1 files changed, 0 insertions, 251 deletions

diff --git a/updater_sample/src/com/example/android/systemupdatersample/services/PrepareStreamingService.java b/updater_sample/src/com/example/android/systemupdatersample/services/PrepareStreamingService.java
deleted file mode 100644
index 931404857..000000000
--- a/updater_sample/src/com/example/android/systemupdatersample/services/PrepareStreamingService.java
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * Copyright (C) 2018 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.example.android.systemupdatersample.services;
-
-import static com.example.android.systemupdatersample.util.PackageFiles.COMPATIBILITY_ZIP_FILE_NAME;
-import static com.example.android.systemupdatersample.util.PackageFiles.OTA_PACKAGE_DIR;
-import static com.example.android.systemupdatersample.util.PackageFiles.PAYLOAD_BINARY_FILE_NAME;
-import static com.example.android.systemupdatersample.util.PackageFiles.PAYLOAD_PROPERTIES_FILE_NAME;
-
-import android.app.IntentService;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.RecoverySystem;
-import android.os.ResultReceiver;
-import android.util.Log;
-
-import com.example.android.systemupdatersample.PayloadSpec;
-import com.example.android.systemupdatersample.UpdateConfig;
-import com.example.android.systemupdatersample.util.FileDownloader;
-import com.example.android.systemupdatersample.util.PackageFiles;
-import com.example.android.systemupdatersample.util.PayloadSpecs;
-import com.example.android.systemupdatersample.util.UpdateConfigs;
-import com.google.common.collect.ImmutableSet;
-
-import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.util.Optional;
-
-/**
- * This IntentService will download/extract the necessary files from the package zip
- * without downloading the whole package. And it constructs {@link PayloadSpec}.
- * All this work required to install streaming A/B updates.
- *
- * PrepareStreamingService runs on it's own thread. It will notify activity
- * using interface {@link UpdateResultCallback} when update is ready to install.
- */
-public class PrepareStreamingService extends IntentService {
-
-    /**
-     * UpdateResultCallback result codes.
-     */
-    public static final int RESULT_CODE_SUCCESS = 0;
-    public static final int RESULT_CODE_ERROR = 1;
-
-    /**
-     * This interface is used to send results from {@link PrepareStreamingService} to
-     * {@code MainActivity}.
-     */
-    public interface UpdateResultCallback {
-
-        /**
-         * Invoked when files are downloaded and payload spec is constructed.
-         *
-         * @param resultCode result code, values are defined in {@link PrepareStreamingService}
-         * @param payloadSpec prepared payload spec for streaming update
-         */
-        void onReceiveResult(int resultCode, PayloadSpec payloadSpec);
-    }
-
-    /**
-     * Starts PrepareStreamingService.
-     *
-     * @param context application context
-     * @param config update config
-     * @param resultCallback callback that will be called when the update is ready to be installed
-     */
-    public static void startService(Context context,
-            UpdateConfig config,
-            UpdateResultCallback resultCallback) {
-        Log.d(TAG, "Starting PrepareStreamingService");
-        ResultReceiver receiver = new CallbackResultReceiver(new Handler(), resultCallback);
-        Intent intent = new Intent(context, PrepareStreamingService.class);
-        intent.putExtra(EXTRA_PARAM_CONFIG, config);
-        intent.putExtra(EXTRA_PARAM_RESULT_RECEIVER, receiver);
-        context.startService(intent);
-    }
-
-    public PrepareStreamingService() {
-        super(TAG);
-    }
-
-    private static final String TAG = "PrepareStreamingService";
-
-    /**
-     * Extra params that will be sent from Activity to IntentService.
-     */
-    private static final String EXTRA_PARAM_CONFIG = "config";
-    private static final String EXTRA_PARAM_RESULT_RECEIVER = "result-receiver";
-
-    /**
-     * The files that should be downloaded before streaming.
-     */
-    private static final ImmutableSet<String> PRE_STREAMING_FILES_SET =
-            ImmutableSet.of(
-                PackageFiles.CARE_MAP_FILE_NAME,
-                PackageFiles.COMPATIBILITY_ZIP_FILE_NAME,
-                PackageFiles.METADATA_FILE_NAME,
-                PackageFiles.PAYLOAD_PROPERTIES_FILE_NAME
-            );
-
-    private final PayloadSpecs mPayloadSpecs = new PayloadSpecs();
-
-    @Override
-    protected void onHandleIntent(Intent intent) {
-        Log.d(TAG, "On handle intent is called");
-        UpdateConfig config = intent.getParcelableExtra(EXTRA_PARAM_CONFIG);
-        ResultReceiver resultReceiver = intent.getParcelableExtra(EXTRA_PARAM_RESULT_RECEIVER);
-
-        try {
-            PayloadSpec spec = execute(config);
-            resultReceiver.send(RESULT_CODE_SUCCESS, CallbackResultReceiver.createBundle(spec));
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to prepare streaming update", e);
-            resultReceiver.send(RESULT_CODE_ERROR, null);
-        }
-    }
-
-    /**
-     * 1. Downloads files for streaming updates.
-     * 2. Makes sure required files are present.
-     * 3. Checks OTA package compatibility with the device.
-     * 4. Constructs {@link PayloadSpec} for streaming update.
-     */
-    private PayloadSpec execute(UpdateConfig config)
-            throws IOException, PreparationFailedException {
-
-        downloadPreStreamingFiles(config, OTA_PACKAGE_DIR);
-
-        Optional<UpdateConfig.PackageFile> payloadBinary =
-                UpdateConfigs.getPropertyFile(PAYLOAD_BINARY_FILE_NAME, config);
-
-        if (!payloadBinary.isPresent()) {
-            throw new PreparationFailedException(
-                    "Failed to find " + PAYLOAD_BINARY_FILE_NAME + " in config");
-        }
-
-        if (!UpdateConfigs.getPropertyFile(PAYLOAD_PROPERTIES_FILE_NAME, config).isPresent()
-                || !Paths.get(OTA_PACKAGE_DIR, PAYLOAD_PROPERTIES_FILE_NAME).toFile().exists()) {
-            throw new IOException(PAYLOAD_PROPERTIES_FILE_NAME + " not found");
-        }
-
-        File compatibilityFile = Paths.get(OTA_PACKAGE_DIR, COMPATIBILITY_ZIP_FILE_NAME).toFile();
-        if (compatibilityFile.isFile()) {
-            Log.i(TAG, "Verifying OTA package for compatibility with the device");
-            if (!verifyPackageCompatibility(compatibilityFile)) {
-                throw new PreparationFailedException(
-                        "OTA package is not compatible with this device");
-            }
-        }
-
-        return mPayloadSpecs.forStreaming(config.getUrl(),
-                payloadBinary.get().getOffset(),
-                payloadBinary.get().getSize(),
-                Paths.get(OTA_PACKAGE_DIR, PAYLOAD_PROPERTIES_FILE_NAME).toFile());
-    }
-
-    /**
-     * Downloads files defined in {@link UpdateConfig#getAbConfig()}
-     * and exists in {@code PRE_STREAMING_FILES_SET}, and put them
-     * in directory {@code dir}.
-     * @throws IOException when can't download a file
-     */
-    private void downloadPreStreamingFiles(UpdateConfig config, String dir)
-            throws IOException {
-        Log.d(TAG, "Deleting existing files from " + dir);
-        for (String file : PRE_STREAMING_FILES_SET) {
-            Files.deleteIfExists(Paths.get(OTA_PACKAGE_DIR, file));
-        }
-        Log.d(TAG, "Downloading files to " + dir);
-        for (UpdateConfig.PackageFile file : config.getAbConfig().getPropertyFiles()) {
-            if (PRE_STREAMING_FILES_SET.contains(file.getFilename())) {
-                Log.d(TAG, "Downloading file " + file.getFilename());
-                FileDownloader downloader = new FileDownloader(
-                        config.getUrl(),
-                        file.getOffset(),
-                        file.getSize(),
-                        Paths.get(dir, file.getFilename()).toFile());
-                downloader.download();
-            }
-        }
-    }
-
-    /**
-     * @param file physical location of {@link PackageFiles#COMPATIBILITY_ZIP_FILE_NAME}
-     * @return true if OTA package is compatible with this device
-     */
-    private boolean verifyPackageCompatibility(File file) {
-        try {
-            return RecoverySystem.verifyPackageCompatibility(file);
-        } catch (IOException e) {
-            Log.e(TAG, "Failed to verify package compatibility", e);
-            return false;
-        }
-    }
-
-    /**
-     * Used by {@link PrepareStreamingService} to pass {@link PayloadSpec}
-     * to {@link UpdateResultCallback#onReceiveResult}.
-     */
-    private static class CallbackResultReceiver extends ResultReceiver {
-
-        static Bundle createBundle(PayloadSpec payloadSpec) {
-            Bundle b = new Bundle();
-            b.putSerializable(BUNDLE_PARAM_PAYLOAD_SPEC, payloadSpec);
-            return b;
-        }
-
-        private static final String BUNDLE_PARAM_PAYLOAD_SPEC = "payload-spec";
-
-        private UpdateResultCallback mUpdateResultCallback;
-
-        CallbackResultReceiver(Handler handler, UpdateResultCallback updateResultCallback) {
-            super(handler);
-            this.mUpdateResultCallback = updateResultCallback;
-        }
-
-        @Override
-        protected void onReceiveResult(int resultCode, Bundle resultData) {
-            PayloadSpec payloadSpec = null;
-            if (resultCode == RESULT_CODE_SUCCESS) {
-                payloadSpec = (PayloadSpec) resultData.getSerializable(BUNDLE_PARAM_PAYLOAD_SPEC);
-            }
-            mUpdateResultCallback.onReceiveResult(resultCode, payloadSpec);
-        }
-    }
-
-    private static class PreparationFailedException extends Exception {
-        PreparationFailedException(String message) {
-            super(message);
-        }
-    }
-
-}