io.grpc.HandlerRegistry Maven / Gradle / Ivy
/*
* Copyright 2014, gRPC Authors All rights reserved.
*
* 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.grpc;
import java.util.Collections;
import java.util.List;
import javax.annotation.Nullable;
import javax.annotation.concurrent.ThreadSafe;
/**
* Registry of services and their methods used by servers to dispatching incoming calls.
*/
@ThreadSafe
public abstract class HandlerRegistry {
/**
* Returns the {@link ServerServiceDefinition}s provided by the registry, or an empty list if not
* supported by the implementation.
*/
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/2222")
public List getServices() {
return Collections.emptyList();
}
/**
* Lookup a {@link ServerMethodDefinition} by its fully-qualified name.
*
* @param methodName to lookup {@link ServerMethodDefinition} for.
* @param authority the authority for the desired method (to do virtual hosting). If {@code null}
* the first matching method will be returned.
* @return the resolved method or {@code null} if no method for that name exists.
*/
@Nullable
public abstract ServerMethodDefinition lookupMethod(
String methodName, @Nullable String authority);
/**
* Lookup a {@link ServerMethodDefinition} by its fully-qualified name.
*
* @param methodName to lookup {@link ServerMethodDefinition} for.
* @return the resolved method or {@code null} if no method for that name exists.
*/
@Nullable
public final ServerMethodDefinition lookupMethod(String methodName) {
return lookupMethod(methodName, null);
}
}