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/**
* (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.internals;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
/**
* Holder of each node's namespace.
*
* @author Yoko Harada <yokolet@gmail.com>
*
*/
public final class NokogiriNamespaceContext implements NamespaceContext {
/*
* these constants have matching declarations in
* ext/nokogiri/xml_xpath_context.c
*/
public static final String NOKOGIRI_PREFIX = "nokogiri";
public static final String NOKOGIRI_URI = "http://www.nokogiri.org/default_ns/ruby/extensions_functions";
public static final String NOKOGIRI_BUILTIN_PREFIX = "nokogiri-builtin";
public static final String NOKOGIRI_BUILTIN_URI = "https://www.nokogiri.org/default_ns/ruby/builtins";
private final Map<String,String> register;
public static NokogiriNamespaceContext create() {
return new NokogiriNamespaceContext();
}
private NokogiriNamespaceContext() {
register = new HashMap<String, String>(6, 1);
register.put(NOKOGIRI_PREFIX, NOKOGIRI_URI);
register.put(NOKOGIRI_BUILTIN_PREFIX, NOKOGIRI_BUILTIN_URI);
register.put("xml", "http://www.w3.org/XML/1998/namespace");
register.put("xhtml", "http://www.w3.org/1999/xhtml");
}
public String getNamespaceURI(String prefix) {
if (prefix == null) {
throw new IllegalArgumentException();
}
String uri = this.register.get(prefix);
if (uri != null) {
return uri;
}
if (prefix.equals(XMLConstants.XMLNS_ATTRIBUTE)) {
uri = this.register.get(XMLConstants.XMLNS_ATTRIBUTE);
return (uri == null) ? XMLConstants.XMLNS_ATTRIBUTE_NS_URI : uri;
}
return XMLConstants.NULL_NS_URI;
}
public String getPrefix(String uri) {
if (uri == null) {
throw new IllegalArgumentException("uri is null");
}
Set<Entry<String, String>> entries = register.entrySet();
for (Entry<String, String> entry : entries) {
if (uri.equals(entry.getValue())) {
return entry.getKey();
}
}
return null;
}
public Iterator<String> getPrefixes(String uri) {
Set<Entry<String, String>> entries = register.entrySet();
ArrayList<String> list = new ArrayList<String>(entries.size());
for (Entry<String, String> entry : entries) {
if (uri.equals(entry.getValue())) {
list.add(entry.getKey());
}
}
return list.iterator();
}
public Set<String> getAllPrefixes() {
return register.keySet();
}
public void registerNamespace(String prefix, String uri) {
if ("xmlns".equals(prefix)) prefix = "";
register.put(prefix, uri);
}
}
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