org.lightningj.lnd.wrapper

Class MacaroonClientInterceptor

java.lang.Object

org.lightningj.lnd.wrapper.MacaroonClientInterceptor

All Implemented Interfaces:

io.grpc.ClientInterceptor

public class MacaroonClientInterceptor
extends java.lang.Object
implements io.grpc.ClientInterceptor

Macaroon Client Call Interceptor used to inject current macaroon into each GRPC call.

See Also:

Created by Philip Vendil on 2018-02-03.

Constructor Summary

Constructors

Constructor and Description
MacaroonClientInterceptor(MacaroonContext macaroonContext)

Method Summary

Modifier and Type	Method and Description
<ReqT,RespT> io.grpc.ClientCall<ReqT,RespT>	interceptCall(io.grpc.MethodDescriptor<ReqT,RespT> method, io.grpc.CallOptions callOptions, io.grpc.Channel next) Intercept ClientCall creation by the next Channel.

Methods inherited from class java.lang.Object

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

Constructor Detail

MacaroonClientInterceptor

public MacaroonClientInterceptor(MacaroonContext macaroonContext)

Method Detail

interceptCall

public <ReqT,RespT> io.grpc.ClientCall<ReqT,RespT> interceptCall(io.grpc.MethodDescriptor<ReqT,RespT> method,
                                                                 io.grpc.CallOptions callOptions,
                                                                 io.grpc.Channel next)

Intercept ClientCall creation by the next Channel.

Many variations of interception are possible. Complex implementations may return a wrapper around the result of next.newCall(), whereas a simpler implementation may just modify the header metadata prior to returning the result of next.newCall().

next.newCall() must not be called under a different Context other than the current Context. The outcome of such usage is undefined and may cause memory leak due to unbounded chain of Contexts.

Specified by:

interceptCall in interface io.grpc.ClientInterceptor

Parameters:

method - the remote method to be called.

callOptions - the runtime options to be applied to this call.

next - the channel which is being intercepted.

Returns:

the call object for the remote operation, never null.