Android Open Source - myglob G L B Invoice X M L Parser

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * MyGlob Android Application/*from  w ww.ja v  a2 s.  c  o m*/
 * 
 * Copyright (C) 2010 Petar Petrov
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package net.vexelon.mobileops;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

/**
 * Parser invoice XML file into key/value collection.
 * We might have more than one account info therefore we parse all available rows.
 */
public class GLBInvoiceXMLParser extends DefaultHandler {
  
  public static final String TAG_ROWDATA = "ROWDATA";
  public static final String TAG_ROW = "ROW";
  
  public static final String TAG_DATE = "InvDatum";
  public static final String TAG_INVNUM = "InvNum";
  public static final String TAG_MSISDN = "MSISDN";
  public static final String TAG_PREV_AMOUNTDUE = "PrevAm";
  public static final String TAG_PAID_AMOUNTDUE = "Pmnts";
  public static final String TAG_FIXED_CHARGE = "FixCha";
  public static final String TAG_DISCOUNT = "Disc";
  public static final String TAG_DISCOUNT_PACKAGE = "PackDisc";
  public static final String TAG_DISCOUNT_LOYALITY = "Lbonus";
  public static final String TAG_DISCOUNT_GLOBUL_UBB = "GLOBUL_UBB";
  public static final String TAG_DISCOUNT_GLOBUL_GARANT = "GLOBUL_GARANT";
  public static final String TAG_TOTAL_NO_VAT = "Tot-VAT";
  public static final String TAG_VAT = "VatAm";
  public static final String TAG_TOTALVAT = "InvAm";
  public static final String TAG_TOTAL_DUEAMOUNT = "TotDueAm";  
  public static final String TAG_TOTAL = "TotServ";  
  
  protected List<Map<String, String>> accountsList;
  protected InputStream inputStream;
  
  private StringBuilder buffer;
  private boolean parsingRow = false;
  private Map<String,String> currentMap;
  private long totalBytesParsed = 0;
  
  public GLBInvoiceXMLParser(InputStream inputStream) {
    this.inputStream = inputStream;
  }
  
  public List<Map<String, String>> build() throws SAXException {
    accountsList = new ArrayList<Map<String,String>>();
    buffer = new StringBuilder(50);
      try {
        SAXParserFactory saxFactory = SAXParserFactory.newInstance();
        SAXParser saxParser;
      saxParser = saxFactory.newSAXParser();
        XMLReader saxReader = saxParser.getXMLReader();
        saxReader.setContentHandler(this);
      saxReader.parse(new InputSource(inputStream));
    } catch (ParserConfigurationException e) {
      throw new SAXException("Invoice data reader failed!", e);
    } catch (IOException e) {
      throw new SAXException("Invoice data reader failed!", e);
    }
    
    return accountsList;
  }
  
  @Override
  public void startElement(String uri, String localName, String qName,
      Attributes attributes) throws SAXException {
    if (localName.equals(TAG_ROW)) {
      parsingRow = true;
      currentMap = new HashMap<String, String>();
    }
  }
  
  @Override
  public void endElement(String uri, String localName, String qName)
      throws SAXException {
    if (localName.equals(TAG_ROW)) {
      parsingRow = false;
      accountsList.add(currentMap);
    } else if (parsingRow) {
      currentMap.put(localName, buffer.toString().trim());
    }
    totalBytesParsed += buffer.length();
    buffer.setLength(0);
  }
  
  @Override
  public void characters(char[] ch, int start, int length)
      throws SAXException {
    if (parsingRow) {
      buffer.append(ch, start, length);
    }
  }

  public long getTotalBytesParsed() {
    return totalBytesParsed;
  }
  
}

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