Java tutorial
/* * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.xpn.xwiki.internal.pdf; import java.io.File; import java.io.InputStream; import java.io.StringReader; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.sax.SAXResult; import javax.xml.transform.sax.SAXSource; import javax.xml.transform.stream.StreamSource; import org.apache.commons.io.IOUtils; import org.apache.commons.io.output.NullOutputStream; import org.apache.fop.apps.EnvironmentProfile; import org.apache.fop.apps.EnvironmentalProfileFactory; import org.apache.fop.apps.FOUserAgent; import org.apache.fop.apps.Fop; import org.apache.fop.apps.FopFactory; import org.apache.fop.apps.FopFactoryBuilder; import org.apache.fop.apps.io.ResourceResolverFactory; import org.custommonkey.xmlunit.Diff; import org.custommonkey.xmlunit.XMLUnit; import org.junit.BeforeClass; import org.junit.Rule; import org.junit.Test; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; import org.xwiki.rendering.internal.parser.xhtml.wikimodel.XWikiXMLReaderFactory; import org.xwiki.test.AllLogRule; import org.xwiki.test.annotation.ComponentList; import org.xwiki.xml.EntityResolver; import org.xwiki.xml.XMLReaderFactory; import org.xwiki.xml.XMLUtils; import org.xwiki.xml.internal.DefaultXMLReaderFactory; import org.xwiki.xml.internal.LocalEntityResolver; import com.xpn.xwiki.pdf.api.PdfExport; import com.xpn.xwiki.test.MockitoOldcoreRule; import static org.junit.Assert.*; /** * Integration tests to verify that the {@code html2fo.xsl} XSL stylesheet works. * * @version $Id: 7c42a5e25e23df86c0f9fee6ae5c586eff3165b6 $ */ @ComponentList({ DefaultXMLReaderFactory.class, XWikiXMLReaderFactory.class, LocalEntityResolver.class }) public class XHTML2FOTest { @Rule public AllLogRule logRule = new AllLogRule(); @Rule public MockitoOldcoreRule oldcore = new MockitoOldcoreRule(); private static FopFactory fopFactory; private static FOUserAgent foUserAgent; private static TransformerFactory transformerFactory; @BeforeClass public static void setUp() throws Exception { EnvironmentProfile environmentProfile = EnvironmentalProfileFactory.createDefault(new File(".").toURI(), ResourceResolverFactory.createDefaultResourceResolver()); FopFactoryBuilder builder = new FopFactoryBuilder(environmentProfile); fopFactory = builder.build(); foUserAgent = fopFactory.newFOUserAgent(); transformerFactory = TransformerFactory.newInstance(); } /** * Verifies that we can have some style using the "font" attribute. */ @Test public void transformWithFontStyle() throws Exception { String xml = constructXML("<p style=\"display: block; margin: 1em 0; color: red; \">\n" + " <span style=\"font: 7px 14px Courier; \">Test</span>\n" + "</p>"); String transformedXML = getTransformedXML(xml); String expectedXML = IOUtils.toString(getClass().getClassLoader().getResourceAsStream("xhtml2fo.expected")); XMLUnit.setIgnoreWhitespace(true); Diff diff = new Diff(expectedXML, transformedXML); assertTrue("XML is not similar [" + diff.toString() + "]", diff.identical()); } @Test public void transformWhenUnrecognizedCSSProperties() throws Exception { String xml = constructXML("<div style=\"box-sizing: border-box; \">\n" + "<span style=\"text-justify: inter-ideograph; line-height: normal; text-autospace: none;\">text</span>\n" + "</div>"); String transformedXML = getTransformedXML(xml); assertFalse("Generated FO shouldn't contain 'box-sizing'", transformedXML.contains("box-sizing")); assertFalse("Generated FO shouldn't contain 'text-justify'", transformedXML.contains("text-justify")); assertFalse("Generated FO shouldn't contain 'text-autospace'", transformedXML.contains("text-autospace")); } private String constructXML(String xmlContent) { return "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" " + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n" + "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n" + "<head>\n" + " <title>\n" + " Main.test2 - test2\n" + " </title>\n" + " <meta content=\"text/html; charset=UTF-8\" http-equiv=\"Content-Type\" />\n" + " <meta content=\"en\" name=\"language\" />\n" + "</head>\n" + "<body class=\"exportbody\" id=\"body\" pdfcover=\"0\" pdftoc=\"0\" " + "style=\"display: block; margin: 8pt; \">\n" + " <div class=\"pdfheader\" style=\"display: block; \">\n" + " Main.test2 - test2\n" + " \n" + " </div>\n" + " <div class=\"pdffooter\" style=\"display: block; \">\n" + " Page <span class=\"page-number\">\n" + " </span> of <span class=\"page-total\">\n" + " </span> - last modified by Administrator on 2016/01/25 14:07\n" + " \n" + "</div>\n" + "<div id=\"xwikimaincontainer\" style=\"display: block; \">\n" + " <div id=\"xwikimaincontainerinner\" style=\"display: block; \">\n" + " <div id=\"xwikicontent\" style=\"display: block; \">\n" + xmlContent + "\n" + " </div>\n" + " </div>\n" + "</div>\n" + "</body>\n" + "</html>\n"; } private String getTransformedXML(String xml) throws Exception { InputStream xslt = getClass().getClassLoader().getResourceAsStream("xhtml2fo.xsl"); assertNotNull(xslt); XMLReaderFactory xmlReaderFactory = this.oldcore.getMocker().getInstance(XMLReaderFactory.class); XMLReader xmlReader = xmlReaderFactory.createXMLReader(); EntityResolver entityResolver = this.oldcore.getMocker().getInstance(EntityResolver.class); xmlReader.setEntityResolver(entityResolver); SAXSource xmlSource = new SAXSource(xmlReader, new InputSource(new StringReader(xml))); SAXSource xsltSource = new SAXSource(xmlReader, new InputSource(xslt)); String transformedXML = XMLUtils.transform(xmlSource, xsltSource); validateFOP(transformedXML); return transformedXML; } private void validateFOP(String transformedXML) throws Exception { // Run FOP to verify that the XML passed as input is some valid FO and doesn't generate errors Fop fop = fopFactory.newFop(new PdfExport.ExportType("application/pdf", "pdf").getMimeType(), foUserAgent, NullOutputStream.NULL_OUTPUT_STREAM); Transformer transformer = transformerFactory.newTransformer(); Source source = new StreamSource(new StringReader(transformedXML)); Result res = new SAXResult(fop.getDefaultHandler()); transformer.transform(source, res); } }