org.gbif.portal.web.download.NestedField.java Source code

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Here is the source code for org.gbif.portal.web.download.NestedField.java

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/***************************************************************************
 * Copyright (C) 2005 Global Biodiversity Information Facility Secretariat.
 * All Rights Reserved.
 *
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 ***************************************************************************/
package org.gbif.portal.web.download;

import java.lang.reflect.Method;
import java.util.Locale;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.lang.StringUtils;
import org.springframework.context.MessageSource;

/**
 * Retrieves the value from a nested bean.
 *  
 * @author dmartin
 */
public class NestedField extends Field {

    protected String nestedBeanName;

    /**
     * @see org.gbif.portal.web.download.Field#getRenderValue(javax.servlet.http.HttpServletRequest, org.springframework.context.MessageSource, java.util.Locale, java.lang.Object)
     */
    @Override
    public String getRenderValue(HttpServletRequest request, MessageSource messageSource, Locale locale,
            Object bean) {
        try {
            String beanName = StringUtils.capitalize(nestedBeanName);
            Method getter = bean.getClass().getMethod("get" + beanName, (Class[]) null);
            Object nestedBean = getter.invoke(bean, (Object[]) null);
            String propertyValue = BeanUtils.getProperty(nestedBean, fieldName);
            return getFieldValue(messageSource, locale, propertyValue);
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            return null;
        }
    }

    /**
     * @return the nestedBeanName
     */
    public String getNestedBeanName() {
        return nestedBeanName;
    }

    /**
     * @param nestedBeanName the nestedBeanName to set
     */
    public void setNestedBeanName(String nestedBeanName) {
        this.nestedBeanName = nestedBeanName;
    }
}