SetEditPreferences: Return info from REST handler

This is needed to harmonize the API across different user preferences:

* diff
* edit
* general

Change-Id: I8126fc217a442c551fba1fcfcecdb6c07d1b2d64

Documentation/rest-api-accounts.txt

@@ -1402,11 +1402,28 @@ link:#edit-preferences-info[EditPreferencesInfo] entity.
   }
 ----
 
-The response is "`204 No Content`"
+As result the new edit preferences of the user are returned as a
+link:#edit-preferences-info[EditPreferencesInfo] entity.
 
 .Response
 ----
-  HTTP/1.1 204 No Content
+  HTTP/1.1 200 OK
+  Content-Disposition: attachment
+  Content-Type: application/json;charset=UTF-8
+
+  )]}'
+  {
+    "theme": "ECLIPSE",
+    "key_map_type": "VIM",
+    "tab_size": 4,
+    "line_length": 80,
+    "cursor_blink_rate": 530,
+    "hide_top_menu": true,
+    "show_whitespace_errors": true,
+    "hide_line_numbers": true,
+    "match_brackets": true,
+    "auto_close_brackets": true
+  }
 ----
 
 [[get-starred-changes]]

gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/account/EditPreferencesIT.java

@@ -59,20 +59,18 @@ public class EditPreferencesIT extends AbstractDaemonTest {
     out.theme = Theme.TWILIGHT;
     out.keyMapType = KeyMapType.EMACS;
 
-    adminSession.put(endPoint, out).assertNoContent();
-
-    r = adminSession.get(endPoint);
+    r = adminSession.put(endPoint, out);
     r.assertOK();
+
     EditPreferencesInfo info = getEditPrefInfo(r);
     assertEditPreferences(info, out);
 
     // Partially filled input record
     EditPreferencesInfo in = new EditPreferencesInfo();
     in.tabSize = 42;
-    adminSession.put(endPoint, in).assertNoContent();
-
-    r = adminSession.get(endPoint);
+    r = adminSession.put(endPoint, in);
     r.assertOK();
+
     info = getEditPrefInfo(r);
     out.tabSize = in.tabSize;
     assertEditPreferences(info, out);

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/AccountApi.java

@@ -45,7 +45,7 @@ public class AccountApi {
 
   /** Put the account edit preferences */
   public static void putEditPreferences(EditPreferences in,
-      AsyncCallback<VoidResult> cb) {
+      AsyncCallback<EditPreferences> cb) {
     self().view("preferences.edit").put(in, cb);
   }
 

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/EditPreferences.java

@@ -37,7 +37,7 @@ public class EditPreferences extends JavaScriptObject {
     return p;
   }
 
-  public final void copyTo(EditPreferencesInfo p) {
+  public final EditPreferencesInfo copyTo(EditPreferencesInfo p) {
     p.tabSize = tabSize();
     p.lineLength = lineLength();
     p.cursorBlinkRate = cursorBlinkRate();
@@ -50,6 +50,7 @@ public class EditPreferences extends JavaScriptObject {
     p.autoCloseBrackets = autoCloseBrackets();
     p.theme = theme();
     p.keyMapType = keyMapType();
+    return p;
   }
 
   public final void theme(Theme i) {

gerrit-gwtui/src/main/java/com/google/gerrit/client/editor/EditPreferencesBox.java

@@ -15,11 +15,11 @@
 package com.google.gerrit.client.editor;
 
 import com.google.gerrit.client.Gerrit;
-import com.google.gerrit.client.VoidResult;
 import com.google.gerrit.client.account.AccountApi;
 import com.google.gerrit.client.account.EditPreferences;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.ui.NpIntTextBox;
+import com.google.gerrit.extensions.client.EditPreferencesInfo;
 import com.google.gerrit.extensions.client.KeyMapType;
 import com.google.gerrit.extensions.client.Theme;
 import com.google.gwt.core.client.GWT;
@@ -235,10 +235,11 @@ public class EditPreferencesBox extends Composite {
 
   @UiHandler("save")
   void onSave(@SuppressWarnings("unused") ClickEvent e) {
-    AccountApi.putEditPreferences(prefs, new GerritCallback<VoidResult>() {
+    AccountApi.putEditPreferences(prefs,
+        new GerritCallback<EditPreferences>() {
           @Override
-      public void onSuccess(VoidResult n) {
-        prefs.copyTo(Gerrit.getEditPreferences());
+          public void onSuccess(EditPreferences p) {
+            Gerrit.setEditPreferences(p.copyTo(new EditPreferencesInfo()));
           }
         });
     close();

gerrit-server/src/main/java/com/google/gerrit/server/account/SetEditPreferences.java

@@ -15,12 +15,12 @@
 package com.google.gerrit.server.account;
 
 import static com.google.gerrit.server.account.GetEditPreferences.readFromGit;
+import static com.google.gerrit.server.config.ConfigUtil.loadSection;
 import static com.google.gerrit.server.config.ConfigUtil.storeSection;
 
 import com.google.gerrit.extensions.client.EditPreferencesInfo;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
-import com.google.gerrit.extensions.restapi.Response;
 import com.google.gerrit.extensions.restapi.RestModifyView;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.server.CurrentUser;
@@ -58,7 +58,7 @@ public class SetEditPreferences implements
   }
 
   @Override
-  public Response<?> apply(AccountResource rsrc, EditPreferencesInfo in)
+  public EditPreferencesInfo apply(AccountResource rsrc, EditPreferencesInfo in)
       throws AuthException, BadRequestException, RepositoryNotFoundException,
       IOException, ConfigInvalidException {
     if (self.get() != rsrc.getUser()
@@ -73,6 +73,7 @@ public class SetEditPreferences implements
     Account.Id accountId = rsrc.getUser().getAccountId();
 
     VersionedAccountPreferences prefs;
+    EditPreferencesInfo out = new EditPreferencesInfo();
     try (MetaDataUpdate md = metaDataUpdateFactory.get().create(allUsersName)) {
       prefs = VersionedAccountPreferences.forUser(accountId);
       prefs.load(md);
@@ -80,8 +81,10 @@ public class SetEditPreferences implements
           readFromGit(accountId, gitMgr, allUsersName, in),
           EditPreferencesInfo.defaults());
       prefs.commit(md);
+      out = loadSection(prefs.getConfig(), UserConfigSections.EDIT, null, out,
+          EditPreferencesInfo.defaults(), null);
     }
 
-    return Response.none();
+    return out;
   }
 }