public void start() throws Exception {
log.info("Starting Gravity...");
synchronized (this) {
if (!started) {
adapterFactory = new AdapterFactory(this);
internalStart();
serverChannel = new ServerChannel(this, ServerChannel.class.getName(), null, null);
if (gravityConfig.isUseUdp()) {
ServiceLoader<UdpReceiverFactory> loader = ServiceLoader.load(UdpReceiverFactory.class);
Iterator<UdpReceiverFactory> factories = loader.iterator();
if (factories.hasNext()) {
udpReceiverFactory = factories.next();
udpReceiverFactory.setPort(gravityConfig.getUdpPort());
udpReceiverFactory.setNio(gravityConfig.isUdpNio());
udpReceiverFactory.setConnected(gravityConfig.isUdpConnected());
udpReceiverFactory.setSendBufferSize(gravityConfig.getUdpSendBufferSize());
udpReceiverFactory.start();
} else log.warn("UDP receiver factory not found");
}
started = true;
}
}
log.info("Gravity successfully started.");
}
/*
* (non-Javadoc)
* @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
if (log.isInfoEnabled())
try {
GraniteContext context =
HttpGraniteContext.createThreadIntance(
graniteConfig, servicesConfig, getServletContext(), request, response);
if (context == null) throw new ServletException("GraniteContext not Initialized!!");
// AMFContextImpl amf = (AMFContextImpl) context.getAMFContext();
// Phase1 Deserializing AMF0 request
if (log.isInfoEnabled())
log.info(">>>>> Deserializing AMF0 request from..." + request.getRequestURI());
AMF0Deserializer deserializer =
new AMF0Deserializer(new DataInputStream(request.getInputStream()));
AMF0Message amf0Request = deserializer.getAMFMessage();
// Phase2 Processing AMF0 request
if (log.isInfoEnabled()) log.info(">>>>> Processing AMF0 request: " + amf0Request);
AMF0Message amf0Response = AMF0MessageProcessor.process(amf0Request);
if (log.isInfoEnabled()) log.info("<<<<< Returning AMF0 response: " + amf0Response);
// Phase3 Send back response to the client
response.setContentType(AMF0Message.CONTENT_TYPE);
AMF0Serializer serializer =
new AMF0Serializer(new DataOutputStream(response.getOutputStream()));
serializer.serializeMessage(amf0Response);
if (log.isInfoEnabled()) log.info("...End of Processing AMF Request......");
} catch (Exception e) {
log.error(e, "Could not handle AMF request");
throw new ServletException(e);
}
}
public void stop(boolean now) throws Exception {
log.info("Stopping Gravity (now=%s)...", now);
synchronized (this) {
if (adapterFactory != null) {
try {
adapterFactory.stopAll();
} catch (Exception e) {
log.error(e, "Error while stopping adapter factory");
}
adapterFactory = null;
}
if (serverChannel != null) {
try {
removeChannel(serverChannel.getId(), false);
} catch (Exception e) {
log.error(e, "Error while removing server channel: %s", serverChannel);
}
serverChannel = null;
}
if (channelsTimer != null) {
try {
channelsTimer.cancel();
} catch (Exception e) {
log.error(e, "Error while cancelling channels timer");
}
channelsTimer = null;
}
if (gravityPool != null) {
try {
if (now) gravityPool.shutdownNow();
else gravityPool.shutdown();
} catch (Exception e) {
log.error(e, "Error while stopping thread pool");
}
gravityPool = null;
}
if (udpReceiverFactory != null) {
try {
udpReceiverFactory.stop();
} catch (Exception e) {
log.error(e, "Error while stopping udp receiver factory");
}
udpReceiverFactory = null;
}
started = false;
}
log.info("Gravity sucessfully stopped.");
}
private Message handleSecurityMessage(CommandMessage message) {
GraniteConfig config = GraniteContext.getCurrentInstance().getGraniteConfig();
Message response = null;
if (!config.hasSecurityService())
log.warn(
"Ignored security operation (no security settings in granite-config.xml): %s", message);
else if (!config.getSecurityService().acceptsContext())
log.info(
"Ignored security operation (security service does not handle this kind of granite context)",
message);
else {
SecurityService securityService = config.getSecurityService();
try {
if (message.isLoginOperation())
securityService.login(
message.getBody(), (String) message.getHeader(Message.CREDENTIALS_CHARSET_HEADER));
else securityService.logout();
} catch (Exception e) {
if (e instanceof SecurityServiceException)
log.debug(e, "Could not process security operation: %s", message);
else log.error(e, "Could not process security operation: %s", message);
response = new ErrorMessage(message, e, true);
}
}
if (response == null) {
response = new AcknowledgeMessage(message, true);
// For SDK 2.0.1_Hotfix2.
if (message.isSecurityOperation()) response.setBody("success");
}
return response;
}
public void contextInitialized(ServletContextEvent event) {
log.info("Loading JMF shared context");
ServletContext servletContext = event.getServletContext();
List<ExtendedObjectCodec> extendedObjectCodecs = loadExtendedObjectCodecs(servletContext);
List<String> defaultStoredStrings = loadDefaultStoredStrings(servletContext);
SharedContext sharedContext =
new DefaultSharedContext(
new DefaultCodecRegistry(extendedObjectCodecs), null, defaultStoredStrings);
servletContext.setAttribute(SHARED_CONTEXT_KEY, sharedContext);
SharedContext dumpSharedContext =
new DefaultSharedContext(new DefaultCodecRegistry(), null, defaultStoredStrings);
servletContext.setAttribute(DUMP_SHARED_CONTEXT_KEY, dumpSharedContext);
log.info("JMF shared context loaded");
}
protected List<ExtendedObjectCodec> detectExtendedObjectCodecs() {
log.info("Auto detecting extended object codec...");
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
for (String factoryName : CODEC_EXTENSION_FACTORY_NAMES) {
try {
CodecExtensionFactory factory =
(CodecExtensionFactory) classLoader.loadClass(factoryName).newInstance();
List<ExtendedObjectCodec> extendedObjectCodecs = factory.getCodecs();
log.info("Using %s: %s", factoryName, extendedObjectCodecs);
return extendedObjectCodecs;
} catch (Throwable t) {
log.debug(t, "Could not load factory: %s", factoryName);
}
}
log.info("No extended object codec detected");
return Collections.emptyList();
}
private void dumpBytes(String label, byte[] bytes) {
StringBuilder hexSb = new StringBuilder();
StringBuilder charSb = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
int b = bytes[i] & 0xFF;
if (hexSb.length() > 0) {
hexSb.append(' ');
charSb.append(' ');
}
hexSb.append(HEXS.charAt(b >> 4)).append(HEXS.charAt(b & 0x0F));
if (b >= 0x20 && b <= 0x7e) charSb.append(' ').append((char) b);
else charSb.append("##");
}
log.info("[RAW %s] {\n%s\n%s\n}", label.toUpperCase(), hexSb.toString(), charSb.toString());
if (dumpDir != null) {
File file =
new File(
dumpDir.getPath()
+ File.separator
+ label
+ "_"
+ System.currentTimeMillis()
+ ".amf");
for (int i = 1; i < 100 && file.exists(); i++)
file = new File(file.getAbsolutePath() + "." + i);
OutputStream os = null;
try {
os = new FileOutputStream(file);
os.write(bytes);
} catch (Exception e) {
log.error(e, "Could not write dump file: %s", file);
} finally {
if (os != null)
try {
os.close();
} catch (Exception e) {
}
}
}
}
protected void internalStart() {
gravityPool = new GravityPool(gravityConfig);
channelsTimer = new Timer();
if (graniteConfig.isRegisterMBeans()) {
try {
ObjectName name =
new ObjectName(
"org.graniteds:type=Gravity,context=" + graniteConfig.getMBeanContextName());
log.info("Registering MBean: %s", name);
OpenMBean mBean = OpenMBean.createMBean(this);
MBeanServerLocator.getInstance().register(mBean, name, true);
} catch (Exception e) {
log.error(
e,
"Could not register Gravity MBean for context: %s",
graniteConfig.getMBeanContextName());
}
}
}
protected List<ExtendedObjectCodec> loadExtendedObjectCodecs(ServletContext servletContext) {
String extendedObjectCodecsParam =
servletContext.getInitParameter(EXTENDED_OBJECT_CODECS_PARAM);
if (extendedObjectCodecsParam == null) return detectExtendedObjectCodecs();
ClassLoader classLoader = getClass().getClassLoader();
List<ExtendedObjectCodec> extendedObjectCodecs = new ArrayList<ExtendedObjectCodec>();
for (String className : extendedObjectCodecsParam.trim().split("\\s*\\,\\s*")) {
if (className.length() == 0) continue;
log.info("Loading JMF extended object codec: %s", className);
try {
@SuppressWarnings("unchecked")
Class<? extends ExtendedObjectCodec> cls =
(Class<? extends ExtendedObjectCodec>) classLoader.loadClass(className);
extendedObjectCodecs.add(cls.getDeclaredConstructor().newInstance());
} catch (Throwable t) {
log.warn(t, "Could not load JMF codec: %s", className);
}
}
return extendedObjectCodecs;
}
