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use jaxp transformer instead of dom serializer to try fix old-xerces test failure

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1842974 13f79535-47bb-0310-9956-ffa450edef68
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PJ Fanning 2018-10-05 19:52:24 +00:00
parent b326a5cd01
commit 268c9230cd
1 changed files with 45 additions and 32 deletions
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77
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFBuiltinTableStyle.java
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@ -18,7 +18,9 @@
package org.apache.poi.xssf.usermodel;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.nio.charset.StandardCharsets;
import java.util.EnumMap;
import java.util.Map;
@ -33,11 +35,13 @@ import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.ls.DOMImplementationLS;
import org.w3c.dom.ls.LSSerializer;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
/**
* Table style names defined in the OOXML spec.
* Table style names defined in the OOXML spec.
* The actual styling is defined in presetTableStyles.xml
*/
public enum XSSFBuiltinTableStyle {
@ -329,16 +333,16 @@ public enum XSSFBuiltinTableStyle {
PivotStyleDark27,
/***/
PivotStyleDark28,
;
;
/**
* Interestingly, this is initialized after the enum instances, so using an {@link EnumMap} works.
*/
private static final Map<XSSFBuiltinTableStyle, TableStyle> styleMap = new EnumMap<>(XSSFBuiltinTableStyle.class);
private XSSFBuiltinTableStyle() {
}
/**
* @return built-in {@link TableStyle} definition
*/
@ -346,9 +350,10 @@ public enum XSSFBuiltinTableStyle {
init();
return styleMap.get(this);
}
/**
* NOTE: only checks by name, not definition.
*
* @param style
* @return true if the style represents a built-in style, false if it is null or a custom style
*/
@ -361,6 +366,7 @@ public enum XSSFBuiltinTableStyle {
return false;
}
}
/**
* Only init once - thus the synchronized. Lazy, after creating instances,
* and only when a style is actually needed, to avoid overhead for uses
@ -370,8 +376,8 @@ public enum XSSFBuiltinTableStyle {
* during evaluation if desired.
*/
public static synchronized void init() {
if (! styleMap.isEmpty()) return;
if (!styleMap.isEmpty()) return;
/*
* initialize map. Every built-in has this format:
* <styleName>
@ -388,18 +394,18 @@ public enum XSSFBuiltinTableStyle {
final InputStream is = XSSFBuiltinTableStyle.class.getResourceAsStream("presetTableStyles.xml");
try {
final Document doc = DocumentHelper.readDocument(is);
final NodeList styleNodes = doc.getDocumentElement().getChildNodes();
for (int i=0; i < styleNodes.getLength(); i++) {
for (int i = 0; i < styleNodes.getLength(); i++) {
final Node node = styleNodes.item(i);
if (node.getNodeType() != Node.ELEMENT_NODE) continue; // only care about elements
final Element tag = (Element) node;
String styleName = tag.getTagName();
XSSFBuiltinTableStyle builtIn = XSSFBuiltinTableStyle.valueOf(styleName);
Node dxfsNode = tag.getElementsByTagName("dxfs").item(0);
Node tableStyleNode = tag.getElementsByTagName("tableStyles").item(0);
// hack because I can't figure out how to get XMLBeans to parse a sub-element in a standalone manner
// - build a fake styles.xml file with just this built-in
StylesTable styles = new StylesTable();
@ -413,28 +419,35 @@ public enum XSSFBuiltinTableStyle {
throw new RuntimeException(e);
}
}
private static String styleXML(Node dxfsNode, Node tableStyleNode) {
private static String styleXML(Node dxfsNode, Node tableStyleNode) throws IOException, TransformerException {
// built-ins doc uses 1-based dxf indexing, Excel uses 0 based.
// add a dummy node to adjust properly.
dxfsNode.insertBefore(dxfsNode.getOwnerDocument().createElement("dxf"), dxfsNode.getFirstChild());
DOMImplementationLS lsImpl = (DOMImplementationLS)dxfsNode.getOwnerDocument().getImplementation().getFeature("LS", "3.0");
LSSerializer lsSerializer = lsImpl.createLSSerializer();
lsSerializer.getDomConfig().setParameter("xml-declaration", false);
StringBuilder sb = new StringBuilder();
sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n")
.append("<styleSheet xmlns=\"http://schemas.openxmlformats.org/spreadsheetml/2006/main\" "
+ "xmlns:mc=\"http://schemas.openxmlformats.org/markup-compatibility/2006\" "
+ "xmlns:x14ac=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac\" "
+ "xmlns:x16r2=\"http://schemas.microsoft.com/office/spreadsheetml/2015/02/main\" "
+ "mc:Ignorable=\"x14ac x16r2\">\n");
sb.append(lsSerializer.writeToString(dxfsNode));
sb.append(lsSerializer.writeToString(tableStyleNode));
sb.append("</styleSheet>");
return sb.toString();
.append("<styleSheet xmlns=\"http://schemas.openxmlformats.org/spreadsheetml/2006/main\" ")
.append("xmlns:mc=\"http://schemas.openxmlformats.org/markup-compatibility/2006\" ")
.append("xmlns:x14ac=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac\" ")
.append("xmlns:x16r2=\"http://schemas.microsoft.com/office/spreadsheetml/2015/02/main\" ")
.append("mc:Ignorable=\"x14ac x16r2\">\n");
sb.append(writeToString(dxfsNode));
sb.append(writeToString(tableStyleNode));
sb.append("</styleSheet>");
return sb.toString();
}
private static String writeToString(Node node) throws IOException, TransformerException {
TransformerFactory tf = TransformerFactory.newInstance();
try (StringWriter sw = new StringWriter()){
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.transform(new DOMSource(node), new StreamResult(sw));
return sw.toString();
}
}
/**
* implementation for built-in styles
*/
@ -451,7 +464,7 @@ public enum XSSFBuiltinTableStyle {
this.builtIn = builtIn;
this.style = style;
}
public String getName() {
return style.getName();
}
@ -463,10 +476,10 @@ public enum XSSFBuiltinTableStyle {
public boolean isBuiltin() {
return true;
}
public DifferentialStyleProvider getStyle(TableStyleType type) {
return style.getStyle(type);
}
}
}