/*
* 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.jsp.java;
import com.caucho.jsp.JspParseException;
import com.caucho.xml.QName;
abstract public class JstlNode extends JspContainerNode {
/**
* True if this is a jstl node.
*/
public boolean isJstl()
{
return true;
}
/**
* Adds an attribute.
*/
public void addAttribute(QName name, String value)
throws JspParseException
{
throw error(L.l("`{0}' is an unknown attribute for <{1}>.",
name.getName(), getTagName()));
}
/**
* Generates the code to set a non-null value.
*
* @param out the writer to the *.java file
* @param var the EL name
* @param scope the scope name
* @param value the value
*/
protected void generateSetNotNull(JspJavaWriter out, String var,
String scope, String value)
throws Exception
{
if (var == null) {
}
else if (scope == null || scope.equals("page")) {
out.println("pageContext.setAttribute(\"" + var + "\", " + value + ");");
}
else if (scope.equals("request")) {
out.println("pageContext.getRequest().setAttribute(\"" + var + "\", " + value + ");");
}
else if (scope.equals("session")) {
out.println("pageContext.getSession().setAttribute(\"" + var + "\", " + value + ");");
}
else if (scope.equals("application")) {
out.println("pageContext.getServletContext().setAttribute(\"" + var + "\", " + value + ");");
}
else
throw error(L.l("invalid scope `{0}'", scope));
}
protected void generateSetOrRemove(JspJavaWriter out,
String var, String scope,
String value)
throws Exception
{
if (var == null) {
}
else if (scope == null) {
out.println("pageContext.defaultSetOrRemove(\"" + var + "\", " + value + ");");
}
else if (scope.equals("page")) {
out.println("pageContext.pageSetOrRemove(\"" + var + "\", " + value + ");");
}
else if (scope.equals("request")) {
out.println("pageContext.requestSetOrRemove(\"" + var + "\", " + value + ");");
}
else if (scope.equals("session")) {
out.println("pageContext.sessionSetOrRemove(\"" + var + "\", " + value + ");");
}
else if (scope.equals("application")) {
out.println("pageContext.applicationSetOrRemove(\"" + var + "\", " + value + ");");
}
else
throw error(L.l("invalid scope '{0}'", scope));
}
}