private void initializeWriters() {
List<EventPropertyDescriptor> writables = new ArrayList<EventPropertyDescriptor>();
Map<String, Pair<EventPropertyDescriptor, EventPropertyWriter>> writerMap =
new HashMap<String, Pair<EventPropertyDescriptor, EventPropertyWriter>>();
writables.addAll(Arrays.asList(underlyingMapType.getWriteableProperties()));
for (EventPropertyDescriptor writableMapProp : underlyingMapType.getWriteableProperties()) {
final String propertyName = writableMapProp.getPropertyName();
writables.add(writableMapProp);
EventPropertyWriter writer =
new EventPropertyWriter() {
public void write(Object value, EventBean target) {
DecoratingEventBean decorated = (DecoratingEventBean) target;
decorated.getDecoratingProperties().put(propertyName, value);
}
};
writerMap.put(
propertyName,
new Pair<EventPropertyDescriptor, EventPropertyWriter>(writableMapProp, writer));
}
if (underlyingEventType instanceof EventTypeSPI) {
EventTypeSPI spi = (EventTypeSPI) underlyingEventType;
for (EventPropertyDescriptor writableUndProp : spi.getWriteableProperties()) {
final String propertyName = writableUndProp.getPropertyName();
final EventPropertyWriter innerWriter = spi.getWriter(propertyName);
if (innerWriter == null) {
continue;
}
writables.add(writableUndProp);
EventPropertyWriter writer =
new EventPropertyWriter() {
public void write(Object value, EventBean target) {
DecoratingEventBean decorated = (DecoratingEventBean) target;
innerWriter.write(value, decorated.getUnderlyingEvent());
}
};
writerMap.put(
propertyName,
new Pair<EventPropertyDescriptor, EventPropertyWriter>(writableUndProp, writer));
}
}
writers = writerMap;
writableProperties = writables.toArray(new EventPropertyDescriptor[writables.size()]);
}
public EventBeanWriter getWriter(String[] properties) {
if (writableProperties == null) {
initializeWriters();
}
boolean isOnlyMap = true;
for (int i = 0; i < properties.length; i++) {
if (!writers.containsKey(properties[i])) {
return null;
}
if (underlyingMapType.getWritableProperty(properties[i]) == null) {
isOnlyMap = false;
}
}
boolean isOnlyUnderlying = true;
if (!isOnlyMap) {
EventTypeSPI spi = (EventTypeSPI) underlyingEventType;
for (int i = 0; i < properties.length; i++) {
if (spi.getWritableProperty(properties[i]) == null) {
isOnlyUnderlying = false;
}
}
}
if (isOnlyMap) {
return new WrapperEventBeanMapWriter(properties);
}
if (isOnlyUnderlying) {
EventTypeSPI spi = (EventTypeSPI) underlyingEventType;
EventBeanWriter undWriter = spi.getWriter(properties);
if (undWriter == null) {
return undWriter;
}
return new WrapperEventBeanUndWriter(undWriter);
}
EventPropertyWriter writerArr[] = new EventPropertyWriter[properties.length];
for (int i = 0; i < properties.length; i++) {
writerArr[i] = writers.get(properties[i]).getSecond();
}
return new WrapperEventBeanPropertyWriter(writerArr);
}