Example usage for com.google.gson JsonElement isJsonNull

List of usage examples for com.google.gson JsonElement isJsonNull

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Introduction

In this page you can find the example usage for com.google.gson JsonElement isJsonNull.

Prototype

public boolean isJsonNull()

Source Link

Document

provides check for verifying if this element represents a null value or not.

Usage

From source file:com.bizosys.dataservice.sql.KVPairsSerde.java

License:Apache License

public static final void deserJson(final String jsonStr, final Map<String, String> container) {

    if (StringUtils.isEmpty(jsonStr))
        return;//w ww .  j a  v a2s .com

    Gson gson = new Gson();
    JsonElement jsonElem = gson.fromJson(jsonStr, JsonElement.class);
    JsonObject jsonObj = jsonElem.getAsJsonObject();

    if (!jsonObj.has("variables"))
        return;

    Iterator<JsonElement> variablesIterator = jsonObj.get("variables").getAsJsonArray().iterator();

    while (variablesIterator.hasNext()) {
        JsonObject variableObj = (JsonObject) variablesIterator.next();

        if (variableObj.has("key") && variableObj.has("value")) {
            String varKey = variableObj.get("key").getAsString();
            JsonElement obj = variableObj.get("value");
            String varVal = (obj.isJsonNull()) ? null : obj.getAsString();
            container.put(varKey, varVal);
        }
    }
    if (LOG.isDebugEnabled())
        LOG.debug("Parsed variables are : " + container.toString());
}

From source file:com.bzcentre.dapiPush.MeetingPayload.java

License:Open Source License

private Object extractAps(JsonElement in) {
    if (in == null || in.isJsonNull())
        return null;

    if (in.isJsonArray()) {
        List<Object> list = new ArrayList<>();
        JsonArray arr = in.getAsJsonArray();
        for (JsonElement anArr : arr) {
            list.add(extractAps(anArr));
        }/*from   w  w  w  .  ja v  a  2  s.  c  om*/
        return list;
    } else if (in.isJsonObject()) {
        Map<String, Object> map = new LinkedTreeMap<>();
        JsonObject obj = in.getAsJsonObject();
        Set<Map.Entry<String, JsonElement>> entitySet = obj.entrySet();
        for (Map.Entry<String, JsonElement> entry : entitySet) {
            map.put(entry.getKey(), extractAps(entry.getValue()));
            NginxClojureRT.log.debug(TAG + entry.getKey() + "=>" + map.get(entry.getKey()) + "=>"
                    + map.get(entry.getKey()).getClass().getTypeName());
            switch (entry.getKey()) {
            case "dapi":
                this.setDapi(map.get(entry.getKey()));
                break;
            case "acme1":
                this.setAcme1(map.get(entry.getKey()));
                break;
            case "acme2":
                this.setAcme2(map.get(entry.getKey()));
                break;
            case "acme3":
                this.setAcme3(map.get(entry.getKey()));
                break;
            case "acme4":
                this.setAcme4(map.get(entry.getKey()));
                break;
            case "acme5":
                this.setAcme5(map.get(entry.getKey()));
                break;
            case "acme6":
                this.setAcme6(map.get(entry.getKey()));
                break;
            case "acme7":
                this.setAcme7(map.get(entry.getKey()));
                break;
            case "acme8":
                this.setAcme8(map.get(entry.getKey()));
                break;
            case "aps":
                NginxClojureRT.log.debug(TAG + "aps initialized");
                break;
            case "badge":
                this.getAps().setBadge(map.get(entry.getKey()));
                break;
            case "sound":
                this.getAps().setSound(map.get(entry.getKey()));
                break;
            case "alert":
                NginxClojureRT.log.debug(TAG + "alert initialized");
                break;
            case "title":
                this.getAps().getAlert().setTitle(map.get(entry.getKey()));
                break;
            case "body":
                this.getAps().getAlert().setBody(map.get(entry.getKey()));
                break;
            case "action-loc-key":
                this.getAps().getAlert().setActionLocKey(map.get(entry.getKey()));
                break;
            default:
                NginxClojureRT.log.info(TAG + "Unhandled field : " + entry.getKey());
                break;
            }
        }
        return map;
    } else if (in.isJsonPrimitive()) {
        JsonPrimitive prim = in.getAsJsonPrimitive();
        if (prim.isBoolean()) {
            return prim.getAsBoolean();
        } else if (prim.isString()) {
            return prim.getAsString();
        } else if (prim.isNumber()) {
            Number num = prim.getAsNumber();
            // here you can handle double int/long values
            // and return any type you want
            // this solution will transform 3.0 float to long values
            if (Math.ceil(num.doubleValue()) == num.longValue()) {
                return num.longValue();
            } else {
                return num.doubleValue();
            }
        }
    }
    NginxClojureRT.log.info("Handling json null");
    return null;
}

From source file:com.ca.dvs.utilities.raml.RamlUtil.java

License:Open Source License

/**
 * @param jsonString/*from ww  w.ja  v a2  s  . c  om*/
 * @return the appropriate JsonElement object from the parsed jsonString
 */
private static Object getJsonElementValue(String jsonString) {

    JsonParser jsonParser = new JsonParser();
    JsonElement jsonElement = jsonParser.parse(jsonString);

    if (jsonElement.isJsonObject()) {

        return jsonElement.getAsJsonObject();

    } else if (jsonElement.isJsonArray()) {

        return jsonElement.getAsJsonArray();

    } else if (jsonElement.isJsonNull()) {

        return jsonElement.getAsJsonNull();

    } else if (jsonElement.isJsonPrimitive()) {

        return jsonElement.getAsJsonPrimitive();

    } else {

        return null;

    }
}

From source file:com.canoo.dolphin.impl.codec.ValueEncoder.java

License:Apache License

static Object decodeValue(JsonElement jsonElement) {
    if (jsonElement == null || jsonElement.isJsonNull()) {
        return null;
    }//from  www .j  av a  2  s .  c  o  m
    if (!jsonElement.isJsonPrimitive()) {
        throw new JsonParseException("Illegal JSON detected");
    }
    final JsonPrimitive value = (JsonPrimitive) jsonElement;

    if (value.isString()) {
        return value.getAsString();
    } else if (value.isBoolean()) {
        return value.getAsBoolean();
    } else if (value.isNumber()) {
        return value.getAsNumber();
    }
    throw new JsonParseException("Currently only String, Boolean, or Number are allowed as primitives");
}

From source file:com.ccc.crest.core.cache.crest.schema.option.CcpType.java

License:Open Source License

@Override
public CcpType deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    Iterator<Entry<String, JsonElement>> objectIter = ((JsonObject) json).entrySet().iterator();
    while (objectIter.hasNext()) {
        Entry<String, JsonElement> objectEntry = objectIter.next();
        String key = objectEntry.getKey();
        JsonElement value = objectEntry.getValue();
        if (DescriptionKey.equals(key))
            description = checkNull(value);
        else if (OptionalKey.equals(key))
            optional = value.getAsBoolean();
        else if (ExtraKey.equals(key)) {
            JsonElement objectElement = objectEntry.getValue();
            if (objectElement.isJsonArray()) {
                int size = ((JsonArray) objectElement).size();
                for (int i = 0; i < size; i++) {
                    JsonElement childElement = ((JsonArray) objectElement).get(i);
                    extraData.add(childElement.getAsString());
                }/*from   w w w.j av a2  s  .  c  om*/
            } else
                extraData.add(checkNull(value));

        } else if (SubContentKey.equals(key)) {
            if (!value.isJsonNull()) {
                Iterator<Entry<String, JsonElement>> varsIter = ((JsonObject) value).entrySet().iterator();
                do {
                    if (!varsIter.hasNext())
                        break;
                    Entry<String, JsonElement> varsEntry = varsIter.next();
                    CcpType subContent = new CcpType(varsEntry.getKey());
                    subContent = subContent.deserialize(varsEntry.getValue(), typeOfT, context);
                    children.add(subContent);
                } while (true);
            }
        } else if (PrettyTypeKey.equals(key))
            typePrettyName = checkNull(value);
        else if (TypeKey.equals(key))
            type = checkNull(value);
        else
            LoggerFactory.getLogger(getClass())
                    .warn(key + " has a field not currently being handled: \n" + objectEntry.toString());
    }
    return this;
}

From source file:com.ccc.crest.core.cache.crest.schema.option.CcpType.java

License:Open Source License

private String checkNull(JsonElement value) {
    if (value.isJsonNull())
        return null;
    if (NullValue.equals(value.getAsString()))
        return null;
    return value.getAsString();
}

From source file:com.ccreanga.bitbucket.rest.client.http.responseparsers.ListParser.java

License:Apache License

@Override
public List<T> apply(JsonElement json) {
    if ((json == null) || (json.isJsonNull())) {
        return Collections.emptyList();
    } else {/*from ww w .j  a  va 2  s. c om*/
        return StreamSupport.stream(json.getAsJsonArray().spliterator(), false).map(parseFunction)
                .collect(Collectors.toList());
    }
}

From source file:com.ccreanga.bitbucket.rest.client.http.responseparsers.ParserUtil.java

License:Apache License

public static boolean optionalJsonBoolean(JsonObject json, String name) {
    JsonElement element = json.get(name);
    if ((element == null) || (element.isJsonNull()))
        return false;
    return element.getAsBoolean();
}

From source file:com.ccreanga.bitbucket.rest.client.http.responseparsers.ParserUtil.java

License:Apache License

public static long optionalJsonLong(JsonObject json, String name) {
    JsonElement element = json.get(name);
    if ((element == null) || (element.isJsonNull()))
        return -1;
    return element.getAsLong();
}

From source file:com.ccreanga.bitbucket.rest.client.http.responseparsers.ParserUtil.java

License:Apache License

public static String optionalJsonString(JsonObject json, String name) {
    JsonElement element = json.get(name);
    if ((element == null) || (element.isJsonNull()))
        return null;
    return element.getAsString();
}