/*
* 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.jstl.el;
import com.caucho.el.Expr;
import com.caucho.jsp.BodyContentImpl;
import com.caucho.jsp.PageContextImpl;
import com.caucho.util.L10N;
import com.caucho.vfs.*;
import com.caucho.xml.Xml;
import com.caucho.xml.XmlParser;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import java.io.Reader;
public class XmlParseTag extends BodyTagSupport {
private static L10N L = new L10N(XmlParseTag.class);
private Expr _xml;
private Expr _systemId;
private Expr _filter;
private String _var;
private String _scope;
private String _varDom;
private String _scopeDom;
/**
* Sets the xml
*/
public void setXml(Expr xml)
{
setDoc(xml);
}
/**
* Sets the doc
*/
public void setDoc(Expr xml)
{
_xml = xml;
}
/**
* Sets the system id
*/
public void setSystemId(Expr systemId)
{
_systemId = systemId;
}
/**
* Sets the filter
*/
public void setFilter(Expr filter)
{
_filter = filter;
}
/**
* Sets the variable
*/
public void setVar(String var)
{
_var = var;
}
/**
* Sets the scope
*/
public void setScope(String scope)
{
_scope = scope;
}
/**
* Sets the variable
*/
public void setVarDom(String var)
{
_varDom = var;
}
/**
* Sets the scope
*/
public void setScopeDom(String scope)
{
_scopeDom = scope;
}
public int doEndTag() throws JspException
{
try {
PageContextImpl pageContext = (PageContextImpl) this.pageContext;
BodyContentImpl body = (BodyContentImpl) getBodyContent();
Reader reader;
if (_xml != null) {
Object obj = _xml.evalObject(pageContext.getELContext());
if (obj instanceof Reader)
reader = (Reader) obj;
else if (obj instanceof String)
reader = Vfs.openString((String) obj).getReader();
else
throw new JspException(L.l("'doc' attribute must be a Reader or String at `{0}'",
obj));
}
else if (body != null) {
TempCharReader tempReader = (TempCharReader) body.getReader();
int ch;
while (Character.isWhitespace((ch = tempReader.read()))) {
}
if (ch >= 0)
tempReader.unread();
reader = tempReader;
}
else
throw new JspException(L.l("x:parse requires a body"));
InputSource is = new InputSource(reader);
XmlParser parser = new Xml();
Document doc = parser.parseDocument(is);
reader.close();
if (_var != null)
CoreSetTag.setValue(pageContext, _var, _scope, doc);
else if (_varDom != null)
CoreSetTag.setValue(pageContext, _varDom, _scopeDom, doc);
else
throw new JspException(L.l("x:parse needs either var or varDom"));
} catch (JspException e) {
throw e;
} catch (Exception e) {
throw new JspException(e);
}
return EVAL_PAGE;
}
}