Introduce InputWithMessage

InputWithMessage is similar to InputWithCommitMessage but is intended
for messages other than commit messages, i.e. a message added to the
change review history.

We can't simply use the existing InputWithCommitMessage for this since
the message field is named 'commitMessage' and this would be a breaking
API change.

Change-Id: I5383dfc5c2b08e50675daec4a1a07b538d90ae15

java/com/google/gerrit/extensions/common/InputWithMessage.java

@@ -0,0 +1,34 @@
+// Copyright (C) 2019 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.common.Nullable;
+
+/**
+ * A generic input with a message only.
+ *
+ * <p>See also {@link InputWithCommitMessage}.
+ */
+public class InputWithMessage {
+  @Nullable public String message;
+
+  public InputWithMessage() {
+    this(null);
+  }
+
+  public InputWithMessage(@Nullable String message) {
+    this.message = message;
+  }
+}

java/com/google/gerrit/server/api/changes/ChangeApiImpl.java

@@ -48,6 +48,7 @@ import com.google.gerrit.extensions.common.ChangeMessageInfo;
 import com.google.gerrit.extensions.common.CommentInfo;
 import com.google.gerrit.extensions.common.CommitMessageInput;
 import com.google.gerrit.extensions.common.Input;
+import com.google.gerrit.extensions.common.InputWithMessage;
 import com.google.gerrit.extensions.common.MergePatchSetInput;
 import com.google.gerrit.extensions.common.PureRevertInfo;
 import com.google.gerrit.extensions.common.RevertSubmissionInfo;
@@ -63,7 +64,6 @@ import com.google.gerrit.server.StarredChangesUtil;
 import com.google.gerrit.server.StarredChangesUtil.IllegalLabelException;
 import com.google.gerrit.server.change.ChangeMessageResource;
 import com.google.gerrit.server.change.ChangeResource;
-import com.google.gerrit.server.change.SetPrivateOp;
 import com.google.gerrit.server.change.WorkInProgressOp;
 import com.google.gerrit.server.restapi.change.Abandon;
 import com.google.gerrit.server.restapi.change.ChangeIncludedIn;
@@ -324,7 +324,7 @@ class ChangeApiImpl implements ChangeApi {
   @Override
   public void setPrivate(boolean value, @Nullable String message) throws RestApiException {
     try {
-      SetPrivateOp.Input input = new SetPrivateOp.Input(message);
+      InputWithMessage input = new InputWithMessage(message);
       if (value) {
         postPrivate.apply(change, input);
       } else {

java/com/google/gerrit/server/change/SetPrivateOp.java

@@ -19,6 +19,7 @@ import com.google.gerrit.common.Nullable;
 import com.google.gerrit.entities.Change;
 import com.google.gerrit.entities.ChangeMessage;
 import com.google.gerrit.entities.PatchSet;
+import com.google.gerrit.extensions.common.InputWithMessage;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.server.ChangeMessagesUtil;
@@ -34,25 +35,15 @@ import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
 
 public class SetPrivateOp implements BatchUpdateOp {
-  public static class Input {
-    String message;
-
-    public Input() {}
-
-    public Input(String message) {
-      this.message = message;
-    }
-  }
-
   public interface Factory {
-    SetPrivateOp create(boolean isPrivate, @Nullable Input input);
+    SetPrivateOp create(boolean isPrivate, @Nullable InputWithMessage input);
   }
 
   private final PrivateStateChanged privateStateChanged;
   private final PatchSetUtil psUtil;
   private final ChangeMessagesUtil cmUtil;
   private final boolean isPrivate;
-  @Nullable private final Input input;
+  @Nullable private final InputWithMessage input;
 
   private Change change;
   private PatchSet ps;
@@ -64,7 +55,7 @@ public class SetPrivateOp implements BatchUpdateOp {
       PatchSetUtil psUtil,
       ChangeMessagesUtil cmUtil,
       @Assisted boolean isPrivate,
-      @Assisted @Nullable Input input) {
+      @Assisted @Nullable InputWithMessage input) {
     this.privateStateChanged = privateStateChanged;
     this.psUtil = psUtil;
     this.cmUtil = cmUtil;

java/com/google/gerrit/server/change/WorkInProgressOp.java

@@ -21,6 +21,7 @@ import com.google.gerrit.entities.Change;
 import com.google.gerrit.entities.ChangeMessage;
 import com.google.gerrit.entities.PatchSet;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
+import com.google.gerrit.extensions.common.InputWithMessage;
 import com.google.gerrit.server.ChangeMessagesUtil;
 import com.google.gerrit.server.PatchSetUtil;
 import com.google.gerrit.server.extensions.events.WorkInProgressStateChanged;
@@ -34,15 +35,15 @@ import com.google.inject.assistedinject.Assisted;
 
 /* Set work in progress or ready for review state on a change */
 public class WorkInProgressOp implements BatchUpdateOp {
-  public static class Input {
-    @Nullable public String message;
-
+  public static class Input extends InputWithMessage {
     @Nullable public NotifyHandling notify;
 
-    public Input() {}
+    public Input() {
+      this(null);
+    }
 
-    public Input(String message) {
-      this.message = message;
+    public Input(@Nullable String message) {
+      super(message);
     }
   }
 

java/com/google/gerrit/server/restapi/change/DeletePrivate.java

@@ -17,6 +17,7 @@ package com.google.gerrit.server.restapi.change;
 import static com.google.gerrit.extensions.conditions.BooleanCondition.or;
 
 import com.google.gerrit.common.Nullable;
+import com.google.gerrit.extensions.common.InputWithMessage;
 import com.google.gerrit.extensions.conditions.BooleanCondition;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
@@ -36,7 +37,7 @@ import com.google.inject.Singleton;
 
 @Singleton
 public class DeletePrivate
-    extends RetryingRestModifyView<ChangeResource, SetPrivateOp.Input, String> {
+    extends RetryingRestModifyView<ChangeResource, InputWithMessage, String> {
   private final PermissionBackend permissionBackend;
   private final SetPrivateOp.Factory setPrivateOpFactory;
 
@@ -52,7 +53,7 @@ public class DeletePrivate
 
   @Override
   protected Response<String> applyImpl(
-      BatchUpdate.Factory updateFactory, ChangeResource rsrc, @Nullable SetPrivateOp.Input input)
+      BatchUpdate.Factory updateFactory, ChangeResource rsrc, @Nullable InputWithMessage input)
       throws RestApiException, UpdateException {
     if (!canDeletePrivate(rsrc).value()) {
       throw new AuthException("not allowed to unmark private");

java/com/google/gerrit/server/restapi/change/PostPrivate.java

@@ -18,6 +18,7 @@ import static com.google.gerrit.extensions.conditions.BooleanCondition.and;
 import static com.google.gerrit.extensions.conditions.BooleanCondition.or;
 
 import com.google.gerrit.entities.Change;
+import com.google.gerrit.extensions.common.InputWithMessage;
 import com.google.gerrit.extensions.conditions.BooleanCondition;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
@@ -39,7 +40,7 @@ import com.google.inject.Singleton;
 import org.eclipse.jgit.lib.Config;
 
 @Singleton
-public class PostPrivate extends RetryingRestModifyView<ChangeResource, SetPrivateOp.Input, String>
+public class PostPrivate extends RetryingRestModifyView<ChangeResource, InputWithMessage, String>
     implements UiAction<ChangeResource> {
   private final PermissionBackend permissionBackend;
   private final SetPrivateOp.Factory setPrivateOpFactory;
@@ -59,7 +60,7 @@ public class PostPrivate extends RetryingRestModifyView<ChangeResource, SetPriva
 
   @Override
   public Response<String> applyImpl(
-      BatchUpdate.Factory updateFactory, ChangeResource rsrc, SetPrivateOp.Input input)
+      BatchUpdate.Factory updateFactory, ChangeResource rsrc, InputWithMessage input)
       throws RestApiException, UpdateException {
     if (disablePrivateChanges) {
       throw new MethodNotAllowedException("private changes are disabled");