Java Utililty Methods Json Get

List of utility methods to do Json Get

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Description

The list of methods to do Json Get are organized into topic(s).

Method

JsonObjectgetJsonObject(JsonObject object, String name)
get Json Object 
if (hasKey(object, name)) {
    return object.getJsonObject(name);
return null;
JsonValuegetJsonValue(String json_path, JsonObject response)
get Json Value 
StringTokenizer tk = new StringTokenizer(json_path, "/");
JsonValue rValue = response;
JsonObject value = response;
while (tk.hasMoreTokens()) {
    String key = tk.nextToken();
    rValue = value.get(key);
    if (rValue == null || (rValue.getValueType() != ValueType.OBJECT)) {
        break;
...
StringgetKeyAsString(JsonObject obj, String key, String defaultValue)
get Key As String 
String value = defaultValue;
if (obj.containsKey(key)) {
    value = obj.get(key).toString();
return value;
longgetLongProperty(JsonObject object, String property)
get Long Property 
return object.getJsonNumber(property).longValue();
JsonWriterFactorygetPrettyJsonWriterFactory()
get Pretty Json Writer Factory 
if (null == FACTORY_INSTANCE) {
    final Map<String, Object> properties = new HashMap<>(1);
    properties.put(JsonGenerator.PRETTY_PRINTING, true);
    FACTORY_INSTANCE = Json.createWriterFactory(properties);
return FACTORY_INSTANCE;
JsonArraygetSitesFromDb(String replicationSitesInDB)
The reason this in JSON is that it probably makes sense to someday query RSAL or some other "big data" component live for a list of remotes sites to which a particular dataset is replicated to. 
JsonArrayBuilder arraybuilder = Json.createArrayBuilder();
if (replicationSitesInDB == null || replicationSitesInDB.isEmpty()) {
    return arraybuilder.build();
String[] sites = replicationSitesInDB.split(",");
for (String site : sites) {
    String[] parts = site.split(":");
    arraybuilder.add(Json.createObjectBuilder().add("fqdn", parts[0]).add("name", parts[1]).add("country",
...
StringgetString(JsonObject jso, String name)
Gets a string value. 
if (jso != null && jso.containsKey(name) && !jso.isNull(name)) {
    JsonValue v = jso.get(name);
    if (v.getValueType().equals(ValueType.STRING)) {
        return jso.getString(name);
    } else if (v.getValueType().equals(ValueType.NUMBER)) {
return null;
...
StringgetValueFromJson(JsonObject currentJsonObject, String key)
get Value From Json 
String result = "";
if (currentJsonObject.containsKey(key)) {
    switch (currentJsonObject.get(key).getValueType()) {
    case STRING:
        result = currentJsonObject.getString(key);
        break;
    case NUMBER:
        result = String.valueOf(currentJsonObject.getInt(key));
...