diff options
Diffstat (limited to 'updater_sample/src')
4 files changed, 173 insertions, 31 deletions
diff --git a/updater_sample/src/com/example/android/systemupdatersample/UpdateConfig.java b/updater_sample/src/com/example/android/systemupdatersample/UpdateConfig.java index cbee18fcb..23510e426 100644 --- a/updater_sample/src/com/example/android/systemupdatersample/UpdateConfig.java +++ b/updater_sample/src/com/example/android/systemupdatersample/UpdateConfig.java @@ -19,6 +19,7 @@ package com.example.android.systemupdatersample; import android.os.Parcel; import android.os.Parcelable; +import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; @@ -26,13 +27,13 @@ import java.io.File; import java.io.Serializable; /** - * UpdateConfig describes an update. It will be parsed from JSON, which is intended to + * An update description. It will be parsed from JSON, which is intended to * be sent from server to the update app, but in this sample app it will be stored on the device. */ public class UpdateConfig implements Parcelable { - public static final int TYPE_NON_STREAMING = 0; - public static final int TYPE_STREAMING = 1; + public static final int AB_INSTALL_TYPE_NON_STREAMING = 0; + public static final int AB_INSTALL_TYPE_STREAMING = 1; public static final Parcelable.Creator<UpdateConfig> CREATOR = new Parcelable.Creator<UpdateConfig>() { @@ -54,18 +55,30 @@ public class UpdateConfig implements Parcelable { JSONObject o = new JSONObject(json); c.mName = o.getString("name"); c.mUrl = o.getString("url"); - if (TYPE_NON_STREAMING_JSON.equals(o.getString("type"))) { - c.mInstallType = TYPE_NON_STREAMING; - } else if (TYPE_STREAMING_JSON.equals(o.getString("type"))) { - c.mInstallType = TYPE_STREAMING; - } else { - throw new JSONException("Invalid type, expected either " - + "NON_STREAMING or STREAMING, got " + o.getString("type")); + switch (o.getString("ab_install_type")) { + case AB_INSTALL_TYPE_NON_STREAMING_JSON: + c.mAbInstallType = AB_INSTALL_TYPE_NON_STREAMING; + break; + case AB_INSTALL_TYPE_STREAMING_JSON: + c.mAbInstallType = AB_INSTALL_TYPE_STREAMING; + break; + default: + throw new JSONException("Invalid type, expected either " + + "NON_STREAMING or STREAMING, got " + o.getString("ab_install_type")); } - if (o.has("metadata")) { - c.mMetadata = new Metadata( - o.getJSONObject("metadata").getInt("offset"), - o.getJSONObject("metadata").getInt("size")); + if (c.mAbInstallType == AB_INSTALL_TYPE_STREAMING) { + JSONObject meta = o.getJSONObject("ab_streaming_metadata"); + JSONArray propertyFilesJson = meta.getJSONArray("property_files"); + InnerFile[] propertyFiles = + new InnerFile[propertyFilesJson.length()]; + for (int i = 0; i < propertyFilesJson.length(); i++) { + JSONObject p = propertyFilesJson.getJSONObject(i); + propertyFiles[i] = new InnerFile( + p.getString("filename"), + p.getLong("offset"), + p.getLong("size")); + } + c.mAbStreamingMetadata = new StreamingMetadata(propertyFiles); } c.mRawJson = json; return c; @@ -74,8 +87,8 @@ public class UpdateConfig implements Parcelable { /** * these strings are represent types in JSON config files */ - private static final String TYPE_NON_STREAMING_JSON = "NON_STREAMING"; - private static final String TYPE_STREAMING_JSON = "STREAMING"; + private static final String AB_INSTALL_TYPE_NON_STREAMING_JSON = "NON_STREAMING"; + private static final String AB_INSTALL_TYPE_STREAMING_JSON = "STREAMING"; /** name will be visible on UI */ private String mName; @@ -84,10 +97,10 @@ public class UpdateConfig implements Parcelable { private String mUrl; /** non-streaming (first saves locally) OR streaming (on the fly) */ - private int mInstallType; + private int mAbInstallType; /** metadata is required only for streaming update */ - private Metadata mMetadata; + private StreamingMetadata mAbStreamingMetadata; private String mRawJson; @@ -97,15 +110,15 @@ public class UpdateConfig implements Parcelable { protected UpdateConfig(Parcel in) { this.mName = in.readString(); this.mUrl = in.readString(); - this.mInstallType = in.readInt(); - this.mMetadata = (Metadata) in.readSerializable(); + this.mAbInstallType = in.readInt(); + this.mAbStreamingMetadata = (StreamingMetadata) in.readSerializable(); this.mRawJson = in.readString(); } public UpdateConfig(String name, String url, int installType) { this.mName = name; this.mUrl = url; - this.mInstallType = installType; + this.mAbInstallType = installType; } public String getName() { @@ -121,16 +134,18 @@ public class UpdateConfig implements Parcelable { } public int getInstallType() { - return mInstallType; + return mAbInstallType; + } + + public StreamingMetadata getStreamingMetadata() { + return mAbStreamingMetadata; } /** - * "url" must be the file located on the device. - * * @return File object for given url */ public File getUpdatePackageFile() { - if (mInstallType != TYPE_NON_STREAMING) { + if (mAbInstallType != AB_INSTALL_TYPE_NON_STREAMING) { throw new RuntimeException("Expected non-streaming install type"); } if (!mUrl.startsWith("file://")) { @@ -148,29 +163,60 @@ public class UpdateConfig implements Parcelable { public void writeToParcel(Parcel dest, int flags) { dest.writeString(mName); dest.writeString(mUrl); - dest.writeInt(mInstallType); - dest.writeSerializable(mMetadata); + dest.writeInt(mAbInstallType); + dest.writeSerializable(mAbStreamingMetadata); dest.writeString(mRawJson); } /** - * Metadata for STREAMING update + * Metadata for streaming A/B update. */ - public static class Metadata implements Serializable { + public static class StreamingMetadata implements Serializable { private static final long serialVersionUID = 31042L; /** defines beginning of update data in archive */ + private InnerFile[] mPropertyFiles; + + public StreamingMetadata() { + mPropertyFiles = new InnerFile[0]; + } + + public StreamingMetadata(InnerFile[] propertyFiles) { + this.mPropertyFiles = propertyFiles; + } + + public InnerFile[] getPropertyFiles() { + return mPropertyFiles; + } + } + + /** + * Description of a file in an OTA package zip file. + */ + public static class InnerFile implements Serializable { + + private static final long serialVersionUID = 31043L; + + /** filename in an archive */ + private String mFilename; + + /** defines beginning of update data in archive */ private long mOffset; /** size of the update data in archive */ private long mSize; - public Metadata(long offset, long size) { + public InnerFile(String filename, long offset, long size) { + this.mFilename = filename; this.mOffset = offset; this.mSize = size; } + public String getFilename() { + return mFilename; + } + public long getOffset() { return mOffset; } @@ -178,6 +224,7 @@ public class UpdateConfig implements Parcelable { public long getSize() { return mSize; } + } } diff --git a/updater_sample/src/com/example/android/systemupdatersample/ui/MainActivity.java b/updater_sample/src/com/example/android/systemupdatersample/ui/MainActivity.java index 72e1b2469..8507a9e84 100644 --- a/updater_sample/src/com/example/android/systemupdatersample/ui/MainActivity.java +++ b/updater_sample/src/com/example/android/systemupdatersample/ui/MainActivity.java @@ -260,7 +260,7 @@ public class MainActivity extends Activity { * Applies the given update */ private void applyUpdate(UpdateConfig config) { - if (config.getInstallType() == UpdateConfig.TYPE_NON_STREAMING) { + if (config.getInstallType() == UpdateConfig.AB_INSTALL_TYPE_NON_STREAMING) { AbNonStreamingUpdate update = new AbNonStreamingUpdate(mUpdateEngine, config); try { update.execute(); diff --git a/updater_sample/src/com/example/android/systemupdatersample/util/FileDownloader.java b/updater_sample/src/com/example/android/systemupdatersample/util/FileDownloader.java new file mode 100644 index 000000000..806f17351 --- /dev/null +++ b/updater_sample/src/com/example/android/systemupdatersample/util/FileDownloader.java @@ -0,0 +1,93 @@ +/* + * 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.util; + +import android.util.Log; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.net.URL; +import java.net.URLConnection; + +/** + * Downloads chunk of a file from given url using {@code offset} and {@code size}, + * and saves to a given location. + * + * In real-life application this helper class should download from HTTP Server, + * but in this sample app it will only download from a local file. + */ +public final class FileDownloader { + + private String mUrl; + private long mOffset; + private long mSize; + private File mOut; + + public FileDownloader(String url, long offset, long size, File out) { + this.mUrl = url; + this.mOffset = offset; + this.mSize = size; + this.mOut = out; + } + + /** + * Downloads the file with given offset and size. + */ + public void download() throws IOException { + Log.d("FileDownloader", "downloading " + mOut.getName() + + " from " + mUrl + + " to " + mOut.getAbsolutePath()); + + URL url = new URL(mUrl); + URLConnection connection = url.openConnection(); + connection.connect(); + + // download the file + try (InputStream input = connection.getInputStream()) { + try (OutputStream output = new FileOutputStream(mOut)) { + long skipped = input.skip(mOffset); + if (skipped != mOffset) { + throw new IOException("Can't download file " + + mUrl + + " with given offset " + + mOffset); + } + byte[] data = new byte[4096]; + long total = 0; + while (total < mSize) { + int needToRead = (int) Math.min(4096, mSize - total); + int count = input.read(data, 0, needToRead); + if (count <= 0) { + break; + } + output.write(data, 0, count); + total += count; + } + if (total != mSize) { + throw new IOException("Can't download file " + + mUrl + + " with given size " + + mSize); + } + } + } + } + +} diff --git a/updater_sample/src/com/example/android/systemupdatersample/util/UpdateConfigs.java b/updater_sample/src/com/example/android/systemupdatersample/util/UpdateConfigs.java index 089f8b2f2..71d4df8ab 100644 --- a/updater_sample/src/com/example/android/systemupdatersample/util/UpdateConfigs.java +++ b/updater_sample/src/com/example/android/systemupdatersample/util/UpdateConfigs.java @@ -17,6 +17,7 @@ package com.example.android.systemupdatersample.util; import android.content.Context; +import android.util.Log; import com.example.android.systemupdatersample.UpdateConfig; @@ -70,6 +71,7 @@ public final class UpdateConfigs { StandardCharsets.UTF_8); configs.add(UpdateConfig.fromJson(json)); } catch (Exception e) { + Log.e("UpdateConfigs", "Can't read/parse config file " + f.getName(), e); throw new RuntimeException( "Can't read/parse config file " + f.getName(), e); } |