/*
* 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 Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jsp.java;
import com.caucho.jsp.*;
import com.caucho.config.*;
import com.caucho.util.*;
import com.caucho.xml.QName;
import com.caucho.vfs.*;
import javax.servlet.jsp.tagext.*;
import javax.faces.component.*;
import javax.faces.event.*;
import javax.el.*;
import java.lang.reflect.*;
import java.util.*;
import java.io.*;
/**
* Represents f:view
*/
public class JsfViewRoot extends JsfNode
{
private JspNode _next;
private ArrayList<Attr> _attrList = new ArrayList<Attr>();
/**
* Adds an attribute.
*/
public void addAttribute(QName qName, String value)
throws JspParseException
{
String name = qName.getName();
if (name.equals("afterPhase"))
name = "afterPhaseListener";
else if (name.equals("beforePhase"))
name = "beforePhaseListener";
String setterName = ("set" + Character.toUpperCase(name.charAt(0))
+ name.substring(1));
Method method = findSetter(UIViewRoot.class, setterName);
if (method != null) {
_attrList.add(new Attr(name, method, value));
}
else {
super.addAttribute(qName, value);
}
}
/**
* Adds a JspAttribute attribute.
*
* @param name the name of the attribute.
* @param value the value of the attribute.
*/
public void addAttribute(QName qName, JspAttribute value)
throws JspParseException
{
String name = qName.getName();
if (name.equals("afterPhase"))
name = "afterPhaseListener";
else if (name.equals("beforePhase"))
name = "beforePhaseListener";
if (value.isStatic()) {
addAttribute(qName, value.getStaticText().trim());
}
else {
String setterName = ("set" + Character.toUpperCase(name.charAt(0))
+ name.substring(1));
Method method = findSetter(UIViewRoot.class, setterName);
if (method != null) {
_attrList.add(new Attr(name, method, value));
}
else {
super.addAttribute(qName, value);
}
}
}
/**
* Generates the XML text representation for the tag validation.
*
* @param os write stream to the generated XML.
*/
public void printXml(WriteStream os)
throws IOException
{
if (_next != null)
_next.printXml(os);
}
/**
* Returns the variable containing the jsf parent
*/
@Override
public String getJsfVar()
{
return _var;
}
/**
* Returns the variable containing the jsf body
*/
@Override
public String getJsfBodyVar()
{
return _bodyVar;
}
/**
* generates prologue data.
*/
@Override
public void generatePrologue(JspJavaWriter out)
throws Exception
{
super.generatePrologue(out);
_var = "_jsp_comp" + _gen.uniqueId();
_bodyVar = "_jsp_body" + _gen.uniqueId();
out.println("com.caucho.jsp.BodyContentImpl " + _bodyVar
+ " = (com.caucho.jsp.BodyContentImpl) pageContext.pushBody();");
out.println("out = " + _bodyVar + ";");
out.println("javax.faces.component.UIViewRoot " + _var + " = null;");
}
/**
* Generates the code for a custom tag.
*
* @param out the output writer for the generated java.
*/
public void generate(JspJavaWriter out)
throws Exception
{
String className = "javax.faces.component.UIViewRoot";
long digest = calculateDigest();
// XXX: eventually use pre-allocated long
out.print(_var + " = ");
out.println("com.caucho.jsp.jsf.JsfTagUtil.findRoot(_jsp_faces_context, request, " + digest + "L);");
if (isJsfParentRequired()) {
out.println("request.setAttribute(\"caucho.jsf.parent\""
+ ", new com.caucho.jsp.jsf.JsfComponentTag("
+ _var + ", true, " + _bodyVar + "));");
}
for (int i = 0; i < _attrList.size(); i++) {
Attr attr = (Attr) _attrList.get(i);
Method method = attr.getMethod();
Class type = null;
if (method != null)
type = method.getParameterTypes()[0];
JspAttribute jspAttr = attr.getAttr();
String value = attr.getValue();
if (jspAttr != null) {
generateSetParameter(out, _var, jspAttr, method,
true, null, false, false, null);
}
else if ((value.indexOf("#{") >= 0
&& ! ValueExpression.class.isAssignableFrom(type)
&& ! MethodExpression.class.isAssignableFrom(type))) {
out.print(_var + ".setValueExpression(\"" + attr.getName() + "\", ");
String exprVar = "_caucho_value_expr_" + _gen.addValueExpr(value, type.getName());
out.println(exprVar + ");");
}
else if (attr.getName().equals("beforePhaseListener")
|| attr.getName().equals("afterPhaseListener")) {
String exprVar = "_caucho_method_expr_" + _gen.addMethodExpr(value, "void foo(javax.faces.event.PhaseEvent)");
out.println(_var + "." + method.getName() + "(" + exprVar + ");");
} else if (attr.getName().equals("locale")){
out.print(_var + "." + method.getName() + "(");
String[] values = value.split("[-_]");
if (values.length > 2)
out.print("new java.util.Locale(\"" +values[0]
+ "\",\"" + values[1]
+ "\",\"" + values[2]
+ "\")");
else if (values.length > 1)
out.print("new java.util.Locale(\"" + values[0]
+ "\",\"" + values[1]
+ "\")");
else
out.print("new java.util.Locale(\"" + value + "\")");
out.println(");");
}
else {
out.print(_var + "." + method.getName() + "(");
out.print(generateParameterValue(type, value, true, null, false));
out.println(");");
}
}
out.println("response.setLocale(" + _var + ".getLocale());");
generateChildren(out);
out.println("com.caucho.jsp.jsf.JsfTagUtil.afterRoot(_jsp_faces_context, request, response);");
if (_bodyVar != null) {
out.println("out = pageContext.popBody();");
out.println("pageContext.releaseBody(" + _bodyVar + ");");
}
}
private long calculateDigest()
{
long digest = 0;
for (PersistentDependency pDepend : _gen.getDependList()) {
if (pDepend instanceof Depend) {
Depend depend = (Depend) pDepend;
digest = 65521 * digest + depend.getDigest();
}
}
return digest;
}
}