Example usage for com.google.gson JsonElement isJsonNull

List of usage examples for com.google.gson JsonElement isJsonNull

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Introduction

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

Prototype

public boolean isJsonNull()

Source Link

Document

provides check for verifying if this element represents a null value or not.

Usage

From source file:org.openmuc.framework.lib.json.FromJson.java

License:Open Source License

public String[] getStringArray(String listName) {

    String stringArray[] = null;/*from www .  ja va2s  . c o m*/

    JsonElement jse = jsonObject.get(listName);
    if (!jse.isJsonNull() && jse.isJsonArray()) {
        stringArray = gson.fromJson(jse, String[].class);
    }
    return stringArray;
}

From source file:org.openmuc.framework.lib.json.FromJson.java

License:Open Source License

public ArrayList<RestChannel> getRestChannelArrayList() throws ClassCastException {

    ArrayList<RestChannel> recordList = new ArrayList<RestChannel>();
    JsonElement jse = jsonObject.get("records");
    JsonArray jsa;/*  w w w .jav a  2  s .  c  o m*/

    if (!jse.isJsonNull() && jse.isJsonArray()) {

        jsa = jse.getAsJsonArray();
        Iterator<JsonElement> jseIterator = jsa.iterator();

        while (jseIterator.hasNext()) {
            RestChannel rc = new RestChannel();
            JsonObject jsoIterated = jseIterator.next().getAsJsonObject();
            rc.setId(jsoIterated.get(Const.ID).getAsString());
            rc.setType(gson.fromJson(jsoIterated.get(Const.TYPE), ValueType.class)); // TODO: need valueType in json
            // or something else
            // otherwise null pointer
            // exception
            rc.setRecord(getRecord(jsoIterated, rc.getType()));

            recordList.add(rc);
        }
    }
    if (recordList.size() == 0) {
        return null;
    }
    return recordList;
}

From source file:org.openmuc.framework.lib.json.FromJson.java

License:Open Source License

private Record getRecord(JsonObject jso, ValueType valueType) throws ClassCastException {

    Record record = null;/*w  w  w  . j  a va2s .  c om*/
    JsonElement jse = jso.get(Const.RECORD);

    if (jse != null && !jse.isJsonNull()) {
        record = getRecord(gson.fromJson(jse, RestRecord.class), valueType);
    }
    return record;
}

From source file:org.openqa.selendroid.server.handler.OpenUrl.java

License:Apache License

@Override
public Response handle() {
    SelendroidLogger.log("Open URL command");
    JsonElement url = getPayload().get("url");
    if (url.isJsonNull()) {
        return new Response(getSessionId(), 13,
                new SelendroidException("Not able to open Url because Url is missing."));
    }//from   ww w . jav  a2 s  .c o  m
    getAndroidDriver().get(url.getAsString());
    return new Response(getSessionId(), "");
}

From source file:org.openqa.selendroid.server.handler.SendKeys.java

License:Apache License

@Override
public Response handle() {
    SelendroidLogger.log("send keys command");
    Long id = getElementId();/*w  ww  .j ava2  s  .c  o m*/
    JsonElement value = getPayload().get("value");
    if (value.isJsonNull()) {
        return new Response(getSessionId(), new SelendroidException("No key to send to an element was found."));
    }
    String text = value.getAsString();

    AndroidElement element = getElementFromCache(id);
    Long start = System.currentTimeMillis();
    element.enterText(text);
    System.out.println("Send keys done in " + (System.currentTimeMillis() - start) / 1000 + " seconds");
    return new Response(getSessionId(), "");
}

From source file:org.openqa.selendroid.server.handler.SendKeyToActiveElement.java

License:Apache License

@Override
public Response handle() {
    SelendroidLogger.log("send key to active element command");
    JsonElement value = getPayload().get("value");
    if (value.isJsonNull()) {
        return new Response(getSessionId(), new SelendroidException("No key to send to an element was found."));
    }/*w w  w . ja  v a2 s. co  m*/
    String text = value.getAsString();

    getAndroidDriver().getKeyboard().sendKeys(text);

    return new Response(getSessionId(), "");
}

From source file:org.openqa.selenium.json.JsonToBeanConverter.java

License:Apache License

@SuppressWarnings("unchecked")
private <T> T convert(Class<T> clazz, Object source, int depth) {
    if (source == null || source instanceof JsonNull) {
        return null;
    }// w w  w.j  a v  a2  s  .co  m

    if (source instanceof JsonElement) {
        JsonElement json = (JsonElement) source;

        if (json.isJsonPrimitive()) {
            JsonPrimitive jp = json.getAsJsonPrimitive();

            if (String.class.equals(clazz)) {
                return (T) jp.getAsString();
            }

            if (jp.isNumber()) {
                if (Integer.class.isAssignableFrom(clazz) || int.class.equals(clazz)) {
                    return (T) Integer.valueOf(jp.getAsNumber().intValue());
                } else if (Long.class.isAssignableFrom(clazz) || long.class.equals(clazz)) {
                    return (T) Long.valueOf(jp.getAsNumber().longValue());
                } else if (Float.class.isAssignableFrom(clazz) || float.class.equals(clazz)) {
                    return (T) Float.valueOf(jp.getAsNumber().floatValue());
                } else if (Double.class.isAssignableFrom(clazz) || double.class.equals(clazz)) {
                    return (T) Double.valueOf(jp.getAsNumber().doubleValue());
                } else {
                    return (T) convertJsonPrimitive(jp);
                }
            }
        }
    }

    if (isPrimitive(source.getClass())) {
        return (T) source;
    }

    if (isEnum(clazz, source)) {
        return (T) convertEnum(clazz, source);
    }

    if ("".equals(String.valueOf(source))) {
        return (T) source;
    }

    if (Command.class.equals(clazz)) {
        JsonObject json = new JsonParser().parse((String) source).getAsJsonObject();

        SessionId sessionId = null;
        if (json.has("sessionId") && !json.get("sessionId").isJsonNull()) {
            sessionId = convert(SessionId.class, json.get("sessionId"), depth + 1);
        }

        String name = json.get("name").getAsString();
        if (json.has("parameters")) {
            Map<String, ?> args = (Map<String, ?>) convert(HashMap.class, json.get("parameters"), depth + 1);
            return (T) new Command(sessionId, name, args);
        }

        return (T) new Command(sessionId, name);
    }

    if (Response.class.equals(clazz)) {
        Response response = new Response();
        JsonObject json = source instanceof JsonObject ? (JsonObject) source
                : new JsonParser().parse((String) source).getAsJsonObject();

        if (json.has("error") && !json.get("error").isJsonNull()) {
            String state = json.get("error").getAsString();
            response.setState(state);
            response.setStatus(errorCodes.toStatus(state, Optional.empty()));
            response.setValue(convert(Object.class, json.get("message")));
        }
        if (json.has("state") && !json.get("state").isJsonNull()) {
            String state = json.get("state").getAsString();
            response.setState(state);
            response.setStatus(errorCodes.toStatus(state, Optional.empty()));
        }
        if (json.has("status") && !json.get("status").isJsonNull()) {
            JsonElement status = json.get("status");
            if (status.getAsJsonPrimitive().isString()) {
                String state = status.getAsString();
                response.setState(state);
                response.setStatus(errorCodes.toStatus(state, Optional.empty()));
            } else {
                int intStatus = status.getAsInt();
                response.setState(errorCodes.toState(intStatus));
                response.setStatus(intStatus);
            }
        }
        if (json.has("sessionId") && !json.get("sessionId").isJsonNull()) {
            response.setSessionId(json.get("sessionId").getAsString());
        }

        if (json.has("value")) {
            response.setValue(convert(Object.class, json.get("value")));
        } else {
            response.setValue(convert(Object.class, json));
        }

        return (T) response;
    }

    if (SessionId.class.equals(clazz)) {
        // Stupid heuristic to tell if we are dealing with a selenium 2 or 3 session id.
        JsonElement json = source instanceof String ? new JsonParser().parse((String) source).getAsJsonObject()
                : (JsonElement) source;
        if (json.isJsonPrimitive()) {
            return (T) new SessionId(json.getAsString());
        }
        return (T) new SessionId(json.getAsJsonObject().get("value").getAsString());
    }

    if (Capabilities.class.isAssignableFrom(clazz)) {
        JsonObject json = source instanceof JsonElement ? ((JsonElement) source).getAsJsonObject()
                : new JsonParser().parse(source.toString()).getAsJsonObject();
        Map<String, Object> map = convertMap(json.getAsJsonObject(), depth);
        return (T) new MutableCapabilities(map);
    }

    if (Date.class.equals(clazz)) {
        return (T) new Date(Long.valueOf(String.valueOf(source)));
    }

    if (source instanceof String && !((String) source).startsWith("{") && Object.class.equals(clazz)) {
        return (T) source;
    }

    Method fromJson = getMethod(clazz, "fromJson");
    if (fromJson != null) {
        try {
            return (T) fromJson.invoke(null, source.toString());
        } catch (ReflectiveOperationException e) {
            throw new WebDriverException(e);
        }
    }

    if (depth == 0) {
        if (source instanceof String) {
            source = new JsonParser().parse((String) source);
        }
    }

    if (source instanceof JsonElement) {
        JsonElement element = (JsonElement) source;

        if (element.isJsonNull()) {
            return null;
        }

        if (element.isJsonPrimitive()) {
            return (T) convertJsonPrimitive(element.getAsJsonPrimitive());
        }

        if (element.isJsonArray()) {
            return (T) convertList(element.getAsJsonArray(), depth);
        }

        if (element.isJsonObject()) {
            if (Map.class.isAssignableFrom(clazz)) {
                return (T) convertMap(element.getAsJsonObject(), depth);
            }

            if (Object.class.equals(clazz)) {
                return (T) convertMap(element.getAsJsonObject(), depth);
            }

            return convertBean(clazz, element.getAsJsonObject(), depth);
        }
    }

    return (T) source; // Crap shoot here; probably a string.
}

From source file:org.openqa.selenium.json.JsonToBeanConverter.java

License:Apache License

private <T> T convertBean(Class<T> clazz, JsonObject toConvert, int depth) {
    T t = newInstance(clazz);/*w  w w .  ja va  2  s . c  o  m*/
    SimplePropertyDescriptor[] allProperties = SimplePropertyDescriptor.getPropertyDescriptors(clazz);
    for (SimplePropertyDescriptor property : allProperties) {
        if (!toConvert.has(property.getName()))
            continue;

        JsonElement value = toConvert.get(property.getName());

        Method write = property.getWriteMethod();
        if (write == null) {
            continue;
        }

        Class<?> type = write.getParameterTypes()[0];

        try {
            if (value.isJsonNull()) {
                value = null;
            }
            write.invoke(t, convert(type, value, depth + 1));
        } catch (IllegalArgumentException e) {
            throw propertyWriteException(property, value, type, e);
        } catch (IllegalAccessException e) {
            throw propertyWriteException(property, value, type, e);
        } catch (InvocationTargetException e) {
            throw propertyWriteException(property, value, type, e);
        }
    }

    return t;
}

From source file:org.openqa.selenium.remote.JsonToBeanConverter.java

License:Apache License

@SuppressWarnings("unchecked")
private <T> T convert(Class<T> clazz, Object source, int depth) {
    if (source == null || source instanceof JsonNull) {
        return null;
    }//from ww w. j a v  a 2s.co m

    if (source instanceof JsonElement) {
        JsonElement json = (JsonElement) source;

        if (json.isJsonPrimitive()) {
            JsonPrimitive jp = json.getAsJsonPrimitive();

            if (String.class.equals(clazz)) {
                return (T) jp.getAsString();
            }

            if (jp.isNumber()) {
                if (Integer.class.isAssignableFrom(clazz) || int.class.equals(clazz)) {
                    return (T) Integer.valueOf(jp.getAsNumber().intValue());
                } else if (Long.class.isAssignableFrom(clazz) || long.class.equals(clazz)) {
                    return (T) Long.valueOf(jp.getAsNumber().longValue());
                } else if (Float.class.isAssignableFrom(clazz) || float.class.equals(clazz)) {
                    return (T) Float.valueOf(jp.getAsNumber().floatValue());
                } else if (Double.class.isAssignableFrom(clazz) || double.class.equals(clazz)) {
                    return (T) Double.valueOf(jp.getAsNumber().doubleValue());
                } else {
                    return (T) convertJsonPrimitive(jp);
                }
            }
        }
    }

    if (isPrimitive(source.getClass())) {
        return (T) source;
    }

    if (isEnum(clazz, source)) {
        return (T) convertEnum(clazz, source);
    }

    if ("".equals(String.valueOf(source))) {
        return (T) source;
    }

    if (Command.class.equals(clazz)) {
        JsonObject json = new JsonParser().parse((String) source).getAsJsonObject();

        SessionId sessionId = null;
        if (json.has("sessionId") && !json.get("sessionId").isJsonNull()) {
            sessionId = convert(SessionId.class, json.get("sessionId"), depth + 1);
        }

        String name = json.get("name").getAsString();
        if (json.has("parameters")) {
            Map<String, ?> args = (Map<String, ?>) convert(HashMap.class, json.get("parameters"), depth + 1);
            return (T) new Command(sessionId, name, args);
        }

        return (T) new Command(sessionId, name);
    }

    if (Response.class.equals(clazz)) {
        Response response = new Response();
        JsonObject json = source instanceof JsonObject ? (JsonObject) source
                : new JsonParser().parse((String) source).getAsJsonObject();

        if (json.has("error") && !json.get("error").isJsonNull()) {
            String state = json.get("error").getAsString();
            response.setState(state);
            response.setStatus(errorCodes.toStatus(state, Optional.empty()));
            response.setValue(convert(Object.class, json.get("message")));
        }
        if (json.has("state") && !json.get("state").isJsonNull()) {
            String state = json.get("state").getAsString();
            response.setState(state);
            response.setStatus(errorCodes.toStatus(state, Optional.empty()));
        }
        if (json.has("status") && !json.get("status").isJsonNull()) {
            JsonElement status = json.get("status");
            if (status.getAsJsonPrimitive().isString()) {
                String state = status.getAsString();
                response.setState(state);
                response.setStatus(errorCodes.toStatus(state, Optional.empty()));
            } else {
                int intStatus = status.getAsInt();
                response.setState(errorCodes.toState(intStatus));
                response.setStatus(intStatus);
            }
        }
        if (json.has("sessionId") && !json.get("sessionId").isJsonNull()) {
            response.setSessionId(json.get("sessionId").getAsString());
        }

        if (json.has("value")) {
            response.setValue(convert(Object.class, json.get("value")));
        } else {
            response.setValue(convert(Object.class, json));
        }

        return (T) response;
    }

    if (SessionId.class.equals(clazz)) {
        // Stupid heuristic to tell if we are dealing with a selenium 2 or 3 session id.
        JsonElement json = source instanceof String ? new JsonParser().parse((String) source).getAsJsonObject()
                : (JsonElement) source;
        if (json.isJsonPrimitive()) {
            return (T) new SessionId(json.getAsString());
        }
        return (T) new SessionId(json.getAsJsonObject().get("value").getAsString());
    }

    if (Capabilities.class.isAssignableFrom(clazz)) {
        JsonObject json = source instanceof JsonElement ? ((JsonElement) source).getAsJsonObject()
                : new JsonParser().parse(source.toString()).getAsJsonObject();
        Map<String, Object> map = convertMap(json.getAsJsonObject(), depth);
        return (T) new DesiredCapabilities(map);
    }

    if (Date.class.equals(clazz)) {
        return (T) new Date(Long.valueOf(String.valueOf(source)));
    }

    if (source instanceof String && !((String) source).startsWith("{") && Object.class.equals(clazz)) {
        return (T) source;
    }

    Method fromJson = getMethod(clazz, "fromJson");
    if (fromJson != null) {
        try {
            return (T) fromJson.invoke(null, source.toString());
        } catch (IllegalArgumentException e) {
            throw new WebDriverException(e);
        } catch (IllegalAccessException e) {
            throw new WebDriverException(e);
        } catch (InvocationTargetException e) {
            throw new WebDriverException(e);
        }
    }

    if (depth == 0) {
        if (source instanceof String) {
            source = new JsonParser().parse((String) source);
        }
    }

    if (source instanceof JsonElement) {
        JsonElement element = (JsonElement) source;

        if (element.isJsonNull()) {
            return null;
        }

        if (element.isJsonPrimitive()) {
            return (T) convertJsonPrimitive(element.getAsJsonPrimitive());
        }

        if (element.isJsonArray()) {
            return (T) convertList(element.getAsJsonArray(), depth);
        }

        if (element.isJsonObject()) {
            if (Map.class.isAssignableFrom(clazz)) {
                return (T) convertMap(element.getAsJsonObject(), depth);
            }

            if (Object.class.equals(clazz)) {
                return (T) convertMap(element.getAsJsonObject(), depth);
            }

            return convertBean(clazz, element.getAsJsonObject(), depth);
        }
    }

    return (T) source; // Crap shoot here; probably a string.
}

From source file:org.plos.crepo.model.metadata.RepoMetadata.java

License:Open Source License

@VisibleForTesting
static Object convertJsonToImmutable(JsonElement element) {
    if (element.isJsonNull()) {
        return null;
    }//from  w w w. j  ava  2 s  . c o m
    if (element.isJsonPrimitive()) {
        JsonPrimitive primitive = element.getAsJsonPrimitive();
        if (primitive.isString())
            return primitive.getAsString();
        if (primitive.isNumber())
            return asNumber(primitive);
        if (primitive.isBoolean())
            return primitive.getAsBoolean();
        throw new RuntimeException("JsonPrimitive is not one of the expected primitive types");
    }
    if (element.isJsonArray()) {
        JsonArray array = element.getAsJsonArray();
        if (array.size() == 0)
            return Collections.emptyList();
        List<Object> convertedList = new ArrayList<>(array.size());
        for (JsonElement arrayElement : array) {
            Object convertedElement = convertJsonToImmutable(arrayElement);
            convertedList.add(convertedElement);
        }
        return Collections.unmodifiableList(convertedList);
    }
    if (element.isJsonObject()) {
        Set<Map.Entry<String, JsonElement>> entries = element.getAsJsonObject().entrySet();
        if (entries.size() == 0)
            return Collections.emptyMap();
        Map<String, Object> convertedMap = Maps.newHashMapWithExpectedSize(entries.size());
        for (Map.Entry<String, JsonElement> entry : entries) {
            String key = Preconditions.checkNotNull(entry.getKey());
            Object value = convertJsonToImmutable(entry.getValue());
            convertedMap.put(key, value);
        }
        return Collections.unmodifiableMap(convertedMap);
    }
    throw new RuntimeException("JsonElement is not one of the expected subtypes");
}