1 /*
   2  * Copyright (c) 2014, 2016, 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.util;
  25 
  26 import java.io.FileInputStream;
  27 import java.io.FileOutputStream;
  28 import java.io.InputStream;
  29 
  30 import javax.xml.stream.XMLEventReader;
  31 import javax.xml.stream.XMLInputFactory;
  32 import javax.xml.stream.XMLOutputFactory;
  33 import javax.xml.stream.XMLStreamReader;
  34 import javax.xml.stream.XMLStreamWriter;
  35 import javax.xml.transform.Result;
  36 import javax.xml.transform.Source;
  37 import javax.xml.transform.stax.StAXResult;
  38 import javax.xml.transform.stax.StAXSource;
  39 
  40 import org.testng.Assert;
  41 
  42 import transform.TransformerUtilFactory;
  43 import transform.VersionEventWriter;
  44 
  45 public class StAXUtil extends TransformerUtil {
  46 
  47     private static StAXUtil instance = null;
  48 
  49     /** Creates a new instance of StAXUtil */
  50     private StAXUtil() {
  51     }
  52 
  53     public static synchronized StAXUtil getInstance() throws Exception {
  54         if (instance == null)
  55             instance = new StAXUtil();
  56         return instance;
  57     }
  58 
  59     public Source prepareSource(InputStream is) throws Exception {
  60         XMLEventReader reader = XMLInputFactory.newInstance().createXMLEventReader(is);
  61         return new StAXSource(reader);
  62     }
  63 
  64     public Result prepareResult() throws Exception {
  65         VersionEventWriter writer = new VersionEventWriter();
  66         return new StAXResult(writer);
  67     }
  68 
  69     public void checkResult(Result staxResult, String version) throws Exception {
  70         VersionEventWriter writer = (VersionEventWriter) ((StAXResult) staxResult).getXMLEventWriter();
  71         Assert.assertTrue(writer.getVersion().equals(version), "Expected XML Version is 1.1, but actual version " + writer.getVersion());
  72     }
  73 
  74     public void checkResult(Result staxResult, String version, String encoding) throws Exception {
  75         VersionEventWriter writer = (VersionEventWriter) ((StAXResult) staxResult).getXMLEventWriter();
  76         Assert.assertTrue(writer.getVersion().equals(version), "Expected XML Version is 1.1, but actual version " + writer.getVersion());
  77         Assert.assertTrue(writer.getEncoding().equals(encoding), "Expected encoding is " + encoding + ", but actual encoding " + writer.getEncoding());
  78     }
  79 
  80     public Source prepareStreamSource(InputStream is) throws Exception {
  81         XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(is);
  82         return new StAXSource(reader);
  83     }
  84 
  85     public Result prepareStreamResult() throws Exception {
  86         XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(new FileOutputStream(TEMP_FILE));
  87         return new StAXResult(writer);
  88     }
  89 
  90     public void checkStreamResult(Result staxResult, String version) throws Exception {
  91         ((StAXResult) staxResult).getXMLStreamWriter().close();
  92         ((StreamUtil) TransformerUtilFactory.getUtil(TransformerUtilFactory.STREAM)).checkStream(new FileInputStream(TEMP_FILE), version);
  93     }
  94 }