1 files changed, 100 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/project/FilesInCommitCollection.java b/java/com/google/gerrit/server/restapi/project/FilesInCommitCollection.java
new file mode 100644
index 0000000000..09f973b50f
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/project/FilesInCommitCollection.java
@@ -0,0 +1,100 @@
+// Copyright (C) 2014 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 com.google.gerrit.extensions.client.DiffPreferencesInfo;
+import com.google.gerrit.extensions.registration.DynamicMap;
+import com.google.gerrit.extensions.restapi.ChildCollection;
+import com.google.gerrit.extensions.restapi.IdString;
+import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
+import com.google.gerrit.extensions.restapi.RestReadView;
+import com.google.gerrit.extensions.restapi.RestView;
+import com.google.gerrit.reviewdb.client.Patch;
+import com.google.gerrit.server.change.FileInfoJson;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gerrit.server.patch.PatchListKey;
+import com.google.gerrit.server.patch.PatchListNotAvailableException;
+import com.google.gerrit.server.project.CommitResource;
+import com.google.gerrit.server.project.FileResource;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import org.eclipse.jgit.revwalk.RevCommit;
+import org.kohsuke.args4j.Option;
+
+@Singleton
+public class FilesInCommitCollection implements ChildCollection<CommitResource, FileResource> {
+  private final DynamicMap<RestView<FileResource>> views;
+  private final Provider<ListFiles> list;
+  private final GitRepositoryManager repoManager;
+
+  @Inject
+  FilesInCommitCollection(
+      DynamicMap<RestView<FileResource>> views,
+      Provider<ListFiles> list,
+      GitRepositoryManager repoManager) {
+    this.views = views;
+    this.list = list;
+    this.repoManager = repoManager;
+  }
+
+  @Override
+  public RestView<CommitResource> list() throws ResourceNotFoundException {
+    return list.get();
+  }
+
+  @Override
+  public FileResource parse(CommitResource parent, IdString id)
+      throws ResourceNotFoundException, IOException {
+    if (Patch.isMagic(id.get())) {
+      return new FileResource(parent.getProjectState(), parent.getCommit(), id.get());
+    }
+    return FileResource.create(repoManager, parent.getProjectState(), parent.getCommit(), id.get());
+  }
+
+  @Override
+  public DynamicMap<RestView<FileResource>> views() {
+    return views;
+  }
+
+  public static final class ListFiles implements RestReadView<CommitResource> {
+    @Option(name = "--parent", metaVar = "parent-number")
+    int parentNum;
+
+    private final FileInfoJson fileInfoJson;
+
+    @Inject
+    public ListFiles(FileInfoJson fileInfoJson) {
+      this.fileInfoJson = fileInfoJson;
+    }
+
+    @Override
+    public Object apply(CommitResource resource) throws PatchListNotAvailableException {
+      RevCommit commit = resource.getCommit();
+      PatchListKey key;
+
+      if (parentNum > 0) {
+        key =
+            PatchListKey.againstParentNum(
+                parentNum, commit, DiffPreferencesInfo.Whitespace.IGNORE_NONE);
+      } else {
+        key = PatchListKey.againstCommit(null, commit, DiffPreferencesInfo.Whitespace.IGNORE_NONE);
+      }
+
+      return fileInfoJson.toFileInfoMap(resource.getProjectState().getNameKey(), key);
+    }
+  }
+}