1 files changed, 91 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/project/Index.java b/java/com/google/gerrit/server/restapi/project/Index.java
new file mode 100644
index 0000000000..a346aedb0e
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/project/Index.java
@@ -0,0 +1,91 @@
+// Copyright (C) 2018 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.project;
+
+import static com.google.gerrit.server.git.QueueProvider.QueueType.BATCH;
+
+import com.google.common.flogger.FluentLogger;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.gerrit.common.data.GlobalCapability;
+import com.google.gerrit.extensions.annotations.RequiresCapability;
+import com.google.gerrit.extensions.api.projects.IndexProjectInput;
+import com.google.gerrit.extensions.common.ProjectInfo;
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestApiException;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.index.project.ProjectIndexer;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.index.IndexExecutor;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gerrit.server.project.ProjectResource;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import java.util.concurrent.Future;
+
+@RequiresCapability(GlobalCapability.MAINTAIN_SERVER)
+@Singleton
+public class Index implements RestModifyView<ProjectResource, IndexProjectInput> {
+  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
+
+  private final ProjectIndexer indexer;
+  private final ListeningExecutorService executor;
+  private final Provider<ListChildProjects> listChildProjectsProvider;
+
+  @Inject
+  Index(
+      ProjectIndexer indexer,
+      @IndexExecutor(BATCH) ListeningExecutorService executor,
+      Provider<ListChildProjects> listChildProjectsProvider) {
+    this.indexer = indexer;
+    this.executor = executor;
+    this.listChildProjectsProvider = listChildProjectsProvider;
+  }
+
+  @Override
+  public Response.Accepted apply(ProjectResource rsrc, IndexProjectInput input)
+      throws IOException, OrmException, PermissionBackendException, RestApiException {
+    String response = "Project " + rsrc.getName() + " submitted for reindexing";
+
+    reindex(rsrc.getNameKey(), input.async);
+    if (Boolean.TRUE.equals(input.indexChildren)) {
+      for (ProjectInfo child : listChildProjectsProvider.get().withRecursive(true).apply(rsrc)) {
+        reindex(new Project.NameKey(child.name), input.async);
+      }
+
+      response += " (indexing children recursively)";
+    }
+    return Response.accepted(response);
+  }
+
+  private void reindex(Project.NameKey project, Boolean async) throws IOException {
+    if (Boolean.TRUE.equals(async)) {
+      @SuppressWarnings("unused")
+      Future<?> possiblyIgnoredError =
+          executor.submit(
+              () -> {
+                try {
+                  indexer.index(project);
+                } catch (IOException e) {
+                  logger.atWarning().withCause(e).log("reindexing project %s failed", project);
+                }
+              });
+    } else {
+      indexer.index(project);
+    }
+  }
+}