private void initParams(){
		if(!androidParams.isEmpty()){
			postURL = androidParams.getProperty("GOOGLEPLAY_POST_URL");
			reviewType = androidParams.getProperty("GOOGLEPLAY_REVIEW_TYPE");
			fromPageNum = androidParams.getProperty("GOOGLEPLAY_FROM_PAGE_NUM");
			ID = androidParams.getProperty("GOOGLEPLAY_ID");
			reviewSortOrder = androidParams.getProperty("GOOGLEPLAY_REVIEW_SORT_ORDER");
			XHR = androidParams.getProperty("GOOGLEPLAY_XHR");
			outputFilePath = androidParams.getProperty("GOOGLEPLAY_OUTPUTFILE_PATH");
			enablePeriod = Boolean.valueOf(androidParams.getProperty("GOOGLEPLAY_ENABLE_PERIOD"));
			if(this.enablePeriod){
				dateFormat = androidParams.getProperty("GOOGLEPLAY_DATE_FORMAT");
				String startDateStr = androidParams.getProperty("GOOGLEPLAY_START_DATE");
				String endDateStr = androidParams.getProperty("GOOGLEPLAY_END_DATE");
				if(!("".equals(dateFormat) || "".equals(startDateStr) || "".equals(endDateStr))){
					try {
						fmt = new SimpleDateFormat(dateFormat);
						startDate = fmt.parse(startDateStr);
					} catch (ParseException e) {
						this.enablePeriod = false;
						e.printStackTrace();
					}
				}else{
					this.enablePeriod = false;
				}
				
			}
			loginUrl = androidParams.getProperty("GOOGLEPLAY_LOGIN_URL");
		}
	}