Example usage for com.google.gwt.json.client JSONValue isNull

List of usage examples for com.google.gwt.json.client JSONValue isNull

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Introduction

In this page you can find the example usage for com.google.gwt.json.client JSONValue isNull.

Prototype

public JSONNull isNull()

Source Link

Document

Returns a non-null reference if this JSONValue is really a JSONNull.

Usage

From source file:com.hiramchirino.restygwt.client.AbstractJsonEncoderDecoder.java

License:Apache License

static public <Type> List<Type> toList(JSONValue value, AbstractJsonEncoderDecoder<Type> encoder) {
    if (value == null || value.isNull() != null) {
        return null;
    }//from  www  .  j a v a 2 s.  com
    JSONArray array = value.isArray();
    if (array == null) {
        throw new DecodingException("Expected a json array, but was given: " + value);
    }

    ArrayList<Type> rc = new ArrayList<Type>(array.size());
    int size = array.size();
    for (int i = 0; i < size; i++) {
        rc.add(encoder.decode(array.get(i)));
    }
    return rc;
}

From source file:com.hiramchirino.restygwt.client.AbstractJsonEncoderDecoder.java

License:Apache License

static public <Type> Set<Type> toSet(JSONValue value, AbstractJsonEncoderDecoder<Type> encoder) {
    if (value == null || value.isNull() != null) {
        return null;
    }//from w ww  . j  a va2 s  .co m
    JSONArray array = value.isArray();
    if (array == null) {
        throw new DecodingException("Expected a json array, but was given: " + value);
    }

    HashSet<Type> rc = new HashSet<Type>(array.size() * 2);
    int size = array.size();
    for (int i = 0; i < size; i++) {
        rc.add(encoder.decode(array.get(i)));
    }
    return rc;
}

From source file:com.hiramchirino.restygwt.client.AbstractJsonEncoderDecoder.java

License:Apache License

static public <Type> Map<String, Type> toMap(JSONValue value, AbstractJsonEncoderDecoder<Type> encoder,
        Style style) {// ww w . j av a2  s  . c  o  m
    if (value == null || value.isNull() != null) {
        return null;
    }

    switch (style) {
    case DEFAULT:
    case SIMPLE: {
        JSONObject object = value.isObject();
        if (object == null) {
            throw new DecodingException("Expected a json object, but was given: " + value);
        }

        HashMap<String, Type> rc = new HashMap<String, Type>(object.size() * 2);
        for (String key : object.keySet()) {
            rc.put(key, encoder.decode(object.get(key)));
        }
        return rc;
    }
    case JETTISON_NATURAL: {
        JSONObject object = value.isObject();
        if (object == null) {
            throw new DecodingException("Expected a json object, but was given: " + value);
        }
        value = object.get("entry");
        if (value == null) {
            throw new DecodingException("Expected an entry array not found");
        }
        JSONArray entries = value.isArray();
        if (entries == null) {
            throw new DecodingException("Expected an entry array, but was given: " + value);
        }

        HashMap<String, Type> rc = new HashMap<String, Type>(object.size() * 2);
        for (int i = 0; i < entries.size(); i++) {
            JSONObject entry = entries.get(i).isObject();
            if (entry == null)
                throw new DecodingException("Expected an entry object, but was given: " + value);
            JSONValue key = entry.get("key");
            if (key == null)
                throw new DecodingException("Expected an entry key field not found");
            JSONString k = key.isString();
            if (k == null)
                throw new DecodingException("Expected an entry key to be a string, but was given: " + value);

            rc.put(k.stringValue(), encoder.decode(entry.get("value")));
        }
        return rc;
    }
    default:
        throw new UnsupportedOperationException("The encoding style is not yet suppored: " + style.name());
    }
}

From source file:com.hunchee.haystack.client.utils.JsonConverter.java

License:Open Source License

protected static List<Object> decodeToList(JSONArray array) {
    List<Object> list = new ArrayList<Object>();
    for (int i = 0; i < array.size(); i++) {
        JSONValue v = array.get(i);
        if (v.isObject() != null) {
            list.add(decode(v.isObject()));
        } else if (v.isArray() != null) {
            list.add(decodeToList(v.isArray()));
        } else if (v.isNull() != null) {
            list.add(null);//from  w  ww .j  a v  a2s  .c o m
        } else if (v.isNumber() != null) {
            list.add(v.isNumber().doubleValue());
        } else if (v.isBoolean() != null) {
            list.add(v.isBoolean().booleanValue());
        } else if (v.isString() != null) {
            //                list.add(decodeValue(v.isString().stringValue()));
            list.add(v.isString().stringValue());
        }
    }

    return list;
}

From source file:com.jythonui.client.util.ParseJ.java

License:Apache License

private static ListOfRows toS(RowIndex rI, String s) {
    ListOfRows r = new ListOfRows();

    JSONObject jo = (JSONObject) JSONParser.parseStrict(s);
    JSONArray a = (JSONArray) jo.get(IConsts.JSONROWLIST);
    for (int i = 0; i < a.size(); i++) {
        RowContent ro = rI.constructRow();
        JSONObject val = (JSONObject) a.get(i);
        for (FieldItem fi : rI.getColList()) {
            JSONValue v = val.get(fi.getId());
            FieldValue vall = new FieldValue();
            if (v.isNull() == JSONNull.getInstance())
                vall.setValue(fi.getFieldType(), null, fi.getAfterDot());
            else/*from w ww  .  j  av a 2 s  . c o  m*/
                switch (fi.getFieldType()) {
                case BOOLEAN:
                    JSONBoolean b = (JSONBoolean) v;
                    vall.setValue(b.booleanValue());
                    break;
                case DATE:
                    break;
                case BIGDECIMAL:
                    JSONNumber jn = (JSONNumber) v;
                    vall.setValue(new BigDecimal(jn.doubleValue()), fi.getAfterDot());
                    break;
                case INT:
                    JSONNumber ji = (JSONNumber) v;
                    vall.setValue(new Double(ji.doubleValue()).intValue());
                    break;
                case LONG:
                    JSONNumber jl = (JSONNumber) v;
                    vall.setValue(new Double(jl.doubleValue()).longValue());
                    break;
                default:
                    JSONString js = (JSONString) v;
                    vall.setValue(js.stringValue());
                    break;
                }
            rI.setRowField(ro, fi.getId(), vall);
        }
        r.addRow(ro);
    }

    return r;
}

From source file:com.kk_electronic.kkportal.core.rpc.JsonEncoder.java

License:Open Source License

public <T> T validate(JSONValue result, T resultType, List<Class<?>> subtypes) throws UnableToDeserialize {
    if (!(result instanceof JSONValue))
        throw new UnableToDeserialize("result must not be null");
    if (subtypes == null || subtypes.size() == 0)
        throw new UnableToDeserialize("Subtypes must not be null or empty");
    if (result.isNull() != null)
        return null;
    JsonValue<T> jsonValue = find(subtypes.remove(0), resultType);
    if (jsonValue == null) {
        throw new UnableToDeserialize("Could not find deserializer for " + subtypes.get(0));
    }/*from w ww . j ava  2s . c o m*/
    return jsonValue.fromJson(result, subtypes, this);
}

From source file:com.kk_electronic.kkportal.core.rpc.jsonformat.JsonDate.java

License:Open Source License

@Override
public Date fromJson(JSONValue jsonValue, List<Class<?>> subtypes, FrameEncoder<JSONValue> encoder)
        throws UnableToDeserialize {
    if (jsonValue.isNull() != null)
        return null;
    if (jsonValue.isNumber() == null)
        throw new UnableToDeserialize("Expected Json Number");
    JSONNumber o = jsonValue.isNumber();
    return new Date((long) (o.doubleValue()));
}

From source file:com.kk_electronic.kkportal.core.rpc.jsonformat.JsonString.java

License:Open Source License

@Override
public String fromJson(JSONValue jsonValue, List<Class<?>> subtypes, FrameEncoder<JSONValue> encoder)
        throws UnableToDeserialize {
    if (jsonValue.isNull() != null)
        return null;
    JSONString jsonString = jsonValue.isString();
    if (jsonString == null)
        throw new UnableToDeserialize("Expected json String");
    return jsonString.stringValue();
}

From source file:com.kk_electronic.kkportal.core.rpc.jsonformat.JsonTimeEntry.java

License:Open Source License

@Override
public TimeEntry fromJson(JSONValue jsonValue, List<Class<?>> subtypes, FrameEncoder<JSONValue> encoder)
        throws UnableToDeserialize {
    if (jsonValue.isNull() != null)
        return null;
    if (jsonValue.isObject() == null)
        throw new UnableToDeserialize("Expected Json Object");
    JSONObject o = jsonValue.isObject();

    Long checkin = null;/*from   ww  w .  j a  va 2  s  .  c om*/
    Long checkout = null;
    Integer taskid = null;
    Integer id = null;
    checkin = encoder.validate(o.get("checkin"), checkin, new Class<?>[] { Long.class });
    checkout = encoder.validate(o.get("checkout"), checkout, new Class<?>[] { Long.class });
    taskid = encoder.validate(o.get("taskId"), taskid, new Class<?>[] { Integer.class });
    id = encoder.validate(o.get("id"), id, new Class<?>[] { Integer.class });
    TimeEntry t = new TimeEntry(checkin, checkout, taskid);
    t.setId(id);
    return t;
}

From source file:com.kk_electronic.kkportal.core.rpc.SimpleEncoder.java

License:Open Source License

private static Object convert(JSONValue y, ObjectHelper objectHelper) {
    if (y.isArray() != null)
        return convert(y.isArray(), objectHelper);
    if (y.isObject() != null)
        return convert(y.isObject(), objectHelper);
    if (y.isBoolean() != null)
        return y.isBoolean().booleanValue();
    if (y.isString() != null)
        return y.isString().stringValue();
    if (y.isNumber() != null)
        return y.isNumber().doubleValue();
    if (y.isNull() != null)
        return null;
    throw new RuntimeException("Could not convert");
}