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Embedded-Web 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
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*/
package fish.payara.nucleus.microprofile.config.spi;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import jakarta.annotation.Priority;
import org.eclipse.microprofile.config.Config;
import org.eclipse.microprofile.config.spi.ConfigBuilder;
import org.eclipse.microprofile.config.spi.ConfigSource;
import org.eclipse.microprofile.config.spi.Converter;
/**
*
* @author Steve Millidge (Payara Foundation)
*/
public class PayaraConfigBuilder implements ConfigBuilder {
private final LinkedList sources = new LinkedList<>();
private final Map, Converter> converters = new HashMap<>();
private final ConfigProviderResolverImpl resolver;
private ClassLoader loader;
public PayaraConfigBuilder(ConfigProviderResolverImpl resolver, ClassLoader loader) {
this.resolver = resolver;
this.loader = loader;
}
public PayaraConfigBuilder(ConfigProviderResolverImpl resolver) {
this(resolver,Thread.currentThread().getContextClassLoader());
}
@Override
public ConfigBuilder addDefaultSources() {
sources.addAll(resolver.getDefaultSources());
return this;
}
@Override
public ConfigBuilder addDiscoveredSources() {
sources.addAll(resolver.getDiscoveredSources(resolver.getAppInfo(loader)));
return this;
}
@Override
public ConfigBuilder addDiscoveredConverters() {
Map, Converter> discoveredConverters = resolver.getDiscoveredConverters(resolver.getAppInfo(loader));
converters.putAll(discoveredConverters);
return this;
}
@Override
public ConfigBuilder forClassLoader(ClassLoader loader) {
this.loader = loader;
return this;
}
@Override
public ConfigBuilder withSources(ConfigSource... sources) {
this.sources.addAll(Arrays.asList(sources));
return this;
}
@Override
public ConfigBuilder withConverters(Converter... converters) {
addConvertersToMap(Arrays.asList(converters));
return this;
}
@Override
public Config build() {
this.converters.putAll(resolver.getDefaultConverters());
return new PayaraConfig(sources, converters, TimeUnit.SECONDS.toMillis(resolver.getCacheDurationSeconds()));
}
@Override
public ConfigBuilder withConverter(Class type, int i, Converter cnvrtr) {
Converter old = converters.get(type);
if (old != null) {
if (i > getPriority(old)) {
this.converters.put(type, cnvrtr);
}
} else {
this.converters.put(type, cnvrtr);
}
return this;
}
public static Class getTypeForConverter(Converter converter) {
return getTypeForConverter(converter.getClass());
}
public static Class getTypeForConverter(Class converter) {
Type types[] = converter.getGenericInterfaces();
for (Type type : types) {
if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
if (parameterizedType.getRawType() == Converter.class) {
Type forType = parameterizedType.getActualTypeArguments()[0];
if (forType instanceof Class) {
return (Class) forType;
}
if (forType instanceof ParameterizedType) {
return (Class) ((ParameterizedType) forType).getRawType();
}
}
}
}
return null;
}
private static int getPriority(Converter converter) {
int result = 100;
Priority annotation = converter.getClass().getAnnotation(Priority.class);
if (annotation != null) {
result = annotation.value();
}
return result;
}
private void addConvertersToMap(List> convertersList) {
for (Converter converter : convertersList) {
Class type = getTypeForConverter(converter);
if (type != null) {
Converter old = converters.get(type);
if (old != null) {
if (getPriority(converter) > getPriority(old)) {
this.converters.put(type, converter);
}
}else {
this.converters.put(type, converter);
}
}
}
}
}