/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed 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 io.undertow.servlet.api;

import io.undertow.servlet.UndertowServletMessages;
import io.undertow.servlet.util.ConstructorInstanceFactory;

import java.lang.reflect.Constructor;
import java.util.Set;

import javax.servlet.ServletContainerInitializer;

Author:
Stuart Douglas/**
 * @author Stuart Douglas
 */
public class ServletContainerInitializerInfo {

    private final Class<? extends ServletContainerInitializer> servletContainerInitializerClass;
    private final InstanceFactory<? extends ServletContainerInitializer> instanceFactory;
    private final Set<Class<?>> handlesTypes;

    public ServletContainerInitializerInfo(final Class<? extends ServletContainerInitializer> servletContainerInitializerClass, final InstanceFactory<? extends ServletContainerInitializer> instanceFactory, final Set<Class<?>> handlesTypes) {
        this.servletContainerInitializerClass = servletContainerInitializerClass;
        this.instanceFactory = instanceFactory;
        this.handlesTypes = handlesTypes;
    }

    public ServletContainerInitializerInfo(final Class<? extends ServletContainerInitializer> servletContainerInitializerClass, final Set<Class<?>> handlesTypes) {
        this.servletContainerInitializerClass = servletContainerInitializerClass;
        this.handlesTypes = handlesTypes;

        try {
            final Constructor<ServletContainerInitializer> ctor = (Constructor<ServletContainerInitializer>) servletContainerInitializerClass.getDeclaredConstructor();
            ctor.setAccessible(true);
            this.instanceFactory = new ConstructorInstanceFactory<>(ctor);
        } catch (NoSuchMethodException e) {
            throw UndertowServletMessages.MESSAGES.componentMustHaveDefaultConstructor("ServletContainerInitializer", servletContainerInitializerClass);
        }
    }

    public Class<? extends ServletContainerInitializer> getServletContainerInitializerClass() {
        return servletContainerInitializerClass;
    }

    
Returns the actual types present in the deployment that are handled by this ServletContainerInitializer. (i.e. not the types in the HandlesTypes annotation, but rather actual types the container has discovered that meet the criteria) 
Returns:
The handled types/**
     * Returns the actual types present in the deployment that are handled by this ServletContainerInitializer.
     *
     * (i.e. not the types in the {@link javax.servlet.annotation.HandlesTypes} annotation, but rather actual types
     * the container has discovered that meet the criteria)
     *
     * @return The handled types
     */
    public Set<Class<?>> getHandlesTypes() {
        return handlesTypes;
    }

    public InstanceFactory<? extends ServletContainerInitializer> getInstanceFactory() {
        return instanceFactory;
    }
}