private void propertyHourWeekTimeWindow(
JsonNode businessObj, JsonNode checkinInfoObj, String category)
throws JsonGenerationException, JsonMappingException, IOException {
/*
e.g.: checkinInfoObj: {"9-5":1,"7-5":1,"13-3":1,"17-6":1,"13-0":1,"17-3":1,"10-0":1,"18-4":1,"14-6":1}
iterate through checkinInfoObj and get all of the <keyTimeWindow,valueCount> pairs,
and generate the GeoJSONBusinessFeature object of each pair
*/
Iterator<Map.Entry<String, JsonNode>> checkinInfoFields = checkinInfoObj.fields();
while (checkinInfoFields.hasNext()) {
Map.Entry<String, JsonNode> checkinInfoField = checkinInfoFields.next();
String keyTimeWindow = checkinInfoField.getKey();
JsonNode valueCount = checkinInfoField.getValue();
// System.out.println(keyTimeWindow+": "+valueCount);
String wholeKey =
businessObj.get("state").asText()
+ ":"
+ businessObj.get("city").asText()
+ ":"
+ category
+ ":"
+ keyTimeWindow;
String wholeValue = businessObj.get("business_id").asText() + ":" + valueCount.asText();
System.out.println(wholeKey + " <----> " + wholeValue);
ObjectMapper businessCountMapper = new ObjectMapper();
Map<String, String> businessCountMap = new HashMap<String, String>();
businessCountMap.put(businessObj.get("business_id").asText(), valueCount.asText());
String businessCountMapValue = businessCountMapper.writeValueAsString(businessCountMap);
jedis.set(wholeKey, businessCountMapValue);
}
};
private void getStateCityCategoryHourWeekBusinessMapping() throws IOException {
BufferedReader br = new BufferedReader(new FileReader(checkinFilePath));
ObjectMapper checkInMapper = new ObjectMapper();
try {
String line = br.readLine();
while (line != null) {
JsonNode checkInObj = checkInMapper.readTree(line);
line = br.readLine();
// get checkin info for each business_id in yelp_academic_dataset_checkin.json
JsonNode businessID = checkInObj.get("business_id");
String businessInfo = jedis.get(businessID.asText());
if (businessInfo != null) {
// fetch business Info from Redis and map the string result to JSON
ObjectMapper businessInfoMapper = new ObjectMapper();
JsonNode businessObj = businessInfoMapper.readTree(businessInfo);
// Get chech-in info
JsonNode checkinInfoObj = checkInObj.get("checkin_info");
this.propertyCategory(businessObj, checkinInfoObj);
} else {
logWriter.print("\nCan't get info for business " + businessID.asText());
}
}
} finally {
br.close();
}
}
private void propertyCategory(JsonNode businessObj, JsonNode checkinInfoObj) throws IOException {
ObjectMapper categoryListMapper = new ObjectMapper();
JsonFactory categoryListFactory = categoryListMapper.getFactory();
JsonParser categoryListParser =
categoryListFactory.createParser(businessObj.get("categories").toString());
@SuppressWarnings("unchecked")
List<String> categoryList = categoryListMapper.readValue(categoryListParser, List.class);
for (String category : categoryList) {
this.propertyHourWeekTimeWindow(businessObj, checkinInfoObj, category);
}
}