/*
* 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 java.lang.reflect.*;
import com.caucho.jsp.JspParseException;
import com.caucho.xml.QName;
import com.caucho.util.*;
import com.caucho.config.*;
abstract public class JsfNode extends JspContainerNode {
protected String _var;
protected String _bodyVar;
public JsfNode()
{
Thread.dumpStack();
}
/**
* 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;
}
/**
* Adds an attribute.
*/
@Override
public void addAttribute(QName name, String value)
throws JspParseException
{
throw error(L.l("attribute '{0}' is not allowed in <{1}>.",
name.getName(), getTagName()));
}
/**
* Adds a JspAttribute attribute.
*
* @param name the name of the attribute.
* @param value the value of the attribute.
*/
@Override
public void addAttribute(QName name, JspAttribute value)
throws JspParseException
{
throw error(L.l("attribute '{0}' is not allowed in <{1}>.",
name.getName(), getTagName()));
}
/**
* generates prologue data.
*/
@Override
public void generatePrologue(JspJavaWriter out)
throws Exception
{
super.generatePrologue(out);
if (! _gen.isJsfPrologueInit()) {
_gen.setJsfPrologueInit(true);
out.println("final javax.faces.context.FacesContext _jsp_faces_context");
out.println(" = javax.faces.context.FacesContext.getCurrentInstance();");
}
}
/**
* Generates the code for the children.
*
* @param out the output writer for the generated java.
*/
@Override
public void generateChildren(JspJavaWriter out)
throws Exception
{
if (_children == null)
return;
String prevId = null;
boolean isFirst = (this instanceof JsfTagNode);
for (int i = 0; i < _children.size(); i++) {
JspNode child = _children.get(i);
if (isFirst
&& child instanceof StaticText
&& (i + 1 == _children.size()
|| _children.get(i + 1) instanceof JsfNode)) {
StaticText text = (StaticText) child;
if (isWhitespaceOrComment(text.getText())) {
}
else if (i + 1 == _children.size()) {
out.print("com.caucho.jsp.jsf.JsfTagUtil.addVerbatim("
+ _var
+ ", \"");
out.printJavaString(text.getText());
out.println("\");");
}
else {
out.print("com.caucho.jsp.jsf.JsfTagUtil.addVerbatim("
+ _var
+ ", " + prevId
+ ", \"");
out.printJavaString(text.getText());
out.println("\");");
}
continue;
}
isFirst = false;
child.generateStartLocation(out);
try {
child.generate(out);
} catch (Exception e) {
if (e instanceof LineCompileException)
throw e;
else
throw child.error(e);
}
child.generateEndLocation(out);
if (child instanceof JsfTagNode) {
JsfTagNode jsfNode = (JsfTagNode) child;
if (jsfNode.getJsfId() != null)
prevId = "\"" + jsfNode.getJsfId() + "\"";
isFirst = true;
}
}
if (_bodyVar != null && ! isFirst)
out.println("com.caucho.jsp.jsf.JsfTagUtil.addVerbatim("
+ _var + ", " + _bodyVar + ");");
}
private boolean isWhitespaceOrComment(String text)
{
text = text.trim();
return (text.equals("")
|| text.startsWith("<!--") && text.endsWith("-->"));
}
/**
* Generates the code for the children.
*
* @param out the output writer for the generated java.
*/
protected boolean hasBodyContent()
throws Exception
{
if (_children == null)
return false;
String bodyVar = null;
String prevId = null;
boolean isFirst = true;
for (int i = 0; i < _children.size(); i++) {
JspNode child = _children.get(i);
if (isFirst
&& child instanceof StaticText
&& (i + 1 == _children.size()
|| _children.get(i + 1) instanceof JsfTagNode)) {
continue;
}
if (! (child instanceof JsfTagNode)) {
if (isFirst) {
return true;
}
// push body
}
}
return false;
}
protected Method findSetter(Class cl, String name)
{
Method []methods = cl.getMethods();
for (int i = 0; i < methods.length; i++) {
Method method = methods[i];
if (! method.getName().equals(name))
continue;
if (! Modifier.isPublic(method.getModifiers())
|| Modifier.isStatic(method.getModifiers()))
continue;
if (method.getParameterTypes().length != 1)
continue;
return method;
}
return null;
}
static class Attr {
private String _name;
private Method _method;
private String _value;
private JspAttribute _attr;
Attr(String name, Method method, String value)
{
_name = name;
_method = method;
_value = value;
}
Attr(String name, Method method, JspAttribute attr)
{
_name = name;
_method = method;
_attr = attr;
}
String getName()
{
return _name;
}
Method getMethod()
{
return _method;
}
String getValue()
{
return _value;
}
JspAttribute getAttr()
{
return _attr;
}
}
}