com.sun.xml.fastinfoset.sax.SAXDocumentSerializer Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2004, 2021 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.sax;
import com.sun.xml.fastinfoset.Encoder;
import com.sun.xml.fastinfoset.EncodingConstants;
import com.sun.xml.fastinfoset.QualifiedName;
import org.jvnet.fastinfoset.sax.FastInfosetWriter;
import com.sun.xml.fastinfoset.util.LocalNameQualifiedNamesMap;
import java.io.IOException;
import org.jvnet.fastinfoset.EncodingAlgorithmIndexes;
import org.jvnet.fastinfoset.FastInfosetException;
import org.jvnet.fastinfoset.RestrictedAlphabet;
import org.jvnet.fastinfoset.sax.EncodingAlgorithmAttributes;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import com.sun.xml.fastinfoset.CommonResourceBundle;
/**
* The Fast Infoset SAX serializer.
*
* Instantiate this serializer to serialize a fast infoset document in accordance
* with the SAX API.
*
* This utilizes the SAX API in a reverse manner to that of parsing. It is the
* responsibility of the client to call the appropriate event methods on the
* SAX handlers, and to ensure that such a sequence of methods calls results
* in the production well-formed fast infoset documents. The
* SAXDocumentSerializer performs no well-formed checks.
*
*
* More than one fast infoset document may be encoded to the
* {@link java.io.OutputStream}.
*/
public class SAXDocumentSerializer extends Encoder implements FastInfosetWriter {
protected boolean _elementHasNamespaces = false;
protected boolean _charactersAsCDATA = false;
protected SAXDocumentSerializer(boolean v) {
super(v);
}
public SAXDocumentSerializer() {
}
public void reset() {
super.reset();
_elementHasNamespaces = false;
_charactersAsCDATA = false;
}
// ContentHandler
public final void startDocument() throws SAXException {
try {
reset();
encodeHeader(false);
encodeInitialVocabulary();
} catch (IOException e) {
throw new SAXException("startDocument", e);
}
}
public final void endDocument() throws SAXException {
try {
encodeDocumentTermination();
} catch (IOException e) {
throw new SAXException("endDocument", e);
}
}
public void startPrefixMapping(String prefix, String uri) throws SAXException {
try {
if (_elementHasNamespaces == false) {
encodeTermination();
// Mark the current buffer position to flag attributes if necessary
mark();
_elementHasNamespaces = true;
// Write out Element byte with namespaces
write(EncodingConstants.ELEMENT | EncodingConstants.ELEMENT_NAMESPACES_FLAG);
}
encodeNamespaceAttribute(prefix, uri);
} catch (IOException e) {
throw new SAXException("startElement", e);
}
}
public final void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
// TODO consider using buffer for encoding of attributes, then pre-counting is not necessary
final int attributeCount = (atts != null && atts.getLength() > 0)
? countAttributes(atts) : 0;
try {
if (_elementHasNamespaces) {
_elementHasNamespaces = false;
if (attributeCount > 0) {
// Flag the marked byte with attributes
_octetBuffer[_markIndex] |= EncodingConstants.ELEMENT_ATTRIBUTE_FLAG;
}
resetMark();
write(EncodingConstants.TERMINATOR);
_b = 0;
} else {
encodeTermination();
_b = EncodingConstants.ELEMENT;
if (attributeCount > 0) {
_b |= EncodingConstants.ELEMENT_ATTRIBUTE_FLAG;
}
}
encodeElement(namespaceURI, qName, localName);
if (attributeCount > 0) {
encodeAttributes(atts);
}
} catch (IOException e) {
throw new SAXException("startElement", e);
} catch (FastInfosetException e) {
throw new SAXException("startElement", e);
}
}
public final void endElement(String namespaceURI, String localName, String qName) throws SAXException {
try {
encodeElementTermination();
} catch (IOException e) {
throw new SAXException("endElement", e);
}
}
public final void characters(char[] ch, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
if (getIgnoreWhiteSpaceTextContent() &&
isWhiteSpace(ch, start, length)) return;
try {
encodeTermination();
if (!_charactersAsCDATA) {
encodeCharacters(ch, start, length);
} else {
encodeCIIBuiltInAlgorithmDataAsCDATA(ch, start, length);
}
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
if (getIgnoreWhiteSpaceTextContent()) return;
characters(ch, start, length);
}
public final void processingInstruction(String target, String data) throws SAXException {
try {
if (getIgnoreProcesingInstructions()) return;
if (target.length() == 0) {
throw new SAXException(CommonResourceBundle.getInstance().
getString("message.processingInstructionTargetIsEmpty"));
}
encodeTermination();
encodeProcessingInstruction(target, data);
} catch (IOException e) {
throw new SAXException("processingInstruction", e);
}
}
public final void setDocumentLocator(org.xml.sax.Locator locator) {
}
public final void skippedEntity(String name) throws SAXException {
}
// LexicalHandler
public final void comment(char[] ch, int start, int length) throws SAXException {
try {
if (getIgnoreComments()) return;
encodeTermination();
encodeComment(ch, start, length);
} catch (IOException e) {
throw new SAXException("startElement", e);
}
}
public final void startCDATA() throws SAXException {
_charactersAsCDATA = true;
}
public final void endCDATA() throws SAXException {
_charactersAsCDATA = false;
}
public final void startDTD(String name, String publicId, String systemId) throws SAXException {
if (getIgnoreDTD()) return;
try {
encodeTermination();
encodeDocumentTypeDeclaration(publicId, systemId);
encodeElementTermination();
} catch (IOException e) {
throw new SAXException("startDTD", e);
}
}
public final void endDTD() throws SAXException {
}
public final void startEntity(String name) throws SAXException {
}
public final void endEntity(String name) throws SAXException {
}
// EncodingAlgorithmContentHandler
public final void octets(String URI, int id, byte[] b, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeNonIdentifyingStringOnThirdBit(URI, id, b, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void object(String URI, int id, Object data) throws SAXException {
try {
encodeTermination();
encodeNonIdentifyingStringOnThirdBit(URI, id, data);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
// PrimitiveTypeContentHandler
public final void bytes(byte[] b, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIOctetAlgorithmData(EncodingAlgorithmIndexes.BASE64, b, start, length);
} catch (IOException e) {
throw new SAXException(e);
}
}
public final void shorts(short[] s, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.SHORT, s, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void ints(int[] i, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.INT, i, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void longs(long[] l, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.LONG, l, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void booleans(boolean[] b, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.BOOLEAN, b, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void floats(float[] f, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.FLOAT, f, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public final void doubles(double[] d, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.DOUBLE, d, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public void uuids(long[] msblsb, int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
encodeCIIBuiltInAlgorithmData(EncodingAlgorithmIndexes.UUID, msblsb, start, length);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
// RestrictedAlphabetContentHandler
public void numericCharacters(char ch[], int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
final boolean addToTable = isCharacterContentChunkLengthMatchesLimit(length);
encodeNumericFourBitCharacters(ch, start, length, addToTable);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public void dateTimeCharacters(char ch[], int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
final boolean addToTable = isCharacterContentChunkLengthMatchesLimit(length);
encodeDateTimeFourBitCharacters(ch, start, length, addToTable);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
public void alphabetCharacters(String alphabet, char ch[], int start, int length) throws SAXException {
if (length <= 0) {
return;
}
try {
encodeTermination();
final boolean addToTable = isCharacterContentChunkLengthMatchesLimit(length);
encodeAlphabetCharacters(alphabet, ch, start, length, addToTable);
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
// ExtendedContentHandler
public void characters(char[] ch, int start, int length, boolean index) throws SAXException {
if (length <= 0) {
return;
}
if (getIgnoreWhiteSpaceTextContent() &&
isWhiteSpace(ch, start, length)) return;
try {
encodeTermination();
if (!_charactersAsCDATA) {
encodeNonIdentifyingStringOnThirdBit(ch, start, length, _v.characterContentChunk, index, true);
} else {
encodeCIIBuiltInAlgorithmDataAsCDATA(ch, start, length);
}
} catch (IOException e) {
throw new SAXException(e);
} catch (FastInfosetException e) {
throw new SAXException(e);
}
}
protected final int countAttributes(Attributes atts) {
// Count attributes ignoring any in the XMLNS namespace
// Note, such attributes may be produced when transforming from a DOM node
int count = 0;
for (int i = 0; i < atts.getLength(); i++) {
final String uri = atts.getURI(i);
if (uri == "http://www.w3.org/2000/xmlns/" || uri.equals("http://www.w3.org/2000/xmlns/")) {
continue;
}
count++;
}
return count;
}
protected void encodeAttributes(Attributes atts) throws IOException, FastInfosetException {
boolean addToTable;
boolean mustBeAddedToTable;
String value;
if (atts instanceof EncodingAlgorithmAttributes) {
final EncodingAlgorithmAttributes eAtts = (EncodingAlgorithmAttributes)atts;
Object data;
String alphabet;
for (int i = 0; i < eAtts.getLength(); i++) {
if (encodeAttribute(atts.getURI(i), atts.getQName(i), atts.getLocalName(i))) {
data = eAtts.getAlgorithmData(i);
// If data is null then there is no algorithm data
if (data == null) {
value = eAtts.getValue(i);
addToTable = isAttributeValueLengthMatchesLimit(value.length());
mustBeAddedToTable = eAtts.getToIndex(i);
alphabet = eAtts.getAlpababet(i);
if (alphabet == null) {
encodeNonIdentifyingStringOnFirstBit(value, _v.attributeValue, addToTable, mustBeAddedToTable);
} else if (alphabet == RestrictedAlphabet.DATE_TIME_CHARACTERS) {
encodeDateTimeNonIdentifyingStringOnFirstBit(
value, addToTable, mustBeAddedToTable);
} else if (alphabet == RestrictedAlphabet.NUMERIC_CHARACTERS) {
encodeNumericNonIdentifyingStringOnFirstBit(
value, addToTable, mustBeAddedToTable);
} else {
encodeNonIdentifyingStringOnFirstBit(value, _v.attributeValue, addToTable, mustBeAddedToTable);
}
} else {
encodeNonIdentifyingStringOnFirstBit(eAtts.getAlgorithmURI(i),
eAtts.getAlgorithmIndex(i), data);
}
}
}
} else {
for (int i = 0; i < atts.getLength(); i++) {
if (encodeAttribute(atts.getURI(i), atts.getQName(i), atts.getLocalName(i))) {
value = atts.getValue(i);
addToTable = isAttributeValueLengthMatchesLimit(value.length());
encodeNonIdentifyingStringOnFirstBit(value, _v.attributeValue, addToTable, false);
}
}
}
_b = EncodingConstants.TERMINATOR;
_terminate = true;
}
protected void encodeElement(String namespaceURI, String qName, String localName) throws IOException {
LocalNameQualifiedNamesMap.Entry entry = _v.elementName.obtainEntry(qName);
if (entry._valueIndex > 0) {
QualifiedName[] names = entry._value;
for (int i = 0; i < entry._valueIndex; i++) {
final QualifiedName n = names[i];
if ((namespaceURI == n.namespaceName || namespaceURI.equals(n.namespaceName))) {
encodeNonZeroIntegerOnThirdBit(names[i].index);
return;
}
}
}
encodeLiteralElementQualifiedNameOnThirdBit(namespaceURI, getPrefixFromQualifiedName(qName),
localName, entry);
}
protected boolean encodeAttribute(String namespaceURI, String qName, String localName) throws IOException {
LocalNameQualifiedNamesMap.Entry entry = _v.attributeName.obtainEntry(qName);
if (entry._valueIndex > 0) {
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 true;
}
}
}
return encodeLiteralAttributeQualifiedNameOnSecondBit(namespaceURI, getPrefixFromQualifiedName(qName),
localName, entry);
}
}