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:cl.uai.client.data.AjaxRequest.java

License:Open Source License

/**
 * Assuming a json string (PHP json_encode() format), it transforms the string to a JSONObject.
 * @param Json string to parse.//  ww  w . j av a  2s  .c  o m
 * @param Header of the string (this fix the json_encode() PHP format).
 * @param Numeric key of the json collection to get the values.
 * @param 
 * @return a string value of defined key
 */

public static List<Map<String, String>> getValuesFromJsonString(String json, String header) {

    //Defining output
    List<Map<String, String>> output = new ArrayList<Map<String, String>>();
    //Define keys to get from the markers json array
    List<String> markersKeys = Arrays.asList("id", "username", "firstname", "lastname");

    //fix the json format for JSONObject to understand it
    String jsonString = "{\"" + header + "\":" + json + "}";
    //Set json string as a JSONValue
    JSONValue markersValue = JSONParser.parseStrict(jsonString);
    JSONObject markersObject;
    JSONArray markersArray;
    JSONString jsonStringOutput;
    //Object checking
    if ((markersObject = markersValue.isObject()) == null) {
        logger.severe("Error parsing the JSONObject");
    }
    //Array checking
    markersValue = markersObject.get(header);
    if ((markersArray = markersValue.isArray()) == null) {
        logger.severe("Error parsing the JSONArray");
    }
    //Loop for getting each marker info, creating markers info array
    for (int i = 0; i < markersArray.size(); i++) {
        Map<String, String> obj = new HashMap<String, String>();
        //Object checking for defined numeric key of the array
        markersValue = markersArray.get(i);
        if ((markersObject = markersValue.isObject()) == null) {
            logger.severe("Error parsing the JSONValue");
        }
        //String checking for "id", "username", "firstname", "lastname"
        //Loop for getting the info values for each marker
        for (int j = 0; j < markersKeys.size(); j++) {
            markersValue = markersObject.get(markersKeys.get(j).toString());
            if ((jsonStringOutput = markersValue.isString()) == null) {
                logger.severe("Error parsing the JSONString");
            }
            obj.put(markersKeys.get(j).toString(), jsonStringOutput.stringValue());
        }
        output.add(obj);
    }
    //Return markers array output

    return output;
}

From source file:colt.json.gwt.client.JsonClient.java

License:Apache License

public void invoke(final String _url, final String _serviceName, String requestData, final IAsyncJSON result) {
    try {//from  w w w  . j  a  v a  2s .  c o  m
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST,
                URL.encode(_url + _serviceName));
        requestBuilder.setHeader("content-type", "application/x-www-form-urlencoded");

        Request request = requestBuilder.sendRequest(requestData, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                result.error(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    String text = response.getText();
                    JSONValue parser = JSONParser.parse(text);
                    JSONObject jobj = parser.isObject();
                    result.done(jobj);
                } else {
                    result.error(new RuntimeException(_url + _serviceName + " :("));
                }
            }
        });
    } catch (RequestException e) {
        Window.alert(e.getMessage());
        result.error(e);
    }
}

From source file:com.ait.lienzo.client.core.image.filter.AbstractImageDataFilter.java

License:Open Source License

protected AbstractImageDataFilter(JSONObject node, ValidationContext ctx) throws ValidationException {
    m_type = ClassUtils.getSimpleName(getClass());

    if (null == node) {
        m_attr = new Attributes(this);

        m_meta = new MetaData();

        return;//  ww  w .j  a  v a  2  s.  c  o m
    }
    JSONValue aval = node.get("attributes");

    if (null == aval) {
        m_attr = new Attributes(this);
    } else {
        JSONObject aobj = aval.isObject();

        if (null == aobj) {
            m_attr = new Attributes(this);
        } else {
            JavaScriptObject ajso = aobj.getJavaScriptObject();

            if (null == ajso) {
                m_attr = new Attributes(this);
            } else {
                m_attr = new Attributes(ajso, this);
            }
        }
    }
    JSONValue mval = node.get("meta");

    if (null == mval) {
        m_meta = new MetaData();
    } else {
        JSONObject mobj = mval.isObject();

        if (null == mobj) {
            m_meta = new MetaData();
        } else {
            JavaScriptObject mjso = mobj.getJavaScriptObject();

            if (null == mjso) {
                m_meta = new MetaData();
            } else {
                NFastStringMapMixedJSO jso = mjso.cast();

                m_meta = new MetaData(jso);
            }
        }
    }
}

From source file:com.ait.lienzo.client.core.palette.AbstractPaletteBase.java

License:Open Source License

protected AbstractPaletteBase(final PaletteType type, final JSONObject node, final ValidationContext ctx)
        throws ValidationException {
    m_type = type;//w  w  w. j  a  va2s.  c  om

    if (null == node) {
        m_attr = new Attributes(this);

        m_meta = new MetaData();

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

    if (null == aval) {
        m_attr = new Attributes(this);
    } else {
        JSONObject aobj = aval.isObject();

        if (null == aobj) {
            m_attr = new Attributes(this);
        } else {
            JavaScriptObject ajso = aobj.getJavaScriptObject();

            if (null == ajso) {
                m_attr = new Attributes(this);
            } else {
                m_attr = new Attributes(ajso, this);
            }
        }
    }
    JSONValue mval = node.get("meta");

    if (null == mval) {
        m_meta = new MetaData();
    } else {
        JSONObject mobj = mval.isObject();

        if (null == mobj) {
            m_meta = new MetaData();
        } else {
            JavaScriptObject mjso = mobj.getJavaScriptObject();

            if (null == mjso) {
                m_meta = new MetaData();
            } else {
                NObjectJSO jso = mjso.cast();

                m_meta = new MetaData(jso);
            }
        }
    }
}

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

License:Open Source License

/**
 * Parses the JSON string and returns the IJSONSerializable.
 * If validate is true, it will attempt to validate the attributes and types of child nodes etc.
 * If validate is false, it assumes the JSON string is correct
 * (this is a little faster.)//from  ww w.jav a  2  s  .c  o  m
 * 
 * @param string JSON string as produced by {@link IJSONSerializable#toJSONString()}
 * @param validate Whether to validate the attributes and child node types
 * @return IJSONSerializable
 */
public final IJSONSerializable<?> fromString(String string, boolean validate) {
    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 {
        ValidationContext ctx = new ValidationContext();

        ctx.setValidate(validate);

        ctx.setStopOnError(true); // bail if an error is encountered

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

From source file:com.ait.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 w ww  .ja v a  2  s  .co  m
 * 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) {
    try {
        ctx.push("fromString");

        if ((null == string) || (string = string.trim()).isEmpty()) {
            ctx.addError("NULL JSON String");

            return null;
        }
        JSONValue value = JSONParser.parseStrict(string);

        if (null == value) {
            ctx.addError("NULL from JSONParser");

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

        if (null == json) {
            ctx.addError("Result is not a JSONObject");

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

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

License:Open Source License

protected final void validateAttributes(JSONObject json, IFactory<?> factory, String type,
        ValidationContext ctx) throws ValidationException {
    JSONValue aval = json.get("attributes");

    if (null == aval) {
        return; // OK - 'attributes' is optional
    }/*from w  w w .  ja va2  s.c  o m*/
    ctx.push("attributes");

    JSONObject aobj = aval.isObject();

    if (aobj == null) {
        ctx.addBadTypeError("Object");

        return;
    } else {
        // Make sure all required attributes are defined (and not null)

        Set<String> keys = aobj.keySet();

        for (Attribute attr : factory.getRequiredAttributes()) {
            String attrName = attr.getProperty();

            ctx.push(attrName);

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

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

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

            AttributeType atyp = factory.getAttributeType(attrName);

            if (atyp == null) {
                ctx.addInvalidAttributeError(type);
            } else {
                atyp.validate(aobj.get(attrName), ctx);
            }
            ctx.pop(); // attrName
        }
    }
    ctx.pop(); // attributes
}

From source file:com.ait.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   ww w  .ja  va  2s .  c om*/
 * You should only call this when you're writing your own {@link IContainer} class
 * and you're building a custom {@link IFactory}.
 * 
 * @param container IContainer
 * @param node parent JSONObject
 * @param factory IContainerFactory
 * @param ctx ValidationContext
 * @throws ValidationException
 */

public final void deserializeChildren(IContainer<?, ?> container, JSONObject node, IContainerFactory factory,
        ValidationContext ctx) throws ValidationException {
    JSONValue jsonvalu = node.get("children");

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

    JSONArray array = jsonvalu.isArray();

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

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

            jsonvalu = array.get(i);

            JSONObject object = jsonvalu.isObject();

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

                if (null != serial) {
                    if (serial instanceof Node) {
                        if (false == factory.addNodeForContainer(container, (Node<?>) serial, ctx)) {
                            ;
                        }
                    } else {
                        ctx.addBadTypeError("Node");
                    }
                }
            }
            ctx.pop(); // index
        }
    }
    ctx.pop(); // children
}

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

License:Open Source License

public final void deserializeFilters(ImageDataFilterable<?> filterable, JSONObject node, ValidationContext ctx)
        throws ValidationException {
    JSONValue jsonvalu = node.get("filters");

    if (null == jsonvalu) {
        return; // OK - 'children' is optional
    }//from  w w  w  .  j a  va 2  s  .co m
    ctx.push("filters");

    JSONArray array = jsonvalu.isArray();

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

        ArrayList<ImageDataFilter<?>> list = new ArrayList<ImageDataFilter<?>>(size);

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

            jsonvalu = array.get(i);

            JSONObject object = jsonvalu.isObject();

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

                if (null != serial) {
                    if (serial instanceof ImageDataFilter) {
                        list.add((ImageDataFilter<?>) serial);
                    } else {
                        ctx.addBadTypeError("ImageDataFilter");
                    }
                }
            }
            ctx.pop(); // index
        }
        filterable.setFilters(list);
    }
    ctx.pop(); // children
}

From source file:com.ait.lienzo.client.core.shape.json.validators.BehaviorMapValidator.java

License:Open Source License

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

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

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

        if (keys.isEmpty()) {
            ctx.addBadTypeError("BoundingBox no keys");

            return;
        }
        for (String ikey : keys) {
            if ((null == ikey) || (ikey.trim().isEmpty())) {
                ctx.addBadTypeError("BoundingBox bad key");

                return;
            }
            jval = jobj.get(ikey);

            if (null == jval) {
                ctx.addBadTypeError("BoundingBox no array");

                return;
            }
            JSONArray jarr = jval.isArray();

            if (null == jarr) {
                ctx.addBadTypeError("BoundingBox not array");

                return;
            }
            if (jarr.size() < 2) {
                ctx.addBadArraySizeError(2, jarr.size());

                return;
            }
            BoundingBoxArrayValidator.INSTANCE.validate(jarr, ctx);
        }
    }
}