| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.axiom.util.stax.dialect; |
| |
| import javax.xml.namespace.NamespaceContext; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamWriter; |
| |
| import org.apache.axiom.util.stax.AbstractXMLStreamWriter; |
| |
| /** |
| * {@link XMLStreamWriter} wrapper that handles namespace bindings on behalf of the underlying |
| * writer. This wrapper can be used to correct two issues found in some stream writer |
| * implementations: |
| * <ol> |
| * <li>The writer doesn't correctly scope the namespace bindings. According to the StAX |
| * specifications, the scope of a namespace binding defined using |
| * {@link XMLStreamWriter#setPrefix(String, String)} or |
| * {@link XMLStreamWriter#setDefaultNamespace(String)} is limited to |
| * "the current <tt>START_ELEMENT</tt> / <tt>END_ELEMENT</tt> pair". Some implementations |
| * such as early versions of XL XP-J don't satisfy this requirement. |
| * <li>The writer doesn't handle masked prefixes correctly. To ensure consistent behavior |
| * in the presence of masked prefixes, the {@link XMLStreamWriter#getPrefix(String)} method |
| * (and the corresponding methods in the namespace context returned by |
| * {@link XMLStreamWriter#getNamespaceContext()}) must not return a prefix that |
| * is bound to a different namespace URI in a nested scope. Some implementations such as |
| * the StAX reference implementation fail to meet this requirement. |
| * </ol> |
| * <p> |
| * Invocations of the following methods will be completely processed by the wrapper, and will never |
| * reach the underlying writer: |
| * <ul> |
| * <li>{@link XMLStreamWriter#getNamespaceContext()} |
| * <li>{@link XMLStreamWriter#setNamespaceContext(NamespaceContext)} |
| * <li>{@link XMLStreamWriter#getPrefix(String)} |
| * <li>{@link XMLStreamWriter#setDefaultNamespace(String)} |
| * <li>{@link XMLStreamWriter#setPrefix(String, String)} |
| * </ul> |
| * <p> |
| * The following methods rely on information from the namespace context to choose a the namespace |
| * prefix; the wrapper redirects invocations of these methods to the corresponding variants taking |
| * an explicit prefix parameter: |
| * <ul> |
| * <li>{@link XMLStreamWriter#writeStartElement(String, String)} |
| * <li>{@link XMLStreamWriter#writeAttribute(String, String, String)} |
| * <li>{@link XMLStreamWriter#writeEmptyElement(String, String)} |
| * </ul> |
| * <p> |
| * This implies that if the wrapper is used, these methods will never be called on the underlying |
| * writer. |
| */ |
| class NamespaceContextCorrectingXMLStreamWriterWrapper extends AbstractXMLStreamWriter { |
| private final XMLStreamWriter parent; |
| |
| public NamespaceContextCorrectingXMLStreamWriterWrapper(XMLStreamWriter parent) { |
| this.parent = parent; |
| } |
| |
| protected void doWriteAttribute(String prefix, String namespaceURI, String localName, |
| String value) throws XMLStreamException { |
| parent.writeAttribute(prefix, namespaceURI, localName, value); |
| } |
| |
| protected void doWriteAttribute(String localName, String value) throws XMLStreamException { |
| parent.writeAttribute(localName, value); |
| } |
| |
| protected void doWriteCData(String data) throws XMLStreamException { |
| parent.writeCData(data); |
| } |
| |
| protected void doWriteCharacters(char[] text, int start, int len) throws XMLStreamException { |
| parent.writeCharacters(text, start, len); |
| } |
| |
| protected void doWriteCharacters(String text) throws XMLStreamException { |
| parent.writeCharacters(text); |
| } |
| |
| protected void doWriteComment(String data) throws XMLStreamException { |
| parent.writeComment(data); |
| } |
| |
| protected void doWriteDefaultNamespace(String namespaceURI) throws XMLStreamException { |
| parent.writeDefaultNamespace(namespaceURI); |
| } |
| |
| protected void doWriteDTD(String dtd) throws XMLStreamException { |
| parent.writeDTD(dtd); |
| } |
| |
| protected void doWriteEmptyElement(String prefix, String localName, String namespaceURI) |
| throws XMLStreamException { |
| parent.writeEmptyElement(prefix, localName, namespaceURI); |
| } |
| |
| protected void doWriteEmptyElement(String localName) throws XMLStreamException { |
| parent.writeEmptyElement(localName); |
| } |
| |
| protected void doWriteEndDocument() throws XMLStreamException { |
| parent.writeEndDocument(); |
| } |
| |
| protected void doWriteEndElement() throws XMLStreamException { |
| parent.writeEndElement(); |
| } |
| |
| protected void doWriteEntityRef(String name) throws XMLStreamException { |
| parent.writeEntityRef(name); |
| } |
| |
| protected void doWriteNamespace(String prefix, String namespaceURI) throws XMLStreamException { |
| parent.writeNamespace(prefix, namespaceURI); |
| } |
| |
| protected void doWriteProcessingInstruction(String target, String data) |
| throws XMLStreamException { |
| parent.writeProcessingInstruction(target, data); |
| } |
| |
| protected void doWriteProcessingInstruction(String target) throws XMLStreamException { |
| parent.writeProcessingInstruction(target); |
| } |
| |
| protected void doWriteStartDocument() throws XMLStreamException { |
| parent.writeStartDocument(); |
| } |
| |
| protected void doWriteStartDocument(String encoding, String version) throws XMLStreamException { |
| parent.writeStartDocument(encoding, version); |
| } |
| |
| protected void doWriteStartDocument(String version) throws XMLStreamException { |
| parent.writeStartDocument(version); |
| } |
| |
| protected void doWriteStartElement(String prefix, String localName, String namespaceURI) |
| throws XMLStreamException { |
| parent.writeStartElement(prefix, localName, namespaceURI); |
| } |
| |
| protected void doWriteStartElement(String localName) throws XMLStreamException { |
| parent.writeStartElement(localName); |
| } |
| |
| public void close() throws XMLStreamException { |
| parent.close(); |
| } |
| |
| public void flush() throws XMLStreamException { |
| parent.flush(); |
| } |
| |
| public Object getProperty(String name) throws IllegalArgumentException { |
| return parent.getProperty(name); |
| } |
| } |