Import code from internal repository to git

java/com/google/domain/registry/model/registrar/RegistrarAddress.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.model.registrar;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.domain.registry.util.CollectionUtils.forceEmptyToNull;
+
+import com.google.domain.registry.model.eppcommon.Address;
+
+import com.googlecode.objectify.annotation.Embed;
+
+/**
+ * Registrar Address
+ * <p>
+ * This class is embedded inside a {@link Registrar} object to hold its address. The fields are all
+ * defined in parent class {@link Address} so that it can share it with other similar address
+ * classes.
+ */
+@Embed
+public class RegistrarAddress extends Address {
+
+  /** Builder for {@link RegistrarAddress}. */
+  public static class Builder extends Address.Builder<RegistrarAddress> {
+    @Override
+    public RegistrarAddress build() {
+      RegistrarAddress instance = getInstance();
+      checkNotNull(forceEmptyToNull(instance.getStreet()), "Missing street");
+      checkNotNull(instance.getCity(), "Missing city");
+      checkNotNull(instance.getCountryCode(), "Missing country code");
+      return super.build();
+    }
+  }
+}