blueprint/blueprint-maven-plugin/src/main/java/org/apache/aries/blueprint/plugin/Extensions.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.aries.blueprint.plugin;

import org.apache.aries.blueprint.plugin.model.AbstractTransactionalFactory;
import org.apache.aries.blueprint.plugin.model.ExtensionTransactionFactory;
import org.apache.aries.blueprint.plugin.spi.BeanAttributesResolver;
import org.apache.aries.blueprint.plugin.spi.BeanFinder;
import org.apache.aries.blueprint.plugin.spi.InjectLikeHandler;
import org.apache.aries.blueprint.plugin.spi.NamedLikeHandler;
import org.apache.aries.blueprint.plugin.spi.TransactionalFactory;
import org.apache.aries.blueprint.plugin.spi.ValueInjectionHandler;

import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;
import java.util.ServiceLoader;

public class Extensions {
    public static final List<Class<? extends Annotation>> beanMarkingAnnotationClasses = new ArrayList<>();
    public static final List<Class<? extends Annotation>> singletons = new ArrayList<>();
    public static final List<AbstractTransactionalFactory> transactionalFactories = new ArrayList<>();
    public static final List<BeanAttributesResolver> beanAttributesResolvers = new ArrayList<>();
    public static final List<InjectLikeHandler<? extends Annotation>> beanInjectLikeHandlers = new ArrayList<>();
    public static final List<NamedLikeHandler> namedLikeHandlers = new ArrayList<>();
    public static final List<ValueInjectionHandler<? extends Annotation>> valueInjectionHandlers = new ArrayList<>();

    static {
        for (BeanFinder beanFinder : ServiceLoader.load(BeanFinder.class)) {
            beanMarkingAnnotationClasses.add(beanFinder.beanAnnotation());
            if (beanFinder.isSingleton()) {
                singletons.add(beanFinder.beanAnnotation());
            }
        }

        for (TransactionalFactory transactionalFactory : ServiceLoader.load(TransactionalFactory.class)) {
            transactionalFactories.add(new ExtensionTransactionFactory(transactionalFactory));
        }

        for (BeanAttributesResolver beanAttributesResolverExtenstion : ServiceLoader.load(BeanAttributesResolver.class)) {
            beanAttributesResolvers.add(beanAttributesResolverExtenstion);
        }

        for (InjectLikeHandler<? extends Annotation> injectLikeHandler : ServiceLoader.load(InjectLikeHandler.class)) {
            beanInjectLikeHandlers.add(injectLikeHandler);
        }

        for (NamedLikeHandler namedLikeHandler : ServiceLoader.load(NamedLikeHandler.class)) {
            namedLikeHandlers.add(namedLikeHandler);
        }

        for (ValueInjectionHandler<? extends Annotation> valueInjectionHandler : ServiceLoader.load(ValueInjectionHandler.class)) {
            valueInjectionHandlers.add(valueInjectionHandler);
        }
    }
}