/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jstl.rt;
import com.caucho.jsp.PageContextImpl;
import com.caucho.xpath.Env;
import com.caucho.xpath.Expr;
import com.caucho.xpath.XPath;
import org.w3c.dom.Node;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
import javax.el.ELException;
import java.util.Iterator;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.io.IOException;
public class XmlOutTag extends TagSupport {
private static final Logger log
= Logger.getLogger(XmlOutTag.class.getName());
// private Expr _select;
private Expr _select;
private boolean _escapeXml = true;
/**
* Sets the JSP-EL expression value.
* @throws XPathExpressionException
*/
public void setSelect(Expr select)
{
_select = select;
}
/**
* Sets true if XML should be escaped.
*/
public void setEscapeXml(boolean escapeXml)
{
_escapeXml = escapeXml;
}
/**
* Process the tag.
*/
public int doStartTag()
throws JspException
{
try {
PageContextImpl pageContext = (PageContextImpl) this.pageContext;
JspWriter out = pageContext.getOut();
Node node = pageContext.getNodeEnv();
Env env = XPath.createEnv();
env.setVarEnv(pageContext.getVarEnv());
String value = _select.evalString(node, env);
env.free();
if (_escapeXml)
com.caucho.el.Expr.toStreamEscaped(out, value);
else
out.print(value);
}
catch (Exception e) {
throw new JspException(e);
}
return SKIP_BODY;
}
}