[Ejtools-cvs] CVS: libraries/xmlweb/src/main/net/sourceforge/ejtools/xml/taglib BeanContextXmlProxyTag.java,NONE,1.1 XslApplyTag.java,NONE,1.1

[Laurent E. <let...@us...>]

Update of /cvsroot/ejtools/libraries/xmlweb/src/main/net/sourceforge/ejtools/xml/taglib
In directory usw-pr-cvs1:/tmp/cvs-serv28818

Added Files:
	BeanContextXmlProxyTag.java XslApplyTag.java 
Log Message:
Initial Import

--- NEW FILE: BeanContextXmlProxyTag.java ---
package net.sourceforge.ejtools.xml.taglib;

import java.beans.beancontext.*;
import java.io.*;
import java.util.*;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import org.w3c.dom.*;

import com.sun.xml.tree.*;
import net.sourceforge.ejtools.xml.*;
import net.sourceforge.ejtools.xml.beans.*;

/**
 *  Description of the Class
 *
 * @author     letiembl
 * @created    26 février 2002
 */
public class BeanContextXmlProxyTag extends TagSupport
{
   /**  Description of the Field */
   protected String id = null;


   /**  Constructor for the BeanContextXmlProxyTag object */
   public BeanContextXmlProxyTag() { }


   /**
    *  Setter for the id attribute
    *
    * @param  id  The new value for id attribute
    */
   public void setId(String id)
   {
      this.id = id;
   }


   /**
    *  Getter for the id attribute
    *
    * @return    The value of id attribute
    */
   public String getId()
   {
      return id;
   }


   /**
    *  Description of the Method
    *
    * @return                   Description of the Returned Value
    * @exception  JspException  Description of Exception
    */
   public int doStartTag() throws JspException
   {
      return SKIP_BODY;
   }


   /**
    *  Description of the Method
    *
    * @return                   Description of the Returned Value
    * @exception  JspException  Description of Exception
    */
   public int doEndTag() throws JspException
   {
      try
      {
         Object o = null;
         BeanContextXmlProxy object = null;

         if ((o = pageContext.getAttribute(id)) != null)
         {
            object = (BeanContextXmlProxy) o;
         }
         else if ((o = pageContext.getSession().getAttribute(id)) != null)
         {
            object = (BeanContextXmlProxy) o;
         }
         else if ((o = pageContext.getServletContext().getAttribute(id)) != null)
         {
            object = (BeanContextXmlProxy) o;
         }

         if (object != null)
         {
            XmlDocument doc = new XmlDocument();

            XmlComponent comp = object.getXmlProxy();
            comp.appendTo(doc);

            doc.writeXml(new XmlWriteContext(pageContext.getOut(), 3));
         }
      }
      catch (Exception e)
      {
         e.printStackTrace();
      }

      return (EVAL_PAGE);
   }
}


--- NEW FILE: XslApplyTag.java ---
package net.sourceforge.ejtools.xml.taglib;

import java.beans.beancontext.*;
import java.io.*;
import java.util.*;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;

/**
 *  Description of the Class
 *
 * @author     letiembl
 * @created    28 février 2002
 */
public class XslApplyTag extends BodyTagSupport
{
   private Transformer transformer = null;
   /**  The body content of this tag */
   private String body = null;
   /**  The name of the XSL stylesheet bean. */
   private String xsl = null;


   /**
    *  Setter for the xsl attribute
    *
    * @param  xsl  The new value for xsl attribute
    */
   public void setXsl(String xsl)
   {
      this.xsl = xsl;
   }


   /**
    *  Getter for the xsl attribute
    *
    * @return    The value of xsl attribute
    */
   public String getXsl()
   {
      return xsl;
   }


   /**
    *  Validate the attributes that were specified for consistency. Evaluate the
    *  body content of this tag if we will be using it as the XML data source;
    *  otherwise skip it.
    *
    * @return                   Description of the Returned Value
    * @exception  JspException  if a JSP error occurs
    */
   public int doStartTag() throws JspException
   {
      try
      {
         TransformerFactory tFactory = TransformerFactory.newInstance();
         transformer = tFactory.newTransformer(new StreamSource(xsl));
      }
      catch (Exception e)
      {
         throw new JspException(e.toString());
      }

      return (EVAL_BODY_TAG);
   }


   /**
    *  Save the body content that has been processed, but do not iterate.
    *
    * @return                   Description of the Returned Value
    * @exception  JspException  if a JSP error has occurred
    */
   public int doAfterBody() throws JspException
   {
      body = bodyContent.getString().trim();

      System.out.println(body);

      return (SKIP_BODY);
   }


   /**
    *  Finish up by performing the transformation and rendering the output.
    *
    * @return                   Description of the Returned Value
    * @exception  JspException  if a JSP exception occurs
    */
   public int doEndTag() throws JspException
   {
      try
      {
         // Prepare an input source for the data
         StreamSource data = new StreamSource(new StringReader(body));

         // Prepare an output source for the results
         StreamResult result = new StreamResult(pageContext.getOut());

         transformer.transform(data, result);
      }
      catch (Exception e)
      {
         throw new JspException(e.toString());
      }
      return (EVAL_PAGE);
   }


   /**  Release any allocated resources. */
   public void release()
   {
      this.body = null;
   }
}