/**
* Evaluate the initial keys fromMap the configuration and applyChanges it to the field.
*
* @param target the target instance.
* @throws ConfigException if evaluation or conversion failed.
*/
public void applyValue(Object target, boolean resolve) throws ConfigException {
String configValue = InjectionUtils.getConfigValue(this.setterMethod);
Objects.requireNonNull(target);
try {
String evaluatedString =
resolve && configValue != null ? InjectionUtils.evaluateValue(configValue) : configValue;
// Check for adapter/filter
Object value =
InjectionUtils.adaptValue(
this.setterMethod,
TypeLiteral.of(this.setterMethod.getParameterTypes()[0]),
evaluatedString);
AccessController.doPrivileged(
new PrivilegedExceptionAction<Object>() {
@Override
public Object run() throws Exception {
setterMethod.setAccessible(true);
return setterMethod;
}
});
setterMethod.invoke(target, value);
} catch (Exception e) {
throw new ConfigException(
"Failed to annotation configured method: "
+ this.setterMethod.getDeclaringClass().getName()
+ '.'
+ setterMethod.getName(),
e);
}
}
@SuppressWarnings("rawtypes")
public static <T> T adaptValue(
AnnotatedElement element, TypeLiteral<T> targetType, String key, String configValue) {
// Check for adapter/filter
T adaptedValue = null;
WithPropertyConverter converterAnnot = element.getAnnotation(WithPropertyConverter.class);
Class<? extends PropertyConverter<T>> converterType;
if (converterAnnot != null) {
converterType = (Class<? extends PropertyConverter<T>>) converterAnnot.value();
if (!converterType.getName().equals(WithPropertyConverter.class.getName())) {
try {
// TODO cache here...
ConversionContext ctx =
new ConversionContext.Builder(key, targetType).setAnnotatedElement(element).build();
PropertyConverter<T> converter =
PropertyConverter.class.cast(converterType.newInstance());
adaptedValue = converter.convert(configValue, ctx);
} catch (Exception e) {
LOG.log(
Level.SEVERE,
"Failed to convert using explicit PropertyConverter on "
+ element
+ ", trying default conversion.",
e);
}
}
}
if (adaptedValue != null) {
return adaptedValue;
}
if (String.class == targetType.getType()) {
return (T) configValue;
} else {
List<PropertyConverter<T>> converters =
ConfigurationProvider.getConfigurationContext().getPropertyConverters(targetType);
ConversionContext ctx =
new ConversionContext.Builder(ConfigurationProvider.getConfiguration(), key, targetType)
.setAnnotatedElement(element)
.build();
for (PropertyConverter<T> converter : converters) {
adaptedValue = converter.convert(configValue, ctx);
if (adaptedValue != null) {
return adaptedValue;
}
}
throw new ConfigException("Non convertible property type: " + element);
}
}
