SetHead: Move static Input to separate file in extension API

Change-Id: I64d259dacfa8e70f10b4689e144d7ee31ab91ee3

gerrit-extension-api/src/main/java/com/google/gerrit/extensions/common/HeadInput.java

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import com.google.gerrit.extensions.restapi.DefaultInput;
+
+public class HeadInput {
+  @DefaultInput public String ref;
+}

gerrit-server/src/main/java/com/google/gerrit/server/project/SetHead.java

@@ -15,11 +15,11 @@
 package com.google.gerrit.server.project;
 
 import com.google.common.base.Strings;
+import com.google.gerrit.extensions.common.HeadInput;
 import com.google.gerrit.extensions.events.HeadUpdatedListener;
 import com.google.gerrit.extensions.registration.DynamicSet;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
-import com.google.gerrit.extensions.restapi.DefaultInput;
 import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
 import com.google.gerrit.extensions.restapi.RestModifyView;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
@@ -31,7 +31,6 @@ import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.permissions.PermissionBackend;
 import com.google.gerrit.server.permissions.PermissionBackendException;
 import com.google.gerrit.server.permissions.RefPermission;
-import com.google.gerrit.server.project.SetHead.Input;
 import com.google.inject.Inject;
 import com.google.inject.Provider;
 import com.google.inject.Singleton;
@@ -46,13 +45,9 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @Singleton
-public class SetHead implements RestModifyView<ProjectResource, Input> {
+public class SetHead implements RestModifyView<ProjectResource, HeadInput> {
   private static final Logger log = LoggerFactory.getLogger(SetHead.class);
 
-  public static class Input {
-    @DefaultInput public String ref;
-  }
-
   private final GitRepositoryManager repoManager;
   private final Provider<IdentifiedUser> identifiedUser;
   private final DynamicSet<HeadUpdatedListener> headUpdatedListeners;
@@ -71,7 +66,7 @@ public class SetHead implements RestModifyView<ProjectResource, Input> {
   }
 
   @Override
-  public String apply(ProjectResource rsrc, Input input)
+  public String apply(ProjectResource rsrc, HeadInput input)
       throws AuthException, ResourceNotFoundException, BadRequestException,
           UnprocessableEntityException, IOException, PermissionBackendException {
     if (input == null || Strings.isNullOrEmpty(input.ref)) {

gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/SetHeadCommand.java

@@ -14,11 +14,11 @@
 
 package com.google.gerrit.sshd.commands;
 
+import com.google.gerrit.extensions.common.HeadInput;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
 import com.google.gerrit.server.project.ProjectResource;
 import com.google.gerrit.server.project.ProjectState;
 import com.google.gerrit.server.project.SetHead;
-import com.google.gerrit.server.project.SetHead.Input;
 import com.google.gerrit.sshd.CommandMetaData;
 import com.google.gerrit.sshd.SshCommand;
 import com.google.inject.Inject;
@@ -43,7 +43,7 @@ public class SetHeadCommand extends SshCommand {
 
   @Override
   protected void run() throws Exception {
-    Input input = new SetHead.Input();
+    HeadInput input = new HeadInput();
     input.ref = newHead;
     try {
       setHead.apply(new ProjectResource(project, user), input);