Java Utililty Methods Json Get

boolean getBoolean(JsonObject json, String name)
Returns the value for the specified parameter name included in the specified json object.

return (json != null && json.containsKey(name)) && json.getBoolean(name);

Boolean getBooleanValue(JsonValue value)
Convert a JsonValue into a equivalent Java Boolean.

switch (value.getValueType()) {
case TRUE:
 return true;
case FALSE:
 return false;
default:
 throw new ClassCastException();

JsonBuilderFactory getBuilderFactory()
get Builder Factory

Map<String, Object> config = new HashMap<String, Object>();
return Json.createBuilderFactory(config);

int getInt(JsonObject json, String name)
Returns the value for the specified parameter name included in the specified json object.

return (json != null && json.containsKey(name)) ? json.getInt(name) : -1;

int[] getIntArray(JsonObject object, String name)
get Int Array

return toIntArray(getJsonArray(object, name));

ArrayList getIntegerArrayList(JsonArray array)
get Integer Array List

ArrayList<Integer> res = new ArrayList<Integer>(array.size());
for (JsonValue v : array) {
 res.add(((JsonNumber) v).intValue());
return res;

ArrayList getIntegerArrayListSansDoublons(JsonArray array)
get Integer Array List Sans Doublons

ArrayList<Integer> resDoublons = getIntegerArrayList(array);
HashSet<Integer> set = new HashSet<Integer>(resDoublons.size());
set.addAll(resDoublons);
return new ArrayList<Integer>(set);

JsonArray getJsonArray(JsonObject object, String name)
get Json Array

if (hasKey(object, name)) {
 return object.getJsonArray(name);
return null;

JsonArray getJsonIntArray(Iterable integers)
get Json Int Array

JsonArrayBuilder builder = Json.createArrayBuilder();
for (int i : integers) {
 builder.add(i);
return builder.build();

JsonNumber getJsonNumberOrNull(JsonObject object, String key)
get Json Number Or Null

return object.containsKey(key) && !object.isNull(key) ? object.getJsonNumber(key) : null;