Update from Google.

--
MOE_MIGRATED_REVID=85702957

1 files changed, 76 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/vfs/FileStatusWithDigestAdapter.java b/src/main/java/com/google/devtools/build/lib/vfs/FileStatusWithDigestAdapter.java
new file mode 100644
index 0000000000..3f608ce071
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/vfs/FileStatusWithDigestAdapter.java
@@ -0,0 +1,76 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// 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.devtools.build.lib.vfs;
+
+import com.google.common.base.Preconditions;
+
+import java.io.IOException;
+
+import javax.annotation.Nullable;
+
+/**
+ * An adapter from FileStatus to FileStatusWithDigest.
+ */
+public class FileStatusWithDigestAdapter implements FileStatusWithDigest {
+  private final FileStatus stat;
+
+  public static FileStatusWithDigest adapt(FileStatus stat) {
+    return stat == null ? null : new FileStatusWithDigestAdapter(stat);
+  }
+
+  private FileStatusWithDigestAdapter(FileStatus stat) {
+    this.stat = Preconditions.checkNotNull(stat);
+  }
+
+  @Nullable
+  @Override
+  public byte[] getDigest() {
+    return null;
+  }
+
+  @Override
+  public boolean isFile() {
+    return stat.isFile();
+  }
+
+  @Override
+  public boolean isDirectory() {
+    return stat.isDirectory();
+  }
+
+  @Override
+  public boolean isSymbolicLink() {
+    return stat.isSymbolicLink();
+  }
+
+  @Override
+  public long getSize() throws IOException {
+    return stat.getSize();
+  }
+
+  @Override
+  public long getLastModifiedTime() throws IOException {
+    return stat.getLastModifiedTime();
+  }
+
+  @Override
+  public long getLastChangeTime() throws IOException {
+    return stat.getLastChangeTime();
+  }
+
+  @Override
+  public long getNodeId() throws IOException {
+    return stat.getNodeId();
+  }
+}