com.sun.xml.fastinfoset.dom.DOMDocumentSerializer Maven / Gradle / Ivy
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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2004-2018 Oracle and/or its affiliates. All rights reserved.
*
* Oracle 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 com.sun.xml.fastinfoset.dom;
import com.sun.xml.fastinfoset.Encoder;
import com.sun.xml.fastinfoset.EncodingConstants;
import com.sun.xml.fastinfoset.QualifiedName;
import com.sun.xml.fastinfoset.util.NamespaceContextImplementation;
import com.sun.xml.fastinfoset.util.LocalNameQualifiedNamesMap;
import java.io.IOException;
import org.jvnet.fastinfoset.FastInfosetException;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* The Fast Infoset DOM serializer.
*
* Instantiate this serializer to serialize a fast infoset document in accordance
* with the DOM API.
*
*/
public class DOMDocumentSerializer extends Encoder {
/**
* Serialize a {@link Node}.
*
* @param n the node to serialize.
*/
public final void serialize(Node n) throws IOException {
switch (n.getNodeType()) {
case Node.DOCUMENT_NODE:
serialize((Document)n);
break;
case Node.ELEMENT_NODE:
serializeElementAsDocument(n);
break;
case Node.COMMENT_NODE:
serializeComment(n);
break;
case Node.PROCESSING_INSTRUCTION_NODE:
serializeProcessingInstruction(n);
break;
}
}
/**
* Serialize a {@link Document}.
*
* @param d the document to serialize.
*/
public final void serialize(Document d) throws IOException {
reset();
encodeHeader(false);
encodeInitialVocabulary();
final NodeList nl = d.getChildNodes();
for (int i = 0; i < nl.getLength(); i++) {
final Node n = nl.item(i);
switch (n.getNodeType()) {
case Node.ELEMENT_NODE:
serializeElement(n);
break;
case Node.COMMENT_NODE:
serializeComment(n);
break;
case Node.PROCESSING_INSTRUCTION_NODE:
serializeProcessingInstruction(n);
break;
}
}
encodeDocumentTermination();
}
protected final void serializeElementAsDocument(Node e) throws IOException {
reset();
encodeHeader(false);
encodeInitialVocabulary();
serializeElement(e);
encodeDocumentTermination();
}
// protected Node[] _namespaceAttributes = new Node[4];
// map which will hold all current scope prefixes and associated attributes
// Collection of populated namespace available for current scope
protected NamespaceContextImplementation _namespaceScopeContext = new NamespaceContextImplementation();
protected Node[] _attributes = new Node[32];
protected final void serializeElement(Node e) throws IOException {
encodeTermination();
int attributesSize = 0;
_namespaceScopeContext.pushContext();
if (e.hasAttributes()) {
/*
* Split the attribute nodes into namespace attributes
* or normal attributes.
*/
final NamedNodeMap nnm = e.getAttributes();
for (int i = 0; i < nnm.getLength(); i++) {
final Node a = nnm.item(i);
final String namespaceURI = a.getNamespaceURI();
if (namespaceURI != null && namespaceURI.equals("http://www.w3.org/2000/xmlns/")) {
String attrPrefix = a.getLocalName();
String attrNamespace = a.getNodeValue();
if (attrPrefix == "xmlns" || attrPrefix.equals("xmlns")) {
attrPrefix = "";
}
_namespaceScopeContext.declarePrefix(attrPrefix, attrNamespace);
} else {
if (attributesSize == _attributes.length) {
final Node[] attributes = new Node[attributesSize * 3 / 2 + 1];
System.arraycopy(_attributes, 0, attributes, 0, attributesSize);
_attributes = attributes;
}
_attributes[attributesSize++] = a;
String attrNamespaceURI = a.getNamespaceURI();
String attrPrefix = a.getPrefix();
if (attrPrefix != null && !_namespaceScopeContext.getNamespaceURI(attrPrefix).equals(attrNamespaceURI)) {
_namespaceScopeContext.declarePrefix(attrPrefix, attrNamespaceURI);
}
}
}
}
String elementNamespaceURI = e.getNamespaceURI();
String elementPrefix = e.getPrefix();
if (elementPrefix == null) elementPrefix = "";
if (elementNamespaceURI != null &&
!_namespaceScopeContext.getNamespaceURI(elementPrefix).equals(elementNamespaceURI)) {
_namespaceScopeContext.declarePrefix(elementPrefix, elementNamespaceURI);
}
if (!_namespaceScopeContext.isCurrentContextEmpty()) {
if (attributesSize > 0) {
write(EncodingConstants.ELEMENT | EncodingConstants.ELEMENT_NAMESPACES_FLAG |
EncodingConstants.ELEMENT_ATTRIBUTE_FLAG);
} else {
write(EncodingConstants.ELEMENT | EncodingConstants.ELEMENT_NAMESPACES_FLAG);
}
for (int i = _namespaceScopeContext.getCurrentContextStartIndex();
i < _namespaceScopeContext.getCurrentContextEndIndex(); i++) {
String prefix = _namespaceScopeContext.getPrefix(i);
String uri = _namespaceScopeContext.getNamespaceURI(i);
encodeNamespaceAttribute(prefix, uri);
}
write(EncodingConstants.TERMINATOR);
_b = 0;
} else {
_b = (attributesSize > 0) ? EncodingConstants.ELEMENT | EncodingConstants.ELEMENT_ATTRIBUTE_FLAG :
EncodingConstants.ELEMENT;
}
String namespaceURI = elementNamespaceURI;
// namespaceURI = (namespaceURI == null) ? _namespaceScopeContext.getNamespaceURI("") : namespaceURI;
namespaceURI = (namespaceURI == null) ? "" : namespaceURI;
encodeElement(namespaceURI, e.getNodeName(), e.getLocalName());
if (attributesSize > 0) {
// Serialize the attributes
for (int i = 0; i < attributesSize; i++) {
final Node a = _attributes[i];
_attributes[i] = null;
namespaceURI = a.getNamespaceURI();
namespaceURI = (namespaceURI == null) ? "" : namespaceURI;
encodeAttribute(namespaceURI, a.getNodeName(), a.getLocalName());
final String value = a.getNodeValue();
final boolean addToTable = isAttributeValueLengthMatchesLimit(value.length());
encodeNonIdentifyingStringOnFirstBit(value, _v.attributeValue, addToTable, false);
}
_b = EncodingConstants.TERMINATOR;
_terminate = true;
}
if (e.hasChildNodes()) {
// Serialize the children
final NodeList nl = e.getChildNodes();
for (int i = 0; i < nl.getLength(); i++) {
final Node n = nl.item(i);
switch (n.getNodeType()) {
case Node.ELEMENT_NODE:
serializeElement(n);
break;
case Node.TEXT_NODE:
serializeText(n);
break;
case Node.CDATA_SECTION_NODE:
serializeCDATA(n);
break;
case Node.COMMENT_NODE:
serializeComment(n);
break;
case Node.PROCESSING_INSTRUCTION_NODE:
serializeProcessingInstruction(n);
break;
}
}
}
encodeElementTermination();
_namespaceScopeContext.popContext();
}
protected final void serializeText(Node t) throws IOException {
final String text = t.getNodeValue();
final int length = (text != null) ? text.length() : 0;
if (length == 0) {
return;
} else if (length < _charBuffer.length) {
text.getChars(0, length, _charBuffer, 0);
if (getIgnoreWhiteSpaceTextContent() &&
isWhiteSpace(_charBuffer, 0, length)) return;
encodeTermination();
encodeCharacters(_charBuffer, 0, length);
} else {
final char ch[] = text.toCharArray();
if (getIgnoreWhiteSpaceTextContent() &&
isWhiteSpace(ch, 0, length)) return;
encodeTermination();
encodeCharactersNoClone(ch, 0, length);
}
}
protected final void serializeCDATA(Node t) throws IOException {
final String text = t.getNodeValue();
final int length = (text != null) ? text.length() : 0;
if (length == 0) {
return;
} else {
final char ch[] = text.toCharArray();
if (getIgnoreWhiteSpaceTextContent() &&
isWhiteSpace(ch, 0, length)) return;
encodeTermination();
try {
encodeCIIBuiltInAlgorithmDataAsCDATA(ch, 0, length);
} catch (FastInfosetException e) {
throw new IOException("");
}
}
}
protected final void serializeComment(Node c) throws IOException {
if (getIgnoreComments()) return;
encodeTermination();
final String comment = c.getNodeValue();
final int length = (comment != null) ? comment.length() : 0;
if (length == 0) {
encodeComment(_charBuffer, 0, 0);
} else if (length < _charBuffer.length) {
comment.getChars(0, length, _charBuffer, 0);
encodeComment(_charBuffer, 0, length);
} else {
final char ch[] = comment.toCharArray();
encodeCommentNoClone(ch, 0, length);
}
}
protected final void serializeProcessingInstruction(Node pi) throws IOException {
if (getIgnoreProcesingInstructions()) return;
encodeTermination();
final String target = pi.getNodeName();
final String data = pi.getNodeValue();
encodeProcessingInstruction(target, data);
}
protected final void encodeElement(String namespaceURI, String qName, String localName) throws IOException {
LocalNameQualifiedNamesMap.Entry entry = _v.elementName.obtainEntry(qName);
if (entry._valueIndex > 0) {
final QualifiedName[] names = entry._value;
for (int i = 0; i < entry._valueIndex; i++) {
if ((namespaceURI == names[i].namespaceName || namespaceURI.equals(names[i].namespaceName))) {
encodeNonZeroIntegerOnThirdBit(names[i].index);
return;
}
}
}
// Was DOM node created using an NS-aware call?
if (localName != null) {
encodeLiteralElementQualifiedNameOnThirdBit(namespaceURI, getPrefixFromQualifiedName(qName),
localName, entry);
} else {
encodeLiteralElementQualifiedNameOnThirdBit(namespaceURI, "", qName, entry);
}
}
protected final void encodeAttribute(String namespaceURI, String qName, String localName) throws IOException {
LocalNameQualifiedNamesMap.Entry entry = _v.attributeName.obtainEntry(qName);
if (entry._valueIndex > 0) {
final QualifiedName[] names = entry._value;
for (int i = 0; i < entry._valueIndex; i++) {
if ((namespaceURI == names[i].namespaceName || namespaceURI.equals(names[i].namespaceName))) {
encodeNonZeroIntegerOnSecondBitFirstBitZero(names[i].index);
return;
}
}
}
// Was DOM node created using an NS-aware call?
if (localName != null) {
encodeLiteralAttributeQualifiedNameOnSecondBit(namespaceURI, getPrefixFromQualifiedName(qName),
localName, entry);
} else {
encodeLiteralAttributeQualifiedNameOnSecondBit(namespaceURI, "", qName, entry);
}
}
}