private FieldBridge getFieldBridgeFromBridgeProvider(
BridgeProvider bridgeProvider,
ExtendedBridgeProvider.ExtendedBridgeProviderContext context,
ContainerType containerType) {
FieldBridge bridge = bridgeProvider.provideFieldBridge(context);
if (bridge == null) {
return null;
}
populateReturnType(context.getReturnType(), bridge.getClass(), bridge);
switch (containerType) {
case SINGLE:
return bridge;
case ITERABLE:
// Should we cache these per bridge instance?
// would make sense at least for the known built-in bridges
// but is that worth it?
return new BuiltinIterableBridge(bridge);
case ARRAY:
return new BuiltinArrayBridge(bridge);
case MAP:
return new BuiltinMapBridge(bridge);
default:
throw new AssertionFailure("Unknown ContainerType " + containerType);
}
}
public FieldBridge guessType(
Field field,
NumericField numericField,
XMember member,
ReflectionManager reflectionManager,
ServiceManager serviceManager) {
FieldBridge bridge = findExplicitFieldBridge(field, member, reflectionManager);
if (bridge != null) {
return bridge;
}
ExtendedBridgeProvider.ExtendedBridgeProviderContext context =
new XMemberBridgeProviderContext(member, numericField, reflectionManager, serviceManager);
ContainerType containerType = getContainerType(member, reflectionManager);
// We do annotation based providers as Tike at least needs priority over
// default providers because it might override the type for String
// TODO: introduce the notion of bridge contributor annotations to cope with this in the future
for (BridgeProvider provider : annotationBasedProviders) {
bridge = getFieldBridgeFromBridgeProvider(provider, context, containerType);
if (bridge != null) {
return bridge;
}
}
// walk through all regular bridges and if multiple match
// raise an exception containing the conflicting bridges
StringBuilder multipleMatchError = null;
BridgeProvider initialMatchingBridgeProvider = null;
for (BridgeProvider provider : regularProviders) {
FieldBridge createdBridge =
getFieldBridgeFromBridgeProvider(provider, context, containerType);
if (createdBridge != null) {
// oops we found a duplicate
if (bridge != null) {
// first duplicate, add the initial bridge
if (multipleMatchError == null) {
multipleMatchError =
new StringBuilder("\n")
.append("FieldBridge: ")
.append(bridge)
.append(" - BridgeProvider: ")
.append(initialMatchingBridgeProvider.getClass());
}
multipleMatchError
.append("\n")
.append("FieldBridge: ")
.append(createdBridge)
.append(" - BridgeProvider: ")
.append(provider.getClass());
} else {
bridge = createdBridge;
initialMatchingBridgeProvider = provider;
}
}
}
if (multipleMatchError != null) {
throw LOG.multipleMatchingFieldBridges(
member, member.getType(), multipleMatchError.toString());
}
if (bridge != null) {
return bridge;
}
throw LOG.unableToGuessFieldBridge(member.getType().getName(), member.getName());
}
