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/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
*/
/*
* 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 com.sun.org.apache.xml.internal.serialize;
import com.sun.org.apache.xerces.internal.dom.AbortException;
import com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl;
import com.sun.org.apache.xerces.internal.dom.DOMErrorImpl;
import com.sun.org.apache.xerces.internal.dom.DOMLocatorImpl;
import com.sun.org.apache.xerces.internal.dom.DOMMessageFormatter;
import com.sun.org.apache.xerces.internal.dom.DOMNormalizer;
import com.sun.org.apache.xerces.internal.dom.DOMStringListImpl;
import com.sun.org.apache.xerces.internal.impl.Constants;
import com.sun.org.apache.xerces.internal.impl.XMLEntityManager;
import com.sun.org.apache.xerces.internal.util.DOMUtil;
import com.sun.org.apache.xerces.internal.util.NamespaceSupport;
import com.sun.org.apache.xerces.internal.util.SymbolTable;
import com.sun.org.apache.xerces.internal.util.XML11Char;
import com.sun.org.apache.xerces.internal.util.XMLChar;
import java.io.IOException;
import java.io.OutputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
import org.w3c.dom.DOMConfiguration;
import org.w3c.dom.DOMError;
import org.w3c.dom.DOMErrorHandler;
import org.w3c.dom.DOMException;
import org.w3c.dom.DOMStringList;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;
import org.w3c.dom.ls.LSException;
import org.w3c.dom.ls.LSOutput;
import org.w3c.dom.ls.LSSerializer;
import org.w3c.dom.ls.LSSerializerFilter;
/**
* EXPERIMENTAL: Implemenatation of DOM Level 3 org.w3c.ls.LSSerializer by
* delegating serialization calls to <CODE>XMLSerializer</CODE>. LSSerializer
* provides an API for serializing (writing) a DOM document out in an XML
* document. The XML data is written to an output stream. During serialization
* of XML data, namespace fixup is done when possible as defined in DOM Level 3
* Core, Appendix B.
*
* @author Elena Litani, IBM
* @author Gopal Sharma, Sun Microsystems
* @author Arun Yadav, Sun Microsystems
* @author Sunitha Reddy, Sun Microsystems
*
* @deprecated As of JDK 9, Xerces 2.9.0, replaced by
* {@link com.sun.org.apache.xml.internal.serializer.dom3.LSSerializerImpl}
*
* @LastModified: Oct 2017
*/
@Deprecated
public class DOMSerializerImpl implements LSSerializer, DOMConfiguration {
// TODO: When DOM Level 3 goes to REC replace method calls using
// reflection for: getXmlEncoding, getInputEncoding and getXmlEncoding
// with regular static calls on the Document object.
// data
// serializer
private XMLSerializer serializer;
// XML 1.1 serializer
private XML11Serializer xml11Serializer;
//Recognized parameters
private DOMStringList fRecognizedParameters;
/**
* REVISIT: Currently we handle 3 different configurations, would be nice
* just have one configuration that has different recognized parameters
* depending if it is used in Core/LS.
*/
protected short features = 0;
protected final static short NAMESPACES = 0x1 << 0;
protected final static short WELLFORMED = 0x1 << 1;
protected final static short ENTITIES = 0x1 << 2;
protected final static short CDATA = 0x1 << 3;
protected final static short SPLITCDATA = 0x1 << 4;
protected final static short COMMENTS = 0x1 << 5;
protected final static short DISCARDDEFAULT = 0x1 << 6;
protected final static short INFOSET = 0x1 << 7;
protected final static short XMLDECL = 0x1 << 8;
protected final static short NSDECL = 0x1 << 9;
protected final static short DOM_ELEMENT_CONTENT_WHITESPACE = 0x1 << 10;
protected final static short PRETTY_PRINT = 0x1 << 11;
// well-formness checking
private DOMErrorHandler fErrorHandler = null;
private final DOMErrorImpl fError = new DOMErrorImpl();
private final DOMLocatorImpl fLocator = new DOMLocatorImpl();
/**
* Constructs a new LSSerializer. The constructor turns on the namespace
* support in <code>XMLSerializer</code> and initializes the following
* fields: fNSBinder, fLocalNSBinder, fSymbolTable, fEmptySymbol,
* fXmlSymbol, fXmlnsSymbol, fNamespaceCounter, fFeatures.
*/
public DOMSerializerImpl() {
// set default features
features |= NAMESPACES;
features |= ENTITIES;
features |= COMMENTS;
features |= CDATA;
features |= SPLITCDATA;
features |= WELLFORMED;
features |= NSDECL;
features |= DOM_ELEMENT_CONTENT_WHITESPACE;
features |= DISCARDDEFAULT;
features |= XMLDECL;
serializer = new XMLSerializer();
initSerializer(serializer);
}
//
// LSSerializer methods
//
public DOMConfiguration getDomConfig() {
return this;
}
/**
* DOM L3-EXPERIMENTAL: Setter for boolean and object parameters
*/
public void setParameter(String name, Object value) throws DOMException {
if (value instanceof Boolean) {
boolean state = ((Boolean) value).booleanValue();
if (name.equalsIgnoreCase(Constants.DOM_INFOSET)) {
if (state) {
features &= ~ENTITIES;
features &= ~CDATA;
features |= NAMESPACES;
features |= NSDECL;
features |= WELLFORMED;
features |= COMMENTS;
}
// false does not have any effect
} else if (name.equalsIgnoreCase(Constants.DOM_XMLDECL)) {
features
= (short) (state ? features | XMLDECL : features & ~XMLDECL);
} else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACES)) {
features
= (short) (state
? features | NAMESPACES
: features & ~NAMESPACES);
serializer.fNamespaces = state;
} else if (name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)) {
features
= (short) (state
? features | SPLITCDATA
: features & ~SPLITCDATA);
} else if (name.equalsIgnoreCase(Constants.DOM_DISCARD_DEFAULT_CONTENT)) {
features
= (short) (state
? features | DISCARDDEFAULT
: features & ~DISCARDDEFAULT);
} else if (name.equalsIgnoreCase(Constants.DOM_WELLFORMED)) {
features
= (short) (state
? features | WELLFORMED
: features & ~WELLFORMED);
} else if (name.equalsIgnoreCase(Constants.DOM_ENTITIES)) {
features
= (short) (state
? features | ENTITIES
: features & ~ENTITIES);
} else if (name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)) {
features
= (short) (state
? features | CDATA
: features & ~CDATA);
} else if (name.equalsIgnoreCase(Constants.DOM_COMMENTS)) {
features
= (short) (state
? features | COMMENTS
: features & ~COMMENTS);
} else if (name.equalsIgnoreCase(Constants.DOM_FORMAT_PRETTY_PRINT)) {
features
= (short) (state
? features | PRETTY_PRINT
: features & ~PRETTY_PRINT);
} else if (name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE)
|| name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)) {
// || name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)) {
// true is not supported
if (state) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_SUPPORTED",
new Object[]{name});
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
}
} else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)) {
//namespace-declaration has effect only if namespaces is true
features
= (short) (state
? features | NSDECL
: features & ~NSDECL);
serializer.fNamespacePrefixes = state;
} else if (name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
|| name.equalsIgnoreCase(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)) {
// false is not supported
if (!state) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_SUPPORTED",
new Object[]{name});
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
}
} else {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_FOUND",
new Object[]{name});
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
}
} else if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)) {
if (value == null || value instanceof DOMErrorHandler) {
fErrorHandler = (DOMErrorHandler) value;
} else {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"TYPE_MISMATCH_ERR",
new Object[]{name});
throw new DOMException(DOMException.TYPE_MISMATCH_ERR, msg);
}
} else if (name.equalsIgnoreCase(Constants.DOM_RESOURCE_RESOLVER)
|| name.equalsIgnoreCase(Constants.DOM_SCHEMA_LOCATION)
|| name.equalsIgnoreCase(Constants.DOM_SCHEMA_TYPE)
|| name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)
&& value != null) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_SUPPORTED",
new Object[]{name});
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
} else {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_FOUND",
new Object[]{name});
throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
}
}
/**
* DOM L3-EXPERIMENTAL: Check if parameter can be set
*/
public boolean canSetParameter(String name, Object state) {
if (state == null) {
return true;
}
if (state instanceof Boolean) {
boolean value = ((Boolean) state).booleanValue();
if (name.equalsIgnoreCase(Constants.DOM_NAMESPACES)
|| name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)
|| name.equalsIgnoreCase(Constants.DOM_DISCARD_DEFAULT_CONTENT)
|| name.equalsIgnoreCase(Constants.DOM_XMLDECL)
|| name.equalsIgnoreCase(Constants.DOM_WELLFORMED)
|| name.equalsIgnoreCase(Constants.DOM_INFOSET)
|| name.equalsIgnoreCase(Constants.DOM_ENTITIES)
|| name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)
|| name.equalsIgnoreCase(Constants.DOM_COMMENTS)
|| name.equalsIgnoreCase(Constants.DOM_FORMAT_PRETTY_PRINT)
|| name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)) {
// both values supported
return true;
} else if (name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE)
|| name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)) {
// || name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)) {
// true is not supported
return !value;
} else if (name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
|| name.equalsIgnoreCase(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)) {
// false is not supported
return value;
}
} else if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)
&& state == null || state instanceof DOMErrorHandler) {
return true;
}
return false;
}
/**
* DOM Level 3 Core CR - Experimental.
*
* The list of the parameters supported by this
* <code>DOMConfiguration</code> object and for which at least one value can
* be set by the application. Note that this list can also contain parameter
* names defined outside this specification.
*/
public DOMStringList getParameterNames() {
if (fRecognizedParameters == null) {
List<String> parameters = new ArrayList<>();
//Add DOM recognized parameters
//REVISIT: Would have been nice to have a list of
//recognized parameters.
parameters.add(Constants.DOM_NAMESPACES);
parameters.add(Constants.DOM_SPLIT_CDATA);
parameters.add(Constants.DOM_DISCARD_DEFAULT_CONTENT);
parameters.add(Constants.DOM_XMLDECL);
parameters.add(Constants.DOM_CANONICAL_FORM);
parameters.add(Constants.DOM_VALIDATE_IF_SCHEMA);
parameters.add(Constants.DOM_VALIDATE);
parameters.add(Constants.DOM_CHECK_CHAR_NORMALIZATION);
parameters.add(Constants.DOM_DATATYPE_NORMALIZATION);
parameters.add(Constants.DOM_FORMAT_PRETTY_PRINT);
//parameters.add(Constants.DOM_NORMALIZE_CHARACTERS);
parameters.add(Constants.DOM_WELLFORMED);
parameters.add(Constants.DOM_INFOSET);
parameters.add(Constants.DOM_NAMESPACE_DECLARATIONS);
parameters.add(Constants.DOM_ELEMENT_CONTENT_WHITESPACE);
parameters.add(Constants.DOM_ENTITIES);
parameters.add(Constants.DOM_CDATA_SECTIONS);
parameters.add(Constants.DOM_COMMENTS);
parameters.add(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS);
parameters.add(Constants.DOM_ERROR_HANDLER);
//parameters.add(Constants.DOM_SCHEMA_LOCATION);
//parameters.add(Constants.DOM_SCHEMA_TYPE);
//Add recognized xerces features and properties
fRecognizedParameters = new DOMStringListImpl(parameters);
}
return fRecognizedParameters;
}
/**
* DOM L3-EXPERIMENTAL: Getter for boolean and object parameters
*/
public Object getParameter(String name) throws DOMException {
if (name.equalsIgnoreCase(Constants.DOM_NORMALIZE_CHARACTERS)) {
return null;
} else if (name.equalsIgnoreCase(Constants.DOM_COMMENTS)) {
return ((features & COMMENTS) != 0) ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACES)) {
return (features & NAMESPACES) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_XMLDECL)) {
return (features & XMLDECL) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_CDATA_SECTIONS)) {
return (features & CDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_ENTITIES)) {
return (features & ENTITIES) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_SPLIT_CDATA)) {
return (features & SPLITCDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_WELLFORMED)) {
return (features & WELLFORMED) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_NAMESPACE_DECLARATIONS)) {
return (features & NSDECL) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
|| name.equalsIgnoreCase(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)) {
return Boolean.TRUE;
} else if (name.equalsIgnoreCase(Constants.DOM_DISCARD_DEFAULT_CONTENT)) {
return ((features & DISCARDDEFAULT) != 0) ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_FORMAT_PRETTY_PRINT)) {
return ((features & PRETTY_PRINT) != 0) ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_INFOSET)) {
if ((features & ENTITIES) == 0
&& (features & CDATA) == 0
&& (features & NAMESPACES) != 0
&& (features & NSDECL) != 0
&& (features & WELLFORMED) != 0
&& (features & COMMENTS) != 0) {
return Boolean.TRUE;
}
return Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_CANONICAL_FORM)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equalsIgnoreCase(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE)
|| name.equalsIgnoreCase(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equalsIgnoreCase(Constants.DOM_DATATYPE_NORMALIZATION)) {
return Boolean.FALSE;
} else if (name.equalsIgnoreCase(Constants.DOM_ERROR_HANDLER)) {
return fErrorHandler;
} else if (name.equalsIgnoreCase(Constants.DOM_RESOURCE_RESOLVER)
|| name.equalsIgnoreCase(Constants.DOM_SCHEMA_LOCATION)
|| name.equalsIgnoreCase(Constants.DOM_SCHEMA_TYPE)) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_SUPPORTED",
new Object[]{name});
throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
} else {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_FOUND",
new Object[]{name});
throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
}
}
/**
* DOM L3 EXPERIMENTAL: Serialize the specified node as described above in
* the description of <code>LSSerializer</code>. The result of serializing
* the node is returned as a string. Writing a Document or Entity node
* produces a serialized form that is well formed XML. Writing other node
* types produces a fragment of text in a form that is not fully defined by
* this document, but that should be useful to a human for debugging or
* diagnostic purposes.
*
* @param wnode The node to be written.
* @return Returns the serialized data
* @exception DOMException DOMSTRING_SIZE_ERR: The resulting string is too
* long to fit in a <code>DOMString</code>.
* @exception LSException SERIALIZE_ERR: Unable to serialize the node. DOM
* applications should attach a <code>DOMErrorHandler</code> using the
* parameter &quot;<i>error-handler</i>&quot; to get details on error.
*/
public String writeToString(Node wnode) throws DOMException, LSException {
// determine which serializer to use:
XMLSerializer ser = null;
String ver = _getXmlVersion(wnode);
if (ver != null && ver.equals("1.1")) {
if (xml11Serializer == null) {
xml11Serializer = new XML11Serializer();
initSerializer(xml11Serializer);
}
// copy setting from "main" serializer to XML 1.1 serializer
copySettings(serializer, xml11Serializer);
ser = xml11Serializer;
} else {
ser = serializer;
}
StringWriter destination = new StringWriter();
try {
prepareForSerialization(ser, wnode);
ser._format.setEncoding("UTF-16");
ser.setOutputCharStream(destination);
if (wnode.getNodeType() == Node.DOCUMENT_NODE) {
ser.serialize((Document) wnode);
} else if (wnode.getNodeType() == Node.DOCUMENT_FRAGMENT_NODE) {
ser.serialize((DocumentFragment) wnode);
} else if (wnode.getNodeType() == Node.ELEMENT_NODE) {
ser.serialize((Element) wnode);
} else if (wnode.getNodeType() == Node.TEXT_NODE
|| wnode.getNodeType() == Node.COMMENT_NODE
|| wnode.getNodeType() == Node.ENTITY_REFERENCE_NODE
|| wnode.getNodeType() == Node.CDATA_SECTION_NODE
|| wnode.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
ser.serialize(wnode);
} else {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.SERIALIZER_DOMAIN,
"unable-to-serialize-node", null);
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fType = "unable-to-serialize-node";
error.fMessage = msg;
error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw new LSException(LSException.SERIALIZE_ERR, msg);
}
} catch (LSException lse) {
// Rethrow LSException.
throw lse;
} catch (AbortException e) {
return null;
} catch (RuntimeException e) {
throw (LSException) DOMUtil.createLSException(LSException.SERIALIZE_ERR, e).fillInStackTrace();
} catch (IOException ioe) {
// REVISIT: A generic IOException doesn't provide enough information
// to determine that the serialized document is too large to fit
// into a string. This could have thrown for some other reason. -- mrglavas
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"STRING_TOO_LONG",
new Object[]{ioe.getMessage()});
throw new DOMException(DOMException.DOMSTRING_SIZE_ERR, msg);
} finally {
ser.clearDocumentState();
}
return destination.toString();
}
/**
* DOM L3 EXPERIMENTAL: The end-of-line sequence of characters to be used in
* the XML being written out. The only permitted values are these:
* <dl>
* <dt><code>null</code></dt>
* <dd>
* Use a default end-of-line sequence. DOM implementations should choose the
* default to match the usual convention for text files in the environment
* being used. Implementations must choose a default sequence that matches
* one of those allowed by 2.11 "End-of-Line Handling". </dd>
* <dt>CR</dt>
* <dd>The carriage-return character (#xD).</dd>
* <dt>CR-LF</dt>
* <dd> The carriage-return and line-feed characters (#xD #xA). </dd>
* <dt>LF</dt>
* <dd> The line-feed character (#xA). </dd>
* </dl>
* <br>The default value for this attribute is <code>null</code>.
*/
public void setNewLine(String newLine) {
serializer._format.setLineSeparator(newLine);
}
/**
* DOM L3 EXPERIMENTAL: The end-of-line sequence of characters to be used in
* the XML being written out. The only permitted values are these:
* <dl>
* <dt><code>null</code></dt>
* <dd>
* Use a default end-of-line sequence. DOM implementations should choose the
* default to match the usual convention for text files in the environment
* being used. Implementations must choose a default sequence that matches
* one of those allowed by 2.11 "End-of-Line Handling". </dd>
* <dt>CR</dt>
* <dd>The carriage-return character (#xD).</dd>
* <dt>CR-LF</dt>
* <dd> The carriage-return and line-feed characters (#xD #xA). </dd>
* <dt>LF</dt>
* <dd> The line-feed character (#xA). </dd>
* </dl>
* <br>The default value for this attribute is <code>null</code>.
*/
public String getNewLine() {
return serializer._format.getLineSeparator();
}
/**
* When the application provides a filter, the serializer will call out to
* the filter before serializing each Node. Attribute nodes are never passed
* to the filter. The filter implementation can choose to remove the node
* from the stream or to terminate the serialization early.
*/
public LSSerializerFilter getFilter() {
return serializer.fDOMFilter;
}
/**
* When the application provides a filter, the serializer will call out to
* the filter before serializing each Node. Attribute nodes are never passed
* to the filter. The filter implementation can choose to remove the node
* from the stream or to terminate the serialization early.
*/
public void setFilter(LSSerializerFilter filter) {
serializer.fDOMFilter = filter;
}
// this initializes a newly-created serializer
private void initSerializer(XMLSerializer ser) {
ser.fNSBinder = new NamespaceSupport();
ser.fLocalNSBinder = new NamespaceSupport();
ser.fSymbolTable = new SymbolTable();
}
// copies all settings that could have been modified
// by calls to LSSerializer methods from one serializer to another.
// IMPORTANT: if new methods are implemented or more settings of
// the serializer are made alterable, this must be
// reflected in this method!
private void copySettings(XMLSerializer src, XMLSerializer dest) {
dest.fDOMErrorHandler = fErrorHandler;
dest._format.setEncoding(src._format.getEncoding());
dest._format.setLineSeparator(src._format.getLineSeparator());
dest.fDOMFilter = src.fDOMFilter;
}//copysettings
/**
* Serialize the specified node as described above in the general
* description of the <code>LSSerializer</code> interface. The output is
* written to the supplied <code>LSOutput</code>.
* <br> When writing to a <code>LSOutput</code>, the encoding is found by
* looking at the encoding information that is reachable through the
* <code>LSOutput</code> and the item to be written (or its owner document)
* in this order:
* <ol>
* <li> <code>LSOutput.encoding</code>,
* </li>
* <li>
* <code>Document.actualEncoding</code>,
* </li>
* <li>
* <code>Document.xmlEncoding</code>.
* </li>
* </ol>
* <br> If no encoding is reachable through the above properties, a default
* encoding of "UTF-8" will be used.
* <br> If the specified encoding is not supported an "unsupported-encoding"
* error is raised.
* <br> If no output is specified in the <code>LSOutput</code>, a
* "no-output-specified" error is raised.
*
* @param node The node to serialize.
* @param destination The destination for the serialized DOM.
* @return Returns <code>true</code> if <code>node</code> was successfully
* serialized and <code>false</code> in case the node couldn't be
* serialized.
*/
public boolean write(Node node, LSOutput destination) throws LSException {
if (node == null) {
return false;
}
XMLSerializer ser = null;
String ver = _getXmlVersion(node);
//determine which serializer to use:
if (ver != null && ver.equals("1.1")) {
if (xml11Serializer == null) {
xml11Serializer = new XML11Serializer();
initSerializer(xml11Serializer);
}
//copy setting from "main" serializer to XML 1.1 serializer
copySettings(serializer, xml11Serializer);
ser = xml11Serializer;
} else {
ser = serializer;
}
String encoding = null;
if ((encoding = destination.getEncoding()) == null) {
encoding = _getInputEncoding(node);
if (encoding == null) {
encoding = _getXmlEncoding(node);
if (encoding == null) {
encoding = "UTF-8";
}
}
}
try {
prepareForSerialization(ser, node);
ser._format.setEncoding(encoding);
OutputStream outputStream = destination.getByteStream();
Writer writer = destination.getCharacterStream();
String uri = destination.getSystemId();
if (writer == null) {
if (outputStream == null) {
if (uri == null) {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.SERIALIZER_DOMAIN,
"no-output-specified", null);
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fType = "no-output-specified";
error.fMessage = msg;
error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw new LSException(LSException.SERIALIZE_ERR, msg);
} else {
ser.setOutputByteStream(XMLEntityManager.createOutputStream(uri));
}
} else {
// byte stream was specified
ser.setOutputByteStream(outputStream);
}
} else {
// character stream is specified
ser.setOutputCharStream(writer);
}
if (node.getNodeType() == Node.DOCUMENT_NODE) {
ser.serialize((Document) node);
} else if (node.getNodeType() == Node.DOCUMENT_FRAGMENT_NODE) {
ser.serialize((DocumentFragment) node);
} else if (node.getNodeType() == Node.ELEMENT_NODE) {
ser.serialize((Element) node);
} else if (node.getNodeType() == Node.TEXT_NODE
|| node.getNodeType() == Node.COMMENT_NODE
|| node.getNodeType() == Node.ENTITY_REFERENCE_NODE
|| node.getNodeType() == Node.CDATA_SECTION_NODE
|| node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
ser.serialize(node);
} else {
return false;
}
} catch (UnsupportedEncodingException ue) {
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fException = ue;
error.fType = "unsupported-encoding";
error.fMessage = ue.getMessage();
error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw new LSException(LSException.SERIALIZE_ERR,
DOMMessageFormatter.formatMessage(
DOMMessageFormatter.SERIALIZER_DOMAIN,
"unsupported-encoding", null));
//return false;
} catch (LSException lse) {
// Rethrow LSException.
throw lse;
} catch (AbortException e) {
return false;
} catch (RuntimeException e) {
throw (LSException) DOMUtil.createLSException(LSException.SERIALIZE_ERR, e).fillInStackTrace();
} catch (Exception e) {
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fException = e;
error.fMessage = e.getMessage();
error.fSeverity = DOMError.SEVERITY_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw (LSException) DOMUtil.createLSException(LSException.SERIALIZE_ERR, e).fillInStackTrace();
} finally {
ser.clearDocumentState();
}
return true;
} //write
/**
* Serialize the specified node as described above in the general
* description of the <code>LSSerializer</code> interface. The output is
* written to the supplied URI.
* <br> When writing to a URI, the encoding is found by looking at the
* encoding information that is reachable through the item to be written (or
* its owner document) in this order:
* <ol>
* <li>
* <code>Document.inputEncoding</code>,
* </li>
* <li>
* <code>Document.xmlEncoding</code>.
* </li>
* </ol>
* <br> If no encoding is reachable through the above properties, a default
* encoding of "UTF-8" will be used.
* <br> If the specified encoding is not supported an "unsupported-encoding"
* error is raised.
*
* @param node The node to serialize.
* @param URI The URI to write to.
* @return Returns <code>true</code> if <code>node</code> was successfully
* serialized and <code>false</code> in case the node couldn't be
* serialized.
*/
public boolean writeToURI(Node node, String URI) throws LSException {
if (node == null) {
return false;
}
XMLSerializer ser = null;
String ver = _getXmlVersion(node);
if (ver != null && ver.equals("1.1")) {
if (xml11Serializer == null) {
xml11Serializer = new XML11Serializer();
initSerializer(xml11Serializer);
}
// copy setting from "main" serializer to XML 1.1 serializer
copySettings(serializer, xml11Serializer);
ser = xml11Serializer;
} else {
ser = serializer;
}
String encoding = _getInputEncoding(node);
if (encoding == null) {
encoding = _getXmlEncoding(node);
if (encoding == null) {
encoding = "UTF-8";
}
}
try {
prepareForSerialization(ser, node);
ser._format.setEncoding(encoding);
ser.setOutputByteStream(XMLEntityManager.createOutputStream(URI));
if (node.getNodeType() == Node.DOCUMENT_NODE) {
ser.serialize((Document) node);
} else if (node.getNodeType() == Node.DOCUMENT_FRAGMENT_NODE) {
ser.serialize((DocumentFragment) node);
} else if (node.getNodeType() == Node.ELEMENT_NODE) {
ser.serialize((Element) node);
} else if (node.getNodeType() == Node.TEXT_NODE
|| node.getNodeType() == Node.COMMENT_NODE
|| node.getNodeType() == Node.ENTITY_REFERENCE_NODE
|| node.getNodeType() == Node.CDATA_SECTION_NODE
|| node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
ser.serialize(node);
} else {
return false;
}
} catch (LSException lse) {
// Rethrow LSException.
throw lse;
} catch (AbortException e) {
return false;
} catch (RuntimeException e) {
throw (LSException) DOMUtil.createLSException(LSException.SERIALIZE_ERR, e).fillInStackTrace();
} catch (Exception e) {
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fException = e;
error.fMessage = e.getMessage();
error.fSeverity = DOMError.SEVERITY_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw (LSException) DOMUtil.createLSException(LSException.SERIALIZE_ERR, e).fillInStackTrace();
} finally {
ser.clearDocumentState();
}
return true;
} //writeURI
//
// Private methods
//
private void prepareForSerialization(XMLSerializer ser, Node node) {
ser.reset();
ser.features = features;
ser.fDOMErrorHandler = fErrorHandler;
ser.fNamespaces = (features & NAMESPACES) != 0;
ser.fNamespacePrefixes = (features & NSDECL) != 0;
ser._format.setIndenting((features & PRETTY_PRINT) != 0);
ser._format.setOmitComments((features & COMMENTS) == 0);
ser._format.setOmitXMLDeclaration((features & XMLDECL) == 0);
if ((features & WELLFORMED) != 0) {
// REVISIT: this is inefficient implementation of well-formness. Instead, we should check
// well-formness as we serialize the tree
Node next, root;
root = node;
Method versionChanged;
boolean verifyNames = true;
Document document = (node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node
: node.getOwnerDocument();
try {
versionChanged = document.getClass().getMethod("isXMLVersionChanged()", new Class<?>[]{});
if (versionChanged != null) {
verifyNames = ((Boolean) versionChanged.invoke(document, (Object[]) null)).booleanValue();
}
} catch (Exception e) {
//no way to test the version...
//ignore the exception
}
if (node.getFirstChild() != null) {
while (node != null) {
verify(node, verifyNames, false);
// Move down to first child
next = node.getFirstChild();
// No child nodes, so walk tree
while (next == null) {
// Move to sibling if possible.
next = node.getNextSibling();
if (next == null) {
node = node.getParentNode();
if (root == node) {
next = null;
break;
}
next = node.getNextSibling();
}
}
node = next;
}
} else {
verify(node, verifyNames, false);
}
}
}
private void verify(Node node, boolean verifyNames, boolean xml11Version) {
int type = node.getNodeType();
fLocator.fRelatedNode = node;
boolean wellformed;
switch (type) {
case Node.DOCUMENT_NODE: {
break;
}
case Node.DOCUMENT_TYPE_NODE: {
break;
}
case Node.ELEMENT_NODE: {
if (verifyNames) {
if ((features & NAMESPACES) != 0) {
wellformed = CoreDocumentImpl.isValidQName(node.getPrefix(), node.getLocalName(), xml11Version);
} else {
wellformed = CoreDocumentImpl.isXMLName(node.getNodeName(), xml11Version);
}
if (!wellformed) {
if (fErrorHandler != null) {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"wf-invalid-character-in-node-name",
new Object[]{"Element", node.getNodeName()});
DOMNormalizer.reportDOMError(fErrorHandler, fError, fLocator, msg, DOMError.SEVERITY_FATAL_ERROR,
"wf-invalid-character-in-node-name");
}
}
}
NamedNodeMap attributes = (node.hasAttributes()) ? node.getAttributes() : null;
if (attributes != null) {
for (int i = 0; i < attributes.getLength(); ++i) {
Attr attr = (Attr) attributes.item(i);
fLocator.fRelatedNode = attr;
DOMNormalizer.isAttrValueWF(fErrorHandler, fError, fLocator,
attributes, attr, attr.getValue(), xml11Version);
if (verifyNames) {
wellformed = CoreDocumentImpl.isXMLName(attr.getNodeName(), xml11Version);
if (!wellformed) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"wf-invalid-character-in-node-name",
new Object[]{"Attr", node.getNodeName()});
DOMNormalizer.reportDOMError(fErrorHandler, fError, fLocator, msg, DOMError.SEVERITY_FATAL_ERROR,
"wf-invalid-character-in-node-name");
}
}
}
}
break;
}
case Node.COMMENT_NODE: {
// only verify well-formness if comments included in the tree
if ((features & COMMENTS) != 0) {
DOMNormalizer.isCommentWF(fErrorHandler, fError, fLocator, ((Comment) node).getData(), xml11Version);
}
break;
}
case Node.ENTITY_REFERENCE_NODE: {
// only if entity is preserved in the tree
if (verifyNames && (features & ENTITIES) != 0) {
CoreDocumentImpl.isXMLName(node.getNodeName(), xml11Version);
}
break;
}
case Node.CDATA_SECTION_NODE: {
// verify content
DOMNormalizer.isXMLCharWF(fErrorHandler, fError, fLocator, node.getNodeValue(), xml11Version);
// the ]]> string will be checked during serialization
break;
}
case Node.TEXT_NODE: {
DOMNormalizer.isXMLCharWF(fErrorHandler, fError, fLocator, node.getNodeValue(), xml11Version);
break;
}
case Node.PROCESSING_INSTRUCTION_NODE: {
ProcessingInstruction pinode = (ProcessingInstruction) node;
String target = pinode.getTarget();
if (verifyNames) {
if (xml11Version) {
wellformed = XML11Char.isXML11ValidName(target);
} else {
wellformed = XMLChar.isValidName(target);
}
if (!wellformed) {
String msg
= DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"wf-invalid-character-in-node-name",
new Object[]{"Element", node.getNodeName()});
DOMNormalizer.reportDOMError(
fErrorHandler,
fError,
fLocator,
msg,
DOMError.SEVERITY_FATAL_ERROR,
"wf-invalid-character-in-node-name");
}
}
DOMNormalizer.isXMLCharWF(fErrorHandler, fError, fLocator, pinode.getData(), xml11Version);
break;
}
}
fLocator.fRelatedNode = null;
}
private String _getXmlVersion(Node node) {
Document doc = (node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node : node.getOwnerDocument();
if (doc != null) {
try {
return doc.getXmlVersion();
} // The VM ran out of memory or there was some other serious problem. Re-throw.
catch (VirtualMachineError | ThreadDeath vme) {
throw vme;
} // Ignore all other exceptions and errors
catch (Throwable t) {
}
}
return null;
}
private String _getInputEncoding(Node node) {
Document doc = (node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node : node.getOwnerDocument();
if (doc != null) {
try {
return doc.getInputEncoding();
} // The VM ran out of memory or there was some other serious problem. Re-throw.
catch (VirtualMachineError | ThreadDeath vme) {
throw vme;
} // Ignore all other exceptions and errors
catch (Throwable t) {
}
}
return null;
}
private String _getXmlEncoding(Node node) {
Document doc = (node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node : node.getOwnerDocument();
if (doc != null) {
try {
return doc.getXmlEncoding();
} // The VM ran out of memory or there was some other serious problem. Re-throw.
catch (VirtualMachineError | ThreadDeath vme) {
throw vme;
} // Ignore all other exceptions and errors
catch (Throwable t) {
}
}
return null;
}
} //DOMSerializerImpl