com.alibaba.fastjson.serializer.SerialContext Java Examples

The following examples show how to use com.alibaba.fastjson.serializer.SerialContext. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: MyJavaBeanSerializer.java    From dpCms with Apache License 2.0 5 votes vote down vote up 
@Override
public boolean writeReference(JSONSerializer serializer, Object object,
		int fieldFeatures) {

	SerialContext context = serializer.getContext();
	{

		if (context != null
				&& SerializerFeature.isEnabled(context.getFeatures(),
						fieldFeatures,
						SerializerFeature.DisableCircularReferenceDetect)) {
			return false;
		}
	}

	if (!serializer.containsReference(object)) {
		return false;
	}

	SerialContext parentCtx = context;
	while ((parentCtx = parentCtx.getParent()) != null) {
		Object parentObj = parentCtx.getObject();
		if (object.equals(parentObj)) {
			serializer.writeNull();
			return true;
		}
	}
	return false;
}
Example #2
Source File: MyListSerializer.java    From dpCms with Apache License 2.0 5 votes vote down vote up 
private void handle(JSONSerializer serializer, ObjectSerializer itemSerializer, SerialContext context,
		Object object, Object fieldName, Type elementType,  Object item) throws IOException {
	serializer.println();
	if (item != null) {
		itemSerializer = serializer.getObjectWriter(item.getClass());
		SerialContext itemContext = new SerialContext(context, object, fieldName, 0, 0);
		serializer.setContext(itemContext);
		itemSerializer.write(serializer, item, fieldName, elementType, 0);
	} 
	else {
		serializer.getWriter().writeNull();
	}
}
Example #3
Source File: MyCollectionSerializer.java    From dpCms with Apache License 2.0 4 votes vote down vote up 
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
    SerializeWriter out = serializer.getWriter();
    if (object == null) {
        if (out.isEnabled(SerializerFeature.WriteNullListAsEmpty)) {
            out.write("[]");
        } 
        else {
            out.writeNull();
        }
        return;
    }

    Type elementType = null;
    if (serializer.isEnabled(SerializerFeature.WriteClassName)) {
        if (fieldType instanceof ParameterizedType) {
            ParameterizedType param = (ParameterizedType) fieldType;
            elementType = param.getActualTypeArguments()[0];
        }
    }

    Collection<?> collection = (Collection<?>) object;

    SerialContext context = serializer.getContext();
    serializer.setContext(context, object, fieldName, 0);

    if (serializer.isEnabled(SerializerFeature.WriteClassName)) {
        if (HashSet.class == collection.getClass()) {
            out.append("Set");
        } 
        else if (TreeSet.class == collection.getClass()) {
            out.append("TreeSet");
        }
    }

    try {
        int i = 0;
        out.append('[');
        
        for (Object item : collection) {

            if (i++ != 0) {
                out.append(',');
            }

            if (item == null) {
                out.writeNull();
                continue;
            }

            Class<?> clazz = item.getClass();

            if (clazz == Integer.class) {
                out.writeInt(((Integer) item).intValue());
                continue;
            }

            if (clazz == Long.class) {
                out.writeLong(((Long) item).longValue());

                if (out.isEnabled(SerializerFeature.WriteClassName)) {
                    out.write('L');
                }
                continue;
            }

            ObjectSerializer itemSerializer = serializer.getObjectWriter(clazz);
            itemSerializer.write(serializer, item, i - 1, elementType, 0);
        }
        out.append(']');
    } 
    finally {
        serializer.setContext(context);
    }
}