private FieldBridge doExtractType(
org.hibernate.search.annotations.FieldBridge bridgeAnn,
String appliedOnName,
Class<?> appliedOnType) {
assert bridgeAnn != null : "@FieldBridge instance cannot be null";
FieldBridge bridge;
Class<?> impl = bridgeAnn.impl();
if (impl == void.class) {
throw LOG.noImplementationClassInFieldBridge(appliedOnName);
}
try {
Object instance = impl.newInstance();
if (FieldBridge.class.isAssignableFrom(impl)) {
bridge = (FieldBridge) instance;
} else if (TwoWayStringBridge.class.isAssignableFrom(impl)) {
bridge = new TwoWayString2FieldBridgeAdaptor((TwoWayStringBridge) instance);
} else if (org.hibernate.search.bridge.StringBridge.class.isAssignableFrom(impl)) {
bridge = new String2FieldBridgeAdaptor((org.hibernate.search.bridge.StringBridge) instance);
} else {
throw LOG.noFieldBridgeInterfaceImplementedByFieldBridge(impl.getName(), appliedOnName);
}
if (bridgeAnn.params().length > 0 && ParameterizedBridge.class.isAssignableFrom(impl)) {
Map<String, String> params = new HashMap<String, String>(bridgeAnn.params().length);
for (Parameter param : bridgeAnn.params()) {
params.put(param.name(), param.value());
}
((ParameterizedBridge) instance).setParameterValues(params);
}
populateReturnType(appliedOnType, impl, instance);
} catch (Exception e) {
throw LOG.unableToInstantiateFieldBridge(appliedOnName, appliedOnType.getName(), e);
}
return bridge;
}
