Add extra flow logic hooks for info and update

This CL adds the hooks necessary to implement TLD-specific flow info and update flow logic. Usage of the hooks follows in a separate CL.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=130108832

javatests/google/registry/model/domain/TestExtraLogicManager.java

@@ -0,0 +1,63 @@
+// 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 google.registry.model.domain;
+
+import com.google.common.base.Splitter;
+import com.google.common.collect.Iterables;
+import google.registry.flows.EppException;
+import google.registry.flows.EppException.UnimplementedExtensionException;
+import google.registry.flows.domain.RegistryExtraFlowLogic;
+import google.registry.model.domain.flags.FlagsUpdateCommandExtension;
+import google.registry.model.eppinput.EppInput;
+import java.util.List;
+import org.joda.time.DateTime;
+
+/**
+ * Fake extra logic manager which synthesizes information from the domain name for testing purposes.
+ */
+public class TestExtraLogicManager implements RegistryExtraFlowLogic {
+
+  @Override
+  public List<String> getFlags(
+      DomainResource domainResource, String clientIdentifier, DateTime asOfDate) {
+    // Take the part before the period, split by dashes, and treat each part after the first as
+    // a flag.
+    List<String> components =
+        Splitter.on('-').splitToList(
+            Iterables.getFirst(
+                Splitter.on('.').split(domainResource.getFullyQualifiedDomainName()), ""));
+    return components.subList(1, components.size());
+  }
+
+  @Override
+  public void performAdditionalDomainUpdateLogic(
+      DomainResource domainResource,
+      String clientIdentifier,
+      DateTime asOfDate,
+      EppInput eppInput) throws EppException {
+    FlagsUpdateCommandExtension updateFlags =
+        eppInput.getSingleExtension(FlagsUpdateCommandExtension.class);
+    if (updateFlags == null) {
+      return;
+    }
+    // Throw this exception as a signal to the test that we got this far.
+    throw new UnimplementedExtensionException();
+  }
+
+  @Override
+  public void commitAdditionalDomainUpdates() {
+    return;
+  }
+}