fish.payara.microprofile.config.cdi.ConfigPropertyProducer Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2017-2021 Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://github.com/payara/Payara/blob/master/LICENSE.txt
* See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* The Payara Foundation designates this particular file as subject to the "Classpath"
* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
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;
}
}