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/*
* Copyright 2024 The Dapr Authors
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
limitations under the License.
*/
package io.dapr.internal.grpc;
import io.dapr.internal.grpc.interceptors.DaprApiTokenInterceptor;
import io.dapr.internal.grpc.interceptors.DaprAppIdInterceptor;
import io.dapr.internal.grpc.interceptors.DaprMetadataInterceptor;
import io.dapr.internal.grpc.interceptors.DaprTimeoutInterceptor;
import io.dapr.internal.grpc.interceptors.DaprTracingInterceptor;
import io.dapr.internal.resiliency.TimeoutPolicy;
import io.grpc.Metadata;
import io.grpc.stub.AbstractStub;
import reactor.util.context.ContextView;
import java.util.function.Consumer;
/**
* Class to be used as part of your service's client stub interceptor.
* Usage: myClientStub = DaprClientGrpcInterceptors.intercept(myClientStub);
*/
public class DaprClientGrpcInterceptors {
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param appId the appId to be invoked
* @param client gRPC client
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(final String appId, final T client) {
return intercept(appId, client, null, null, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param client gRPC client
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(final T client) {
return intercept(null, client, null, null, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param appId the appId to be invoked
* @param client gRPC client
* @param timeoutPolicy timeout policy for gRPC call
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(
final String appId, final T client, final TimeoutPolicy timeoutPolicy) {
return intercept(appId, client, timeoutPolicy, null, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param client gRPC client
* @param timeoutPolicy timeout policy for gRPC call
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(final T client, final TimeoutPolicy timeoutPolicy) {
return intercept(null, client, timeoutPolicy, null, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param appId the appId to be invoked
* @param client gRPC client
* @param context Reactor context for tracing
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(
final String appId, final T client, final ContextView context) {
return intercept(appId, client, null, context, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param client gRPC client
* @param context Reactor context for tracing
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(final T client, final ContextView context) {
return intercept(null, client, null, context, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param client gRPC client
* @param timeoutPolicy timeout policy for gRPC call
* @param context Reactor context for tracing
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(
final T client,
final TimeoutPolicy timeoutPolicy,
final ContextView context) {
return intercept(null, client, timeoutPolicy, context, null);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param client gRPC client
* @param timeoutPolicy timeout policy for gRPC call
* @param context Reactor context for tracing
* @param metadataConsumer Consumer of the gRPC metadata
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(
final T client,
final TimeoutPolicy timeoutPolicy,
final ContextView context,
final Consumer metadataConsumer) {
return intercept(null, client, timeoutPolicy, context, metadataConsumer);
}
/**
* Adds all Dapr interceptors to a gRPC async stub.
* @param appId the appId to be invoked
* @param client gRPC client
* @param timeoutPolicy timeout policy for gRPC call
* @param context Reactor context for tracing
* @param metadataConsumer Consumer of the gRPC metadata
* @param async client type
* @return async client instance with interceptors
*/
public static > T intercept(
final String appId,
final T client,
final TimeoutPolicy timeoutPolicy,
final ContextView context,
final Consumer metadataConsumer) {
if (client == null) {
throw new IllegalArgumentException("client cannot be null");
}
return client.withInterceptors(
new DaprAppIdInterceptor(appId),
new DaprApiTokenInterceptor(),
new DaprTimeoutInterceptor(timeoutPolicy),
new DaprTracingInterceptor(context),
new DaprMetadataInterceptor(metadataConsumer));
}
}
