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

Introduction

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

Prototype

public JSONObject isObject() 

Source Link

Document

Returns non-null if this JSONValue is really a JSONObject.

Usage

From source file:com.dimdim.ui.common.client.json.ServerResponseReader.java

License:Open Source License

public ServerResponse readServerResponse(JSONValue value, ServerResponseObjectReader objectReader) {
    ServerResponse resp = null;//ww w . j  a v a2  s  .  c om
    JSONObject obj = value.isObject();
    //Window.alert("ResponseAndEventReader:readResponse value.isObject()?::"+obj);
    if (obj != null) {
        String dataType = "";
        String successStr = "false";
        String codeStr = "0";
        boolean success = false;
        int code = 0;
        String objClass = "";

        if (obj.containsKey(KEY_SUCCESS)) {
            JSONString v = obj.get(KEY_SUCCESS).isString();
            if (v != null) {
                successStr = v.stringValue();
                if (successStr.equals("true") || successStr.equals("false")) {
                    success = (new Boolean(successStr)).booleanValue();
                }
            }
        }
        if (obj.containsKey(KEY_CODE)) {
            JSONString v = obj.get(KEY_CODE).isString();
            if (v != null) {
                codeStr = v.stringValue();
                try {
                    code = (new Integer(codeStr)).intValue();
                } catch (Exception e) {
                    code = 0;
                }
            }
        }
        if (obj.containsKey(KEY_DATA_TYPE)) {
            JSONString v = obj.get(KEY_DATA_TYPE).isString();
            if (v != null) {
                dataType = v.stringValue();
            }
        }
        if (obj.containsKey(KEY_DATA_OBJECT_CLASS)) {
            JSONString v = obj.get(KEY_DATA_OBJECT_CLASS).isString();
            if (v != null) {
                objClass = v.stringValue();
            }
        }
        if (dataType != null && objClass != null) {
            //   Read the object.
            if (obj.containsKey(KEY_DATA)) {
                if (dataType.equals(KEY_VALUE_DATA_TYPE_ARRAY)) {
                    JSONValue v = obj.get(KEY_DATA);
                    JSONArray ary = v.isArray();
                    if (ary != null) {
                        ArrayList vec = readArray(ary, objClass, objectReader);
                        resp = new ServerResponse(success, code, vec);
                    } else {
                        //                     Window.alert("Received null array");
                    }
                } else if (dataType.equals(KEY_VALUE_DATA_TYPE_OBJECT)) {
                    JSONValue v = obj.get(KEY_DATA);
                    JSONObject o = v.isObject();
                    if (o != null) {
                        UIObject uo = objectReader.readServerResponseData(objClass, o);
                        resp = new ServerResponse(success, code, uo);
                    }
                }
            }
        }
        if (resp == null) {
            resp = new ServerResponse(false, -1, "Server response reading failure");
        }
    }
    return resp;
}

---

From source file:com.eduworks.gwt.client.net.packet.AjaxPacket.java

License:Apache License

public JSONObject getObject(String key) {
    JSONValue jv;
    try {//from  ww  w .j a v a 2s .co m
        jv = super.get(key);
    } catch (NullPointerException e) {
        return null;
    }
    if (jv != null && jv.isObject() != null)
        return jv.isObject();
    return null;
}

---

From source file:com.eduworks.gwt.client.net.packet.ESBPacket.java

License:Apache License

@Override
public ESBPacket getObject(String key) {
    JSONValue jv;
    try {/*from   w ww  .j a v a 2 s  . c om*/
        jv = super.get(key);
    } catch (NullPointerException e) {
        return null;
    }
    if (jv != null && jv.isObject() != null)
        return new ESBPacket(jv.isObject());
    return null;
}

---

From source file:com.emitrom.lienzo.client.core.shape.json.JSONDeserializer.java

License:Open Source License

/**
 * Parses the JSON string and returns the IJSONSerializable.
 * Use this method if you need to parse JSON that may contain one or more errors.
 * <pre>//from  ww  w.  jav a  2  s .c  om
 * ValidationContext ctx = new ValidationContext();
 * ctx.setValidate(true);
 * ctx.setStopOnError(false); // find all errors
 * IJSONSerializable<?> node = JSONDeserializer.getInstance().fromString(jsonString, ctx);
 * if (ctx.getErrorCount() > 0)
 * {
 *   Console.log(ctx.getDebugString());
 * }
 * </pre>
 * 
 * @param string JSON string as produced by {@link IJSONSerializable#toJSONString()}
 * @param ctx ValidationContext
 * @return IJSONSerializable
 */
public final IJSONSerializable<?> fromString(String string, ValidationContext ctx) {
    if ((null == string) || (string = string.trim()).isEmpty()) {
        return null;
    }
    JSONValue value = JSONParser.parseStrict(string);

    if (null == value) {
        return null;
    }
    JSONObject json = value.isObject();

    if (null == json) {
        return null;
    }
    try {
        return fromJSON(json, ctx);
    } catch (ValidationException e) {
        return null;
    }
}

---

From source file:com.emitrom.lienzo.client.core.shape.json.JSONDeserializer.java

License:Open Source License

/**
 * Creates the child nodes for a {@link IJSONSerializable} that implements 
 * {@link IContainer} from a JSONObject node.
 * <p>/*from  w  ww . j  a  va 2  s. c o m*/
 * You should only call this when you're writing your own {@link IContainer} class
 * and you're building a custom {@link IFactory}.
 * 
 * @param g IContainer
 * @param node parent JSONObject
 * @param containerFactory IContainerFactory
 * @param ctx ValidationContext
 * @throws ValidationException
 */
@SuppressWarnings("unchecked")
public final void deserializeChildren(@SuppressWarnings("rawtypes") IContainer g, JSONObject node,
        IContainerFactory containerFactory, ValidationContext ctx) throws ValidationException {
    // TODO I couldn't get the template parameters of IContainer to work with
    // GroupFactory and LayerFactory, so I'll use @SuppressWarnings

    JSONValue kidsVal = node.get("children");

    if (kidsVal == null) {
        return; // OK - 'children' is optional
    }
    ctx.push("children");

    JSONArray arr = kidsVal.isArray();

    if (arr == null) {
        ctx.addBadTypeError("Array");
    } else {
        final int size = arr.size();

        for (int i = 0, n = size; i < n; i++) {
            ctx.pushIndex(i);

            JSONValue kidVal = arr.get(i);

            JSONObject kidObj = kidVal.isObject();

            if (kidObj == null) {
                ctx.addBadTypeError("Object");
            } else {
                IJSONSerializable<?> kidNode = fromJSON(kidObj, ctx);

                if (kidNode != null) {
                    if (containerFactory.isValidForContainer(g, kidNode)) {
                        g.add(kidNode);
                    }
                }
            }
            ctx.pop(); // index
        }
    }
    ctx.pop(); // children
}

---

From source file:com.emitrom.lienzo.client.core.shape.json.validators.ObjectValidator.java

License:Open Source License

@Override
public void validate(JSONValue jval, ValidationContext ctx) throws ValidationException {
    if (null == jval) {
        ctx.addBadTypeError("Object");

        return;/*w  w w.  j  a v  a 2  s  .  c  o m*/
    }
    JSONObject jobj = jval.isObject();

    if (null == jobj) {
        ctx.addBadTypeError("Object");
    } else {
        Set<String> keys = jobj.keySet();

        // Check required attributes

        for (String attrName : m_requiredAttributes) {
            ctx.push(attrName);

            if (false == keys.contains(attrName)) {
                ctx.addRequiredError(); // value is missing
            } else {
                JSONValue aval = jobj.get(attrName);

                if ((null == aval) || (null != aval.isNull())) {
                    ctx.addRequiredError(); // value is null
                }
            }
            ctx.pop(); // attrName
        }
        // Now check the attribute values

        for (String attrName : keys) {
            ctx.push(attrName);

            AttributeTypeValidator validator = m_attributes.get(attrName);

            if (null == validator) {
                ctx.addInvalidAttributeError(m_typeName);
            } else {
                JSONValue aval = jobj.get(attrName);

                validator.validate(aval, ctx);
            }
            ctx.pop(); // attrName
        }
    }
}

---

From source file:com.emitrom.lienzo.client.core.shape.Node.java

License:Open Source License

/**
 * Constructor used by deserialization code.
 * /*from w  w w  .  ja v  a 2s  .  c  o m*/
 * @param type
 * @param node
 */
protected Node(NodeType type, JSONObject node) {
    m_type = type;

    if (null == node) {
        m_attr = Attributes.make();

        return;
    }
    JSONValue aval = node.get("attributes");

    if (null == aval) {
        m_attr = Attributes.make();

        return;
    }
    JSONObject aobj = aval.isObject();

    if (null == aobj) {
        m_attr = Attributes.make();

        return;
    }
    JavaScriptObject ajso = aobj.getJavaScriptObject();

    if (null == ajso) {
        m_attr = Attributes.make();

        return;
    }
    m_attr = ajso.cast();

    if (NativeInternalType.BOOLEAN != m_attr.typeOf(Attribute.VISIBLE)) {
        setVisible(true);
    }
    if (NativeInternalType.BOOLEAN != m_attr.typeOf(Attribute.LISTENING)) {
        setListening(true);
    }
}

---

From source file:com.extjs.gxt.ui.client.data.JsonReader.java

License:sencha.com license

@SuppressWarnings({ "unchecked", "rawtypes" })
public D read(Object loadConfig, Object data) {
    JSONObject jsonRoot = null;/*from w w w . j a v  a 2  s .  c o m*/
    if (data instanceof JavaScriptObject) {
        jsonRoot = new JSONObject((JavaScriptObject) data);
    } else {
        jsonRoot = (JSONObject) JSONParser.parse((String) data);
    }
    JSONArray root = (JSONArray) jsonRoot.get(modelType.getRoot());
    int size = root.size();
    ArrayList<ModelData> models = new ArrayList<ModelData>();
    for (int i = 0; i < size; i++) {
        JSONObject obj = (JSONObject) root.get(i);
        ModelData model = newModelInstance();
        for (int j = 0; j < modelType.getFieldCount(); j++) {
            DataField field = modelType.getField(j);
            String name = field.getName();
            Class type = field.getType();
            String map = field.getMap() != null ? field.getMap() : field.getName();
            JSONValue value = obj.get(map);

            if (value == null)
                continue;
            if (value.isArray() != null) {
                // nothing
            } else if (value.isBoolean() != null) {
                model.set(name, value.isBoolean().booleanValue());
            } else if (value.isNumber() != null) {
                if (type != null) {
                    Double d = value.isNumber().doubleValue();
                    if (type.equals(Integer.class)) {
                        model.set(name, d.intValue());
                    } else if (type.equals(Long.class)) {
                        model.set(name, d.longValue());
                    } else if (type.equals(Float.class)) {
                        model.set(name, d.floatValue());
                    } else {
                        model.set(name, d);
                    }
                } else {
                    model.set(name, value.isNumber().doubleValue());
                }
            } else if (value.isObject() != null) {
                // nothing
            } else if (value.isString() != null) {
                String s = value.isString().stringValue();
                if (type != null) {
                    if (type.equals(Date.class)) {
                        if ("timestamp".equals(field.getFormat())) {
                            Date d = new Date(Long.parseLong(s) * 1000);
                            model.set(name, d);
                        } else {
                            DateTimeFormat format = DateTimeFormat.getFormat(field.getFormat());
                            Date d = format.parse(s);
                            model.set(name, d);
                        }
                    }
                } else {
                    model.set(name, s);
                }
            } else if (value.isNull() != null) {
                model.set(name, null);
            }
        }
        models.add(model);
    }
    int totalCount = models.size();
    if (modelType.getTotalName() != null) {
        totalCount = getTotalCount(jsonRoot);
    }
    return (D) createReturnData(loadConfig, models, totalCount);
}

---

From source file:com.extjs.gxt.ui.client.js.JsonConverter.java

License:sencha.com license

/**
 * Decodes a Json string into a map.//  w w  w . j a  va  2  s .c o  m
 * 
 * @param jsonString the Json string
 * @return the map
 */
public static Map<String, Object> decode(String jsonString) {
    JSONValue v = JSONParser.parse(jsonString);
    if (v.isObject() != null) {
        return decode(v.isObject());
    } else {
        return null;
    }
}

---

From source file:com.extjs.gxt.ui.client.js.JsonConverter.java

License:sencha.com license

/**
 * Decodes a JSONObject to a map./* w w w.j  a  v  a2  s . co  m*/
 * 
 * @param jso the JSONObject
 * @return the map
 */
public static Map<String, Object> decode(JSONObject jso) {
    Map<String, Object> map = new FastMap<Object>();
    for (String key : jso.keySet()) {
        JSONValue j = jso.get(key);
        if (j.isObject() != null) {
            map.put(key, decode(j.isObject()));
        } else if (j.isArray() != null) {
            map.put(key, decodeToList(j.isArray()));
        } else if (j.isBoolean() != null) {
            map.put(key, j.isBoolean().booleanValue());
        } else if (j.isString() != null) {
            map.put(key, decodeValue(j.isString().stringValue()));
        }
    }
    return map;
}

---

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