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.terasology.utilities.gson.ResolutionHandler.java

License:Apache License

@Override
public Resolution deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
    if (json.isJsonNull()) {
        return HeadlessResolution.getInstance();
    }/*from   w  w w  . j ava 2s.  c  o  m*/
    return new LwjglResolution(context.deserialize(json, DisplayMode.class));
}

From source file:org.trimou.gson.resolver.JsonElementResolver.java

License:Apache License

private Object unwrapJsonElementIfNecessary(JsonElement jsonElement) {
    if (unwrapJsonPrimitive) {
        if (jsonElement.isJsonPrimitive()) {
            return unwrapJsonPrimitive((JsonPrimitive) jsonElement);
        } else if (jsonElement.isJsonNull()) {
            return Placeholder.NULL;
        }/*from w w w. ja  v a2s  . com*/
    }
    return jsonElement;
}

From source file:org.tuleap.mylyn.task.core.internal.parser.AbstractDetailedElementDeserializer.java

License:Open Source License

/**
 * {@inheritDoc}/*from  w  ww. ja  v  a2 s. co m*/
 *
 * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type,
 *      com.google.gson.JsonDeserializationContext)
 */
@Override
public T deserialize(JsonElement rootJsonElement, Type type, JsonDeserializationContext context)
        throws JsonParseException {

    T pojo = super.deserialize(rootJsonElement, type, context);

    JsonObject jsonObject = rootJsonElement.getAsJsonObject();

    JsonElement element = jsonObject.get(HTML_URL);
    if (element != null && !element.isJsonNull()) {
        String htmlUrl = element.getAsString();
        pojo.setHtmlUrl(htmlUrl);
    }
    element = jsonObject.get(SUBMITTED_ON);
    if (element != null && !element.isJsonNull()) {
        try {
            pojo.setSubmittedOn(context.<Date>deserialize(element, Date.class));
        } catch (JsonParseException e) {
            TuleapCoreActivator.log(e, false);
        }
    }
    element = jsonObject.get(SUBMITTED_BY);
    if (element != null && element.isJsonPrimitive()) {
        int submittedBy = element.getAsInt();
        pojo.setSubmittedBy(submittedBy);
    }
    element = jsonObject.get(LAST_MODIFIED_DATE);
    if (element != null && !element.isJsonNull()) {
        try {
            pojo.setLastModifiedDate(context.<Date>deserialize(element, Date.class));
        } catch (JsonParseException e) {
            TuleapCoreActivator.log(e, false);
        }
    }
    return pojo;
}

From source file:org.tuleap.mylyn.task.core.internal.parser.AbstractProjectElementDeserializer.java

License:Open Source License

/**
 * {@inheritDoc}/*from   w ww . j ava 2 s.  com*/
 *
 * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type,
 *      com.google.gson.JsonDeserializationContext)
 */
@Override
public T deserialize(JsonElement rootJsonElement, Type type, JsonDeserializationContext context)
        throws JsonParseException {

    JsonObject jsonObject = rootJsonElement.getAsJsonObject();

    String id = jsonObject.get(ITuleapConstants.ID).getAsString();
    T pojo = getPrototype(id);

    JsonElement jsonElement = jsonObject.get(ITuleapConstants.LABEL);
    if (jsonElement != null && !jsonElement.isJsonNull()) {
        pojo.setLabel(jsonElement.getAsString());
    }
    TuleapReference project = context.deserialize(jsonObject.get(ITuleapConstants.JSON_PROJECT),
            TuleapReference.class);
    JsonElement element = jsonObject.get(ITuleapConstants.URI);
    if (element != null && !element.isJsonNull()) {
        pojo.setUri(element.getAsString());
    }

    pojo.setProject(project);
    return pojo;
}

From source file:org.tuleap.mylyn.task.core.internal.parser.TuleapChangesetDeserializer.java

License:Open Source License

/**
 * Deserialize the JSON representation of a comment.
 *
 * @param element//w  w w .java 2s  .co m
 *            The JSON comment
 * @param type
 *            The comment type
 * @param context
 *            The context
 * @return the TuleapElementComment
 * @throws JsonParseException
 *             The exception to throw
 */
@Override
public TuleapElementComment deserialize(JsonElement element, Type type, JsonDeserializationContext context)
        throws JsonParseException {

    JsonObject jsonObject = element.getAsJsonObject();

    Date submissionDate = null;
    int submittedBy = -1;
    String email = null;
    String body = null;

    JsonElement theElement = jsonObject.get(SUBMITTED_ON);
    if (theElement != null && !theElement.isJsonNull()) {
        try {
            submissionDate = context.<Date>deserialize(theElement, Date.class);
        } catch (JsonParseException e) {
            TuleapCoreActivator.log(e, false);
        }
    }

    theElement = jsonObject.get(SUBMITTED_BY);
    if (theElement != null && theElement.isJsonPrimitive()) {
        submittedBy = theElement.getAsInt();
    }

    theElement = jsonObject.get(EMAIL);
    if (theElement != null && theElement.isJsonPrimitive()) {
        email = theElement.getAsString();
    }

    JsonObject lastComment = jsonObject.get(LAST_COMMENT).getAsJsonObject();

    theElement = lastComment.get(BODY);
    if (theElement != null && theElement.isJsonPrimitive()) {
        body = theElement.getAsString();
    }

    TuleapUser user = new TuleapUser(null, null, submittedBy, email, null);

    return new TuleapElementComment(body, user, submissionDate);

}

From source file:org.tuleap.mylyn.task.core.internal.parser.TuleapTrackerDeserializer.java

License:Open Source License

/**
 * Extract a field from its JSON representation and adds it to the given tracker.
 *
 * @param field// w ww .  j ava 2 s.  c  o m
 *            The JSON representation of the field
 * @param tracker
 *            The tracker
 * @param jsonObject
 *            The parent JSON object of the field
 * @param fieldSemantic
 *            The JSON representation of the semantics part
 * @param context
 *            the deserialization context
 * @return The relevant kind of TuleapField, can be null for unknown or unmanaged field types.
 */
private AbstractTuleapField getField(JsonObject field, TuleapTracker tracker, JsonObject jsonObject,
        JsonObject fieldSemantic, JsonDeserializationContext context) {
    int fieldId = field.get(FIELD_ID).getAsInt();
    String fieldType = field.get(TYPE).getAsString();
    AbstractTuleapField tuleapField = createField(fieldId, fieldType);
    if (tuleapField != null) {
        // the field label
        tuleapField.setLabel(field.get(LABEL).getAsString());
        tuleapField.setName(field.get("name").getAsString()); //$NON-NLS-1$

        // the field permissions
        JsonArray permissions = field.get(PERMISSIONS).getAsJsonArray();
        String[] permissionsArray = new String[permissions.size()];
        for (int j = 0; j < permissions.size(); j++) {
            if (CREATE.equals(permissions.get(j).getAsString())) {
                permissionsArray[j] = PERMISSION_SUBMIT;
            } else {
                permissionsArray[j] = permissions.get(j).getAsString();
            }
        }
        tuleapField.setPermissions(permissionsArray);

        // The Multi Select Box case
        JsonArray fieldValuesArray = null;
        JsonObject fieldBinding = null;
        JsonElement valuesElement = field.get(VALUES);
        if (valuesElement != null && !valuesElement.isJsonNull()) {
            fieldValuesArray = valuesElement.getAsJsonArray();
        }
        JsonElement bindingElement = field.get(BINDINGS);
        if (bindingElement != null && !bindingElement.isJsonNull()) {
            fieldBinding = bindingElement.getAsJsonObject();
        }
        if (tuleapField instanceof TuleapMultiSelectBox) {
            fillTuleapMultiSelectBoxField(tracker, (TuleapMultiSelectBox) tuleapField, fieldValuesArray,
                    fieldSemantic, fieldBinding);
            // The Select Box case
        } else if (tuleapField instanceof TuleapSelectBox) {
            fillTuleapSelectBoxField(tracker, (TuleapSelectBox) tuleapField, fieldValuesArray, fieldSemantic,
                    fieldBinding, jsonObject, context);
        }
        manageTitleSemantic(tuleapField, fieldSemantic);
    }
    return tuleapField;
}

From source file:org.tuleap.mylyn.task.core.internal.parser.TuleapTrackerDeserializer.java

License:Open Source License

/**
 * Sets the workflow and the transition for the select box.
 *
 * @param jsonObject//from  w  ww .  j  av a2  s.c  om
 *            the JSON root object
 * @param selectBoxField
 *            the select box field
 * @param context
 *            the deserialization context
 */
private void fillWorkflow(JsonObject jsonObject, TuleapSelectBox selectBoxField,
        JsonDeserializationContext context) {
    JsonElement workflowJsonElement = jsonObject.get(ITuleapTrackerConstants.WORKFLOW);
    if (workflowJsonElement != null && !workflowJsonElement.isJsonNull()) {
        JsonObject workflowJsonObject = workflowJsonElement.getAsJsonObject();

        if (workflowJsonObject.get(FIELD_ID).getAsInt() == selectBoxField.getIdentifier()) {
            // the workflow transitions
            JsonArray transitionsJsonArray = workflowJsonObject.get(TRANSITIONS).getAsJsonArray();
            for (JsonElement transitionElement : transitionsJsonArray) {
                TuleapWorkflowTransition workflowTransition = context.deserialize(transitionElement,
                        TuleapWorkflowTransition.class);
                selectBoxField.getWorkflow().addTransition(workflowTransition);
            }
        }
    }
}

From source file:org.tuleap.mylyn.task.core.internal.parser.TuleapWorkflowTransitionDeserializer.java

License:Open Source License

/**
 * {@inheritDoc}//from w w w . j a va 2s.com
 *
 * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type,
 *      com.google.gson.JsonDeserializationContext)
 */
@Override
public TuleapWorkflowTransition deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObject = json.getAsJsonObject();
    JsonElement fromElement = jsonObject.get(FROM_FIELD_VALUE_ID);
    // By default, the initial state is unselected
    int from = ITuleapConstants.CONFIGURABLE_FIELD_NONE_BINDING_ID;
    if (fromElement != null && !fromElement.isJsonNull()) {
        from = fromElement.getAsInt();
    }
    int to = jsonObject.get(TO_FIELD_VALUE_ID).getAsInt();

    TuleapWorkflowTransition transition = new TuleapWorkflowTransition();
    transition.setFrom(from);
    transition.setTo(to);
    return transition;
}

From source file:org.uorm.serializer.DefaultJsonSerializer.java

License:Apache License

@Override
public Map<String, Object> deserialize2(Class<?> cls, String json) throws Exception {
    JsonStreamParser parser = new JsonStreamParser(json);
    if (parser.hasNext()) {
        JsonObject jsonobj = parser.next().getAsJsonObject();
        Set<Entry<String, JsonElement>> jset = jsonobj.entrySet();
        if (!jset.isEmpty()) {
            Map<String, PropertyDescriptor> propMap = ObjectMappingCache.getInstance()
                    .getObjectPropertyMap(cls);
            Map<String, Object> instance = new HashMap<String, Object>();
            for (Entry<String, JsonElement> entry : jset) {
                String name = entry.getKey();
                JsonElement val = entry.getValue();
                if (!val.isJsonNull()) {
                    PropertyDescriptor descriptor = propMap.get(name);
                    if (descriptor != null) {
                        Class<?> memberType = descriptor.getPropertyType();
                        if (memberType == String.class) {
                            instance.put(name, val.getAsString());
                        } else if (memberType == Integer.class || memberType == Integer.TYPE) {
                            instance.put(name, val.getAsInt());
                        } else if (memberType == Byte.class || memberType == Byte.TYPE) {
                            instance.put(name, val.getAsByte());
                        } else if (memberType == Double.class || memberType == Double.TYPE) {
                            instance.put(name, val.getAsDouble());
                        } else if (memberType == Float.class || memberType == Float.TYPE) {
                            instance.put(name, val.getAsFloat());
                        } else if (memberType == Long.class || memberType == Long.TYPE) {
                            instance.put(name, val.getAsLong());
                        } else if (memberType == Short.class || memberType == Short.TYPE) {
                            instance.put(name, val.getAsShort());
                        } else if (memberType == Boolean.class || memberType == Boolean.TYPE) {
                            instance.put(name, val.getAsBoolean());
                        } else if (memberType == BigDecimal.class) {
                            instance.put(name, val.getAsBigDecimal());
                        } else if (memberType == BigInteger.class) {
                            instance.put(name, val.getAsBigInteger());
                        } else if (memberType == byte[].class) {
                            instance.put(name, val.getAsString().getBytes());
                        } else if (memberType == java.sql.Timestamp.class) {
                            Long time = parserDate(val.getAsString());
                            if (time == null) {
                                instance.put(name, null);
                            } else {
                                instance.put(name, new java.sql.Timestamp(time));
                            }//from  w ww . j a v  a 2 s.  c o m
                        } else if (memberType == java.sql.Date.class) {
                            Long time = parserDate(val.getAsString());
                            if (time == null) {
                                instance.put(name, null);
                            } else {
                                instance.put(name, new java.sql.Date(time));
                            }
                        } else if (memberType == java.util.Date.class) {
                            Long time = parserDate(val.getAsString());
                            if (time == null) {
                                instance.put(name, null);
                            } else {
                                instance.put(name, new java.util.Date(time));
                            }
                        } else {//default String
                            instance.put(name, val.getAsString());
                        }
                    } else {//String
                        instance.put(name, val.getAsString());
                    }
                }
            }
            return instance;
        }
    }
    return null;
}

From source file:org.virtue.cache.tools.GrandExchangeDumper.java

License:Open Source License

public static void main(String[] args) throws IOException {
    Cache cache = new Cache(FileStore.open(Constants.CACHE_REPOSITORY));
    ObjTypeList.init(cache, Constants.ITEM_DATA);
    JsonObject obj = new JsonObject();
    JsonArray arr = new JsonArray();
    DecimalFormat format = new DecimalFormat("###");

    int itemID = 0;

    File file = new File("./repository/prices.json");
    if (file.exists()) {
        JsonElement el = new JsonParser().parse(new FileReader(file));
        JsonArray entries = el.getAsJsonObject().get("items").getAsJsonArray();
        for (int index = 0; index < entries.size(); index++) {
            JsonObject ob = entries.get(index).getAsJsonObject();
            arr.add(ob);/*from  w w w  .j  a  v a2  s .co  m*/
            itemID = ob.get("id").getAsInt() + 1;
        }
    }

    int lastSleep = 0;

    double amount = 0;
    double index = arr.size();

    for (int id = 0; id < ObjTypeList.getInstance().getSize(); id++) {
        ObjType type = ObjTypeList.getInstance().list(id);
        if (type != null && type.stockmarket) {
            amount++;
        }
    }

    System.out.println("Total Items: " + amount + ", Starting ID: " + itemID);

    for (int id = itemID; id < ObjTypeList.getInstance().getSize(); id++) {
        ObjType type = ObjTypeList.getInstance().list(id);
        if (type != null && type.stockmarket) {
            try {
                URL link = new URL("http://api.rsapi.net/ge/item/" + id + ".json");
                InputStream stream = link.openStream();

                while (stream.available() < 1) {
                    ;
                }

                byte[] bytes = new byte[stream.available()];
                stream.read(bytes);
                stream.close();

                String json = new String(bytes);
                String parse = json.replace("[{", "{").replace("}]", "}").replace("\\/", "/");

                JsonElement element = new JsonParser().parse(parse);

                if (element.isJsonNull())
                    continue;

                try {
                    element.getAsJsonObject();
                } catch (Exception e) {
                    continue;
                }

                JsonElement exact = element.getAsJsonObject().get("prices").getAsJsonObject().get("exact");

                JsonObject item = new JsonObject();
                item.addProperty("id", id);
                item.addProperty("price", exact.getAsNumber());
                arr.add(item);

                lastSleep++;
                index++;

                if (lastSleep == 100) {
                    lastSleep = 0;
                    Thread.sleep(TimeUnit.MINUTES.toMillis(2));
                    System.out.println(format.format((index / amount) * 100) + "%");
                }
            } catch (Exception e) {
                e.printStackTrace();
                break;
            }
        }
    }

    obj.add("items", arr);

    Gson gson = new GsonBuilder().setPrettyPrinting().create();
    FileWriter writer = new FileWriter("./repository/prices.json");
    writer.write(gson.toJson(obj));
    writer.close();
}