Example3.java

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00001 
00002 //
00003 // XML storage classes version 1.2
00004 //
00005 // Example3.java
00006 //
00007 // Copyright (c) 2005 Martin Fuchs <martin-fuchs@gmx.net>
00008 //
00009 
00010 
00011 /*
00012 
00013  All rights reserved.
00014 
00015  Redistribution and use in source and binary forms, with or without
00016  modification, are permitted provided that the following conditions are met:
00017 
00018  * Redistributions of source code must retain the above copyright
00019     notice, this list of conditions and the following disclaimer.
00020  * Redistributions in binary form must reproduce the above copyright
00021     notice, this list of conditions and the following disclaimer in
00022     the documentation and/or other materials provided with the
00023     distribution.
00024 
00025  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00026  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00028  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00029  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00030  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00031  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00032  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00033  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00034  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00035  POSSIBILITY OF SUCH DAMAGE.
00036 
00037 */
00038 
00039 package de.mfuchs;
00040 
00041 import static org.junit.Assert.assertEquals;
00042 import static org.junit.Assert.assertTrue;
00043 
00044 import org.junit.Test;
00045 
00046 import de.mfuchs.xmlstorage.XMLDoc;
00047 import de.mfuchs.xmlstorage.XMLInt;
00048 import de.mfuchs.xmlstorage.XMLIntRef;
00049 import de.mfuchs.xmlstorage.XMLPos;
00050 
00051 
00052 /**
00053  * Example to use XMLStorage for writing and
00054  * reading XML files.
00055  * 
00056  * @author martin
00057  */
00058 public class Example3
00059 {
00060     /**
00061      * Write an example XML file to disk.
00062      * @throws Exception
00063      */
00064     @Test public void testWrite() throws Exception
00065     {
00066         XMLDoc doc = new XMLDoc();
00067         XMLPos pos = new XMLPos(doc);
00068 
00069          // Zusammenstellen der XML-Struktur im Dokument 'doc'
00070         pos.create("Y_ACHSE");
00071           new XMLIntRef(pos, "Stopbits").assign(1);
00072           pos.put("Parity", "N");
00073         pos.back();
00074 
00075          // Schreiben der XML-Datei
00076         doc.writeFile("example3.xml");
00077     }
00078 
00079 
00080     /**
00081      * Read the example file back again.
00082      * @throws Exception
00083      */
00084     @Test public void testRead() throws Exception
00085     {
00086         XMLDoc doc = new XMLDoc();
00087 
00088          // Einlesen des XML-Files
00089         doc.readFile("example3.xml");
00090 
00091         XMLPos pos = new XMLPos(doc);
00092 
00093         int stopbits = 0;
00094         String parity = "";
00095 
00096          // Abfrage der Attributwerte des Elements "Y_ACHSE"
00097         if (pos.go("Y_ACHSE")) {
00098             stopbits = new XMLInt(pos, "Stopbits").intValue();
00099             parity = pos.get("Parity");
00100 
00101             pos.back();
00102         }
00103 
00104          // Ausgabe der ermittelten Werte
00105         System.out.println("Stopbits: " +  stopbits);
00106         System.out.println("Parity: " +  parity);
00107 
00108         assertTrue("Stopbits", 1==stopbits); 
00109         assertEquals("Parity", "N", parity); 
00110     }
00111 
00112 
00113     /**
00114      * Main function of Example3.
00115      * @param args unused command line arguments
00116      */
00117     public static void main(String[] args)
00118     {
00119         Example3 me = new Example3();
00120 
00121         try {
00122             me.testWrite();
00123             me.testRead();
00124         } catch(Exception e) {
00125             e.printStackTrace();
00126         }
00127     }
00128 }