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/model/host/InetAddressAdapter.java

@@ -0,0 +1,69 @@
+// 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.model.host;
+
+import com.google.common.net.InetAddresses;
+
+import java.net.Inet6Address;
+import java.net.InetAddress;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlValue;
+import javax.xml.bind.annotation.adapters.CollapsedStringAdapter;
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+/**
+ * Used by JAXB to convert InetAddress objects to and from AddrType objects, which are the
+ * intermediate representations of IP addresses in EPP host commands.
+ */
+public final class InetAddressAdapter
+    extends XmlAdapter<InetAddressAdapter.AddressShim, InetAddress> {
+
+  /**
+   * Intermediate representation of an IP address on a host object. This object only exists
+   * temporarily until it is converted by JAXB to and from an InetAddress via this adapter.
+   */
+  static class AddressShim {
+    @XmlValue
+    @XmlJavaTypeAdapter(CollapsedStringAdapter.class)
+    String ipAddress;
+
+    @XmlAttribute(name = "ip")
+    @XmlJavaTypeAdapter(CollapsedStringAdapter.class)
+    String ipVersion;
+  }
+
+  @Override
+  public AddressShim marshal(InetAddress inetAddress) {
+    AddressShim shim = new AddressShim();
+    shim.ipAddress = InetAddresses.toAddrString(inetAddress);
+    shim.ipVersion = (inetAddress instanceof Inet6Address) ? "v6" : "v4";
+    return shim;
+  }
+
+  @Override
+  public InetAddress unmarshal(AddressShim shim) throws IpVersionMismatchException {
+    InetAddress inetAddress = InetAddresses.forString(shim.ipAddress);
+    // Enforce that "v6" is used iff the address is ipv6. (For ipv4, "v4" is allowed to be missing.)
+    if (inetAddress instanceof Inet6Address != "v6".equals(shim.ipVersion)) {
+      throw new IpVersionMismatchException();
+    }
+    return inetAddress;
+  }
+
+  /** Exception for when the specified type of an address (v4/v6) doesn't match its actual type. */
+  public static class IpVersionMismatchException extends Exception {}
+}