Esempio n. 1
0
    // Register  protocol and its impl for rpc calls
    void registerProtocolAndImpl(RpcKind rpcKind, Class<?> protocolClass, Object protocolImpl) {
      String protocolName = RPC.getProtocolName(protocolClass);
      long version;

      try {
        version = RPC.getProtocolVersion(protocolClass);
      } catch (Exception ex) {
        LOG.warn("Protocol " + protocolClass + " NOT registered as cannot get protocol version ");
        return;
      }

      getProtocolImplMap(rpcKind)
          .put(
              new ProtoNameVer(protocolName, version),
              new ProtoClassProtoImpl(protocolClass, protocolImpl));
      LOG.debug(
          "RpcKind = "
              + rpcKind
              + " Protocol Name = "
              + protocolName
              + " version="
              + version
              + " ProtocolImpl="
              + protocolImpl.getClass().getName()
              + " protocolClass="
              + protocolClass.getName());
    }
Esempio n. 2
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    /**
     * Construct an RPC server.
     *
     * @param protocolClass - the protocol being registered can be null for compatibility with old
     *     usage (see below for details)
     * @param protocolImpl the protocol impl that will be called
     * @param conf the configuration to use
     * @param bindAddress the address to bind on to listen for connection
     * @param port the port to listen for connections on
     * @param numHandlers the number of method handler threads to run
     * @param verbose whether each call should be logged
     */
    public Server(
        Class<?> protocolClass,
        Object protocolImpl,
        Configuration conf,
        String bindAddress,
        int port,
        int numHandlers,
        int numReaders,
        int queueSizePerHandler,
        boolean verbose,
        SecretManager<? extends TokenIdentifier> secretManager,
        String portRangeConfig)
        throws IOException {
      super(
          bindAddress,
          port,
          null,
          numHandlers,
          numReaders,
          queueSizePerHandler,
          conf,
          classNameBase(protocolImpl.getClass().getName()),
          secretManager,
          portRangeConfig);

      this.verbose = verbose;

      Class<?>[] protocols;
      if (protocolClass == null) { // derive protocol from impl
        /*
         * In order to remain compatible with the old usage where a single
         * target protocolImpl is suppled for all protocol interfaces, and
         * the protocolImpl is derived from the protocolClass(es)
         * we register all interfaces extended by the protocolImpl
         */
        protocols = RPC.getProtocolInterfaces(protocolImpl.getClass());

      } else {
        if (!protocolClass.isAssignableFrom(protocolImpl.getClass())) {
          throw new IOException(
              "protocolClass "
                  + protocolClass
                  + " is not implemented by protocolImpl which is of class "
                  + protocolImpl.getClass());
        }
        // register protocol class and its super interfaces
        registerProtocolAndImpl(RPC.RpcKind.RPC_WRITABLE, protocolClass, protocolImpl);
        protocols = RPC.getProtocolInterfaces(protocolClass);
      }
      for (Class<?> p : protocols) {
        if (!p.equals(VersionedProtocol.class)) {
          registerProtocolAndImpl(RPC.RpcKind.RPC_WRITABLE, p, protocolImpl);
        }
      }
    }
Esempio n. 3
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 public Invocation(Method method, Object[] parameters) {
   this.methodName = method.getName();
   this.parameterClasses = method.getParameterTypes();
   this.parameters = parameters;
   rpcVersion = writableRpcVersion;
   if (method.getDeclaringClass().equals(VersionedProtocol.class)) {
     // VersionedProtocol is exempted from version check.
     clientVersion = 0;
     clientMethodsHash = 0;
   } else {
     this.clientVersion = RPC.getProtocolVersion(method.getDeclaringClass());
     this.clientMethodsHash =
         ProtocolSignature.getFingerprint(method.getDeclaringClass().getMethods());
   }
   this.declaringClassProtocolName = RPC.getProtocolName(method.getDeclaringClass());
 }
Esempio n. 4
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 private void initProtocolMetaInfo(Configuration conf) {
   RPC.setProtocolEngine(conf, ProtocolMetaInfoPB.class, ProtobufRpcEngine.class);
   ProtocolMetaInfoServerSideTranslatorPB xlator =
       new ProtocolMetaInfoServerSideTranslatorPB(this);
   BlockingService protocolInfoBlockingService =
       ProtocolInfoService.newReflectiveBlockingService(xlator);
   addProtocol(
       RpcKind.RPC_PROTOCOL_BUFFER, ProtocolMetaInfoPB.class, protocolInfoBlockingService);
 }