Example usage for com.google.gson JsonElement getAsJsonNull

Introduction

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

Prototype

public JsonNull getAsJsonNull() 

Source Link

Document

convenience method to get this element as a JsonNull .

Usage

From source file:club.jmint.mifty.service.MiftyService.java

License:Apache License

public String callProxy(String method, String params, boolean isEncrypt) throws TException {
    //parse parameters and verify signature
    CrossLog.logger.debug("callProxy: " + method + "(in: " + params + ")");
    JsonObject ip;/*from   ww  w  .j av a  2s  .  com*/
    try {
        ip = parseInputParams(params, isEncrypt);
    } catch (CrossException ce) {
        return buildOutputByCrossException(ce);
    }

    //extract all parameters
    HashMap<String, String> inputMap = new HashMap<String, String>();
    Iterator<Entry<String, JsonElement>> it = ip.entrySet().iterator();
    Entry<String, JsonElement> en = null;
    String key;
    JsonElement je;
    while (it.hasNext()) {
        en = it.next();
        key = en.getKey();
        je = en.getValue();
        if (je.isJsonArray()) {
            inputMap.put(key, je.getAsJsonArray().toString());
            //System.out.println(je.getAsJsonArray().toString());
        } else if (je.isJsonNull()) {
            inputMap.put(key, je.getAsJsonNull().toString());
            //System.out.println(je.getAsJsonNull().toString());
        } else if (je.isJsonObject()) {
            inputMap.put(key, je.getAsJsonObject().toString());
            //System.out.println(je.getAsJsonObject().toString());
        } else if (je.isJsonPrimitive()) {
            inputMap.put(key, je.getAsJsonPrimitive().getAsString());
            //System.out.println(je.getAsJsonPrimitive().toString());
        } else {
            //unkown type;
        }
    }

    //execute specific method
    Method[] ma = this.getClass().getMethods();
    int idx = 0;
    for (int i = 0; i < ma.length; i++) {
        if (ma[i].getName().equals(method)) {
            idx = i;
            break;
        }
    }
    HashMap<String, String> outputMap = null;
    try {
        Method m = this.getClass().getDeclaredMethod(method, ma[idx].getParameterTypes());
        outputMap = (HashMap<String, String>) m.invoke(this, inputMap);
        CrossLog.logger.debug("callProxy: " + method + "() executed.");
    } catch (NoSuchMethodException nsm) {
        CrossLog.logger.error("callProxy: " + method + "() not found.");
        CrossLog.printStackTrace(nsm);
        return buildOutputError(ErrorCode.CROSSING_ERR_INTERFACE_NOT_FOUND.getCode(),
                ErrorCode.CROSSING_ERR_INTERFACE_NOT_FOUND.getInfo());
    } catch (Exception e) {
        CrossLog.logger.error("callProxy: " + method + "() executed with exception.");
        CrossLog.printStackTrace(e);
        if (e instanceof CrossException) {
            return buildOutputByCrossException((CrossException) e);
        } else {
            return buildOutputError(ErrorCode.COMMON_ERR_UNKOWN.getCode(),
                    ErrorCode.COMMON_ERR_UNKOWN.getInfo());
        }
    }
    //if got error then return immediately
    String ec = outputMap.get("errorCode");
    String ecInfo = outputMap.get("errorInfo");
    if ((ec != null) && (!ec.isEmpty())) {
        return buildOutputError(Integer.parseInt(ec), ecInfo);
    }

    //build response parameters
    JsonObject op = new JsonObject();
    Iterator<Entry<String, String>> ito = outputMap.entrySet().iterator();
    Entry<String, String> eno = null;
    JsonParser jpo = new JsonParser();
    JsonElement jeo = null;
    while (ito.hasNext()) {
        eno = ito.next();
        try {
            jeo = jpo.parse(eno.getValue());
        } catch (JsonSyntaxException e) {
            //            MyLog.logger.error("callProxy: Malformed output parameters["+eno.getKey()+"].");
            //            return buildOutputError(ErrorCode.COMMON_ERR_PARAM_MALFORMED.getCode(), 
            //                  ErrorCode.COMMON_ERR_PARAM_MALFORMED.getInfo());
            //we do assume that it should be a common string
            jeo = new JsonPrimitive(eno.getValue());
        }
        op.add(eno.getKey(), jeo);
    }

    String output = null;
    try {
        output = buildOutputParams(op, isEncrypt);
    } catch (CrossException ce) {
        return buildOutputByCrossException(ce);
    }
    CrossLog.logger.debug("callProxy: " + method + "(out: " + output + ")");
    return output;
}

---

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

License:Open Source License

/**
 * @param jsonString//from w  w  w.j a  v  a2s  . c  o m
 * @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:org.debux.webmotion.server.call.ClientSession.java

License:Open Source License

/**
 * Return only JsonElement use getAttribute and getAttributes with class as 
 * parameter to get a value./*www .j  a  va2  s . c om*/
 */
@Override
public Object getAttribute(String name) {
    JsonElement value = attributes.get(name);
    if (value == null) {
        return value;

    } else if (value.isJsonPrimitive()) {
        JsonPrimitive primitive = value.getAsJsonPrimitive();
        if (primitive.isString()) {
            return primitive.getAsString();

        } else if (primitive.isBoolean()) {
            return primitive.getAsBoolean();

        } else if (primitive.isNumber()) {
            return primitive.getAsDouble();
        }

    } else if (value.isJsonArray()) {
        return value.getAsJsonArray();

    } else if (value.isJsonObject()) {
        return value.getAsJsonObject();

    } else if (value.isJsonNull()) {
        return value.getAsJsonNull();
    }
    return value;
}

---

From source file:org.structr.core.PropertySetGSONAdapter.java

License:Open Source License

private Object getTypedValue(JsonElement valueElement, String type) {

    Object value = null;//  w ww.j a v a2s .c  o  m

    if ((type == null) || type.equals("null")) {

        value = valueElement.getAsJsonNull();

    } else if (type.equals("String")) {

        value = valueElement.getAsString();

    } else if (type.equals("Number")) {

        value = valueElement.getAsNumber();

    } else if (type.equals("Boolean")) {

        value = valueElement.getAsBoolean();

    } else if (type.equals("JsonArray")) {

        value = valueElement.getAsJsonArray();

    } else if (type.equals("JsonObject")) {

        value = valueElement.getAsJsonObject();

    } else if (type.equals("Integer")) {

        value = valueElement.getAsInt();

    } else if (type.equals("Long")) {

        value = valueElement.getAsLong();

    } else if (type.equals("Double")) {

        value = valueElement.getAsDouble();

    } else if (type.equals("Float")) {

        value = valueElement.getAsFloat();

    } else if (type.equals("Byte")) {

        value = valueElement.getAsByte();

    } else if (type.equals("Short")) {

        value = valueElement.getAsShort();

    } else if (type.equals("Character")) {

        value = valueElement.getAsCharacter();

    } else if (type.equals("BigDecimal")) {

        value = valueElement.getAsBigDecimal();

    } else if (type.equals("BigInteger")) {

        value = valueElement.getAsBigInteger();

    }

    return value;
}

---