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Implement Storage Access Framework

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* re-work finished mission database
* re-work DownloadMission and bump it Serializable version
* keep the classic Java IO API
* SAF Tree API support on Android Lollipop or higher
* add wrapper for SAF stream opening
* implement Closeable in SharpStream to replace the dispose() method

* do required changes for this API:
** remove any file creation logic from DownloadInitializer
** make PostProcessing Serializable and reduce the number of iterations
** update all strings.xml files
** storage helpers: StoredDirectoryHelper & StoredFileHelper
** best effort to handle any kind of SAF errors/exceptions
This commit is contained in:
kapodamy 2019-04-05 14:45:39 -03:00
parent 9e34fee58c
commit f6b32823ba
62 changed files with 2439 additions and 1180 deletions
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36
app/src/main/java/us/shandian/giga/get/DownloadInitializer.java
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@ -3,10 +3,10 @@ package us.shandian.giga.get;
import android.support.annotation.NonNull;
import android.util.Log;
import java.io.File;
import org.schabi.newpipe.streams.io.SharpStream;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.io.RandomAccessFile;
import java.net.HttpURLConnection;
import java.nio.channels.ClosedByInterruptException;
@ -111,34 +111,10 @@ public class DownloadInitializer extends Thread {
if (!mMission.running || Thread.interrupted()) return;
}
File file;
if (mMission.current == 0) {
file = new File(mMission.location);
if (!Utility.mkdir(file, true)) {
mMission.notifyError(DownloadMission.ERROR_PATH_CREATION, null);
return;
}
file = new File(file, mMission.name);
// if the name is used by another process, delete it
if (file.exists() && !file.isFile() && !file.delete()) {
mMission.notifyError(DownloadMission.ERROR_FILE_CREATION, null);
return;
}
if (!file.exists() && !file.createNewFile()) {
mMission.notifyError(DownloadMission.ERROR_FILE_CREATION, null);
return;
}
} else {
file = new File(mMission.location, mMission.name);
}
RandomAccessFile af = new RandomAccessFile(file, "rw");
af.setLength(mMission.offsets[mMission.current] + mMission.length);
af.seek(mMission.offsets[mMission.current]);
af.close();
SharpStream fs = mMission.storage.getStream();
fs.setLength(mMission.offsets[mMission.current] + mMission.length);
fs.seek(mMission.offsets[mMission.current]);
fs.close();
if (!mMission.running || Thread.interrupted()) return;