Package io.grpc

Class ServerInterceptors

java.lang.Object

io.grpc.ServerInterceptors

public final class ServerInterceptors
extends Object

Utility methods for working with ServerInterceptors.

Method Summary

Modifier and Type	Method	Description
static ServerServiceDefinition	intercept(BindableService bindableService, ServerInterceptor... interceptors)
static ServerServiceDefinition	intercept(BindableService bindableService, List<? extends ServerInterceptor> interceptors)
static ServerServiceDefinition	intercept(ServerServiceDefinition serviceDef, ServerInterceptor... interceptors)	Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler.
static ServerServiceDefinition	intercept(ServerServiceDefinition serviceDef, List<? extends ServerInterceptor> interceptors)	Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler.
static ServerServiceDefinition	interceptForward(BindableService bindableService, ServerInterceptor... interceptors)
static ServerServiceDefinition	interceptForward(BindableService bindableService, List<? extends ServerInterceptor> interceptors)
static ServerServiceDefinition	interceptForward(ServerServiceDefinition serviceDef, ServerInterceptor... interceptors)	Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler.
static ServerServiceDefinition	interceptForward(ServerServiceDefinition serviceDef, List<? extends ServerInterceptor> interceptors)	Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler.
static ServerServiceDefinition	useInputStreamMessages(ServerServiceDefinition serviceDef)	Create a new ServerServiceDefinition whose MethodDescriptor serializes to and from InputStream for all methods.
static <ReqT, RespT> ServerServiceDefinition	useMarshalledMessages(ServerServiceDefinition serviceDef, MethodDescriptor.Marshaller<ReqT> requestMarshaller, MethodDescriptor.Marshaller<RespT> responseMarshaller)	Create a new ServerServiceDefinition with MethodDescriptor for deserializing requests and separate MethodDescriptor for serializing responses.
static <T> ServerServiceDefinition	useMarshalledMessages(ServerServiceDefinition serviceDef, MethodDescriptor.Marshaller<T> marshaller)	Create a new ServerServiceDefinition whose MethodDescriptor serializes to and from T for all methods.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

interceptForward

public static ServerServiceDefinition interceptForward(ServerServiceDefinition serviceDef,
 ServerInterceptor... interceptors)

Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler. The first interceptor will have its ServerInterceptor.interceptCall(io.grpc.ServerCall<ReqT, RespT>, io.grpc.Metadata, io.grpc.ServerCallHandler<ReqT, RespT>) called first.

Parameters:

serviceDef - the service definition for which to intercept all its methods.

interceptors - array of interceptors to apply to the service.

Returns:

a wrapped version of serviceDef with the interceptors applied.

interceptForward

public static ServerServiceDefinition interceptForward(BindableService bindableService,
 ServerInterceptor... interceptors)

interceptForward

public static ServerServiceDefinition interceptForward(ServerServiceDefinition serviceDef,
 List<? extends ServerInterceptor> interceptors)

Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler. The first interceptor will have its ServerInterceptor.interceptCall(io.grpc.ServerCall<ReqT, RespT>, io.grpc.Metadata, io.grpc.ServerCallHandler<ReqT, RespT>) called first.

Parameters:

serviceDef - the service definition for which to intercept all its methods.

interceptors - list of interceptors to apply to the service.

Returns:

a wrapped version of serviceDef with the interceptors applied.

interceptForward

public static ServerServiceDefinition interceptForward(BindableService bindableService,
 List<? extends ServerInterceptor> interceptors)

intercept

public static ServerServiceDefinition intercept(ServerServiceDefinition serviceDef,
 ServerInterceptor... interceptors)

Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler. The last interceptor will have its ServerInterceptor.interceptCall(io.grpc.ServerCall<ReqT, RespT>, io.grpc.Metadata, io.grpc.ServerCallHandler<ReqT, RespT>) called first.

Parameters:

serviceDef - the service definition for which to intercept all its methods.

interceptors - array of interceptors to apply to the service.

Returns:

a wrapped version of serviceDef with the interceptors applied.

intercept

public static ServerServiceDefinition intercept(BindableService bindableService,
 ServerInterceptor... interceptors)

intercept

public static ServerServiceDefinition intercept(ServerServiceDefinition serviceDef,
 List<? extends ServerInterceptor> interceptors)

Create a new ServerServiceDefinition whose ServerCallHandlers will call interceptors before calling the pre-existing ServerCallHandler. The last interceptor will have its ServerInterceptor.interceptCall(io.grpc.ServerCall<ReqT, RespT>, io.grpc.Metadata, io.grpc.ServerCallHandler<ReqT, RespT>) called first.

Parameters:

serviceDef - the service definition for which to intercept all its methods.

interceptors - list of interceptors to apply to the service.

Returns:

a wrapped version of serviceDef with the interceptors applied.

intercept

public static ServerServiceDefinition intercept(BindableService bindableService,
 List<? extends ServerInterceptor> interceptors)

useInputStreamMessages

@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1712")
public static ServerServiceDefinition useInputStreamMessages(ServerServiceDefinition serviceDef)

Create a new ServerServiceDefinition whose MethodDescriptor serializes to and from InputStream for all methods. The InputStream is guaranteed return true for markSupported(). The ServerCallHandler created will automatically convert back to the original types for request and response before calling the existing ServerCallHandler. Calling this method combined with the intercept methods will allow the developer to choose whether to intercept messages of InputStream, or the modeled types of their application.

Parameters:

serviceDef - the service definition to convert messages to InputStream

Returns:

a wrapped version of serviceDef with the InputStream conversion applied.

useMarshalledMessages

@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1712")
public static <T> ServerServiceDefinition useMarshalledMessages(ServerServiceDefinition serviceDef,
 MethodDescriptor.Marshaller<T> marshaller)

Create a new ServerServiceDefinition whose MethodDescriptor serializes to and from T for all methods. The ServerCallHandler created will automatically convert back to the original types for request and response before calling the existing ServerCallHandler. Calling this method combined with the intercept methods will allow the developer to choose whether to intercept messages of T, or the modeled types of their application. This can also be chained to allow for interceptors to handle messages as multiple different T types within the chain if the added cost of serialization is not a concern.

Parameters:

serviceDef - the service definition to convert messages to T

Returns:

a wrapped version of serviceDef with the T conversion applied.

useMarshalledMessages

@ExperimentalApi("https://github.com/grpc/grpc-java/issues/9870")
public static <ReqT,
RespT> ServerServiceDefinition useMarshalledMessages(ServerServiceDefinition serviceDef,
 MethodDescriptor.Marshaller<ReqT> requestMarshaller,
 MethodDescriptor.Marshaller<RespT> responseMarshaller)

Create a new ServerServiceDefinition with MethodDescriptor for deserializing requests and separate MethodDescriptor for serializing responses. The ServerCallHandler created will automatically convert back to the original types for request and response before calling the existing ServerCallHandler. Calling this method combined with the intercept methods will allow the developer to choose whether to intercept messages of ReqT/RespT, or the modeled types of their application. This can also be chained to allow for interceptors to handle messages as multiple different ReqT/RespT types within the chain if the added cost of serialization is not a concern.

Type Parameters:

ReqT - the request payload type

RespT - the response payload type.

Parameters:

serviceDef - the service definition to add request and response marshallers to.

requestMarshaller - request marshaller

responseMarshaller - response marshaller

Returns:

a wrapped version of serviceDef with the ReqT and RespT conversion applied.