fish.payara.microprofile.config.cdi.ConfigProducer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
/*
* 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.nucleus.microprofile.config.spi.ConfigValueResolver;
import fish.payara.nucleus.microprofile.config.spi.InjectedPayaraConfig;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.function.Supplier;
import jakarta.annotation.PostConstruct;
import jakarta.enterprise.context.Dependent;
import jakarta.enterprise.inject.Produces;
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;
import org.glassfish.api.invocation.InvocationManager;
import org.glassfish.internal.api.Globals;
/**
* Class that provides a couple of basic producer methods used for injection of Config
* and the injection of Optional properties.
* @author Steve Millidge
*/
@Dependent
public class ConfigProducer {
private InvocationManager im;
@PostConstruct
public void postConstruct() {
im = Globals.getDefaultHabitat().getService(InvocationManager.class);
}
/**
* Producer method for the application config
* @return The Config object registered for this application
*/
@Produces
public Config getConfig() {
return new InjectedPayaraConfig(ConfigProvider.getConfig(), im.getCurrentInvocation().getAppName());
}
/**
* Producer method for Sets
* @param Type
* @param ip Injection Point
* @return
*/
@Produces
@ConfigProperty
public Set getSetProperty(InjectionPoint ip) {
ConfigProperty property = ip.getAnnotated().getAnnotation(ConfigProperty.class);
Config config = ConfigProvider.getConfig();
Type type = ip.getType();
if (type instanceof ParameterizedType) {
// it is an List, get the element type of the List
@SuppressWarnings("unchecked")
Class elementType = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
String defaultValue = property.defaultValue();
return config.getValue(property.name(), ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.asSet(elementType);
}
return new HashSet<>();
}
/**
* Producer method for Lists
* @param Type
* @param ip Injection Point
* @return
*/
@Produces
@ConfigProperty
public List getListProperty(InjectionPoint ip) {
ConfigProperty property = ip.getAnnotated().getAnnotation(ConfigProperty.class);
Config config = ConfigProvider.getConfig();
Type type = ip.getType();
if (type instanceof ParameterizedType) {
// it is an List, get the element type of the List
@SuppressWarnings("unchecked")
Class elementType = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
String defaultValue = property.defaultValue();
return config.getValue(property.name(), ConfigValueResolver.class)
.throwOnMissingProperty(defaultValue == null)
.throwOnFailedConversion()
.withDefault(defaultValue)
.asList(elementType);
}
return new ArrayList<>();
}
/**
* Produces an Optional for the property specified by the ConfigProperty
* and of the type specified
* @param
* @param ip
* @return
*/
@Produces
@ConfigProperty
public Optional getOptionalProperty(InjectionPoint ip) {
ConfigProperty property = ip.getAnnotated().getAnnotation(ConfigProperty.class);
Config config = ConfigProvider.getConfig();
Type type = ip.getType();
if (type instanceof ParameterizedType) {
// it is an Optional
// get the class of the generic parameterized Optional
@SuppressWarnings("unchecked")
Class valueType = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
String defaultValue = property.defaultValue();
return config.getValue(property.name(), ConfigValueResolver.class)
.throwOnFailedConversion()
.withDefault(defaultValue)
.as(valueType);
}
return Optional.empty();
}
/**
* Produces an Supplier for the property specified by the ConfigProperty
* and of the type specified
* @param
* @param ip
* @return
*/
@Produces
@ConfigProperty
public Supplier getPropertySupplier(InjectionPoint ip) {
ConfigProperty property = ip.getAnnotated().getAnnotation(ConfigProperty.class);
Config config = ConfigProvider.getConfig();
Type type = ip.getType();
if (type instanceof ParameterizedType) {
// it is an Optional
// get the class of the generic parameterized Optional
@SuppressWarnings("unchecked")
Class valueType = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
String defaultValue = property.defaultValue();
return config.getValue(property.name(), ConfigValueResolver.class)
.throwOnFailedConversion()
.withDefault(defaultValue)
.asSupplier(valueType);
}
// Should never be called
return () -> null;
}
}