Package io.grpc.stub

Class MetadataUtils.MetadataAttachingServerInterceptor

java.lang.Object

io.grpc.stub.MetadataUtils.MetadataAttachingServerInterceptor

All Implemented Interfaces:

ServerInterceptor

Enclosing class:

MetadataUtils

private static final class MetadataUtils.MetadataAttachingServerInterceptor
extends Object
implements ServerInterceptor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) final class	MetadataUtils.MetadataAttachingServerInterceptor.MetadataAttachingServerCall<ReqT,RespT>

Field Summary

Fields

Modifier and Type	Field	Description
private final Metadata	extras

Constructor Summary

Constructors

Constructor	Description
MetadataAttachingServerInterceptor(Metadata extras)

Method Summary

Modifier and Type	Method	Description
<ReqT, RespT> ServerCall.Listener<ReqT>	interceptCall(ServerCall<ReqT,RespT> call, Metadata headers, ServerCallHandler<ReqT,RespT> next)	Intercept ServerCall dispatch by the next ServerCallHandler.

Methods inherited from class java.lang.Object

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

Field Details

extras

private final Metadata extras

Constructor Details

MetadataAttachingServerInterceptor

MetadataAttachingServerInterceptor(Metadata extras)

Method Details

interceptCall

public <ReqT,
RespT> ServerCall.Listener<ReqT> interceptCall(ServerCall<ReqT,RespT> call,
 Metadata headers,
 ServerCallHandler<ReqT,RespT> next)

Description copied from interface: ServerInterceptor

Intercept ServerCall dispatch by the next ServerCallHandler. General semantics of ServerCallHandler.startCall(io.grpc.ServerCall<RequestT, ResponseT>, io.grpc.Metadata) apply and the returned ServerCall.Listener must not be null.

If the implementation throws an exception, call will be closed with an error. Implementations must not throw an exception if they started processing that may use call on another thread.

Specified by:

interceptCall in interface ServerInterceptor

Parameters:

call - object to receive response messages

headers - which can contain extra call metadata from ClientCall.start(io.grpc.ClientCall.Listener<RespT>, io.grpc.Metadata), e.g. authentication credentials.

next - next processor in the interceptor chain

Returns:

listener for processing incoming messages for call, never null.