cfg.getRestPortRange() - 1;
for (port = cfg.getRestTcpPort(); port <= lastPort; port++) {
if (startTcpServer(host, port, lsnr, parser, sslCtx, cfg)) {
if (log.isInfoEnabled()) log.info(startInfo());
return;
}
}
U.warn(
log,
"Failed to start TCP binary REST server (possibly all ports in range are in use) "
+ "[firstPort="
+ cfg.getRestTcpPort()
+ ", lastPort="
+ lastPort
+ ", host="
+ host
+ ']');
} catch (SSLException e) {
U.warn(
log,
"Failed to start " + name() + " protocol on port " + port + ": " + e.getMessage(),
"Failed to start "
+ name()
+ " protocol on port "
+ port
+ ". Check if SSL context factory is "
+ "properly configured.");
} catch (IOException e) {
U.warn(
log,
"Failed to start " + name() + " protocol on port " + port + ": " + e.getMessage(),
"Failed to start "
+ name()
+ " protocol on port "
+ port
+ ". "
+ "Check restTcpHost configuration property.");
}
}