aoqi@0: /*
aoqi@0:  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.stream.buffer.stax;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.stream.buffer.MutableXMLStreamBuffer;
aoqi@0: import com.sun.xml.internal.org.jvnet.staxex.Base64Data;
aoqi@0: import com.sun.xml.internal.org.jvnet.staxex.NamespaceContextEx;
aoqi@0: import com.sun.xml.internal.org.jvnet.staxex.XMLStreamWriterEx;
aoqi@0: 
aoqi@0: import javax.activation.DataHandler;
aoqi@0: import javax.xml.namespace.NamespaceContext;
aoqi@0: import javax.xml.stream.XMLStreamException;
aoqi@0: import javax.xml.stream.XMLStreamWriter;
aoqi@0: import java.io.OutputStream;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * {@link XMLStreamWriter} that fills {@link MutableXMLStreamBuffer}.
aoqi@0:  * <p>
aoqi@0:  * TODO: need to retain all attributes/namespaces and then store all namespaces
aoqi@0:  * before the attributes. Currently it is necessary for the caller to ensure
aoqi@0:  * all namespaces are written before attributes and the caller must not intermix
aoqi@0:  * calls to the writeNamespace and writeAttribute methods.
aoqi@0:  *
aoqi@0:  */
aoqi@0: public class StreamWriterBufferCreator extends StreamBufferCreator implements XMLStreamWriterEx {
aoqi@0:     private final NamespaceContexHelper namespaceContext = new NamespaceContexHelper();
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Nesting depth of the element.
aoqi@0:      * This field is ultimately used to keep track of the # of trees we created in
aoqi@0:      * the buffer.
aoqi@0:      */
aoqi@0:     private int depth=0;
aoqi@0: 
aoqi@0:     public StreamWriterBufferCreator() {
aoqi@0:         setXMLStreamBuffer(new MutableXMLStreamBuffer());
aoqi@0:     }
aoqi@0: 
aoqi@0:     public StreamWriterBufferCreator(MutableXMLStreamBuffer buffer) {
aoqi@0:         setXMLStreamBuffer(buffer);
aoqi@0:     }
aoqi@0: 
aoqi@0:     // XMLStreamWriter
aoqi@0: 
aoqi@0:     public Object getProperty(String str) throws IllegalArgumentException {
aoqi@0:         return null; //return  null for all the property names instead of
aoqi@0:                     //throwing unsupported operation exception.
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void close() throws XMLStreamException {
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void flush() throws XMLStreamException {
aoqi@0:     }
aoqi@0: 
aoqi@0:     public NamespaceContextEx getNamespaceContext() {
aoqi@0:         return namespaceContext;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setNamespaceContext(NamespaceContext namespaceContext) throws XMLStreamException {
aoqi@0:         /*
aoqi@0:          * It is really unclear from the JavaDoc how to implement this method.
aoqi@0:          */
aoqi@0:         throw new UnsupportedOperationException();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setDefaultNamespace(String namespaceURI) throws XMLStreamException {
aoqi@0:         setPrefix("", namespaceURI);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setPrefix(String prefix, String namespaceURI) throws XMLStreamException {
aoqi@0:         namespaceContext.declareNamespace(prefix, namespaceURI);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getPrefix(String namespaceURI) throws XMLStreamException {
aoqi@0:         return namespaceContext.getPrefix(namespaceURI);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public void writeStartDocument() throws XMLStreamException {
aoqi@0:         writeStartDocument("", "");
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeStartDocument(String version) throws XMLStreamException {
aoqi@0:         writeStartDocument("", "");
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeStartDocument(String encoding, String version) throws XMLStreamException {
aoqi@0:         namespaceContext.resetContexts();
aoqi@0: 
aoqi@0:         storeStructure(T_DOCUMENT);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEndDocument() throws XMLStreamException {
aoqi@0:         storeStructure(T_END);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeStartElement(String localName) throws XMLStreamException {
aoqi@0:         namespaceContext.pushContext();
aoqi@0:         depth++;
aoqi@0: 
aoqi@0:         final String defaultNamespaceURI = namespaceContext.getNamespaceURI("");
aoqi@0: 
aoqi@0:         if (defaultNamespaceURI == null)
aoqi@0:             storeQualifiedName(T_ELEMENT_LN, null, null, localName);
aoqi@0:         else
aoqi@0:             storeQualifiedName(T_ELEMENT_LN, null, defaultNamespaceURI, localName);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeStartElement(String namespaceURI, String localName) throws XMLStreamException {
aoqi@0:         namespaceContext.pushContext();
aoqi@0:         depth++;
aoqi@0: 
aoqi@0:         final String prefix = namespaceContext.getPrefix(namespaceURI);
aoqi@0:         if (prefix == null) {
aoqi@0:             throw new XMLStreamException();
aoqi@0:         }
aoqi@0: 
aoqi@0:         namespaceContext.pushContext();
aoqi@0:         storeQualifiedName(T_ELEMENT_LN, prefix, namespaceURI, localName);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeStartElement(String prefix, String localName, String namespaceURI) throws XMLStreamException {
aoqi@0:         namespaceContext.pushContext();
aoqi@0:         depth++;
aoqi@0: 
aoqi@0:         storeQualifiedName(T_ELEMENT_LN, prefix, namespaceURI, localName);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEmptyElement(String localName) throws XMLStreamException {
aoqi@0:         writeStartElement(localName);
aoqi@0:         writeEndElement();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEmptyElement(String namespaceURI, String localName) throws XMLStreamException {
aoqi@0:         writeStartElement(namespaceURI, localName);
aoqi@0:         writeEndElement();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEmptyElement(String prefix, String localName, String namespaceURI) throws XMLStreamException {
aoqi@0:         writeStartElement(prefix, localName, namespaceURI);
aoqi@0:         writeEndElement();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEndElement() throws XMLStreamException {
aoqi@0:         namespaceContext.popContext();
aoqi@0: 
aoqi@0:         storeStructure(T_END);
aoqi@0:         if(--depth==0)
aoqi@0:             increaseTreeCount();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeDefaultNamespace(String namespaceURI) throws XMLStreamException {
aoqi@0:         storeNamespaceAttribute(null, namespaceURI);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeNamespace(String prefix, String namespaceURI) throws XMLStreamException {
aoqi@0:         if ("xmlns".equals(prefix))
aoqi@0:             prefix = null;
aoqi@0:         storeNamespaceAttribute(prefix, namespaceURI);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     public void writeAttribute(String localName, String value) throws XMLStreamException {
aoqi@0:         storeAttribute(null, null, localName, "CDATA", value);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeAttribute(String namespaceURI, String localName, String value) throws XMLStreamException {
aoqi@0:         final String prefix = namespaceContext.getPrefix(namespaceURI);
aoqi@0:         if (prefix == null) {
aoqi@0:             // TODO
aoqi@0:             throw new XMLStreamException();
aoqi@0:         }
aoqi@0: 
aoqi@0:         writeAttribute(prefix, namespaceURI, localName, value);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeAttribute(String prefix, String namespaceURI, String localName, String value) throws XMLStreamException {
aoqi@0:         storeAttribute(prefix, namespaceURI, localName, "CDATA", value);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeCData(String data) throws XMLStreamException {
aoqi@0:         storeStructure(T_TEXT_AS_STRING);
aoqi@0:         storeContentString(data);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeCharacters(String charData) throws XMLStreamException {
aoqi@0:         storeStructure(T_TEXT_AS_STRING);
aoqi@0:         storeContentString(charData);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeCharacters(char[] buf, int start, int len) throws XMLStreamException {
aoqi@0:         storeContentCharacters(T_TEXT_AS_CHAR_ARRAY, buf, start, len);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeComment(String str) throws XMLStreamException {
aoqi@0:         storeStructure(T_COMMENT_AS_STRING);
aoqi@0:         storeContentString(str);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeDTD(String str) throws XMLStreamException {
aoqi@0:         // not support. just ignore.
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeEntityRef(String str) throws XMLStreamException {
aoqi@0:         storeStructure(T_UNEXPANDED_ENTITY_REFERENCE);
aoqi@0:         storeContentString(str);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeProcessingInstruction(String target) throws XMLStreamException {
aoqi@0:         writeProcessingInstruction(target, "");
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeProcessingInstruction(String target, String data) throws XMLStreamException {
aoqi@0:         storeProcessingInstruction(target, data);
aoqi@0:     }
aoqi@0: 
aoqi@0:     // XMLStreamWriterEx
aoqi@0: 
aoqi@0:     public void writePCDATA(CharSequence charSequence) throws XMLStreamException {
aoqi@0:         if (charSequence instanceof Base64Data) {
aoqi@0:             storeStructure(T_TEXT_AS_OBJECT);
aoqi@0:             storeContentObject(((Base64Data)charSequence).clone());
aoqi@0:         } else {
aoqi@0:             writeCharacters(charSequence.toString());
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeBinary(byte[] bytes, int offset, int length, String endpointURL) throws XMLStreamException {
aoqi@0:         Base64Data d = new Base64Data();
aoqi@0:         byte b[] = new byte[length];
aoqi@0:         System.arraycopy(bytes, offset, b, 0, length);
aoqi@0:         d.set(b, length, null, true);
aoqi@0:         storeStructure(T_TEXT_AS_OBJECT);
aoqi@0:         storeContentObject(d);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeBinary(DataHandler dataHandler) throws XMLStreamException {
aoqi@0:         Base64Data d = new Base64Data();
aoqi@0:         d.set(dataHandler);
aoqi@0:         storeStructure(T_TEXT_AS_OBJECT);
aoqi@0:         storeContentObject(d);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public OutputStream writeBinary(String endpointURL) throws XMLStreamException {
aoqi@0:         // TODO
aoqi@0:         throw new UnsupportedOperationException();
aoqi@0:     }
aoqi@0: }