1 files changed, 43 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/serialization/strings/StringCodecs.java b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/strings/StringCodecs.java
new file mode 100644
index 0000000000..24f36ecb07
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/strings/StringCodecs.java
@@ -0,0 +1,43 @@
+// Copyright 2017 The Bazel Authors. 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.skyframe.serialization.strings;
+
+import com.google.devtools.build.lib.skyframe.serialization.ObjectCodec;
+
+/** Utility for accessing (potentially platform-specific) {@link String} {@link ObjectCodec}s. */
+public final class StringCodecs {
+
+  private static final FastStringCodec fastStringCodec = new FastStringCodec();
+  private static final StringCodec stringCodec = new StringCodec();
+
+  private StringCodecs() {}
+
+  /**
+   * Returns singleton instance optimized for almost-always ASCII data. This instance can still
+   * serialize/deserialize UTF-8 data, but with potentially worse performance than
+   * {@link #simple()}.
+   */
+  public static ObjectCodec<String> asciiOptimized() {
+    return fastStringCodec;
+  }
+
+  /**
+   * Returns singleton instance of basic implementation. Should be preferred over
+   * {@link #asciiOptimized()} when a sufficient amount of UTF-8 data is expected.
+   */
+  public static ObjectCodec<String> simple() {
+    return stringCodec;
+  }
+}