google-nomulus/java/google/registry/rdap/RdapUtils.java
mcilwain c0f8da0c6e Switch from Guava Optionals to Java 8 Optionals
This was a surprisingly involved change. Some of the difficulties included
java.util.Optional purposely not being Serializable (so I had to move a
few Optionals in mapreduce classes to @Nullable) and having to add the Truth
Java8 extension library for assertion support.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171863777
2017-10-24 16:53:47 -04:00

33 lines
1.2 KiB
Java

// Copyright 2017 The Nomulus 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 google.registry.rdap;
import com.google.common.collect.Streams;
import google.registry.model.registrar.Registrar;
import java.util.Objects;
import java.util.Optional;
/** Utility functions for RDAP. */
public final class RdapUtils {
private RdapUtils() {}
/** Looks up a registrar by its IANA identifier. */
static Optional<Registrar> getRegistrarByIanaIdentifier(final long ianaIdentifier) {
return Streams.stream(Registrar.loadAllCached())
.filter(registrar -> Objects.equals(ianaIdentifier, registrar.getIanaIdentifier()))
.findFirst();
}
}