/*
 * Copyright (c) 2002-2012 Alibaba Group Holding Limited.
 * All rights reserved.
 *
 * 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 com.alibaba.citrus.service.freemarker.support;

import com.alibaba.citrus.service.freemarker.impl.TemplateContextAdapter;
import com.alibaba.citrus.service.template.Renderable;
import com.alibaba.citrus.service.template.TemplateContext;
import freemarker.ext.beans.BeansWrapper;
import freemarker.template.ObjectWrapper;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;

public class DefaultBeansWrapper extends BeansWrapper {
    private final ObjectWrapper userDefinedWrapper;

    public DefaultBeansWrapper(ObjectWrapper userDefinedWrapper) {
        this.userDefinedWrapper = userDefinedWrapper;
    }

    @Override
    public TemplateModel wrap(Object obj) throws TemplateModelException {
        if (obj instanceof TemplateContext) {
            return new TemplateContextAdapter((TemplateContext) obj, this);
        }

        if (obj instanceof Renderable) {
            return new RenderableModel((Renderable) obj, this);
        }

        if (userDefinedWrapper != null) {
            return userDefinedWrapper.wrap(obj);
        } else {
            return super.wrap(obj);
        }
    }
}