forked from grpc/grpc-java
/
ForwardingLoadBalancerHelper.java
139 lines (118 loc) · 3.89 KB
/
ForwardingLoadBalancerHelper.java
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/*
* Copyright 2018 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.util;
import com.google.common.base.MoreObjects;
import io.grpc.Attributes;
import io.grpc.ChannelLogger;
import io.grpc.ConnectivityState;
import io.grpc.EquivalentAddressGroup;
import io.grpc.ExperimentalApi;
import io.grpc.LoadBalancer.CreateSubchannelArgs;
import io.grpc.LoadBalancer.Subchannel;
import io.grpc.LoadBalancer.SubchannelPicker;
import io.grpc.LoadBalancer;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import io.grpc.NameResolver;
import io.grpc.NameResolverRegistry;
import io.grpc.SynchronizationContext;
import java.util.List;
import java.util.concurrent.ScheduledExecutorService;
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/1771")
public abstract class ForwardingLoadBalancerHelper extends LoadBalancer.Helper {
/**
* Returns the underlying helper.
*/
protected abstract LoadBalancer.Helper delegate();
@Deprecated
@Override
public Subchannel createSubchannel(List<EquivalentAddressGroup> addrs, Attributes attrs) {
return delegate().createSubchannel(addrs, attrs);
}
@Override
public Subchannel createSubchannel(CreateSubchannelArgs args) {
return delegate().createSubchannel(args);
}
@Deprecated
@Override
public void updateSubchannelAddresses(
Subchannel subchannel, List<EquivalentAddressGroup> addrs) {
delegate().updateSubchannelAddresses(subchannel, addrs);
}
@Override
public ManagedChannel createOobChannel(EquivalentAddressGroup eag, String authority) {
return delegate().createOobChannel(eag, authority);
}
@Override
public void updateOobChannelAddresses(ManagedChannel channel, EquivalentAddressGroup eag) {
delegate().updateOobChannelAddresses(channel, eag);
}
@Override
public ManagedChannelBuilder<?> createResolvingOobChannelBuilder(String target) {
return delegate().createResolvingOobChannelBuilder(target);
}
@Override
public ManagedChannel createResolvingOobChannel(String target) {
return delegate().createResolvingOobChannel(target);
}
@Override
public void updateBalancingState(
ConnectivityState newState, SubchannelPicker newPicker) {
delegate().updateBalancingState(newState, newPicker);
}
@Override
public void refreshNameResolution() {
delegate().refreshNameResolution();
}
@Override
@Deprecated
public void runSerialized(Runnable task) {
delegate().runSerialized(task);
}
@Deprecated
@Override
public NameResolver.Factory getNameResolverFactory() {
return delegate().getNameResolverFactory();
}
@Override
public String getAuthority() {
return delegate().getAuthority();
}
@Override
public SynchronizationContext getSynchronizationContext() {
return delegate().getSynchronizationContext();
}
@Override
public ScheduledExecutorService getScheduledExecutorService() {
return delegate().getScheduledExecutorService();
}
@Override
public ChannelLogger getChannelLogger() {
return delegate().getChannelLogger();
}
@Override
public NameResolver.Args getNameResolverArgs() {
return delegate().getNameResolverArgs();
}
@Override
public NameResolverRegistry getNameResolverRegistry() {
return delegate().getNameResolverRegistry();
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this).add("delegate", delegate()).toString();
}
}