1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package transform;
  25 
  26 import java.io.StringReader;
  27 import java.io.StringWriter;
  28 
  29 import javax.xml.transform.Source;
  30 import javax.xml.transform.Transformer;
  31 import javax.xml.transform.TransformerException;
  32 import javax.xml.transform.TransformerFactory;
  33 import javax.xml.transform.URIResolver;
  34 import javax.xml.transform.stream.StreamResult;
  35 import javax.xml.transform.stream.StreamSource;
  36 
  37 import org.testng.annotations.DataProvider;
  38 import org.testng.annotations.Test;
  39 
  40 import static org.testng.Assert.assertEquals;
  41 
  42 /*
  43  * @summary This class contains tests for XSLT functions.
  44  */
  45 
  46 public class XSLTFunctionsTest {
  47 
  48     /**
  49      * @bug 8062518
  50      * Verifies that a reference to the DTM created by XSLT document function is
  51      * actually read from the DTM by an extension function.
  52      * @param xml Content of xml file to process
  53      * @param xsl stylesheet content that loads external document {@code externalDoc}
  54      *        with XSLT 'document' function and then reads it with
  55      *        DocumentExtFunc.test() function
  56      * @param externalDoc Content of the external xml document
  57      * @param expectedResult Expected transformation result
  58      **/
  59     @Test(dataProvider = "document")
  60     public void testDocument(final String xml, final String xsl,
  61                              final String externalDoc, final String expectedResult) throws Exception {
  62         // Prepare sources for transormation
  63         Source src = new StreamSource(new StringReader(xml));
  64         Source xslsrc = new StreamSource(new StringReader(xsl));
  65 
  66         // Create factory and transformer
  67         TransformerFactory tf = TransformerFactory.newInstance();
  68         Transformer t = tf.newTransformer( xslsrc );
  69         t.setErrorListener(tf.getErrorListener());
  70 
  71         // Set URI Resolver to return the newly constructed xml
  72         // stream source object from xml test string
  73         t.setURIResolver(new URIResolver() {
  74             @Override
  75             public Source resolve(String href, String base)
  76                     throws TransformerException {
  77                 if (href.contains("externalDoc")) {
  78                     return new StreamSource(new StringReader(externalDoc));
  79                 } else {
  80                     return new StreamSource(new StringReader(xml));
  81                 }
  82             }
  83         });
  84 
  85         // Prepare output stream
  86         StringWriter xmlResultString = new StringWriter();
  87         StreamResult xmlResultStream = new StreamResult(xmlResultString);
  88 
  89         //Transform the xml
  90         t.transform(src, xmlResultStream);
  91 
  92         // If the document can't be accessed and the bug is in place then
  93         // reported exception will be thrown during transformation
  94         System.out.println("Transformation result:"+xmlResultString.toString().trim());
  95 
  96         // Check the result - it should contain two (node name, node values) entries -
  97         // one for original document, another for a document created with
  98         // call to 'document' function
  99         assertEquals(xmlResultString.toString().trim(), expectedResult);
 100     }
 101 
 102     @DataProvider(name = "document")
 103     public static Object[][] documentTestData() {
 104         return new Object[][] {
 105             {documentTestXml, documentTestXsl, documentTestExternalDoc, documentTesteExpectedResult},
 106         };
 107     }
 108 
 109     static final String documentTestXml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Test>Doc</Test>";
 110 
 111     static final String documentTestExternalDoc = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Test>External Doc</Test>";
 112 
 113     static final String documentTestXsl = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
 114             + "<xsl:transform version=\"1.0\""
 115             + " xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\" "
 116             + " xmlns:cfunc=\"http://xml.apache.org/xalan/java/\">"
 117             + "<xsl:template match=\"/\">"
 118             + "<xsl:element name=\"root\">"
 119             + "<xsl:variable name=\"other_doc\" select=\"document('externalDoc')\"/>"
 120             + "<!-- Source -->"
 121             + "<xsl:value-of select=\"cfunc:transform.DocumentExtFunc.test(/Test)\"/>"
 122             + "<!-- document() -->"
 123             + "<xsl:value-of select=\"cfunc:transform.DocumentExtFunc.test($other_doc/Test)\"/>"
 124             + "</xsl:element></xsl:template></xsl:transform>";
 125 
 126     static final String documentTesteExpectedResult = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
 127                                                     + "<root>[Test:Doc][Test:External Doc]</root>";
 128 }