Android Open Source - opentraining Exercise Type X M L Parser

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * /*  w ww  .  j a  v  a  2  s .com*/
 * This is OpenTraining, an Android application for planning your your fitness training.
 * Copyright (C) 2012-2014 Christian Skubich
 * 
 * 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 de.skubware.opentraining.db.parser;

import javax.xml.parsers.*;

import org.xml.sax.*;
import org.xml.sax.helpers.*;

import android.content.Context;
import android.util.Log;

import de.skubware.opentraining.basic.*;
import de.skubware.opentraining.basic.ExerciseType.ExerciseSource;
import de.skubware.opentraining.basic.License.LicenseType;
import de.skubware.opentraining.db.DataProvider;
import de.skubware.opentraining.db.IDataProvider;

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.SortedSet;
import java.util.TreeSet;

/**
 * An implementation of a SaxParser for parsing .xml files to a ExerciseType
 * object
 * 
 */
public class ExerciseTypeXMLParser extends DefaultHandler {
  /** Tag for logging */
  private static final String TAG = "ExTypeXMLParser";

  private SAXParser parser = null;
  
  private Context mContext;
  
  private IDataProvider mDataProvider;


  private ExerciseType exType;
  private ExerciseSource mExerciseSource;
  // required argument
  private String name;

  // optional arguments
  private Map<Locale,String> translationMap = new HashMap<Locale, String>(); // optional
  private String description;
  private List<File> imagePaths = new ArrayList<File>();
  private Map<File, License> imageLicenseMap = new HashMap<File, License>();
  private SortedSet<SportsEquipment> requiredEquipment = new TreeSet<SportsEquipment>();
  private SortedSet<Muscle> activatedMuscles = new TreeSet<Muscle>();
  private Map<Muscle, ActivationLevel> activationMap = new HashMap<Muscle, ActivationLevel>();
  private SortedSet<ExerciseTag> exerciseTag = new TreeSet<ExerciseTag>();
  private List<URL> relatedURL = new ArrayList<URL>();
  private List<String> hints = new ArrayList<String>();
  private File iconPath = null;

  public ExerciseTypeXMLParser(Context context, ExerciseSource exerciseSource) {
    mContext = context;
    mExerciseSource = exerciseSource;
    mDataProvider = new DataProvider(mContext);
    
    // create parser
    try {
      SAXParserFactory fac = SAXParserFactory.newInstance();
      parser = fac.newSAXParser();
    } catch (Exception e) {
      e.printStackTrace();
    }

  }

  /**
   * Parses xml file
   * 
   * @param Einzulesende
   *            Datei
   */
  public ExerciseType read(File f) {
    try {
      parser.parse(f, this);

      return this.exType;
    } catch (SAXException e) {
      Log.e(TAG, "Error parsing file: " + f.toString() + "\n" + e.getMessage());
      e.printStackTrace();
    } catch (Exception e) {
      Log.e(TAG, "Error parsing file: " + f.toString() + "\n" + e.getMessage());
      e.printStackTrace();
    }

    return null;
  }
  
  /**
   * Parses xml file
   * 
   * @param Einzulesende
   *            Datei
   */
  public ExerciseType read(InputStream f) {
    try {
      parser.parse(f, this);

      return this.exType;
    } catch (SAXException e) {
      Log.e(TAG, "Error parsing file: " + f.toString() + "\n" + e.getMessage(), e);
    } catch (Exception e) {
      Log.e(TAG, "Error parsing file: " + f.toString() + "\n" + e.getMessage(), e);
    }

    return null;
  }

  /**
   * Called when element begins.
   * Errors will be logged.
   * 
   * @param uri
   *            name space prefix
   * @param name
   *            name of element
   * @param qname
   *            full qualified name with uri and name
   * @param attributes
   *            The attributes
   * 
   * @throws SAXException
   *             if parsing fails
   */
  @Override
  public void startElement(String uri, String name, String qname, Attributes attributes) throws SAXException {
    
    if (qname.equals("ExerciseType")) {
      this.name = attributes.getValue("name");
      String language = attributes.getValue("language");
      if (language == null) {
        Log.i(TAG, "Default name without language " + attributes.getValue("name"));
      }else{
        this.translationMap.put(new Locale(language), this.name);
      }
    }
    if(qname.equals("Locale")){
      String language = attributes.getValue("language");
      if (language == null) {
        Log.e(TAG, "Locale without language" + attributes.getValue("name"));
      }
      String translatedname = attributes.getValue("name");
      if (translatedname == null) {
        Log.e(TAG, "Locale without translatedname" + attributes.getValue("name"));
      }
      this.translationMap.put(new Locale(language), translatedname);
    }
    if (qname.equals("SportsEquipment")) {
      SportsEquipment eq = mDataProvider.getEquipmentByName(attributes.getValue("name"));
      if (eq == null) {
        Log.e(TAG, "The SportsEquipment: " + attributes.getValue("name") + " couldn't be found.");
      }
      this.requiredEquipment.add(eq);
    }
    if (qname.equals("Muscle")) {
      Muscle muscle = null;
      try{
        muscle = mDataProvider.getMuscleByName(attributes.getValue("name"));
      }catch(IllegalArgumentException illEx){
        Log.e(TAG, "The Muscle: " + attributes.getValue("name") + " couldn't be found. Ex: " + this.name);
      }
      if (muscle == null) {
        Log.e(TAG, "The Muscle: " + attributes.getValue("name") + " couldn't be found. Ex: " + this.name);
      }

      this.activatedMuscles.add(muscle);

      int level = ActivationLevel.MEDIUM.getLevel();
      try {
        level = Integer.parseInt(attributes.getValue("level"));
      } catch (Throwable t) {
        Log.e(TAG, "Error parsing ActivationLevel: " + attributes.getValue("level"));

        t.printStackTrace();
      }
      ActivationLevel actLevel = ActivationLevel.getByLevel(level);
      this.activationMap.put(muscle, actLevel);
    }
    if (qname.equals("Description")) {
      this.description = attributes.getValue("text");

    }
    if (qname.equals("Image")) {
      File im = new File(attributes.getValue("path"));
      this.imagePaths.add(im);
      
      String author = attributes.getValue("author");
      String licenseTypeShortName = attributes.getValue("license");
      LicenseType licenseType = mDataProvider.getLicenseTypeByName(licenseTypeShortName);
      License license = null;
      
      if(author != null){ // licenseType cannot be null
        license = new License(licenseType, author);
      }else{
        license = new License(); // has LicenseType Unknown
      }
      
      this.imageLicenseMap.put(im, license);
    }
    if (qname.equals("RelatedURL")) {
      try {
        this.relatedURL.add(new URL(attributes.getValue("url")));
      } catch (MalformedURLException e) {
        Log.e(TAG, "Error, URL: " + attributes.getValue("url") + " is not valid/is malformed \n" + e.getMessage());
      }
    }
    if (qname.equals("Tag")) {
      ExerciseTag tag = mDataProvider.getExerciseTagByName(attributes.getValue("name"));
      if (tag == null) {
        Log.e(TAG, "The Tag: " + attributes.getValue("name") + " couldn't be found.");
      }
      this.exerciseTag.add(tag);
    }
    if (qname.equals("Hint")) {
      String hint = attributes.getValue("text");

      this.hints.add(hint);
    }
    if (qname.equals("Icon")) {
      File iconpath = new File(attributes.getValue("path"));

      this.iconPath = iconpath;
    }

  }
  

  /**
   * When {@code </ExerciseType>} is reached, the parsing is finished.
   */
  @Override
  public void endElement(String uri, String localName, String qName) {
    if (qName.equals("ExerciseType")) {

      // let the builder do its job :)
      this.exType = new ExerciseType.Builder(this.name, this.mExerciseSource).translationMap(this.translationMap).activatedMuscles(this.activatedMuscles).activationMap(this.activationMap).description(this.description)
          .exerciseTags(this.exerciseTag).imagePath(this.imagePaths).neededTools(this.requiredEquipment).relatedURL(this.relatedURL)
          .imageLicenseMap(this.imageLicenseMap).hints(hints).iconPath(iconPath).build();

      this.name = null;
      
      this.translationMap = new HashMap<Locale, String>();
      this.description = null;
      this.imagePaths = new ArrayList<File>();
      this.imageLicenseMap = null;
      this.requiredEquipment = new TreeSet<SportsEquipment>();
      this.activatedMuscles = new TreeSet<Muscle>();
      this.activationMap = new HashMap<Muscle, ActivationLevel>();
      this.exerciseTag = new TreeSet<ExerciseTag>();
      this.relatedURL = new ArrayList<URL>();
      this.hints = new ArrayList<String>();
      this.iconPath = null;

    }

  }

}

Java Source Code List

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