1 files changed, 78 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/change/IncludedIn.java b/java/com/google/gerrit/server/change/IncludedIn.java
new file mode 100644
index 0000000000..3ac6959484
--- /dev/null
+++ b/java/com/google/gerrit/server/change/IncludedIn.java
@@ -0,0 +1,78 @@
+// Copyright (C) 2013 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.change;
+
+import com.google.common.collect.ListMultimap;
+import com.google.common.collect.MultimapBuilder;
+import com.google.gerrit.extensions.api.changes.IncludedInInfo;
+import com.google.gerrit.extensions.config.ExternalIncludedIn;
+import com.google.gerrit.extensions.restapi.BadRequestException;
+import com.google.gerrit.extensions.restapi.ResourceConflictException;
+import com.google.gerrit.extensions.restapi.RestApiException;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gerrit.server.plugincontext.PluginSetContext;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import org.eclipse.jgit.errors.IncorrectObjectTypeException;
+import org.eclipse.jgit.errors.MissingObjectException;
+import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.revwalk.RevCommit;
+import org.eclipse.jgit.revwalk.RevWalk;
+
+@Singleton
+public class IncludedIn {
+  private final GitRepositoryManager repoManager;
+  private final PluginSetContext<ExternalIncludedIn> externalIncludedIn;
+
+  @Inject
+  IncludedIn(
+      GitRepositoryManager repoManager, PluginSetContext<ExternalIncludedIn> externalIncludedIn) {
+    this.repoManager = repoManager;
+    this.externalIncludedIn = externalIncludedIn;
+  }
+
+  public IncludedInInfo apply(Project.NameKey project, String revisionId)
+      throws RestApiException, IOException {
+    try (Repository r = repoManager.openRepository(project);
+        RevWalk rw = new RevWalk(r)) {
+      rw.setRetainBody(false);
+      RevCommit rev;
+      try {
+        rev = rw.parseCommit(ObjectId.fromString(revisionId));
+      } catch (IncorrectObjectTypeException err) {
+        throw new BadRequestException(err.getMessage());
+      } catch (MissingObjectException err) {
+        throw new ResourceConflictException(err.getMessage());
+      }
+
+      IncludedInResolver.Result d = IncludedInResolver.resolve(r, rw, rev);
+      ListMultimap<String, String> external = MultimapBuilder.hashKeys().arrayListValues().build();
+      externalIncludedIn.runEach(
+          ext -> {
+            ListMultimap<String, String> extIncludedIns =
+                ext.getIncludedIn(project.get(), rev.name(), d.tags(), d.branches());
+            if (extIncludedIns != null) {
+              external.putAll(extIncludedIns);
+            }
+          });
+
+      return new IncludedInInfo(
+          d.branches(), d.tags(), (!external.isEmpty() ? external.asMap() : null));
+    }
+  }
+}