Add ManifestConfigFileParser to AOSP MDD
Bug: 238105484
Test: build
Change-Id: I9c9572d38b2b5c285b3aa2536a1808d2bcbec8d7
diff --git a/java/com/google/android/libraries/mobiledatadownload/populator/ManifestConfigFileParser.java b/java/com/google/android/libraries/mobiledatadownload/populator/ManifestConfigFileParser.java
new file mode 100644
index 0000000..61ecba3
--- /dev/null
+++ b/java/com/google/android/libraries/mobiledatadownload/populator/ManifestConfigFileParser.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2022 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.android.libraries.mobiledatadownload.populator;
+
+import android.net.Uri;
+
+import com.google.android.libraries.mobiledatadownload.internal.logging.LogUtil;
+import com.google.android.libraries.mobiledatadownload.populator.ManifestFileGroupPopulator.ManifestConfigParser;
+import com.google.android.libraries.mobiledatadownload.file.SynchronousFileStorage;
+import com.google.android.libraries.mobiledatadownload.file.openers.ReadProtoOpener;
+import com.google.android.libraries.mobiledatadownload.tracing.PropagatedFutures;
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.mobiledatadownload.DownloadConfigProto.ManifestConfig;
+
+import java.util.concurrent.Executor;
+
+/**
+ * The default manifest parser that parses a given manifest file to {@link ManifestConfig}.
+ *
+ * <p>The format of the manifest file supported by this {@link ManifestConfigFileParser} is proto.
+ * That is, the content of manifest file should be accepted by {@link
+ * ManifestConfig#parseFrom(byte[])}.
+ */
+public final class ManifestConfigFileParser implements ManifestConfigParser {
+
+ private static final String TAG = "ManifestConfigFileParser";
+
+ private final SynchronousFileStorage fileStorage;
+ private final Executor backgroundExecutor;
+
+ public ManifestConfigFileParser(SynchronousFileStorage fileStorage, Executor backgroundExecutor) {
+ this.fileStorage = fileStorage;
+ this.backgroundExecutor = backgroundExecutor;
+ }
+
+ @Override
+ public ListenableFuture<ManifestConfig> parse(Uri fileUri) {
+ return PropagatedFutures.submit(
+ () -> {
+ LogUtil.d("%s: Start parsing manifest file at %s", TAG, fileUri);
+ ManifestConfig manifestConfig =
+ fileStorage.open(fileUri, ReadProtoOpener.create(ManifestConfig.parser()));
+ return manifestConfig;
+ },
+ backgroundExecutor);
+ }
+}
\ No newline at end of file
