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/*
 * Copyright 2014-2022 the original author or authors.
 *
 * 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
 *
 *      https://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.grails.web.converters

import javax.servlet.http.HttpServletRequest

import groovy.transform.CompileStatic

import grails.converters.JSON
import grails.converters.XML

import org.grails.web.servlet.mvc.GrailsWebRequest

/**
 * An extension that adds methods to the {@link HttpServletRequest} object
 *
 * @author Jeff Brown
 * @author Graeme Rocher
 * @since 3.0
 */
@CompileStatic
class ConvertersExtension {

    static getJSON(HttpServletRequest request) {
        JSON.parse(request)
    }

    static getXML(HttpServletRequest request) {
        XML.parse(request)
    }

    static  T asType(instance, Class clazz) {
        if (ConverterUtil.isConverterClass(clazz)) {
            return ConverterUtil.createConverter(clazz,
                    instance,
                    GrailsWebRequest.lookup()?.applicationContext)
        }

        (T) ConverterUtil.invokeOriginalAsTypeMethod(instance, clazz)
    }

    static  T asType(Object[] array, Class clazz) {
        asType((Object) array, clazz)
    }

}