1 /*
   2  * Copyright (c) 2014, 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 package org.xml.sax.ptests;
  24 
  25 import org.xml.sax.helpers.DefaultHandler;
  26 import org.xml.sax.helpers.LocatorImpl;
  27 import org.xml.sax.Locator;
  28 import org.xml.sax.Attributes;
  29 import java.io.BufferedWriter;
  30 import java.io.IOException;
  31 import java.io.FileWriter;
  32 import org.xml.sax.SAXException;
  33 
  34 class MyNSContentHandler extends DefaultHandler implements AutoCloseable{
  35     /**
  36      * Prefix for written string.
  37      */
  38     private final static String WRITE_ERROR = "bWrite error";
  39 
  40     /**
  41      * FileWriter to write output file.
  42      */
  43     private final BufferedWriter bWriter;
  44 
  45     /**
  46      * Default locator.
  47      */
  48     Locator locator = new LocatorImpl();
  49 
  50     /**
  51      * Initiate FileWrite.
  52      * @param outputFileName file name of output file.
  53      * @throws SAXException when open output file failed.
  54      */
  55     public MyNSContentHandler(String outputFileName) throws SAXException {
  56         try {
  57             bWriter = new BufferedWriter(new FileWriter(outputFileName));
  58         } catch (IOException ex) {
  59             throw new SAXException(ex);
  60         }
  61     }
  62 
  63     /**
  64      * Write characters tag along with content of characters when meet
  65      * characters event.
  66      * @throws IOException error happen when writing file.
  67      */
  68     @Override
  69     public void characters(char[] ch, int start, int length)
  70             throws SAXException {
  71         String s = new String(ch, start, length);
  72         println("characters...length is:" + s.length() + "\n"
  73                 + "<" + s + ">");
  74     }
  75 
  76     /**
  77      * Write endDocument tag then flush the content and close the file when meet
  78      * endDocument event.
  79      * @throws IOException error happen when writing file or closing file.
  80      */
  81     @Override
  82     public void endDocument() throws SAXException {
  83         try {
  84             println("endDocument...");
  85             bWriter.flush();
  86             bWriter.close();
  87         } catch (IOException ex) {
  88             throw new SAXException(WRITE_ERROR, ex);
  89         }
  90     }
  91 
  92     /**
  93      * Write endElement tag with namespaceURI, localName, qName to the file when
  94      * meet endElement event.
  95      * @throws IOException error happen when writing file.
  96      */
  97     @Override
  98     public void endElement(String namespaceURI, String localName, String qName)
  99             throws SAXException {
 100         println("endElement...\n" + "namespaceURI: <" + namespaceURI
 101                 + "> localName: <" + localName + "> qName: <" + qName + ">");
 102     }
 103 
 104     /**
 105      * Write endPrefixMapping tag along with prefix to the file when meet
 106      * endPrefixMapping event.
 107      * @throws IOException error happen when writing file.
 108      */
 109     @Override
 110     public void endPrefixMapping(String prefix) throws SAXException {
 111         println("endPrefixMapping...\n" + "prefix: <" + prefix + ">");
 112     }
 113 
 114     /**
 115      * Write ignorableWhitespace tag along with white spaces when meet
 116      * ignorableWhitespace event.
 117      * @throws IOException error happen when writing file.
 118      */
 119     @Override
 120     public void ignorableWhitespace(char[] ch, int start, int length)
 121             throws SAXException {
 122         String s = new String(ch, start, length);
 123         println("ignorableWhitespace...\n" + s
 124                 + " ignorable white space string length: " + s.length());
 125     }
 126 
 127     /**
 128      * Write processingInstruction tag along with target name and target data
 129      * when meet processingInstruction event.
 130      * @throws IOException error happen when writing file.
 131      */
 132     @Override
 133     public void processingInstruction(String target, String data)
 134             throws SAXException {
 135         println("processingInstruction...target:<" + target
 136                 + "> data: <" + data + ">");
 137     }
 138 
 139     /**
 140      * Write setDocumentLocator tag when meet setDocumentLocator event.
 141      */
 142     @Override
 143     public void setDocumentLocator(Locator locator) {
 144         try {
 145             this.locator = locator;
 146             println("setDocumentLocator...");
 147         } catch (SAXException ex) {
 148             System.err.println(WRITE_ERROR + ex);
 149         }
 150     }
 151 
 152     /**
 153      * Write skippedEntity tag along with entity name when meet skippedEntity
 154      * event.
 155      * @throws IOException error happen when writing file.
 156      */
 157     @Override
 158     public void skippedEntity(String name) throws SAXException {
 159         println("skippedEntity...\n" + "name: <" + name + ">");
 160     }
 161 
 162     /**
 163      * Write startDocument tag when meet startDocument event.
 164      * @throws IOException error happen when writing file.
 165      */
 166     @Override
 167     public void startDocument() throws SAXException {
 168         println("startDocument...");
 169     }
 170 
 171     /**
 172      * Write startElement tag along with namespaceURI, localName, qName, number
 173      * of attributes and line number when meet startElement event.
 174      * @throws IOException error happen when writing file.
 175      */
 176     @Override
 177     public void startElement(String namespaceURI, String localName,
 178             String qName, Attributes atts) throws SAXException {
 179         println("startElement...\n" + "namespaceURI: <" + namespaceURI
 180                 + "> localName: <" + localName + "> qName: <" + qName
 181                 + "> Number of Attributes: <" + atts.getLength()
 182                 + "> Line# <" + locator.getLineNumber() + ">");
 183     }
 184 
 185     /**
 186      * Write startPrefixMapping tag along with prefix and uri when meet
 187      * startPrefixMapping event.
 188      * @throws IOException error happen when writing file.
 189      */
 190     @Override
 191     public void startPrefixMapping(String prefix, String uri)
 192             throws SAXException {
 193         println("startPrefixMapping...\n" + "prefix: <" + prefix
 194                 + "> uri: <" + uri + ">");
 195     }
 196     /**
 197      * Write outString to output file.
 198      * @param outString string to be written.
 199      * @throws SAXException
 200      */
 201     private void println(String outString) throws SAXException {
 202         try {
 203             bWriter.write( outString, 0, outString.length());
 204             bWriter.newLine();
 205         } catch (IOException ex) {
 206             throw new SAXException(WRITE_ERROR, ex);
 207         }
 208     }
 209 
 210     /**
 211      * Close writer if it's initiated.
 212      * @throws IOException if any I/O error when close writer. 
 213      */
 214     @Override
 215     public void close() throws IOException {
 216         if (bWriter != null)
 217             bWriter.close();
 218     }
 219 }