package com.instantbank.collections.main.web;

import java.io.IOException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import org.w3c.dom.Node;

public class ValueOfElementTag extends TagSupport {
  private Node element = null;


  public void setElement(Node element) {
    this.element = element;
  }


  public int doStartTag() throws JspException {
    String value;

    if(element.getNodeType() == Node.ELEMENT_NODE) {
      value = getElementText(element);
    }
    else {
      value = "";
    }
    try {
      pageContext.getOut().print(value);
    }
    catch(IOException e) {
      throw new JspException(e.getMessage());
    }
    return SKIP_BODY;
  }


  public void release() {
    element = null;
  }


  public String getElementText(Node element) {
    Node child = element.getFirstChild();
    String text = null;

    if(child != null) {
      text = child.getNodeValue();
    }

    return text;
  }
}