Example usage for com.google.gson JsonElement isJsonPrimitive

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

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Introduction

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

Prototype

public boolean isJsonPrimitive()

Source Link

Document

provides check for verifying if this element is a primitive or not.

Usage

From source file:org.spongepowered.common.util.persistence.JsonTranslator.java

License:MIT License

private static Object convert(JsonElement element) {
    if (element.isJsonObject()) {
        MemoryDataView container = new MemoryDataContainer();
        for (Entry<String, JsonElement> entry : ((JsonObject) element).entrySet()) {
            Object value = convert(entry.getValue());
            if (value != null) {
                container.set(DataQuery.of(entry.getKey()), value);
            }/*from   w w w  .  j a v  a 2  s. com*/
        }
        return container;
    } else if (element.isJsonArray()) {
        return Lists.newArrayList(Iterables.transform((JsonArray) element, JsonTranslator::convert));
    } else if (element.isJsonPrimitive()) {
        JsonPrimitive primitive = (JsonPrimitive) element;
        if (primitive.isString()) {
            return primitive.getAsString();
        } else if (primitive.isBoolean()) {
            return primitive.getAsBoolean();
        } else if (primitive.isNumber()) {
            return primitive.getAsNumber();
        }
    }
    return null;
}

From source file:org.springframework.ide.vscode.commons.util.GsonUtil.java

License:Open Source License

public static String getAsString(JsonElement target) {
    // Need to check if it is a primitive before get as string, otherwise
    // exceptions can be thrown. See the JsonElement javadoc
    if (target != null && target.isJsonPrimitive()) {
        return target.getAsString();
    }/*  w ww  . j av  a  2 s  . c o m*/
    return null;
}

From source file:org.structr.core.JsonInputGSONAdapter.java

License:Open Source License

@Override
public JsonInput deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {

    JsonInput wrapper = new JsonInput();

    if (json.isJsonObject()) {

        JsonObject obj = json.getAsJsonObject();

        for (Entry<String, JsonElement> entry : obj.entrySet()) {

            String key = entry.getKey();
            JsonElement elem = entry.getValue();

            // static mapping of IdProperty if present
            if ((idProperty != null) && "id".equals(key)) {

                key = idProperty.jsonName();

            }/* ww w.  j av a2 s  . c  om*/

            if (elem.isJsonNull()) {

                wrapper.add(key, null);

            } else if (elem.isJsonObject()) {

                wrapper.add(key, deserialize(elem, typeOfT, context));

            } else if (elem.isJsonArray()) {

                JsonArray array = elem.getAsJsonArray();
                List list = new LinkedList();
                for (JsonElement element : array) {
                    if (element.isJsonPrimitive()) {
                        list.add(fromPrimitive((element.getAsJsonPrimitive())));
                    } else if (element.isJsonObject()) {
                        // create map of values
                        list.add(deserialize(element, typeOfT, context));
                    }
                }

                wrapper.add(key, list);

            } else if (elem.isJsonPrimitive()) {

                // wrapper.add(key, elem.getAsString());
                wrapper.add(key, fromPrimitive((JsonPrimitive) elem));
            }

        }

    } else if (json.isJsonArray()) {

        JsonArray array = json.getAsJsonArray();
        for (JsonElement elem : array) {

            if (elem.isJsonPrimitive()) {
                wrapper.add(elem.toString(), ((JsonPrimitive) elem).getAsString());
            } else if (elem.isJsonObject()) {
                wrapper.add(elem.toString(), deserialize(elem, typeOfT, context));
            } else if (elem.isJsonArray()) {
                wrapper.add(elem.toString(), deserialize(elem, typeOfT, context));
            }
        }
    }

    return wrapper;
}

From source file:org.structr.core.PropertySetGSONAdapter.java

License:Open Source License

private PropertySet deserializeFlatNameValue(JsonElement json, Type typeOfT,
        JsonDeserializationContext context) {

    PropertySet wrapper = new PropertySet();

    if (json.isJsonObject()) {

        JsonObject obj = json.getAsJsonObject();

        for (Entry<String, JsonElement> entry : obj.entrySet()) {

            String key = entry.getKey();
            JsonElement elem = entry.getValue();

            // static mapping of IdProperty if present
            if ((idProperty != null) && "id".equals(key)) {

                key = idProperty;/* ww  w  .  j ava 2s. c o m*/

            }

            if (elem.isJsonNull()) {

                wrapper.add(key, null);

            } else if (elem.isJsonObject()) {

                wrapper.add(key, deserializeFlatNameValue(elem, typeOfT, context));

            } else if (elem.isJsonArray()) {

                JsonArray array = elem.getAsJsonArray();
                List list = new LinkedList();
                for (JsonElement element : array) {
                    if (element.isJsonPrimitive()) {
                        list.add(fromPrimitive((element.getAsJsonPrimitive())));
                    } else if (element.isJsonObject()) {
                        // create map of values
                        list.add(deserializeFlatNameValue(element, typeOfT, context));
                    }
                }

                wrapper.add(key, list);

            } else if (elem.isJsonPrimitive()) {

                // wrapper.add(key, elem.getAsString());
                wrapper.add(key, fromPrimitive((JsonPrimitive) elem));
            }

        }

    } else if (json.isJsonArray()) {

        JsonArray array = json.getAsJsonArray();
        for (JsonElement elem : array) {

            if (elem.isJsonPrimitive()) {
                wrapper.add(elem.toString(), ((JsonPrimitive) elem).getAsString());
            } else if (elem.isJsonObject()) {
                wrapper.add(elem.toString(), deserializeFlatNameValue(elem, typeOfT, context));
            } else if (elem.isJsonArray()) {
                wrapper.add(elem.toString(), deserializeFlatNameValue(elem, typeOfT, context));
            }
        }
    }

    return wrapper;
}

From source file:org.structr.core.rest.JsonInputGSONAdapter.java

License:Open Source License

public static JsonInput deserialize(final JsonElement json, final JsonDeserializationContext context)
        throws JsonParseException {

    final JsonInput wrapper = new JsonInput();
    if (json.isJsonObject()) {

        final JsonObject obj = json.getAsJsonObject();

        for (final Entry<String, JsonElement> entry : obj.entrySet()) {

            final String key = entry.getKey();
            final JsonElement elem = entry.getValue();

            if (elem.isJsonNull()) {

                wrapper.add(key, null);/*  www . java2 s.com*/

            } else if (elem.isJsonObject()) {

                wrapper.add(key, deserialize(elem, context));

            } else if (elem.isJsonArray()) {

                final JsonArray array = elem.getAsJsonArray();
                final List list = new LinkedList();

                for (final JsonElement element : array) {

                    if (element.isJsonPrimitive()) {

                        list.add(fromPrimitive((element.getAsJsonPrimitive())));

                    } else if (element.isJsonObject()) {

                        // create map of values
                        list.add(deserialize(element, context));
                    }
                }

                wrapper.add(key, list);

            } else if (elem.isJsonPrimitive()) {

                // wrapper.add(key, elem.getAsString());
                wrapper.add(key, fromPrimitive(elem.getAsJsonPrimitive()));
            }

        }

    } else if (json.isJsonArray()) {

        final JsonArray array = json.getAsJsonArray();
        for (final JsonElement elem : array) {

            if (elem.isJsonPrimitive()) {

                wrapper.add(elem.toString(), fromPrimitive(elem.getAsJsonPrimitive()));

            } else if (elem.isJsonObject()) {

                wrapper.add(elem.toString(), deserialize(elem, context));

            } else if (elem.isJsonArray()) {

                wrapper.add(elem.toString(), deserialize(elem, context));
            }
        }

    } else {

        // when we arrive here, the input element was
        // not one of the expected types => error
        throw new JsonSyntaxException("Invalid JSON, expecting object or array");
    }

    return wrapper;
}

From source file:org.structr.rest.JsonInputGSONAdapter.java

License:Open Source License

private JsonInput deserialize(JsonElement json, JsonDeserializationContext context) throws JsonParseException {

    JsonInput wrapper = new JsonInput();
    if (json.isJsonObject()) {

        JsonObject obj = json.getAsJsonObject();

        for (Entry<String, JsonElement> entry : obj.entrySet()) {

            String key = entry.getKey();
            JsonElement elem = entry.getValue();

            if (elem.isJsonNull()) {

                wrapper.add(key, null);//from  ww  w  .j  a va  2s .  c  o  m

            } else if (elem.isJsonObject()) {

                wrapper.add(key, deserialize(elem, context));

            } else if (elem.isJsonArray()) {

                final JsonArray array = elem.getAsJsonArray();
                final List list = new LinkedList();

                for (JsonElement element : array) {

                    if (element.isJsonPrimitive()) {

                        list.add(fromPrimitive((element.getAsJsonPrimitive())));

                    } else if (element.isJsonObject()) {

                        // create map of values
                        list.add(deserialize(element, context));
                    }
                }

                wrapper.add(key, list);

            } else if (elem.isJsonPrimitive()) {

                // wrapper.add(key, elem.getAsString());
                wrapper.add(key, fromPrimitive(elem.getAsJsonPrimitive()));
            }

        }

    } else if (json.isJsonArray()) {

        JsonArray array = json.getAsJsonArray();
        for (JsonElement elem : array) {

            if (elem.isJsonPrimitive()) {

                wrapper.add(elem.toString(), fromPrimitive(elem.getAsJsonPrimitive()));

            } else if (elem.isJsonObject()) {

                wrapper.add(elem.toString(), deserialize(elem, context));

            } else if (elem.isJsonArray()) {

                wrapper.add(elem.toString(), deserialize(elem, context));
            }
        }
    }

    return wrapper;
}

From source file:org.sweble.wom3.serialization.Wom3JsonTypeAdapterBase.java

License:Open Source License

protected static Scope registerNsDecl(ScopeStack scopeStack, Scope scope, String entryName,
        JsonElement entryValue) {
    if (!entryValue.isJsonPrimitive())
        throw new JsonParseException("Expected attribute '" + entryName + "' to be a string");

    entryName = entryName.substring(1);/* w  ww .  ja  va2 s.  com*/
    String valueString = entryValue.getAsString();
    if (entryName.equals(XMLNS_PREFIX)) {
        if (scope == null)
            scope = scopeStack.push();
        scope.setXmlns(valueString);
    } else if (entryName.startsWith(XMLNS_COLON_PREFIX)) {
        String prefix = entryName.substring(XMLNS_COLON_PREFIX.length());
        if (scope == null)
            scope = scopeStack.push();
        scope.put(prefix, valueString);
    }
    return scope;
}

From source file:org.sweble.wom3.serialization.Wom3JsonTypeAdapterBase.java

License:Open Source License

protected static void parseAttribute(ScopeStack scopeStack, Element elem, String entryName,
        JsonElement entryValue) {
    if (!entryValue.isJsonPrimitive())
        throw new JsonParseException("Expected attribute '" + entryName + "' to be a string");
    entryName = entryName.substring(1);/*  w ww. j  ava 2  s  . c  o m*/
    String valueString = entryValue.getAsString();
    int i = entryName.indexOf(':');
    if (i == -1) {
        if (XMLNS_PREFIX.equals(entryName)) {
            elem.setAttributeNS(XMLNS_URI, entryName, valueString);
        } else {
            elem.setAttribute(entryName, valueString);
        }
    } else {
        String prefix = entryName.substring(0, i);
        if (XMLNS_PREFIX.equals(prefix)) {
            elem.setAttributeNS(XMLNS_URI, entryName, valueString);
        } else {
            String nsUri = scopeStack.getNsUriForPrefix(prefix);
            if (nsUri == null)
                throw new NamespaceException("Namespace URI for prefix '" + prefix + "' not declared");
            elem.setAttributeNS(nsUri, entryName, valueString);
        }
    }
}

From source file:org.sweble.wom3.serialization.Wom3NodeCompactJsonTypeAdapter.java

License:Open Source License

private static Node fromJson(Wom3Document doc, JsonElement json, ScopeStack scopeStack) {
    if (json.isJsonPrimitive())
        return doc.createTextNode(json.getAsString());

    // Get node object
    if (!json.isJsonObject())
        throw new JsonParseException("Expected JsonObject or JsonPrimitive");
    JsonObject o = json.getAsJsonObject();

    Scope scope = null;/*from ww  w.  jav a2  s  .c o m*/
    String elemQName = null;
    ValueTypes valueType = null;
    JsonElement nodeValue = null;

    // Get node type
    Set<Entry<String, JsonElement>> entries = o.entrySet();
    for (Entry<String, JsonElement> e : entries) {
        String entryName = e.getKey();
        final JsonElement entryValue = e.getValue();
        if (entryName.startsWith(ELEMENT_NAME_PREFIX)) {
            if (elemQName != null)
                throw new JsonParseException("Node name field occurred repeatedly");

            elemQName = entryName.substring(1);
            nodeValue = entryValue;
        } else if (entryName.startsWith(SPECIAL_TYPE_PREFIX)) {
            if (valueType != null)
                throw new JsonParseException("Type name field occurred repeatedly");

            if (entryName.equals(TYPE_RTD)) {
                valueType = ValueTypes.RTD;
            } else if (entryName.equals(TYPE_TEXT)) {
                valueType = ValueTypes.TEXT;
            } else if (entryName.equals(TYPE_ENTITY_REF)) {
                valueType = ValueTypes.ENTITY_REF;
            } else if (entryName.equals(TYPE_COMMENT)) {
                valueType = ValueTypes.COMMENT;
            } else if (entryName.equals(TYPE_CDATA)) {
                valueType = ValueTypes.CDATA;
            } else
                throw new JsonParseException("Unknown special type '" + entryName + "'");

            nodeValue = entryValue;
        } else if (entryName.startsWith(ATTRIBUTE_PREFIX)) {
            scope = registerNsDecl(scopeStack, scope, entryName, entryValue);
        } else
            throw new JsonParseException("Unexpected field: '" + entryName + "'");
    }

    Element elem = null;
    String defaultNsUri = null;

    if (elemQName != null) {
        defaultNsUri = scopeStack.getXmlns();
        elem = createElement(doc, scopeStack, defaultNsUri, elemQName);
    } else if (valueType == null)
        throw new JsonParseException("Missing type name or node name");

    for (Entry<String, JsonElement> e : entries) {
        String entryName = e.getKey();
        JsonElement entryValue = e.getValue();
        if (entryName.startsWith(ATTRIBUTE_PREFIX)) {
            if (elem == null)
                throw new JsonParseException("Value type '" + valueType + "' cannot have attributes");

            parseAttribute(scopeStack, elem, entryName, entryValue);
        }
    }

    Node result;
    if (elem != null) {
        if (!nodeValue.isJsonArray())
            throw new JsonParseException(
                    "Expected member '" + ELEMENT_NAME_PREFIX + elemQName + "' to be an array.");

        JsonArray children = nodeValue.getAsJsonArray();
        for (JsonElement child : children)
            elem.appendChild(fromJson(doc, child, scopeStack));

        result = elem;
    } else {
        result = valueType.create(doc, nodeValue.getAsString());
    }

    if (scope != null)
        scopeStack.pop();

    return result;
}

From source file:org.sweble.wom3.serialization.Wom3NodeJsonTypeAdapter.java

License:Open Source License

private static Node fromJson(Wom3Document doc, JsonElement json, ScopeStack scopeStack) {
    // Get node object
    if (!json.isJsonObject())
        throw new JsonParseException("Expected JsonObject");
    JsonObject o = json.getAsJsonObject();
    Set<Entry<String, JsonElement>> entries = o.entrySet();

    // Get node type
    JsonElement type = o.get(PROPERTY_TYPE);
    if (type == null)
        throw new JsonParseException("Missing member '" + PROPERTY_TYPE + "'");
    if (!type.isJsonPrimitive())
        throw new JsonParseException("Expected member '" + PROPERTY_TYPE + "' to be a string");

    Element elem = null;/*w w w.  ja  v a2s.c o  m*/
    ValueTypes valueType = null;
    Scope scope = null;
    String defaultNsUri = null;

    String typeQName = type.getAsString();
    if (typeQName.startsWith(SPECIAL_TYPE_PREFIX)) {
        if (typeQName.equals("#text")) {
            valueType = ValueTypes.XML_TEXT;
        } else if (typeQName.equals(TYPE_ENTITY_REF)) {
            valueType = ValueTypes.ENTITY_REF;
        } else if (typeQName.equals("#cdata-section")) {
            valueType = ValueTypes.CDATA;
        } else if (typeQName.equals("#comment")) {
            valueType = ValueTypes.COMMENT;
        } else {
            throw new JsonParseException("Unknown special type '" + typeQName + "'");
        }
    } else {
        scope = registerNsDecls(entries, scopeStack, scope);

        defaultNsUri = scopeStack.getXmlns();
        if (defaultNsUri != null && defaultNsUri.isEmpty())
            defaultNsUri = null;

        elem = createElement(doc, scopeStack, defaultNsUri, typeQName);
    }

    int countType = 0;
    int countChildren = 0;
    String nodeValue = null;

    for (Entry<String, JsonElement> e : entries) {
        String entryName = e.getKey();
        JsonElement entryValue = e.getValue();
        if (entryName.startsWith(ATTRIBUTE_PREFIX)) {
            if (elem == null)
                throw new JsonParseException("Node type '" + typeQName + "' cannot have attributes");

            parseAttribute(scopeStack, elem, entryName, entryValue);
        } else if (entryName.startsWith(PROPERTY_PREFIX)) {
            if (entryName.equals(PROPERTY_TYPE)) {
                ++countType;
                if (countType > 1)
                    throw new JsonParseException("Member '" + PROPERTY_TYPE + "' occurred repeatedly");
                // Ignore, we handled that field already
            } else if (entryName.equals(PROPERTY_VALUE)) {
                if (nodeValue != null)
                    throw new JsonParseException("Member '" + PROPERTY_VALUE + "' occurred repeatedly");
                if (valueType == null)
                    throw new JsonParseException("Type '" + typeQName + "' cannot have a value");
                nodeValue = entryValue.getAsString();
            } else if (entryName.equals(PROPERTY_CHILDREN)) {
                ++countChildren;
                if (countChildren > 1)
                    throw new JsonParseException("Member '" + PROPERTY_CHILDREN + "' occurred repeatedly");
                if (valueType != null)
                    throw new JsonParseException("Type '" + typeQName + "' cannot have children");
                if (!entryValue.isJsonArray())
                    throw new JsonParseException("Expected member '" + entryName + "' to be an array.");
                JsonArray children = entryValue.getAsJsonArray();
                for (JsonElement child : children)
                    elem.appendChild(fromJson(doc, child, scopeStack));
            }
        } else
            throw new JsonParseException("Unexpected field: '" + entryName + "'");
    }

    if (scope != null)
        scopeStack.pop();

    return (valueType != null) ? valueType.create(doc, nodeValue) : elem;
}