| /* |
| * Copyright (c) 1998, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // bdoughan - June 25/2009 - 2.0 - Initial implementation |
| package org.eclipse.persistence.internal.oxm.record.namespaces; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import javax.xml.stream.XMLStreamReader; |
| |
| import org.eclipse.persistence.internal.oxm.Constants; |
| |
| /** |
| * An UnmarshalNamespaceResolver that delegates all work to a NamespaceContext. |
| * This is useful when using XML input from sources such as StAX. |
| */ |
| public class UnmarshalNamespaceContext implements UnmarshalNamespaceResolver { |
| |
| private XMLStreamReader xmlStreamReader; |
| private Set<String> prefixes; |
| |
| public UnmarshalNamespaceContext() { |
| this.prefixes = new HashSet(4); |
| } |
| |
| public UnmarshalNamespaceContext(XMLStreamReader anXMLStreamReader) { |
| this.xmlStreamReader = anXMLStreamReader; |
| this.prefixes = new HashSet(4); |
| } |
| |
| @Override |
| public String getNamespaceURI(String prefix) { |
| if(null == prefix) { |
| prefix = Constants.EMPTY_STRING; |
| } |
| try { |
| String namespaceURI = xmlStreamReader.getNamespaceURI(prefix); |
| if(null == namespaceURI) { |
| return xmlStreamReader.getAttributeValue(javax.xml.XMLConstants.XMLNS_ATTRIBUTE_NS_URI, prefix); |
| } |
| return namespaceURI; |
| } catch(IllegalStateException e) { |
| return null; |
| } |
| } |
| |
| @Override |
| public String getPrefix(String namespaceURI) { |
| return xmlStreamReader.getNamespaceContext().getPrefix(namespaceURI); |
| } |
| |
| /** |
| * The underlying NamespaceContext is responsible for maintaining the |
| * appropriate prefix/URI associations. |
| */ |
| @Override |
| public void push(String prefix, String namespaceURI) { |
| prefixes.add(prefix); |
| } |
| |
| /** |
| * The underlying NamespaceContext is responsible for maintaining the |
| * appropriate prefix/URI associations. |
| */ |
| @Override |
| public void pop(String prefix) { |
| if(null!= getNamespaceURI(prefix)) { |
| prefixes.remove(prefix); |
| } |
| } |
| |
| @Override |
| public Set<String> getPrefixes() { |
| return prefixes; |
| } |
| |
| public XMLStreamReader getXmlStreamReader() { |
| return xmlStreamReader; |
| } |
| |
| public void setXmlStreamReader(XMLStreamReader xmlStreamReader) { |
| this.xmlStreamReader = xmlStreamReader; |
| } |
| |
| } |