/**
 * Copyright 2013-2014 Guoqiang Chen, Shanghai, China. All rights reserved.
 *
 * Email: subchen@gmail.com
 * URL: http://subchen.github.io/
 *
 * 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 jetbrick.web.mvc.action.annotations;

import jetbrick.ioc.annotations.Managed;
import jetbrick.lang.ExceptionUtils;
import jetbrick.reflect.KlassInfo;
import jetbrick.web.mvc.RequestContext;

@Managed
public class RequestFormArgumentGetter implements AnnotatedArgumentGetter<RequestForm, Object> {
    private KlassInfo klass;

    @Override
    public void initialize(ArgumentContext<RequestForm> ctx) {
        this.klass = KlassInfo.create(ctx.getRawParameterType());
    }

    @Override
    public Object get(RequestContext ctx) {
        try {
            Object form = klass.newInstance();
            return ctx.getForm(form);
        } catch (Exception e) {
            throw ExceptionUtils.unchecked(e);
        }
    }
}