Import code from internal repository to git

java/com/google/domain/registry/whois/Whois.java

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+// Copyright 2016 Google Inc. 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 com.google.domain.registry.util.Clock;
+
+import org.joda.time.DateTime;
+
+import java.io.IOException;
+import java.io.StringReader;
+
+import javax.inject.Inject;
+
+/** High-level WHOIS API for other packages. */
+public final class Whois {
+
+  private final Clock clock;
+
+  @Inject
+  public Whois(Clock clock) {
+    this.clock = clock;
+  }
+
+  /**
+   * Performs a WHOIS lookup on a plaintext query string.
+   *
+   * @throws WhoisException if the record is not found or the query is invalid
+   */
+  public WhoisResponse lookup(String query) throws WhoisException {
+    DateTime now = clock.nowUtc();
+    try {
+      return new WhoisReader(new StringReader(query), now)
+          .readCommand()
+          .executeQuery(now);
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+  }
+}