package com.instantbank.collections.main.web;

import java.io.IOException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import oracle.xml.parser.v2.XMLDocument;
import oracle.xml.parser.v2.XMLNode;
import org.w3c.dom.Node;
import com.instantbank.collections.util.StringFormat;

public class ValueOfTag extends TagSupport {
  private String name = null;
  private XMLNode node = null;


  public void setName(String name) {
    this.name = name;
  }


  public void setNode(Node node) {
    XMLDocument root;

    if(node instanceof XMLDocument) {
      root = (XMLDocument)node;
      this.node = (XMLNode)root.getDocumentElement();
    }
    else {
      this.node = (XMLNode)node;
    }
  }


  public int doStartTag() throws JspException {
    String value;

    try {
      value = StringFormat.toSafeJavaString(node.valueOf("./" + name));
      if(value == null) {
        value = "";
      }
    }
    catch(Exception e) {
      value = "";
    }
    try {
      pageContext.getOut().print(value);
    }
    catch(IOException e) {
      throw new JspException(e.getMessage());
    }
    return SKIP_BODY;
  }


  public void release() {
    node = null;
    name = null;
  }
}