Examples with Serializer org.terasology.persistence.typeHandling.Serializer used on opensource projects

Example 6 with Serializer

use of org.terasology.persistence.typeHandling.Serializer in project Terasology by MovingBlocks.

the class ComponentSerializer method serialize.

/**
 * Serializes the differences between two components.
 *
 * @param base  The base component to compare against.
 * @param delta The component whose differences will be serialized
 * @param check A check to use to see if each field should be serialized.
 * @return The serialized component, or null if it could not be serialized
 */
public EntityData.Component serialize(Component base, Component delta, FieldSerializeCheck<Component> check) {
    ComponentMetadata<?> componentMetadata = componentLibrary.getMetadata(base.getClass());
    if (componentMetadata == null) {
        logger.error("Unregistered component type: {}", base.getClass());
        return null;
    }
    EntityData.Component.Builder componentMessage = EntityData.Component.newBuilder();
    serializeComponentType(componentMetadata, componentMessage);
    Serializer serializer = typeSerializationLibrary.getSerializerFor(componentMetadata);
    boolean changed = false;
    for (ReplicatedFieldMetadata field : componentMetadata.getFields()) {
        if (check.shouldSerializeField(field, delta) && serializer.getHandlerFor(field) != null) {
            Object origValue = field.getValue(base);
            Object deltaValue = field.getValue(delta);
            if (!Objects.equal(origValue, deltaValue)) {
                PersistedData value = serializer.serializeValue(field, deltaValue, serializationContext);
                if (!value.isNull()) {
                    EntityData.Value dataValue = ((ProtobufPersistedData) value).getValue();
                    if (usingFieldIds) {
                        componentMessage.addField(EntityData.NameValue.newBuilder().setNameIndex(field.getId()).setValue(dataValue).build());
                    } else {
                        componentMessage.addField(EntityData.NameValue.newBuilder().setName(field.getName()).setValue(dataValue).build());
                    }
                    changed = true;
                }
            }
        }
    }
    if (changed) {
        return componentMessage.build();
    }
    return null;
}

Example 7 with Serializer

use of org.terasology.persistence.typeHandling.Serializer in project Terasology by MovingBlocks.

the class EventSerializer method serialize.

/**
 * Serializes an event.
 *
 * @param event
 * @return The serialized event
 * @throws org.terasology.persistence.typeHandling.SerializationException if an error occurs during serialization
 */
public EntityData.Event serialize(Event event) {
    EventMetadata<?> eventMetadata = eventLibrary.getMetadata(event.getClass());
    if (eventMetadata == null) {
        throw new SerializationException("Unregistered event type: " + event.getClass());
    } else if (!eventMetadata.isConstructable()) {
        throw new SerializationException("Cannot serialize event '" + eventMetadata + "' - lacks default constructor so cannot be deserialized");
    }
    EntityData.Event.Builder eventData = EntityData.Event.newBuilder();
    serializeEventType(event, eventData);
    Serializer eventSerializer = typeSerializationLibrary.getSerializerFor(eventMetadata);
    ByteString.Output fieldIds = ByteString.newOutput();
    for (ReplicatedFieldMetadata field : eventMetadata.getFields()) {
        if (field.isReplicated()) {
            EntityData.Value serializedValue = ((ProtobufPersistedData) eventSerializer.serialize(field, event, serializationContext)).getValue();
            if (serializedValue != null) {
                eventData.addFieldValue(serializedValue);
                fieldIds.write(field.getId());
            }
        }
    }
    eventData.setFieldIds(fieldIds.toByteString());
    return eventData.build();
}