1 files changed, 56 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/change/GetPastAssignees.java b/java/com/google/gerrit/server/restapi/change/GetPastAssignees.java
new file mode 100644
index 0000000000..279cfe3b21
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/change/GetPastAssignees.java
@@ -0,0 +1,56 @@
+// Copyright (C) 2016 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.server.restapi.change;
+
+import static java.util.stream.Collectors.toList;
+
+import com.google.gerrit.extensions.common.AccountInfo;
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestReadView;
+import com.google.gerrit.reviewdb.client.Account;
+import com.google.gerrit.server.account.AccountLoader;
+import com.google.gerrit.server.change.ChangeResource;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+
+@Singleton
+public class GetPastAssignees implements RestReadView<ChangeResource> {
+  private final AccountLoader.Factory accountLoaderFactory;
+
+  @Inject
+  GetPastAssignees(AccountLoader.Factory accountLoaderFactory) {
+    this.accountLoaderFactory = accountLoaderFactory;
+  }
+
+  @Override
+  public Response<List<AccountInfo>> apply(ChangeResource rsrc)
+      throws OrmException, PermissionBackendException {
+
+    Set<Account.Id> pastAssignees = rsrc.getNotes().load().getPastAssignees();
+    if (pastAssignees == null) {
+      return Response.ok(Collections.emptyList());
+    }
+
+    AccountLoader accountLoader = accountLoaderFactory.create(true);
+    List<AccountInfo> infos = pastAssignees.stream().map(accountLoader::get).collect(toList());
+    accountLoader.fill();
+    return Response.ok(infos);
+  }
+}