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author | Zhomart Mukhamejanov <zhomart@google.com> | 2018-04-23 20:38:54 +0200 |
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committer | Zhomart Mukhamejanov <zhomart@google.com> | 2018-05-08 23:12:33 +0200 |
commit | 0dd5a83d0ec4c9d7b51843dd6eebd5ce92a1ad92 (patch) | |
tree | 54ee79783c840c9dea16973abeb99602aef66881 /updater_sample/src/com/example/android/systemupdatersample/services | |
parent | Merge "recovery: Remove unneeded include of minui.h." (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | updater_sample/src/com/example/android/systemupdatersample/services/PrepareStreamingService.java | 216 |
1 files changed, 216 insertions, 0 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 new file mode 100644 index 000000000..840a6d607 --- /dev/null +++ b/updater_sample/src/com/example/android/systemupdatersample/services/PrepareStreamingService.java @@ -0,0 +1,216 @@ +/* + * 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.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.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.IOException; +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 + ); + + @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 { + downloadPreStreamingFiles(config, OTA_PACKAGE_DIR); + } catch (IOException e) { + Log.e(TAG, "Failed to download pre-streaming files", e); + resultReceiver.send(RESULT_CODE_ERROR, null); + return; + } + + Optional<UpdateConfig.PackageFile> payloadBinary = + UpdateConfigs.getPropertyFile(PAYLOAD_BINARY_FILE_NAME, config); + + if (!payloadBinary.isPresent()) { + Log.e(TAG, "Failed to find " + PAYLOAD_BINARY_FILE_NAME + " in config"); + resultReceiver.send(RESULT_CODE_ERROR, null); + return; + } + + Optional<UpdateConfig.PackageFile> properties = + UpdateConfigs.getPropertyFile(PAYLOAD_PROPERTIES_FILE_NAME, config); + + if (!properties.isPresent()) { + Log.e(TAG, "Failed to find " + PAYLOAD_PROPERTIES_FILE_NAME + " in config"); + resultReceiver.send(RESULT_CODE_ERROR, null); + return; + } + + PayloadSpec spec; + try { + spec = PayloadSpecs.forStreaming(config.getUrl(), + payloadBinary.get().getOffset(), + payloadBinary.get().getSize(), + Paths.get(OTA_PACKAGE_DIR, properties.get().getFilename()).toFile() + ); + } catch (IOException e) { + Log.e(TAG, "PayloadSpecs failed to create PayloadSpec for streaming", e); + resultReceiver.send(RESULT_CODE_ERROR, null); + return; + } + + resultReceiver.send(RESULT_CODE_SUCCESS, CallbackResultReceiver.createBundle(spec)); + } + + /** + * Downloads files defined in {@link UpdateConfig#getStreamingMetadata()} + * and exists in {@code PRE_STREAMING_FILES_SET}, and put them + * in directory {@code dir}. + * @throws IOException when can't download a file + */ + private static void downloadPreStreamingFiles(UpdateConfig config, String dir) + throws IOException { + Log.d(TAG, "Downloading files to " + dir); + for (UpdateConfig.PackageFile file : config.getStreamingMetadata().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(); + } + } + } + + /** + * 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); + } + } + +} |