Example usage for javax.json JsonArray getJsonObject

Introduction

In this page you can find the example usage for javax.json JsonArray getJsonObject.

Prototype

JsonObject getJsonObject(int index);

Source Link

Document

Returns the object value at the specified position in this array.

Usage

From source file:org.optaplanner.examples.conferencescheduling.persistence.ConferenceSchedulingCfpDevoxxImporter.java

private void importTimeslotList() {
    List<Timeslot> timeslotList = new ArrayList<>();
    Map<Timeslot, List<Room>> timeslotToAvailableRoomsMap = new HashMap<>();
    Map<Pair<LocalDateTime, LocalDateTime>, Timeslot> startAndEndTimeToTimeslotMap = new HashMap<>();

    Long timeSlotId = 0L;/*  w w  w  .  j  ava 2 s.c o m*/
    String schedulesUrl = conferenceBaseUrl + "/schedules/";
    LOGGER.debug("Sending a request to: " + schedulesUrl);
    JsonArray daysArray = readJson(schedulesUrl, JsonReader::readObject).getJsonArray("links");
    for (int i = 0; i < daysArray.size(); i++) {
        JsonObject dayObject = daysArray.getJsonObject(i);
        String dayUrl = dayObject.getString("href");

        LOGGER.debug("Sending a request to: " + dayUrl);
        JsonArray daySlotsArray = readJson(dayUrl, JsonReader::readObject).getJsonArray("slots");

        for (int j = 0; j < daySlotsArray.size(); j++) {
            JsonObject timeslotObject = daySlotsArray.getJsonObject(j);

            LocalDateTime startDateTime = LocalDateTime.ofInstant(
                    Instant.ofEpochMilli(timeslotObject.getJsonNumber("fromTimeMillis").longValue()),
                    ZoneId.of(ZONE_ID));
            LocalDateTime endDateTime = LocalDateTime.ofInstant(
                    Instant.ofEpochMilli(timeslotObject.getJsonNumber("toTimeMillis").longValue()),
                    ZoneId.of(ZONE_ID));

            Room room = roomIdToRoomMap.get(timeslotObject.getString("roomId"));
            if (room == null) {
                throw new IllegalStateException("The timeslot (" + timeslotObject.getString("slotId")
                        + ") has a roomId (" + timeslotObject.getString("roomId")
                        + ") that does not exist in the rooms list");
            }

            // Assuming slotId is of format: tia_room6_monday_12_.... take only "tia"
            String talkTypeName = timeslotObject.getString("slotId").split("_")[0];
            TalkType timeslotTalkType = talkTypeNameToTalkTypeMap.get(talkTypeName);
            if (Arrays.asList(IGNORED_TALK_TYPES).contains(talkTypeName)) {
                continue;
            }

            Timeslot timeslot;
            if (startAndEndTimeToTimeslotMap.keySet().contains(Pair.of(startDateTime, endDateTime))) {
                timeslot = startAndEndTimeToTimeslotMap.get(Pair.of(startDateTime, endDateTime));
                timeslotToAvailableRoomsMap.get(timeslot).add(room);
                if (timeslotTalkType != null) {
                    timeslot.getTalkTypeSet().add(timeslotTalkType);
                }
            } else {
                timeslot = new Timeslot(timeSlotId++);
                timeslot.withStartDateTime(startDateTime).withEndDateTime(endDateTime)
                        .withTalkTypeSet(timeslotTalkType == null ? new HashSet<>()
                                : new HashSet<>(Arrays.asList(timeslotTalkType)));
                timeslot.setTagSet(new HashSet<>());

                timeslotList.add(timeslot);
                timeslotToAvailableRoomsMap.put(timeslot, new ArrayList<>(Arrays.asList(room)));
                startAndEndTimeToTimeslotMap.put(Pair.of(startDateTime, endDateTime), timeslot);
            }

            if (!timeslotObject.isNull("talk")) {
                scheduleTalk(timeslotObject, room, timeslot);
            }

            for (TalkType talkType : timeslot.getTalkTypeSet()) {
                talkType.getCompatibleTimeslotSet().add(timeslot);
            }
            timeslotTalkTypeToTotalMap.merge(talkTypeName, 1, Integer::sum);
        }
    }

    for (Room room : solution.getRoomList()) {
        room.setUnavailableTimeslotSet(timeslotList.stream()
                .filter(timeslot -> !timeslotToAvailableRoomsMap.get(timeslot).contains(room))
                .collect(Collectors.toSet()));
    }

    solution.setTimeslotList(timeslotList);
}