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/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.xml.internal.ws.message;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.AttributesImpl;
/**
* Sniffs the root element name and its attributes from SAX events.
*
* @author Kohsuke Kawaguchi
*/
public final class RootElementSniffer extends DefaultHandler {
private String nsUri = "##error";
private String localName = "##error";
private Attributes atts;
private final boolean parseAttributes;
public RootElementSniffer(boolean parseAttributes) {
this.parseAttributes = parseAttributes;
}
public RootElementSniffer() {
this(true);
}
public void startElement(String uri, String localName, String qName, Attributes a) throws SAXException {
this.nsUri = uri;
this.localName = localName;
if(parseAttributes) {
if(a.getLength()==0) // often there's no attribute
this.atts = EMPTY_ATTRIBUTES;
else
this.atts = new AttributesImpl(a);
}
// no need to parse any further.
throw aSAXException;
}
public String getNsUri() {
return nsUri;
}
public String getLocalName() {
return localName;
}
public Attributes getAttributes() {
return atts;
}
private static final SAXException aSAXException = new SAXException();
private static final Attributes EMPTY_ATTRIBUTES = new AttributesImpl();
}
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