/*
* XProcNamespaceContext.java
*
* Copyright 2008 Mark Logic Corporation.
* All rights reserved.
*
* This program 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.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.xmlcalabash.util;
import net.sf.saxon.s9api.QName;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;
import javax.xml.XMLConstants;
/**
*
* @author ndw
*/
public class XProcNamespaceContext {
Hashtable<String,String> nshash = new Hashtable<String,String> ();
/** Creates a new instance of XProcNamespaceContext */
public XProcNamespaceContext(Hashtable<String,String> bindings) {
for (String prefix : bindings.keySet()) {
nshash.put(prefix,bindings.get(prefix));
}
}
public String getNamespaceURI(String prefix) {
if (nshash.containsKey(prefix)) {
return nshash.get(prefix);
} else if ("xml".equals(prefix)) {
return XMLConstants.XML_NS_URI;
} else if ("xmlns".equals(prefix)) {
return XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
} else {
return XMLConstants.NULL_NS_URI;
}
}
public String getPrefix(String namespace) {
for (String key : nshash.keySet()) {
if (namespace.equals(nshash.get(key))) {
return key;
}
}
if (XMLConstants.XML_NS_URI.equals(namespace)) {
return "xml";
} else if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespace)) {
return "xmlns";
} else {
return null;
}
}
public Set<String> getAllPrefixes() {
return nshash.keySet();
}
public Hashtable<String,String> bindings() {
return nshash;
}
public Iterator<String> getPrefixes(String namespace) {
Vector<String> pfxs = new Vector<String> ();
for (String key : nshash.keySet()) {
if (namespace.equals(nshash.get(key))) {
pfxs.add(key);
}
}
return pfxs.iterator();
}
public Iterator<String> getPrefixes() {
return null;
}
public void addBinding(String prefix, String namespace) {
nshash.put(prefix, namespace);
}
public void delBinding(String prefix) {
nshash.remove(prefix);
}
public QName parseQName(String name) {
QName newName = null;
if (name.contains(":")) {
int pos = name.indexOf(":");
String prefix = name.substring(0, pos);
String localName = name.substring(pos+1);
String namespace = nshash.get(prefix);
if ("xml".equals(prefix)) {
namespace = XMLConstants.XML_NS_URI;
}
if (namespace == null) {
throw new IllegalArgumentException("No binding for prefix in name: " + name);
}
newName = new QName(namespace, localName, prefix);
} else {
newName = new QName(getNamespaceURI(XMLConstants.DEFAULT_NS_PREFIX), name, "");
}
return newName;
}
public void dump() {
System.err.println("Namespace context: " + this.hashCode());
for (String prefix : nshash.keySet()) {
System.err.println("\t" + prefix + "=" + nshash.get(prefix));
}
}
}