@Override
@SuppressWarnings("unchecked")
public Void doInBackground(Object... args) {
List<HistoricalRecord> historicalRecords = (List<HistoricalRecord>) args[0];
String hostoryFileName = (String) args[1];
FileOutputStream fos = null;
try {
fos = mContext.openFileOutput(hostoryFileName, Context.MODE_PRIVATE);
} catch (FileNotFoundException fnfe) {
Log.e(LOG_TAG, "Error writing historical recrod file: " + hostoryFileName, fnfe);
return null;
}
XmlSerializer serializer = Xml.newSerializer();
try {
serializer.setOutput(fos, null);
serializer.startDocument("UTF-8", true);
serializer.startTag(null, TAG_HISTORICAL_RECORDS);
final int recordCount = historicalRecords.size();
for (int i = 0; i < recordCount; i++) {
HistoricalRecord record = historicalRecords.remove(0);
serializer.startTag(null, TAG_HISTORICAL_RECORD);
serializer.attribute(null, ATTRIBUTE_ACTIVITY, record.activity.flattenToString());
serializer.attribute(null, ATTRIBUTE_TIME, String.valueOf(record.time));
serializer.attribute(null, ATTRIBUTE_WEIGHT, String.valueOf(record.weight));
serializer.endTag(null, TAG_HISTORICAL_RECORD);
if (DEBUG) {
Log.i(LOG_TAG, "Wrote " + record.toString());
}
}
serializer.endTag(null, TAG_HISTORICAL_RECORDS);
serializer.endDocument();
if (DEBUG) {
Log.i(LOG_TAG, "Wrote " + recordCount + " historical records.");
}
} catch (IllegalArgumentException iae) {
Log.e(LOG_TAG, "Error writing historical recrod file: " + mHistoryFileName, iae);
} catch (IllegalStateException ise) {
Log.e(LOG_TAG, "Error writing historical recrod file: " + mHistoryFileName, ise);
} catch (IOException ioe) {
Log.e(LOG_TAG, "Error writing historical recrod file: " + mHistoryFileName, ioe);
} finally {
mCanReadHistoricalData = true;
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
/* ignore */
}
}
}
return null;
}
void readHistoricalDataFromStream(FileInputStream fis) {
try {
XmlPullParser parser = Xml.newPullParser();
parser.setInput(fis, null);
int type = XmlPullParser.START_DOCUMENT;
while (type != XmlPullParser.END_DOCUMENT && type != XmlPullParser.START_TAG) {
type = parser.next();
}
if (!TAG_HISTORICAL_RECORDS.equals(parser.getName())) {
throw new XmlPullParserException(
"Share records file does not start with " + TAG_HISTORICAL_RECORDS + " tag.");
}
List<HistoricalRecord> historicalRecords = mHistoricalRecords;
historicalRecords.clear();
while (true) {
type = parser.next();
if (type == XmlPullParser.END_DOCUMENT) {
break;
}
if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
continue;
}
String nodeName = parser.getName();
if (!TAG_HISTORICAL_RECORD.equals(nodeName)) {
throw new XmlPullParserException("Share records file not well-formed.");
}
String activity = parser.getAttributeValue(null, ATTRIBUTE_ACTIVITY);
final long time = Long.parseLong(parser.getAttributeValue(null, ATTRIBUTE_TIME));
final float weight = Float.parseFloat(parser.getAttributeValue(null, ATTRIBUTE_WEIGHT));
HistoricalRecord readRecord = new HistoricalRecord(activity, time, weight);
historicalRecords.add(readRecord);
if (DEBUG) {
Log.i(LOG_TAG, "Read " + readRecord.toString());
}
}
if (DEBUG) {
Log.i(LOG_TAG, "Read " + historicalRecords.size() + " historical records.");
}
} catch (XmlPullParserException | IOException xppe) {
Log.e(LOG_TAG, "Error reading historical record file: " + mHistoryFileName, xppe);
} finally {
if (fis != null) {
try {
fis.close();
} catch (IOException ioe) {
/* ignore */
}
}
}
}
/** Command for reading the historical records from a file off the UI thread. */
private void readHistoricalDataImpl() {
FileInputStream fis = null;
try {
GeckoProfile profile = GeckoProfile.get(mContext);
File f = profile.getFile(mHistoryFileName);
if (!f.exists()) {
// Fall back to the non-profile aware file if it exists...
File oldFile = new File(mHistoryFileName);
oldFile.renameTo(f);
}
fis = new FileInputStream(f);
} catch (FileNotFoundException fnfe) {
try {
Distribution dist = new Distribution(mContext);
File distFile = dist.getDistributionFile("quickshare/" + mHistoryFileName);
if (distFile == null) {
if (DEBUG) {
Log.i(LOG_TAG, "Could not open historical records file: " + mHistoryFileName);
}
return;
}
fis = new FileInputStream(distFile);
} catch (Exception ex) {
if (DEBUG) {
Log.i(LOG_TAG, "Could not open historical records file: " + mHistoryFileName);
}
return;
}
}
try {
XmlPullParser parser = Xml.newPullParser();
parser.setInput(fis, null);
int type = XmlPullParser.START_DOCUMENT;
while (type != XmlPullParser.END_DOCUMENT && type != XmlPullParser.START_TAG) {
type = parser.next();
}
if (!TAG_HISTORICAL_RECORDS.equals(parser.getName())) {
throw new XmlPullParserException(
"Share records file does not start with " + TAG_HISTORICAL_RECORDS + " tag.");
}
List<HistoricalRecord> historicalRecords = mHistoricalRecords;
historicalRecords.clear();
while (true) {
type = parser.next();
if (type == XmlPullParser.END_DOCUMENT) {
break;
}
if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
continue;
}
String nodeName = parser.getName();
if (!TAG_HISTORICAL_RECORD.equals(nodeName)) {
throw new XmlPullParserException("Share records file not well-formed.");
}
String activity = parser.getAttributeValue(null, ATTRIBUTE_ACTIVITY);
final long time = Long.parseLong(parser.getAttributeValue(null, ATTRIBUTE_TIME));
final float weight = Float.parseFloat(parser.getAttributeValue(null, ATTRIBUTE_WEIGHT));
HistoricalRecord readRecord = new HistoricalRecord(activity, time, weight);
historicalRecords.add(readRecord);
if (DEBUG) {
Log.i(LOG_TAG, "Read " + readRecord.toString());
}
}
if (DEBUG) {
Log.i(LOG_TAG, "Read " + historicalRecords.size() + " historical records.");
}
} catch (XmlPullParserException xppe) {
Log.e(LOG_TAG, "Error reading historical recrod file: " + mHistoryFileName, xppe);
} catch (IOException ioe) {
Log.e(LOG_TAG, "Error reading historical recrod file: " + mHistoryFileName, ioe);
} finally {
if (fis != null) {
try {
fis.close();
} catch (IOException ioe) {
/* ignore */
}
}
}
}