google-nomulus/java/google/registry/whois/DomainOrHostLookupCommand.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

55 lines
2.3 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.whois;
import static com.google.common.base.Preconditions.checkNotNull;
import static google.registry.model.registry.Registries.findTldForName;
import static google.registry.model.registry.Registries.getTlds;
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.net.InternetDomainName;
import java.util.Optional;
import org.joda.time.DateTime;
/** Represents a WHOIS lookup on a domain name (i.e. SLD) or a nameserver. */
public abstract class DomainOrHostLookupCommand implements WhoisCommand {
@VisibleForTesting final InternetDomainName domainOrHostName;
private final String errorPrefix;
DomainOrHostLookupCommand(InternetDomainName domainName, String errorPrefix) {
this.errorPrefix = errorPrefix;
this.domainOrHostName = checkNotNull(domainName, "domainOrHostName");
}
@Override
public final WhoisResponse executeQuery(final DateTime now) throws WhoisException {
Optional<InternetDomainName> tld = findTldForName(domainOrHostName);
// Google Registry Policy: Do not return records under TLDs for which we're not authoritative.
if (tld.isPresent() && getTlds().contains(tld.get().toString())) {
final Optional<WhoisResponse> response = getResponse(domainOrHostName, now);
if (response.isPresent()) {
return response.get();
}
}
throw new WhoisException(now, SC_NOT_FOUND, errorPrefix + " not found.");
}
/** Renders a response record, provided its successfully retrieved Datastore entity. */
protected abstract Optional<WhoisResponse> getResponse(
InternetDomainName domainName, DateTime now);
}