mv com/google/domain/registry google/registry

This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.

java/google/registry/whois/DomainOrHostLookupCommand.java

@@ -0,0 +1,70 @@
+// Copyright 2016 The Domain Registry 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 com.google.domain.registry.whois;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.domain.registry.model.EppResourceUtils.loadByUniqueId;
+import static com.google.domain.registry.model.registry.Registries.findTldForName;
+import static com.google.domain.registry.model.registry.Registries.getTlds;
+import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Optional;
+import com.google.common.net.InternetDomainName;
+import com.google.domain.registry.model.EppResource;
+import com.google.domain.registry.util.TypeUtils.TypeInstantiator;
+
+import org.joda.time.DateTime;
+
+import javax.annotation.Nullable;
+
+/** Represents a WHOIS lookup on a domain name (i.e. SLD) or a nameserver. */
+abstract class DomainOrHostLookupCommand<T extends EppResource> implements WhoisCommand {
+
+  @VisibleForTesting
+  final InternetDomainName domainOrHostName;
+
+  private final String errorPrefix;
+
+  private Optional<InternetDomainName> tld;
+
+  DomainOrHostLookupCommand(
+      InternetDomainName domainName, @Nullable InternetDomainName tld, String errorPrefix) {
+    this.errorPrefix = errorPrefix;
+    this.domainOrHostName = checkNotNull(domainName, "domainOrHostName");
+    this.tld = Optional.fromNullable(tld);
+  }
+
+  @Override
+  public final WhoisResponse executeQuery(final DateTime now) throws WhoisException {
+    if (!tld.isPresent()) {
+      tld = findTldForName(domainOrHostName);
+    }
+    // Google Policy: Do not return records under TLDs for which we're not authoritative.
+    if (tld.isPresent() && getTlds().contains(tld.get().toString())) {
+      T domainOrHost = loadByUniqueId(
+          new TypeInstantiator<T>(getClass()){}.getExactType(),
+          domainOrHostName.toString(),
+          now);
+      if (domainOrHost != null) {
+        return getSuccessResponse(domainOrHost, now);
+      }
+    }
+    throw new WhoisException(now, SC_NOT_FOUND, errorPrefix + " not found.");
+  }
+
+  /** Renders a response record, provided its successfully retrieved datastore entity. */
+  abstract WhoisResponse getSuccessResponse(T domainOrHost, DateTime now);
+}