public void run() throws IOException {
final FutureImpl<String> completeFuture = SafeFutureImpl.create();
// Build HTTP client filter chain
FilterChainBuilder clientFilterChainBuilder = FilterChainBuilder.newInstance();
// Add transport filter
clientFilterChainBuilder.add(new TransportFilter());
// Add HttpClientFilter, which transforms Buffer <-> HttpContent
clientFilterChainBuilder.add(new HttpClientFilter());
// Add ClientFilter
clientFilterChainBuilder.add(new ClientFilter(completeFuture));
// Initialize Transport
final TCPNIOTransport transport = TCPNIOTransportBuilder.newInstance().build();
// Set filterchain as a Transport Processor
transport.setFilterChain(clientFilterChainBuilder.build());
try {
// start the transport
transport.start();
Connection connection = null;
// Connecting to a remote Web server
Future<Connection> connectFuture = transport.connect(HOST, PORT);
try {
// Wait until the client connect operation will be completed
// Once connection has been established, the POST will
// be sent to the server.
connection = connectFuture.get(10, TimeUnit.SECONDS);
// Wait no longer than 30 seconds for the response from the
// server to be complete.
String result = completeFuture.get(30, TimeUnit.SECONDS);
// Display the echoed content
System.out.println("\nEchoed POST Data: " + result + '\n');
} catch (Exception e) {
if (connection == null) {
LOGGER.log(Level.WARNING, "Connection failed. Server is not listening.");
} else {
LOGGER.log(Level.WARNING, "Unexpected error communicating with the server.");
}
} finally {
// Close the client connection
if (connection != null) {
connection.closeSilently();
}
}
} finally {
// shutdownNow the transport
transport.shutdownNow();
}
}
public static void main(String[] args) throws Exception {
Connection connection = null;
// Construct the client filter chain
final FilterChainBuilder puFilterChainBuilder =
FilterChainBuilder.stateless()
// Add TransportFilter
.add(new TransportFilter())
// Add ADD-service message parser/serializer
.add(new AddClientMessageFilter())
// Add Result reporter Filter
.add(new ResultFilter());
// Construct TCPNIOTransport
final TCPNIOTransport transport = TCPNIOTransportBuilder.newInstance().build();
transport.setProcessor(puFilterChainBuilder.build());
try {
// Start
transport.start();
// Create the client connection
final Future<Connection> connectFuture = transport.connect("localhost", PUServer.PORT);
connection = connectFuture.get(10, TimeUnit.SECONDS);
LOGGER.info("Enter 2 numbers separated by space (<value1> <value2>) end press <enter>.");
LOGGER.info("Type q and enter to exit.");
// Read user input and communicate the ADD-service
String line;
BufferedReader reader =
new BufferedReader(new InputStreamReader(System.in, Charsets.ASCII_CHARSET));
while ((line = reader.readLine()) != null) {
if ("q".equals(line)) {
break;
}
// Parse user input
final int value1;
final int value2;
try {
final String[] values = line.split(" ");
value1 = Integer.parseInt(values[0].trim());
value2 = Integer.parseInt(values[1].trim());
} catch (Exception e) {
LOGGER.warning("Bad format, repeat pls");
continue;
}
// send the request to ADD-service
final GrizzlyFuture<WriteResult> writeFuture =
connection.write(new AddRequestMessage(value1, value2));
final WriteResult result = writeFuture.get(10, TimeUnit.SECONDS);
assert result != null;
}
} finally {
// Close the client connection
if (connection != null) {
connection.closeSilently();
}
// Shutdown the transport
transport.shutdownNow();
}
}
public void testBlockingRead() throws Exception {
final String[] clientMsgs = {"XXXXX", "Hello", "from", "client"};
Connection connection = null;
int messageNum = 3;
final BlockingQueue<String> intermResultQueue = DataStructures.getLTQInstance(String.class);
final PUFilter puFilter = new PUFilter();
FilterChain subProtocolChain =
puFilter
.getPUFilterChainBuilder()
.add(new MergeFilter(clientMsgs.length, intermResultQueue))
.add(new EchoFilter())
.build();
puFilter.register(new SimpleProtocolFinder(clientMsgs[0]), subProtocolChain);
FilterChainBuilder filterChainBuilder = FilterChainBuilder.newInstance();
filterChainBuilder.add(new TransportFilter());
filterChainBuilder.add(new StringFilter());
filterChainBuilder.add(puFilter);
final TCPNIOTransport transport = TCPNIOTransportBuilder.newInstance().build();
transport.setFilterChain(filterChainBuilder.build());
try {
transport.bind(PORT);
transport.start();
final BlockingQueue<String> resultQueue = DataStructures.getLTQInstance(String.class);
Future<Connection> future = transport.connect("localhost", PORT);
connection = future.get(10, TimeUnit.SECONDS);
assertTrue(connection != null);
FilterChainBuilder clientFilterChainBuilder = FilterChainBuilder.newInstance();
clientFilterChainBuilder.add(new TransportFilter());
clientFilterChainBuilder.add(new StringFilter());
clientFilterChainBuilder.add(
new BaseFilter() {
@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
resultQueue.add((String) ctx.getMessage());
return ctx.getStopAction();
}
});
final FilterChain clientFilterChain = clientFilterChainBuilder.build();
connection.setFilterChain(clientFilterChain);
for (int i = 0; i < messageNum; i++) {
String clientMessage = "";
for (int j = 0; j < clientMsgs.length; j++) {
String msg = clientMsgs[j] + "-" + i;
Future<WriteResult> writeFuture = connection.write(msg);
assertTrue("Write timeout loop: " + i, writeFuture.get(10, TimeUnit.SECONDS) != null);
final String srvInterm = intermResultQueue.poll(10, TimeUnit.SECONDS);
assertEquals("Unexpected interm. response (" + i + ", " + j + ")", msg, srvInterm);
clientMessage += msg;
}
final String message = resultQueue.poll(10, TimeUnit.SECONDS);
assertEquals("Unexpected response (" + i + ")", clientMessage, message);
}
} finally {
if (connection != null) {
connection.closeSilently();
}
transport.shutdownNow();
}
}
public void testStandalone() throws Exception {
TCPNIOTransport transport = TCPNIOTransportBuilder.newInstance().build();
transport.getAsyncQueueIO().getWriter().setMaxPendingBytesPerConnection(-1);
int messageSize = 166434;
Connection connection = null;
StreamReader reader = null;
StreamWriter writer = null;
try {
// Enable standalone mode
transport.configureStandalone(true);
// Start listen on specific port
final TCPNIOServerConnection serverConnection = transport.bind(PORT);
// Start transport
transport.start();
// Start echo server thread
final Thread serverThread = startEchoServerThread(transport, serverConnection, messageSize);
// Connect to the server
Future<Connection> connectFuture = transport.connect("localhost", PORT);
connection = connectFuture.get(10, TimeUnit.SECONDS);
assertTrue(connectFuture.isDone());
// fill out buffer
byte[] buffer = new byte[messageSize];
for (int i = 0; i < messageSize; i++) {
buffer[i] = (byte) (i % 128);
}
// write buffer
writer = StandaloneProcessor.INSTANCE.getStreamWriter(connection);
writer.writeByteArray(buffer);
writer.flush();
reader = StandaloneProcessor.INSTANCE.getStreamReader(connection);
// prepare receiving buffer
byte[] receiveBuffer = new byte[messageSize];
Future readFuture = reader.notifyAvailable(messageSize);
readFuture.get(20, TimeUnit.SECONDS);
// Read the response.
reader.readByteArray(receiveBuffer);
assertTrue(readFuture.isDone());
// Check the echo result
assertTrue(Arrays.equals(buffer, receiveBuffer));
serverThread.join(10 * 1000);
} finally {
if (connection != null) {
connection.closeSilently();
}
transport.shutdownNow();
}
}
public void testBlockingReadError() throws Exception {
final String[] clientMsgs = {"ZZZZZ", "Hello", "from", "client"};
Connection connection = null;
final BlockingQueue intermResultQueue = DataStructures.getLTQInstance();
final PUFilter puFilter = new PUFilter();
FilterChain subProtocolChain =
puFilter
.getPUFilterChainBuilder()
.add(new MergeFilter(clientMsgs.length, intermResultQueue))
.add(new EchoFilter())
.build();
puFilter.register(new SimpleProtocolFinder(clientMsgs[0]), subProtocolChain);
FilterChainBuilder filterChainBuilder = FilterChainBuilder.newInstance();
filterChainBuilder.add(new TransportFilter());
filterChainBuilder.add(new StringFilter());
filterChainBuilder.add(puFilter);
TCPNIOTransport transport = TCPNIOTransportBuilder.newInstance().build();
transport.setFilterChain(filterChainBuilder.build());
try {
transport.bind(PORT);
transport.start();
Future<Connection> future = transport.connect("localhost", PORT);
connection = future.get(10, TimeUnit.SECONDS);
assertTrue(connection != null);
FilterChainBuilder clientFilterChainBuilder = FilterChainBuilder.newInstance();
clientFilterChainBuilder.add(new TransportFilter());
clientFilterChainBuilder.add(new StringFilter());
final FilterChain clientFilterChain = clientFilterChainBuilder.build();
connection.setFilterChain(clientFilterChain);
String msg = clientMsgs[0];
Future<WriteResult> writeFuture = connection.write(msg);
assertTrue("Write timeout", writeFuture.get(10, TimeUnit.SECONDS) != null);
final String srvInterm = (String) intermResultQueue.poll(10, TimeUnit.SECONDS);
assertEquals("Unexpected interm. response", msg, srvInterm);
connection.closeSilently();
connection = null;
final Exception e = (Exception) intermResultQueue.poll(10, TimeUnit.SECONDS);
assertTrue(
"Unexpected response. Exception: " + e.getClass() + ": " + e.getMessage(),
e instanceof IOException);
} finally {
if (connection != null) {
connection.closeSilently();
}
transport.shutdownNow();
}
}