/*
* 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 version 2
* as published by the Free Software Foundation.
*
* 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 Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Alex Rojkov
*/
package com.caucho.jsp.java;
import com.caucho.vfs.WriteStream;
import com.caucho.xml.QName;
import com.caucho.jsp.JspParseException;
import javax.servlet.jsp.JspException;
import javax.faces.event.PhaseListener;
import java.io.IOException;
public class JsfPhaseListener
extends JsfNode
{
private static final QName TYPE = new QName("type");
private static final QName BINDING = new QName("binding");
private String _type;
private String _binding;
public String getType()
{
return _type;
}
public String getBinding()
{
return _binding;
}
/**
* Adds an attribute.
*/
public void addAttribute(QName name, String value)
throws JspParseException
{
if (TYPE.equals(name))
_type = value;
else if (BINDING.equals(name)) {
_binding = value;
}
else
super.addAttribute(name, value);
}
public void printXml(WriteStream os)
throws IOException
{
//
}
public void generate(JspJavaWriter out)
throws Exception
{
JspNode parent = getParent();
if (!(parent instanceof JsfViewRoot))
throw new JspException(L.l(
"f:phaseListener must be nested inside a f:view tag."));
JsfViewRoot viewRoot = (JsfViewRoot) parent;
out.println("if (" + viewRoot.getJsfVar() + ".getChildCount() == 0) {");
if (_binding != null) {
String exprVar = "_caucho_value_expr_" +
_gen.addValueExpr(_binding,
PhaseListener.class.getName());
String varName = "_jsp_phase_listener" + _gen.uniqueId();
out.println("javax.faces.event.PhaseListener " +
varName + " = (javax.faces.event.PhaseListener)" + exprVar +
".getValue(_jsp_faces_context.getELContext());");
if (_type != null) {
out.println("if (" + varName + " == null) {");
out.println(varName +
" = (javax.faces.event.PhaseListener)" +
_type +
".class.newInstance();");
out.println(exprVar +
".setValue(_jsp_faces_context.getELContext(), " +
varName +
");");
out.println("}");
}
out.println("" + viewRoot.getJsfVar() + ".addPhaseListener(" +
varName + ");");
}
else if (_type != null) {
out.println("\t" + viewRoot.getJsfVar() +
".addPhaseListener((javax.faces.event.PhaseListener)" +
_type +
".class.newInstance());");
}
else {
}
out.println("}");
}
}