/**
* invokes a service call to get the header information for a single survey
*
* @param serverBase
* @param surveyId
* @return
*/
private ArrayList<Survey> getSurveyHeader(String serverBase, String surveyId, String deviceId) {
String response = null;
ArrayList<Survey> surveys = new ArrayList<Survey>();
try {
response =
HttpUtil.httpGet(
serverBase
+ SURVEY_HEADER_SERVICE_PATH
+ surveyId
+ "&devicePhoneNumber="
+ StatusUtil.getPhoneNumber(this)
+ (deviceId != null
? (DEV_ID_PARAM + URLEncoder.encode(deviceId, "UTF-8"))
: ""));
if (response != null) {
StringTokenizer strTok = new StringTokenizer(response, "\n");
while (strTok.hasMoreTokens()) {
String currentLine = strTok.nextToken();
String[] touple = currentLine.split(",");
if (touple.length < 4) {
Log.e(TAG, "Survey list response is in an unrecognized format");
} else {
Survey temp = new Survey();
temp.setId(touple[0]);
temp.setName(touple[1]);
temp.setLanguage(touple[2]);
temp.setVersion(Double.parseDouble(touple[3]));
temp.setType(ConstantUtil.FILE_SURVEY_LOCATION_TYPE);
surveys.add(temp);
}
}
}
} catch (HttpException e) {
Log.e(TAG, "Server returned an unexpected response", e);
PersistentUncaughtExceptionHandler.recordException(e);
} catch (Exception e) {
Log.e(TAG, "Could not get survey headers", e);
PersistentUncaughtExceptionHandler.recordException(e);
}
return surveys;
}
/**
* Downloads the survey based on the ID and then updates the survey object with the filename and
* location
*/
private boolean downloadSurvey(String serverBase, Survey survey) {
boolean success = false;
try {
HttpUtil.httpDownload(
props.getProperty(ConstantUtil.SURVEY_S3_URL)
+ survey.getId()
+ ConstantUtil.ARCHIVE_SUFFIX,
FileUtil.getFileOutputStream(
survey.getId() + ConstantUtil.ARCHIVE_SUFFIX,
ConstantUtil.DATA_DIR,
props.getProperty(ConstantUtil.USE_INTERNAL_STORAGE),
this));
extractAndSave(
FileUtil.getFileInputStream(
survey.getId() + ConstantUtil.ARCHIVE_SUFFIX,
ConstantUtil.DATA_DIR,
props.getProperty(ConstantUtil.USE_INTERNAL_STORAGE),
this));
survey.setFileName(survey.getId() + ConstantUtil.XML_SUFFIX);
survey.setType(DEFAULT_TYPE);
survey.setLocation(SD_LOC);
success = true;
} catch (IOException e) {
Log.e(TAG, "Could write survey file " + survey.getFileName(), e);
String text = getResources().getString(R.string.cannotupdate);
ViewUtil.fireNotification(text, text, this, FAIL_ID, null);
PersistentUncaughtExceptionHandler.recordException(
new TransferException(survey.getId(), null, e));
} catch (Exception e) {
Log.e(TAG, "Could not download survey " + survey.getId(), e);
String text = getResources().getString(R.string.cannotupdate);
ViewUtil.fireNotification(text, text, this, FAIL_ID, null);
PersistentUncaughtExceptionHandler.recordException(
new TransferException(survey.getId(), null, e));
}
return success;
}
