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Embedded-Web Distribution of the Payara Project
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package fish.payara.microprofile.config.cdi;
import fish.payara.microprofile.config.cdi.model.ConfigPropertyModel;
import fish.payara.nucleus.microprofile.config.spi.ConfigValueResolver;
import static fish.payara.nucleus.microprofile.config.spi.ConfigValueResolver.ElementPolicy.FAIL;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Optional;
import java.util.OptionalDouble;
import java.util.OptionalInt;
import java.util.OptionalLong;
import java.util.Set;
import java.util.function.Supplier;
import jakarta.enterprise.context.Dependent;
import jakarta.enterprise.inject.spi.DeploymentException;
import jakarta.enterprise.inject.spi.InjectionPoint;
import org.eclipse.microprofile.config.Config;
import org.eclipse.microprofile.config.ConfigProvider;
import org.eclipse.microprofile.config.inject.ConfigProperty;
/**
* This class is used as the template for synthetic beans when creating a bean
* for each converter type registered in the Config
* @author Steve Millidge (Payara Foundation)
*/
public class ConfigPropertyProducer {
/**
* General producer method for injecting a property into a field annotated
* with the @ConfigProperty annotation.
* Note this does not have @Produces annotation as a synthetic bean using this method
* is created in the CDI Extension.
* @param ip
* @return
*/
@ConfigProperty
@Dependent
public static final Object getGenericProperty(InjectionPoint ip) {
ConfigPropertyModel property = new ConfigPropertyModel(ip);
return getGenericPropertyFromModel(property);
}
public static final Object getGenericPropertyFromModel(ConfigPropertyModel property) {
Object result = null;
Config config = ConfigProvider.getConfig();
String name = property.getName();
Type type = property.getInjectionPoint().getType();
String defaultValue = property.getDefaultValue();
if (type instanceof Class) {
if (type == OptionalDouble.class) {
result = config.getValue(property.getName(), ConfigValueResolver.class)
.throwOnFailedConversion()
.withDefault(property.getDefaultValue())
.as(OptionalDouble.class)
.orElse(OptionalDouble.empty());
} else if (type == OptionalInt.class) {
result = config.getValue(property.getName(), ConfigValueResolver.class)
.throwOnFailedConversion()
.withDefault(property.getDefaultValue())
.as(OptionalInt.class)
.orElse(OptionalInt.empty());
} else if (type == OptionalLong.class) {
result = config.getValue(property.getName(), ConfigValueResolver.class)
.throwOnFailedConversion()
.withDefault(property.getDefaultValue())
.as(OptionalLong.class)
.orElse(OptionalLong.empty());
} else {
result = config.getValue(name, ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.withPolicy(FAIL)
.as((Class)type)
.get();
}
} else if (type instanceof ParameterizedType) {
ParameterizedType ptype = (ParameterizedType)type;
Type rawType = ptype.getRawType();
if (List.class.equals(rawType)) {
result = config.getValue(name, ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.withPolicy(FAIL)
.asList(getElementTypeFrom(ptype));
} else if (Set.class.equals(rawType)) {
result = config.getValue(name, ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.withPolicy(FAIL)
.asSet(getElementTypeFrom(ptype));
} else if (Supplier.class.equals(rawType)) {
result = config.getValue(name, ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.withPolicy(FAIL)
.asSupplier(getElementTypeFrom(ptype));
} else if (Optional.class.equals(rawType)) {
result = config.getValue(name, ConfigValueResolver.class)
.throwOnMissingProperty(false)
.throwOnFailedConversion()
.withDefault(defaultValue)
.withPolicy(FAIL)
.as(getElementTypeFrom(ptype));
} else {
result = config.getValue(name, (Class) rawType);
}
}
if (result == null) {
throw new DeploymentException("Microprofile Config Property " + property.getName() + " can not be found");
}
return result;
}
private static Class getElementTypeFrom(ParameterizedType collectionType) {
Type elementType = collectionType.getActualTypeArguments()[0];
if (!(elementType instanceof Class)) {
throw new DeploymentException(
"Only config values of lists and sets of non generic types (Class types) are supported but found: "
+ collectionType);
}
return (Class) elementType;
}
}