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Various StAX improvements.

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This commit is contained in:
Arjen Poutsma
2010-08-27 11:35:27 +00:00
parent b72cca5403
commit 9aafa1c6b2
6 changed files with 139 additions and 42 deletions
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14
org.springframework.core/src/main/java/org/springframework/util/xml/AbstractStaxXMLReader.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2009 the original author or authors.
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@ import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
@@ -108,17 +107,6 @@ abstract class AbstractStaxXMLReader extends AbstractXMLReader {
return this.namespacePrefixesFeature;
}
/**
* Sett the SAX <code>Locator</code> based on the given StAX <code>Location</code>.
* @param location the location
* @see ContentHandler#setDocumentLocator(org.xml.sax.Locator)
*/
protected void setLocator(Location location) {
if (getContentHandler() != null) {
getContentHandler().setDocumentLocator(new StaxLocator(location));
}
}
/**
* Convert a <code>QName</code> to a qualified name, as used by DOM and SAX.
* The returned string has a format of <code>prefix:localName</code> if the

79
org.springframework.core/src/main/java/org/springframework/util/xml/StaxEventXMLReader.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2009 the original author or authors.
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.springframework.util.xml;
import java.util.Iterator;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
@@ -31,11 +32,13 @@ import javax.xml.stream.events.EntityReference;
import javax.xml.stream.events.Namespace;
import javax.xml.stream.events.NotationDeclaration;
import javax.xml.stream.events.ProcessingInstruction;
import javax.xml.stream.events.StartDocument;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.ext.Locator2;
import org.xml.sax.helpers.AttributesImpl;
import org.springframework.util.StringUtils;
@@ -86,10 +89,14 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
while (reader.hasNext() && elementDepth >= 0) {
XMLEvent event = reader.nextEvent();
if (!event.isStartDocument() && !event.isEndDocument() && !documentStarted) {
handleStartDocument();
handleStartDocument(event);
documentStarted = true;
}
switch (event.getEventType()) {
case XMLStreamConstants.START_DOCUMENT:
handleStartDocument(event);
documentStarted = true;
break;
case XMLStreamConstants.START_ELEMENT:
elementDepth++;
handleStartElement(event.asStartElement());
@@ -108,11 +115,6 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
case XMLStreamConstants.CDATA:
handleCharacters(event.asCharacters());
break;
case XMLStreamConstants.START_DOCUMENT:
setLocator(event.getLocation());
handleStartDocument();
documentStarted = true;
break;
case XMLStreamConstants.END_DOCUMENT:
handleEndDocument();
documentEnded = true;
@@ -140,6 +142,51 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
}
private void handleStartDocument(final XMLEvent event) throws SAXException {
if (getContentHandler() != null) {
final Location location = event.getLocation();
getContentHandler().setDocumentLocator(new Locator2() {
public int getColumnNumber() {
return location.getColumnNumber();
}
public int getLineNumber() {
return location.getLineNumber();
}
public String getPublicId() {
return location.getPublicId();
}
public String getSystemId() {
return location.getSystemId();
}
public String getXMLVersion() {
if (event.isStartDocument()) {
StartDocument startDocument = (StartDocument) event;
String version = startDocument.getVersion();
return StringUtils.hasLength(version) ? version : "1.0";
}
return null;
}
public String getEncoding() {
if (event.isStartDocument()) {
StartDocument startDocument = (StartDocument) event;
if (startDocument.encodingSet()) {
return startDocument.getCharacterEncodingScheme();
}
}
return null;
}
});
getContentHandler().startDocument();
}
}
private void handleStartElement(StartElement startElement) throws SAXException {
if (getContentHandler() != null) {
QName qName = startElement.getName();
@@ -174,12 +221,6 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
}
}
private void handleEndDocument() throws SAXException {
if (getContentHandler() != null) {
getContentHandler().endDocument();
}
}
private void handleEndElement(EndElement endElement) throws SAXException {
if (getContentHandler() != null) {
QName qName = endElement.getName();
@@ -197,6 +238,12 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
}
}
private void handleEndDocument() throws SAXException {
if (getContentHandler() != null) {
getContentHandler().endDocument();
}
}
private void handleNotationDeclaration(NotationDeclaration declaration) throws SAXException {
if (getDTDHandler() != null) {
getDTDHandler().notationDecl(declaration.getName(), declaration.getPublicId(), declaration.getSystemId());
@@ -216,12 +263,6 @@ class StaxEventXMLReader extends AbstractStaxXMLReader {
}
}
private void handleStartDocument() throws SAXException {
if (getContentHandler() != null) {
getContentHandler().startDocument();
}
}
private void handleComment(Comment comment) throws SAXException {
if (getLexicalHandler() != null) {
char[] ch = comment.getText().toCharArray();

34
org.springframework.core/src/main/java/org/springframework/util/xml/StaxStreamXMLReader.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2009 the original author or authors.
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -17,12 +17,14 @@
package org.springframework.util.xml;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.ext.Locator2;
import org.xml.sax.helpers.AttributesImpl;
import org.springframework.util.StringUtils;
@@ -91,7 +93,6 @@ class StaxStreamXMLReader extends AbstractStaxXMLReader {
handleCharacters();
break;
case XMLStreamConstants.START_DOCUMENT:
setLocator(reader.getLocation());
handleStartDocument();
documentStarted = true;
break;
@@ -123,6 +124,35 @@ class StaxStreamXMLReader extends AbstractStaxXMLReader {
private void handleStartDocument() throws SAXException {
if (getContentHandler() != null) {
final Location location = reader.getLocation();
getContentHandler().setDocumentLocator(new Locator2() {
public int getColumnNumber() {
return location.getColumnNumber();
}
public int getLineNumber() {
return location.getLineNumber();
}
public String getPublicId() {
return location.getPublicId();
}
public String getSystemId() {
return location.getSystemId();
}
public String getXMLVersion() {
String version = reader.getVersion();
return StringUtils.hasLength(version) ? version : "1.0";
}
public String getEncoding() {
return reader.getEncoding();
}
});
getContentHandler().startDocument();
if (reader.standaloneSet()) {
setStandalone(reader.isStandalone());

4
org.springframework.core/src/main/java/org/springframework/util/xml/XMLEventStreamReader.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2009 the original author or authors.
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -61,7 +61,7 @@ class XMLEventStreamReader extends AbstractXMLStreamReader {
return ((StartDocument) event).getVersion();
}
else {
throw new IllegalStateException();
return null;
}
}