io.grpc.netty.UdsNettyChannelProvider Maven / Gradle / Ivy
/*
* Copyright 2015 The gRPC 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.grpc.netty;
import com.google.common.base.Preconditions;
import io.grpc.ChannelCredentials;
import io.grpc.Internal;
import io.grpc.ManagedChannelProvider;
import io.grpc.internal.SharedResourcePool;
import io.netty.channel.unix.DomainSocketAddress;
import java.net.SocketAddress;
import java.util.Collection;
import java.util.Collections;
/** Provider for {@link NettyChannelBuilder} instances for UDS channels. */
@Internal
public final class UdsNettyChannelProvider extends ManagedChannelProvider {
@Override
public boolean isAvailable() {
return (Utils.EPOLL_DOMAIN_CLIENT_CHANNEL_TYPE != null);
}
@Override
public int priority() {
return 3;
}
@Override
public NettyChannelBuilder builderForAddress(String name, int port) {
throw new AssertionError("NettyChannelProvider shadows this implementation");
}
@Override
public NettyChannelBuilder builderForTarget(String target) {
throw new AssertionError("NettyChannelProvider shadows this implementation");
}
@Override
public NewChannelBuilderResult newChannelBuilder(String target, ChannelCredentials creds) {
Preconditions.checkState(isAvailable());
NewChannelBuilderResult result = new NettyChannelProvider().newChannelBuilder(target, creds);
if (result.getChannelBuilder() != null) {
((NettyChannelBuilder) result.getChannelBuilder())
.eventLoopGroupPool(SharedResourcePool.forResource(Utils.DEFAULT_WORKER_EVENT_LOOP_GROUP))
.channelType(Utils.EPOLL_DOMAIN_CLIENT_CHANNEL_TYPE, DomainSocketAddress.class);
}
return result;
}
@Override
protected Collection> getSupportedSocketAddressTypes() {
return Collections.singleton(DomainSocketAddress.class);
}
}