/*
* 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 Charles Reich
*/
package com.caucho.quercus.lib.simplexml;
import com.caucho.quercus.annotation.Name;
import com.caucho.quercus.annotation.Optional;
import com.caucho.quercus.annotation.ReturnNullAsFalse;
import com.caucho.quercus.annotation.EntrySet;
import com.caucho.quercus.env.*;
import com.caucho.quercus.program.JavaClassDef;
import com.caucho.util.L10N;
import com.caucho.vfs.Path;
import com.caucho.vfs.ReadStream;
import com.caucho.vfs.WriteStream;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.*;
import java.util.logging.*;
/**
* SimpleXMLElement object oriented API facade.
* Also acts as the DOM document.
*/
public class SimpleXMLAttribute extends SimpleXMLElement
{
protected SimpleXMLAttribute(Env env,
QuercusClass cls,
SimpleXMLElement parent,
String name)
{
super(env, cls, parent, name);
}
protected SimpleXMLAttribute(Env env,
QuercusClass cls,
SimpleXMLElement parent,
String name,
String namespace,
StringValue text)
{
super(env, cls, parent, name, namespace);
_text = text;
}
@Override
protected void addNamespace(String prefix, String namespace)
{
if (_parent != null)
_parent.addNamespace(prefix, namespace);
}
/**
* Adds a namespace attribute to this node.
*/
@Override
protected void addNamespaceAttribute(Env env, String name,
String namespace)
{
if (_parent != null)
_parent.addNamespaceAttribute(env, name, namespace);
}
/**
* Required for 'foreach'. When only values are specified in
* the loop <code>foreach($a as $b)</code>, this method
* should return an iterator that contains Java objects
* that will be wrapped in a Value.
*
* When a 'foreach' loop with name/value pairs
* i.e. <code>foreach($a as $b=>$c)</code>
* invokes this method, it expects an iterator that
* contains objects that implement Map.Entry.
*/
public Iterator iterator()
{
if (_attributes != null)
return _attributes.iterator();
else
return null;
}
/**
* Converts node tree to a valid xml string.
*
* @return xml string
*/
@Override
public StringValue asXML(Env env)
{
StringValue sb = env.createStringBuilder();
toXMLImpl(sb);
return sb;
}
@Override
protected void toXMLImpl(StringValue sb)
{
sb.append(" ");
if (_prefix != null && ! "".equals(_prefix)) {
sb.append(_prefix);
sb.append(":");
}
sb.append(_name);
sb.append("=\"");
if (_text != null)
sb.append(_text);
sb.append("\"");
}
/**
* Implementation for getting the indices of this class.
* i.e. <code>$a->foo[0]</code>
*/
public Value __get(Env env, Value indexV)
{
if (indexV.isString()) {
String name = indexV.toString();
SimpleXMLElement attr = getAttribute(name);
if (attr != null)
return wrapJava(env, _cls, attr);
else
return NullValue.NULL;
}
else if (indexV.isLongConvertible()) {
int i = indexV.toInt();
if (i < _attributes.size())
return wrapJava(env, _cls, _attributes.get(i));
return NullValue.NULL;
}
else
return NullValue.NULL;
}
@Override
protected void jsonEncodeImpl(Env env, StringValue sb, boolean isTop)
{
sb.append('"');
if (_prefix != null && ! "".equals(_prefix)) {
sb.append(_prefix);
sb.append(":");
}
sb.append(_name);
sb.append('"');
sb.append(':');
sb.append('"');
if (_text != null)
sb.append(_text);
sb.append('"');
}
}