Fix large file download failure issue

The root cause is int overflow as integer can only hold size
Integer.MAX_VALUE = 0x7FFFFFFF. It is about 2G. So, when a file size
is greater than 2G, it throws a "NumberFormatException", and then
mark this download "unsuccessfully".
The progress bar in notification for the large file downloading was
not correct either. The total file size was converted from long to
int value when in builder.setProgress().

Change-Id: Ib038860e26cf8cade2c423403585c207f8b8979b

2 files changed, 8 insertions, 3 deletions

diff --git a/src/com/android/providers/downloads/DownloadNotification.java b/src/com/android/providers/downloads/DownloadNotification.java
index bbd39f60..efdc08b0 100644
--- a/src/com/android/providers/downloads/DownloadNotification.java
+++ b/src/com/android/providers/downloads/DownloadNotification.java
@@ -190,8 +190,13 @@ class DownloadNotification {
             if (hasPausedText) {
                 builder.setContentText(item.mPausedText);
             } else {
-                builder.setProgress(
-                        (int) item.mTotalTotal, (int) item.mTotalCurrent, item.mTotalTotal == -1);
+                long max = item.mTotalTotal;
+                long progress = item.mTotalCurrent;
+                while(max > Integer.MAX_VALUE) {
+                    max = max / 1024;
+                    progress = progress / 1024;
+                }
+                builder.setProgress((int) max, (int) progress, item.mTotalTotal == -1);
                 if (hasContentText) {
                     builder.setContentInfo(
                             buildPercentageLabel(mContext, item.mTotalTotal, item.mTotalCurrent));
diff --git a/src/com/android/providers/downloads/DownloadThread.java b/src/com/android/providers/downloads/DownloadThread.java
index bd91eaa1..537a9ea7 100644
--- a/src/com/android/providers/downloads/DownloadThread.java
+++ b/src/com/android/providers/downloads/DownloadThread.java
@@ -473,7 +473,7 @@ public class DownloadThread extends Thread {
         mContext.getContentResolver().update(mInfo.getAllDownloadsUri(), values, null, null);
 
         boolean lengthMismatched = (innerState.mHeaderContentLength != null)
-                && (state.mCurrentBytes != Integer.parseInt(innerState.mHeaderContentLength));
+                && (state.mCurrentBytes != Long.parseLong(innerState.mHeaderContentLength));
         if (lengthMismatched) {
             if (cannotResume(state)) {
                 throw new StopRequestException(Downloads.Impl.STATUS_CANNOT_RESUME,