Add class ApacheFOPHeroldTest

apache-fop/src/test/java/org/baeldung/java/ApacheFOPHeroldTest.java

@@ -0,0 +1,92 @@
+package org.baeldung.java;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URL;
+
+import javax.xml.transform.Result;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMResult;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.sax.SAXResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.fop.apps.Fop;
+import org.apache.fop.apps.FopFactory;
+import org.apache.xmlgraphics.util.MimeConstants;
+import org.dbdoclet.trafo.TrafoScriptManager;
+import org.dbdoclet.trafo.html.docbook.DocBookTransformer;
+import org.dbdoclet.trafo.script.Script;
+import org.junit.Test;
+import org.w3c.dom.Document;
+
+public class ApacheFOPHeroldTest {
+    private String[] inputUrls = { "http://inprogress.baeldung.com/?p=1430","https://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html" };
+    private String style1 = "src/test/resources/docbook-xsl/fo/docbook.xsl";
+    private String output_prefix = "src/test/resources/";
+    private String xmlFile = "src/test/resources/input.xml";
+
+    @Test
+    public void whenTransformFromHeroldToPDF_thenCorrect() throws Exception{
+            int len = inputUrls.length;
+            for (int i = 0; i < len; i++) {
+                fromHTMLTOXMLUsingHerold(inputUrls[i]);
+                final Document fo = fromXMLFileToFO();
+                fromFODocumentToPDF(fo, output_prefix + i + ".pdf");
+            }
+    }
+
+    private void fromHTMLTOXMLUsingHerold(String input) throws Exception {
+        Script script;
+        TrafoScriptManager mgr = new TrafoScriptManager();
+        File profileFile = new File("src/test/resources/default.her");
+        script = mgr.parseScript(profileFile);
+        final DocBookTransformer transformer = new DocBookTransformer();
+        transformer.setScript(script);
+
+        transformer.convert(getInputStream(input), new FileOutputStream(xmlFile));
+    }
+
+    private Document fromXMLFileToFO() throws Exception {
+        final Source source = new StreamSource(new FileInputStream(xmlFile));
+        final DOMResult result = new DOMResult();
+        final Transformer transformer = createTransformer(style1);
+        transformer.transform(source, result);
+        return (Document) result.getNode();
+    }
+
+    private void fromFODocumentToPDF(final Document fo, final String outputFile) throws Exception {
+        final FopFactory fopFactory = FopFactory.newInstance();
+        final OutputStream outStream = new BufferedOutputStream(new FileOutputStream(new File(outputFile)));
+
+        final Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, outStream);
+        final TransformerFactory factory = TransformerFactory.newInstance();
+        final Transformer transformer = factory.newTransformer();
+        final DOMSource src = new DOMSource(fo);
+        final Result res = new SAXResult(fop.getDefaultHandler());
+        transformer.transform(src, res);
+
+        outStream.close();
+    }
+
+    private Transformer createTransformer(final String styleFile) throws Exception {
+        final TransformerFactory factory = TransformerFactory.newInstance();
+        final Transformer transformer = factory.newTransformer(new StreamSource(styleFile));
+
+        return transformer;
+    }
+
+    private InputStream getInputStream(String input) throws IOException {
+        URL url = new URL(input);
+        return url.openStream();
+    }
+
+}
+

apache-fop/src/test/resources/default.her

@@ -0,0 +1,13 @@
+transformation html2docbook;
+
+section HTML {
+	encoding = "UTF-8";
+	exclude = ["//*[@id='inner-wrapper']/*[position()<7]" , "//*[@class='post-meta']" , "//*[@class='entry-title']","//*[@id='respond']" ,"//*[@id='comments']","//*[@class='post-entries']","//*[@class='social']/../../h3[last()]" ,"//*[@class='social']/.." ];
+	section-numbering-pattern = "(((\d\.)+)?\d?\.?\p{Z}*).*";
+}
+
+section DocBook {
+   add-index = false;
+   decompose-tables = false;
+   encoding = "UTF-8";
+}