Part 3.5 of 5: Assets

Adds support for parsing and merging assets. This introduces the DataKey and DataAsset interfaces which allow reuse of the FileDataResource for assets, the RelativeAssetPath which acts as a DataKey for assets (the relative asset path is the path that the asset will reside inside the final apk.) It also extends the AndroidDataSetBuilder to handle the creation of assets, and cleans up the interface a little.

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MOS_MIGRATED_REVID=118060379

1 files changed, 46 insertions, 0 deletions

diff --git a/src/tools/android/java/com/google/devtools/build/android/DataAsset.java b/src/tools/android/java/com/google/devtools/build/android/DataAsset.java
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index 0000000000..5379e88960
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+++ b/src/tools/android/java/com/google/devtools/build/android/DataAsset.java
@@ -0,0 +1,46 @@
+// Copyright 2016 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.android;
+
+import java.io.IOException;
+import java.nio.file.Path;
+
+/**
+ * Represents an Asset created from a binary file.
+ */
+public interface DataAsset {
+  /**
+   * Provides the RelativeAssetPath of the DataAsset.
+   */
+  DataKey dataKey();
+
+  /**
+   * Provides the Path to the file from which the DataResource was derived.
+   */
+  Path source();
+
+  /**
+   * Writes the asset to the given asset directory.
+   * @param newAssetDirectory The new directory for this asset.
+   * @throws IOException if there are issues with writing the asset.
+   */
+  void write(Path newAssetDirectory) throws IOException;
+
+  /**
+   * Compares one data resource to another.
+   *
+   * Not implementing Comparable as it would conflict with DataResource.
+   */
+  int compareTo(DataAsset other);
+}