/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2004 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2002, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xml.serialize;
import java.io.File;
import java.io.FileOutputStream;
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.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.Vector;
import org.apache.xerces.dom.AttrImpl;
import org.apache.xerces.dom.AttributeMap;
import org.apache.xerces.dom.CoreDocumentImpl;
import org.apache.xerces.dom.DOMErrorImpl;
import org.apache.xerces.dom.DOMLocatorImpl;
import org.apache.xerces.dom.DOMMessageFormatter;
import org.apache.xerces.dom.DOMNormalizer;
import org.apache.xerces.dom.DOMStringListImpl;
import org.apache.xerces.dom3.DOMConfiguration;
import org.apache.xerces.dom3.DOMError;
import org.apache.xerces.dom3.DOMErrorHandler;
import org.apache.xerces.dom3.DOMStringList;
import org.apache.xerces.impl.Constants;
import org.apache.xerces.impl.XMLEntityManager;
import org.apache.xerces.util.NamespaceSupport;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.util.XML11Char;
import org.apache.xerces.util.XMLChar;
import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
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;
/**
* 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
* @version $Id: DOMSerializerImpl.java,v 1.15 2004/01/30 00:16:50 elena Exp $
*/
public class DOMSerializerImpl implements LSSerializer, DOMConfiguration {
// 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;
// well-formness checking
private DOMErrorHandler fErrorHandler = null;
private final DOMErrorImpl fError = new DOMErrorImpl();
private final DOMLocatorImpl fLocator = new DOMLocatorImpl();
private static final RuntimeException abort = new RuntimeException();
/**
* 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.equals(Constants.DOM_INFOSET)){
if (state){
features &=~ENTITIES;
features &=~CDATA;
features |=NAMESPACES;
features |=WELLFORMED;
features |=COMMENTS;
}
// false does not have any effect
} else if (name.equals(Constants.DOM_XMLDECL)) {
features =
(short) (state ? features | XMLDECL : features & ~XMLDECL);
} else if (name.equals(Constants.DOM_NAMESPACES)) {
features =
(short) (state
? features | NAMESPACES
: features & ~NAMESPACES);
serializer.fNamespaces = state;
} else if (name.equals(Constants.DOM_SPLIT_CDATA)) {
features =
(short) (state
? features | SPLITCDATA
: features & ~SPLITCDATA);
} else if (name.equals(Constants.DOM_DISCARD_DEFAULT_CONTENT)) {
features =
(short) (state
? features | DISCARDDEFAULT
: features & ~DISCARDDEFAULT);
} else if (name.equals(Constants.DOM_WELLFORMED)) {
features =
(short) (state
? features | WELLFORMED
: features & ~WELLFORMED);
} else if (name.equals(Constants.DOM_ENTITIES)){
features =
(short) (state
? features | ENTITIES
: features & ~ENTITIES);
}
else if (name.equals(Constants.DOM_CDATA_SECTIONS)){
features =
(short) (state
? features | CDATA
: features & ~CDATA);
}
else if (name.equals(Constants.DOM_COMMENTS)){
features =
(short) (state
? features | COMMENTS
: features & ~COMMENTS);
}
else if (name.equals(Constants.DOM_CANONICAL_FORM)
|| name.equals(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equals(Constants.DOM_VALIDATE)
|| name.equals(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equals(Constants.DOM_DATATYPE_NORMALIZATION)
|| name.equals(Constants.DOM_FORMAT_PRETTY_PRINT)
|| name.equals(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.equals(Constants.DOM_NAMESPACE_DECLARATIONS)
|| name.equals(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
|| name.equals(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.equals(Constants.DOM_ERROR_HANDLER)) {
if (value == null || value instanceof DOMErrorHandler) {
fErrorHandler = (DOMErrorHandler)value;
} else {
// REVISIT: modify error exception to TYPE_MISMATCH
String msg =
DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"TYPE_MISMATCH_ERR",
new Object[] { name });
throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
}
} else if (
name.equals(Constants.DOM_RESOURCE_RESOLVER)
|| name.equals(Constants.DOM_SCHEMA_LOCATION)
|| name.equals(Constants.DOM_SCHEMA_TYPE)
&& 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 instanceof Boolean){
boolean value = ((Boolean)state).booleanValue();
if (name.equals(Constants.DOM_NAMESPACES)
|| name.equals(Constants.DOM_SPLIT_CDATA)
|| name.equals(Constants.DOM_DISCARD_DEFAULT_CONTENT)
|| name.equals(Constants.DOM_XMLDECL)
|| name.equals(Constants.DOM_WELLFORMED)
|| name.equals(Constants.DOM_INFOSET)
|| name.equals(Constants.DOM_ENTITIES)
|| name.equals(Constants.DOM_CDATA_SECTIONS)
|| name.equals(Constants.DOM_COMMENTS)){
// both values supported
return true;
}
else if (name.equals(Constants.DOM_CANONICAL_FORM)
|| name.equals(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equals(Constants.DOM_VALIDATE)
|| name.equals(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equals(Constants.DOM_DATATYPE_NORMALIZATION)
|| name.equals(Constants.DOM_FORMAT_PRETTY_PRINT)
|| name.equals(Constants.DOM_NORMALIZE_CHARACTERS)) {
// true is not supported
return !value;
}
else if (name.equals(Constants.DOM_NAMESPACE_DECLARATIONS)
|| name.equals(Constants.DOM_ELEMENT_CONTENT_WHITESPACE)
|| name.equals(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)) {
// false is not supported
return value;
}
}
else if (name.equals(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){
Vector parameters = new Vector();
//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.equals(Constants.DOM_COMMENTS)) {
return ((features & COMMENTS) != 0) ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_NAMESPACES)) {
return (features & NAMESPACES) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_XMLDECL)) {
return (features & XMLDECL) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_CDATA_SECTIONS)) {
return (features & CDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_ENTITIES)) {
return (features & ENTITIES) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_SPLIT_CDATA)) {
return (features & SPLITCDATA) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_WELLFORMED)) {
return (features & WELLFORMED) != 0 ? Boolean.TRUE : Boolean.FALSE;
} else if (name.equals(Constants.DOM_ELEMENT_CONTENT_WHITESPACE) ||
name.equals(Constants.DOM_IGNORE_UNKNOWN_CHARACTER_DENORMALIZATIONS)
|| name.equals(Constants.DOM_NAMESPACE_DECLARATIONS)) {
return Boolean.TRUE;
}else if (name.equals(Constants.DOM_DISCARD_DEFAULT_CONTENT)){
return ((features & DISCARDDEFAULT)!=0)?Boolean.TRUE:Boolean.FALSE;
}else if (name.equals(Constants.DOM_INFOSET)){
if ((features & ENTITIES) == 0 &&
(features & CDATA) ==0 &&
(features & NAMESPACES) !=0 &&
(features & WELLFORMED) !=0 &&
(features & COMMENTS) !=0){
return Boolean.TRUE;
}
return Boolean.FALSE;
} else if (name.equals (Constants.DOM_FORMAT_PRETTY_PRINT)
|| name.equals(Constants.DOM_NORMALIZE_CHARACTERS)
|| name.equals(Constants.DOM_CANONICAL_FORM)
|| name.equals(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equals(Constants.DOM_CHECK_CHAR_NORMALIZATION)
|| name.equals(Constants.DOM_VALIDATE)
|| name.equals(Constants.DOM_VALIDATE_IF_SCHEMA)
|| name.equals(Constants.DOM_DATATYPE_NORMALIZATION)) {
return Boolean.FALSE;
} else if (name.equals(Constants.DOM_ERROR_HANDLER)) {
return fErrorHandler;
} else if (
name.equals(Constants.DOM_RESOURCE_RESOLVER)
|| name.equals(Constants.DOM_SCHEMA_LOCATION)
|| name.equals(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, or <code>null</code> in case a
* failure occured and the failure wasn't canceled by the error
* handler.
* @exception DOMException
* DOMSTRING_SIZE_ERR: The resulting string is too long to fit in a
* <code>DOMString</code>.
*/
public String writeToString(Node wnode) throws DOMException, LSException {
// determine which serializer to use:
Document doc = (wnode.getNodeType() == Node.DOCUMENT_NODE)?(Document)wnode:wnode.getOwnerDocument();
Method getVersion = null;
XMLSerializer ser = null;
String ver = null;
// this should run under JDK 1.1.8...
try {
getVersion = doc.getClass().getMethod("getXmlVersion", new Class[]{});
if(getVersion != null ) {
ver = (String)getVersion.invoke(doc, null);
}
} catch (Exception e) {
// no way to test the version...
// ignore the exception
}
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.setOutputCharStream(destination);
if (wnode == null)
return null;
else 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
return null;
} catch (RuntimeException e) {
if (e == DOMNormalizer.abort){
// stopped at user request
return null;
}
throw new LSException(LSException.SERIALIZE_ERR, e.toString());
} catch (IOException ioe) {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"STRING_TOO_LONG",
new Object[] { ioe.getMessage()});
throw new DOMException(DOMException.DOMSTRING_SIZE_ERR,msg);
}
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;
Method getVersion = null;
XMLSerializer ser = null;
String ver = null;
Document fDocument =(node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node
: node.getOwnerDocument();
// this should run under JDK 1.1.8...
try {
getVersion = fDocument.getClass().getMethod("getXmlVersion", new Class[] {});
if (getVersion != null) {
ver = (String) getVersion.invoke(fDocument, null);
}
} catch (Exception e) {
//no way to test the version...
//ignore the exception
}
//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) {
try {
Method getEncoding =
fDocument.getClass().getMethod("getActualEncoding", new Class[] {});
if (getEncoding != null) {
encoding = (String) getEncoding.invoke(fDocument, null);
}
} catch (Exception e) {
// ignore the exception
}
if (encoding == null) {
try {
Method getEncoding =
fDocument.getClass().getMethod("getXmlEncoding", new Class[] {});
if (getEncoding != null) {
encoding = (String) getEncoding.invoke(fDocument, null);
}
} catch (Exception e) {
// ignore the exception
}
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) {
if (ser.fDOMErrorHandler != null) {
DOMErrorImpl error = new DOMErrorImpl();
error.fType = "no-output-specified";
error.fMessage = "no-output-specified";
error.fSeverity = DOMError.SEVERITY_FATAL_ERROR;
ser.fDOMErrorHandler.handleError(error);
}
throw new LSException(LSException.SERIALIZE_ERR, "no-output-specified");
}
else {
// URI was specified. Handle relative URIs.
String expanded = XMLEntityManager.expandSystemId(uri, null, true);
URL url = new URL(expanded != null ? expanded : uri);
OutputStream out = null;
String protocol = url.getProtocol();
String host = url.getHost();
// Use FileOutputStream if this URI is for a local file.
if (protocol.equals("file")
&& (host == null || host.length() == 0 || host.equals("localhost"))) {
// REVISIT: We have to decode %nn sequences. For
// now files containing spaces and other characters
// which were escaped in the URI will fail. -- mrglavas
out = new FileOutputStream(new File(url.getPath()));
}
// Try to write to some other kind of URI. Some protocols
// won't support this, though HTTP should work.
else {
URLConnection urlCon = url.openConnection();
urlCon.setDoInput(false);
urlCon.setDoOutput(true);
urlCon.setUseCaches(false); // Enable tunneling.
if (urlCon instanceof HttpURLConnection) {
// The DOM L3 LS CR says if we are writing to an HTTP URI
// it is to be done with an HTTP PUT.
HttpURLConnection httpCon = (HttpURLConnection) urlCon;
httpCon.setRequestMethod("PUT");
}
out = urlCon.getOutputStream();
}
ser.setOutputByteStream(out);
}
}
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
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);
}
return false;
} catch (RuntimeException e) {
if (e == DOMNormalizer.abort){
// stopped at user request
return false;
}
throw new LSException(LSException.SERIALIZE_ERR, e.toString());
} 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);
}
e.printStackTrace();
throw new LSException(LSException.SERIALIZE_ERR, e.toString());
}
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.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.
* @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;
}
Method getXmlVersion = null;
XMLSerializer ser = null;
String ver = null;
String encoding = null;
Document fDocument =(node.getNodeType() == Node.DOCUMENT_NODE)
? (Document) node
: node.getOwnerDocument();
// this should run under JDK 1.1.8...
try {
getXmlVersion =
fDocument.getClass().getMethod("getXmlVersion", new Class[] {});
if (getXmlVersion != null) {
ver = (String) getXmlVersion.invoke(fDocument, null);
}
} catch (Exception e) {
// no way to test the version...
// ignore the exception
}
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;
}
try {
Method getEncoding =
fDocument.getClass().getMethod("getActualEncoding", new Class[] {});
if (getEncoding != null) {
encoding = (String) getEncoding.invoke(fDocument, null);
}
} catch (Exception e) {
// ignore the exception
}
if (encoding == null) {
try {
Method getEncoding =
fDocument.getClass().getMethod("getXmlEncoding", new Class[] {});
if (getEncoding != null) {
encoding = (String) getEncoding.invoke(fDocument, null);
}
} catch (Exception e) {
// ignore the exception
}
if (encoding == null) {
encoding = "UTF-8";
}
}
try {
prepareForSerialization(ser, node);
ser._format.setEncoding(encoding);
// URI was specified. Handle relative URIs.
String expanded = XMLEntityManager.expandSystemId(URI, null, true);
URL url = new URL(expanded != null ? expanded : URI);
OutputStream out = null;
String protocol = url.getProtocol();
String host = url.getHost();
// Use FileOutputStream if this URI is for a local file.
if (protocol.equals("file")
&& (host == null || host.length() == 0 || host.equals("localhost"))) {
// REVISIT: We have to decode %nn sequences. For
// now files containing spaces and other characters
// which were escaped in the URI will fail. -- mrglavas
out = new FileOutputStream(new File(url.getPath()));
}
// Try to write to some other kind of URI. Some protocols
// won't support this, though HTTP should work.
else {
URLConnection urlCon = url.openConnection();
urlCon.setDoInput(false);
urlCon.setDoOutput(true);
urlCon.setUseCaches(false); // Enable tunneling.
if (urlCon instanceof HttpURLConnection) {
// The DOM L3 LS CR says if we are writing to an HTTP URI
// it is to be done with an HTTP PUT.
HttpURLConnection httpCon = (HttpURLConnection) urlCon;
httpCon.setRequestMethod("PUT");
}
out = urlCon.getOutputStream();
}
ser.setOutputByteStream(out);
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
return false;
} catch (RuntimeException e) {
if (e == DOMNormalizer.abort){
// stopped at user request
return false;
}
throw new LSException(LSException.SERIALIZE_ERR, e.toString());
} 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 new LSException(LSException.SERIALIZE_ERR, e.toString());
}
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._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, null)).booleanValue();
}
} catch (Exception e) {
//no way to test the version...
//ignore the exception
}
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;
}
}
}
private void verify (Node node, boolean verifyNames, boolean xml11Version){
int type = node.getNodeType();
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 (!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, null,
"wf-invalid-character-in-node-name");
}
}
}
}
AttributeMap attributes = (node.hasAttributes()) ? (AttributeMap) node.getAttributes() : null;
if (attributes != null) {
for (int i = 0; i < attributes.getLength(); ++i) {
Attr attr = (Attr) attributes.item(i);
DOMNormalizer.isAttrValueWF( fErrorHandler, fError, fLocator,
attributes,(AttrImpl) attr, attr.getValue(), xml11Version);
if (verifyNames) {
wellformed = CoreDocumentImpl.isXMLName( node.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, null,
"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,
null,
"wf-invalid-character-in-node-name");
}
}
DOMNormalizer.isXMLCharWF(fErrorHandler, fError, fLocator, pinode.getData(), xml11Version);
break;
}
}
}
}//DOMSerializerImpl