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GoogleCloudToProdNameResolverProvider.java
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GoogleCloudToProdNameResolverProvider.java
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/*
* Copyright 2021 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.googleapis;
import com.google.common.base.Preconditions;
import io.grpc.Internal;
import io.grpc.NameResolver;
import io.grpc.NameResolver.Args;
import io.grpc.NameResolverProvider;
import io.grpc.internal.GrpcUtil;
import io.grpc.xds.InternalSharedXdsClientPoolProvider;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.net.URI;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
/**
* A provider for {@link GoogleCloudToProdNameResolver}.
*/
@Internal
public final class GoogleCloudToProdNameResolverProvider extends NameResolverProvider {
private static final String SCHEME = "google-c2p";
private final String scheme;
public GoogleCloudToProdNameResolverProvider() {
this(SCHEME);
}
GoogleCloudToProdNameResolverProvider(String scheme) {
this.scheme = Preconditions.checkNotNull(scheme, "scheme");
}
@Override
public NameResolver newNameResolver(URI targetUri, Args args) {
if (scheme.equals(targetUri.getScheme())) {
return new GoogleCloudToProdNameResolver(
targetUri, args, GrpcUtil.SHARED_CHANNEL_EXECUTOR,
new SharedXdsClientPoolProviderBootstrapSetter());
}
return null;
}
@Override
public String getDefaultScheme() {
return scheme;
}
@Override
protected boolean isAvailable() {
return true;
}
@Override
protected int priority() {
return 4;
}
@Override
public Collection<Class<? extends SocketAddress>> getProducedSocketAddressTypes() {
return Collections.singleton(InetSocketAddress.class);
}
private static final class SharedXdsClientPoolProviderBootstrapSetter
implements GoogleCloudToProdNameResolver.BootstrapSetter {
@Override
public void setBootstrap(Map<String, ?> bootstrap) {
InternalSharedXdsClientPoolProvider.setDefaultProviderBootstrapOverride(bootstrap);
}
}
}