Package br.net.woodstock.rockframework.web.jsp.taglib.creator

Source Code of br.net.woodstock.rockframework.web.jsp.taglib.creator.TLDBuilderImpl

/*
* This file is part of rockframework.
*
* rockframework is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* rockframework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>;.
*/
package br.net.woodstock.rockframework.web.jsp.taglib.creator;

import javax.servlet.jsp.tagext.JspTag;

import br.net.woodstock.rockframework.core.RockFrameworkLogger;
import br.net.woodstock.rockframework.core.reflection.BeanDescriptor;
import br.net.woodstock.rockframework.core.reflection.PropertyDescriptor;
import br.net.woodstock.rockframework.core.reflection.impl.BeanDescriptorBuilder;
import br.net.woodstock.rockframework.core.util.Assert;
import br.net.woodstock.rockframework.core.utils.Conditions;
import br.net.woodstock.rockframework.core.xml.dom.XmlDocument;
import br.net.woodstock.rockframework.core.xml.dom.XmlElement;

class TLDBuilderImpl extends TLDBuilder {

  public TLDBuilderImpl() {
    super();
  }

  @Override
  public String create(final Class<?> clazz) {
    Assert.notNull(clazz, "clazz");
    if (!clazz.isAnnotationPresent(Tag.class)) {
      throw new IllegalArgumentException("Class " + clazz + " must be annoted with @" + Tag.class.getCanonicalName());
    }

    if (!JspTag.class.isAssignableFrom(clazz)) {
      RockFrameworkLogger.getLogger().info("Class " + clazz.getCanonicalName() + " is not not a child of " + JspTag.class.getCanonicalName());
    }

    Tag tag = clazz.getAnnotation(Tag.class);

    XmlDocument document = new XmlDocument("tag");
    XmlElement root = document.getRoot();

    if (Conditions.isNotEmpty(tag.description())) {
      root.addElement("description").setData(tag.description());
    }

    root.addElement("name").setData(tag.name());
    root.addElement("tag-class").setData(clazz.getCanonicalName());
    root.addElement("body-content").setData(tag.content());

    if (tag.dynamicAttributes()) {
      root.addElement("dynamic-attributes").setData(Boolean.valueOf(tag.dynamicAttributes()));
    }

    BeanDescriptor beanDescriptor = new BeanDescriptorBuilder(clazz).getBeanDescriptor();

    for (PropertyDescriptor propertyDescriptor : beanDescriptor.getProperties()) {
      if (!propertyDescriptor.isAnnotationPresent(Attribute.class)) {
        continue;
      }

      Attribute tldAttribute = propertyDescriptor.getAnnotation(Attribute.class);
      XmlElement e = root.addElement("attribute");

      if (Conditions.isNotEmpty(tldAttribute.description())) {
        e.addElement("description").setData(tldAttribute.description());
      }

      e.addElement("name").setData(propertyDescriptor.getName());
      e.addElement("required").setData(Boolean.valueOf(tldAttribute.required()));
      e.addElement("rtexprvalue").setData(Boolean.valueOf(tldAttribute.rtexprvalue()));
      if ((!tldAttribute.rtexprvalue()) && (tldAttribute.type() != String.class)) {
        e.addElement("type").setData(tldAttribute.type().getCanonicalName());
      }
    }

    return document.toString();
  }
}
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