/*
* 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.el;
import com.caucho.el.Expr;
import com.caucho.jsp.BodyContentImpl;
import com.caucho.jsp.PageContextImpl;
import javax.el.ELContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;
import java.util.logging.Level;
import java.util.logging.Logger;
public class CoreOutTag extends BodyTagSupport {
private static final Logger log
= Logger.getLogger(CoreOutTag.class.getName());
private Expr _value;
private Expr _escapeXml;
private Expr _defaultValue;
/**
* Sets the JSP-EL expression value.
*/
public void setValue(Expr value)
{
_value = value;
}
/**
* Sets true if XML should be escaped.
*/
public void setEscapeXml(Expr value)
{
_escapeXml = value;
}
/**
* Sets the default value.
*/
public void setDefault(Expr value)
{
_defaultValue = value;
}
/**
* Process the tag.
*/
public int doStartTag()
throws JspException
{
try {
PageContextImpl pageContext = (PageContextImpl) this.pageContext;
ELContext env = pageContext.getELContext();
JspWriter out = pageContext.getOut();
boolean doEscape = (_escapeXml == null || _escapeXml.evalBoolean(env));
if (! _value.print(out, env, doEscape)) {
}
else if (_defaultValue != null)
_defaultValue.print(out, env, doEscape);
else
return EVAL_BODY_BUFFERED;
} catch (Exception e) {
log.log(Level.WARNING, e.toString(), e);
}
return SKIP_BODY;
}
public int doEndTag() throws JspException
{
try {
PageContextImpl pageContext = (PageContextImpl) this.pageContext;
ELContext env = pageContext.getELContext();
JspWriter out = pageContext.getOut();
BodyContentImpl body = (BodyContentImpl) getBodyContent();
if (body != null) {
boolean doEscape = (_escapeXml == null || _escapeXml.evalBoolean(env));
String s = body.getString().trim();
if (doEscape)
Expr.toStreamEscaped(out, s);
else
out.print(s);
}
} catch (Exception e) {
}
return EVAL_PAGE;
}
}