Package nokogiri

Source Code of nokogiri.XmlEntityReference

/**
* (The MIT License)
*
* Copyright (c) 2008 - 2012:
*
* * {Aaron Patterson}[http://tenderlovemaking.com]
* * {Mike Dalessio}[http://mike.daless.io]
* * {Charles Nutter}[http://blog.headius.com]
* * {Sergio Arbeo}[http://www.serabe.com]
* * {Patrick Mahoney}[http://polycrystal.org]
* * {Yoko Harada}[http://yokolet.blogspot.com]
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

package nokogiri;

import static nokogiri.internals.NokogiriHelpers.getCachedNodeOrCreate;
import static nokogiri.internals.NokogiriHelpers.rubyStringToString;
import nokogiri.internals.SaveContextVisitor;

import org.apache.xerces.dom.CoreDocumentImpl;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.anno.JRubyClass;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

/**
* Class for Nokogiri::XML::EntityReference
*
* @author sergio
* @author Patrick Mahoney <pat@polycrystal.org>
* @author Yoko Harada <yokolet@gmail.com>
*/
@JRubyClass(name="Nokogiri::XML::EntityReference", parent="Nokogiri::XML::Node")
public class XmlEntityReference extends XmlNode {

    public XmlEntityReference(Ruby ruby, RubyClass klazz) {
        super(ruby, klazz);
    }

    public XmlEntityReference(Ruby ruby, RubyClass klass, Node node) {
        super(ruby, klass, node);
    }

    protected void init(ThreadContext context, IRubyObject[] args) {
        if (args.length < 2) {
            throw getRuntime().newArgumentError(args.length, 2);
        }

        IRubyObject doc = args[0];
        IRubyObject name = args[1];

        Document document = ((XmlNode) doc).getOwnerDocument();
        // FIXME: disable error checking as a workaround for #719. this depends on the internals of Xerces.
        CoreDocumentImpl internalDocument = (CoreDocumentImpl) document;
        boolean oldErrorChecking = internalDocument.getErrorChecking();
        internalDocument.setErrorChecking(false);
        Node node = document.createEntityReference(rubyStringToString(name));
        internalDocument.setErrorChecking(oldErrorChecking);
        setNode(context, node);
    }
   
    @Override
    public void accept(ThreadContext context, SaveContextVisitor visitor) {
        visitor.enter(node);
        Node child = node.getFirstChild();
        while (child != null) {
            IRubyObject nokoNode = getCachedNodeOrCreate(context.getRuntime(), child);
            if (nokoNode instanceof XmlNode) {
                XmlNode cur = (XmlNode) nokoNode;
                cur.accept(context, visitor);
            } else if (nokoNode instanceof XmlNamespace) {
                XmlNamespace cur = (XmlNamespace) nokoNode;
                cur.accept(context, visitor);
            }
            child = child.getNextSibling();
        }
        visitor.leave(node);
    }
}
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