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

Introduction

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

Prototype

public JSONNumber isNumber()

Source Link

Document

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

Usage

From source file:org.spiffyui.client.JSONUtil.java

License:Apache License

/**
 * Get a java.util.Date from the JSON object as an epoch time in milliseconds
 * or return null if it doesn't exist or
 * cannot be converted from epoch to Date
 * //from   www  . j ava 2s.  com
 * @param obj    the object with the value
 * @param key    the key for the object
 * 
 * @return the value or null it could not be decoded/converted
 */
public static Date getDateValue(JSONObject obj, String key) {
    JSONValue v = obj.get(key);
    if (v != null) {
        JSONNumber n = v.isNumber();
        if (n != null) {
            return new Date(Double.valueOf(n.doubleValue()).longValue());
        } else {
            String s = getStringValue(obj, key);
            if (s != null) {
                return new Date(Long.parseLong(s));
            }
        }
    }

    return null;
}

From source file:org.talend.mdm.webapp.browserecords.client.rest.ExplainRestServiceHandler.java

License:Open Source License

private String getStringValue(JSONValue jsonValue) {
    String value = null;/*from   w  ww .j a v a 2s. com*/
    if (jsonValue != null) {
        if (jsonValue.isString() != null) {
            value = jsonValue.isString().toString().replaceAll("\"", ""); //$NON-NLS-1$ //$NON-NLS-2$
        } else if (jsonValue.isBoolean() != null) {
            value = jsonValue.isBoolean().toString();
        } else if (jsonValue.isNumber() != null) {
            value = jsonValue.isNumber().toString();
        }
    }
    return value;
}

From source file:org.talend.mdm.webapp.browserecords.client.rest.ExplainRestServiceHandler.java

License:Open Source License

private String getScoreValue(JSONValue jsonValue) {
    String value = null;//from   w  ww. j  a  v  a 2  s.  c  o  m
    if (jsonValue != null && jsonValue.isNumber() != null) {
        NumberFormat numberFormat = NumberFormat.getFormat("0.00"); //$NON-NLS-1$
        value = numberFormat.format(jsonValue.isNumber().doubleValue() * 100) + "%"; //$NON-NLS-1$
    }
    return value;
}

From source file:org.thechiselgroup.biomixer.client.json.JsJsonParser.java

License:Apache License

@Override
public String asString(Object jsonValue) {
    if (null == jsonValue) {
        return null;
    }//from ww  w  . j  ava  2 s.c o  m
    JSONValue node = (JSONValue) jsonValue;

    if (node.isString() != null) {
        return node.isString().stringValue();
    }

    if (node.isNumber() != null) {
        return node.isNumber().toString();
    }

    return null;
}

From source file:org.utgenome.gwt.utgb.client.db.datatype.IntegerType.java

License:Apache License

public String toString(JSONValue value) {
    JSONNumber n = value.isNumber();
    if (n != null)
        return Integer.toString((int) n.doubleValue());
    else {//  ww w .  j a  v a  2s .co m
        return super.toString(value);
    }

}

From source file:org.waveprotocol.wave.client.gadget.renderer.GadgetMetadata.java

License:Apache License

/**
 * Helper function to extract a long value from given JSON object.
 *
 * @param json JSON object to extract the value from.
 * @param key key of the value to extract.
 * @return the Long object extracted from JSON (can be null if the value does
 *         not exist or is invalid./*from   w  w w .j av  a  2  s.  c om*/
 */
private static Long getJsonLongValue(JSONObject json, String key) {
    JSONValue value = json.get(key);
    JSONNumber number = (value == null) ? null : value.isNumber();
    if (number != null) {
        return Math.round(number.doubleValue());
    } else {
        return null;
    }
}

From source file:rocket.json.client.JsonSerializer.java

License:Apache License

/**
 * Null safe method to retrieve the double value from a jsonValue which may
 * or may not be a JSONNumber. If its null or not a JSONNumber 0 is
 * returned.//from   w  w  w.  j ava2 s.  c  o  m
 * 
 * @param jsonValue
 * @return
 */
double readDouble(final JSONValue jsonValue) {
    double value = 0;

    while (true) {
        if (null == jsonValue) {
            break;
        }
        final JSONNumber number = jsonValue.isNumber();
        if (null == number) {
            break;
        }

        value = number.getValue();
        break;
    }

    return value;
}

From source file:rpc.client.data.JSONSerializer.java

License:Open Source License

private Object fromJSONValue(JSONValue jsonValue, Type expected) throws NoSuitableSerializableFactory {

    if (jsonValue == null) {
        return null;
    }// w  ww  .  j a v  a2  s . co  m

    // Null
    JSONNull asNull = jsonValue.isNull();
    if (asNull != null) {
        return null;
    }

    // Boolean
    JSONBoolean asBoolean = jsonValue.isBoolean();
    if (asBoolean != null) {
        return asBoolean.booleanValue();
    }

    // Integer
    // Long
    // Float
    // Double
    JSONNumber asNumber = jsonValue.isNumber();
    if (asNumber != null) {
        double value = asNumber.doubleValue();

        if (expected.isInteger()) {
            return (int) value;
        }

        if (expected.isLong()) {
            return (long) value;
        }

        if (expected.isFloat()) {
            return (float) value;
        }

        if (expected.isDouble()) {
            return value;
        }
    }

    // String
    // Enum
    JSONString asString = jsonValue.isString();
    if (asString != null) {
        if (expected.isEnum()) {
            String value = asString.stringValue();
            return Enum.valueOf((Class) expected.getTypeClass(), value);
        } else {
            return asString.stringValue();
        }
    }

    // Map
    // Serializable
    JSONObject asObject = jsonValue.isObject();
    if (asObject != null) {
        if (expected.isMap()) {
            Map<Object, Object> map = new HashMap<Object, Object>();

            Type keyType = expected.getParameterized(0);
            Type valueType = expected.getParameterized(1);

            if (!(keyType.isString() || keyType.isEnum())) {
                return null;
            }

            for (String key : asObject.keySet()) {
                JSONValue value = asObject.get(key);

                if (keyType.isString()) {
                    map.put(key, fromJSONValue(value, valueType));
                }

                if (keyType.isEnum()) {
                    map.put(Enum.valueOf((Class) keyType.getTypeClass(), key), fromJSONValue(value, valueType));
                }
            }

            return map;
        } else {
            if (provider == null) {
                throw new NoSuitableSerializableFactory();
            }

            Serializable object = provider.make(expected);

            for (Map.Entry<String, Type> entry : object.fields().entrySet()) {

                String field = entry.getKey();
                Type fieldType = entry.getValue();

                JSONValue value = asObject.get(field);
                object.set(field, fromJSONValue(value, fieldType));
            }

            return object;
        }
    }

    // List
    JSONArray asArray = jsonValue.isArray();
    if (asArray != null) {
        int size = asArray.size();

        List<Object> list = new ArrayList<Object>();
        Type itemType = expected.getParameterized(0);

        for (int i = 0; i < size; i++) {
            JSONValue value = asArray.get(i);
            list.add(fromJSONValue(value, itemType));
        }

        return list;
    }

    return null;
}

From source file:stroom.util.client.JSONUtil.java

License:Apache License

public static Integer getInteger(final JSONValue v) {
    if (v != null) {
        final JSONNumber jsonNumber = v.isNumber();
        if (jsonNumber != null) {
            return Integer.valueOf((int) jsonNumber.doubleValue());
        }//from w  ww  .j  a  va2  s . com
    }
    return null;
}

From source file:stroom.util.client.JSONUtil.java

License:Apache License

public static Double getDouble(final JSONValue v) {
    if (v != null) {
        final JSONNumber jsonNumber = v.isNumber();
        if (jsonNumber != null) {
            return Double.valueOf(jsonNumber.doubleValue());
        }//from   w  ww  . j a v a  2  s  .com
    }
    return null;
}