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/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Non-Repairing Namespace Context
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2010, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.base.xml.stream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
/**
* Non-Repairing Namespace Context
*/
class NonRepairingNamespaceContext implements NamespaceContext {
/**
* Constructor
*
* @param next
* @param namespaceURI the element's namespace URI
* @param prefix the element's prefix
* @param localName the elements local name
*/
NonRepairingNamespaceContext(
NamespaceContext next,
String namespaceURI,
String prefix,
String localName
){
this.next = next;
this.namespaceURI = namespaceURI;
this.prefix = prefix;
this.localName = localName;
}
/**
*
*/
private final NamespaceContext next;
/**
*
*/
private final Map mapping = new HashMap();
/**
* The element's namespace URI, may be ""
*/
private final String namespaceURI;
/**
* The element's prefix, may be ""
*/
private final String prefix;
/**
* Local name of the element opening this scope
*/
private final String localName;
/**
* Set a namespace prefix
*
* @param prefix the namespace prefix, may be XMLConstants.DEFAULT_NS_PREFIX
* @param uri
*/
void put(
String prefix,
String uri
){
this.mapping.put(prefix, uri);
}
/**
* In order to leave the current scope
*
* @return the next namespace context
*/
NonRepairingNamespaceContext getNext(){
return (NonRepairingNamespaceContext) this.next;
}
/**
* Retrieve the namespace URI of the currrent element
*
* @return the namespace URI of the currrent element
*/
String getCurrentNamespaceURI(){
return
this.namespaceURI != null && !"".equals(this.namespaceURI) ? this.namespaceURI :
this.getNamespaceURI(this.prefix == null ? XMLConstants.DEFAULT_NS_PREFIX : this.prefix);
}
/**
* Retrieve the local name of the currrent element
* @return the local name of the currrent element
*/
String getCurrentElementName(){
return this.localName;
}
/* (non-Javadoc)
* @see javax.xml.namespace.NamespaceContext#getNamespaceURI(java.lang.String)
*/
@Override
public String getNamespaceURI(
String prefix
) {
if(prefix == null) throw new IllegalArgumentException();
String uri = this.mapping.get(prefix);
return
uri != null ? uri :
XMLConstants.XML_NS_PREFIX.equals(prefix) ? XMLConstants.XML_NS_URI :
XMLConstants.XMLNS_ATTRIBUTE.equals(prefix) ? XMLConstants.XMLNS_ATTRIBUTE_NS_URI :
this.next != null ? this.next.getNamespaceURI(prefix) :
XMLConstants.NULL_NS_URI;
}
/* (non-Javadoc)
* @see javax.xml.namespace.NamespaceContext#getPrefix(java.lang.String)
*/
@Override
public String getPrefix(String namespaceURI) {
if(namespaceURI == null) throw new IllegalArgumentException();
for(Map.Entry e : mapping.entrySet()) {
if(namespaceURI.equals(e.getValue())) {
return e.getKey();
}
}
return
XMLConstants.XML_NS_URI.equals(namespaceURI) ? XMLConstants.XML_NS_PREFIX :
XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespaceURI) ? XMLConstants.XMLNS_ATTRIBUTE :
this.next != null ? this.next.getPrefix(namespaceURI) :
null;
}
/* (non-Javadoc)
* @see javax.xml.namespace.NamespaceContext#getPrefixes(java.lang.String)
*/
@Override
public Iterator getPrefixes(
final String namespaceURI
) {
if(namespaceURI == null) throw new IllegalArgumentException();
return
XMLConstants.XML_NS_URI.equals(namespaceURI) ? Collections.singleton(XMLConstants.XML_NS_PREFIX).iterator() :
XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespaceURI) ? Collections.singleton(XMLConstants.XMLNS_ATTRIBUTE).iterator() :
new Concatenation(getPrimaryPrefixes(namespaceURI), getSecondaryPrefixes(namespaceURI));
}
private Iterator getPrimaryPrefixes(
final String namespaceURI
){
List mappedPrefixes = new ArrayList();
for(Map.Entry e : mapping.entrySet()) {
if(namespaceURI.equals(e.getValue())) {
mappedPrefixes.add(e.getKey());
}
}
return mappedPrefixes.iterator();
}
private Iterator getSecondaryPrefixes(
final String namespaceURI
){
return this.next.getPrefixes(namespaceURI);
}
//------------------------------------------------------------------------
// Class Concatenation
//------------------------------------------------------------------------
private static class Concatenation implements Iterator
