Android Open Source - CampusUB1 Time Extractor

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2013 CampusUB1 Development Team
 *// w ww  . ja  v a 2s.c  o  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dev.campus.util;

import android.annotation.SuppressLint;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.dev.campus.event.Event;

/**
 * Utility class for analyzing and extracting information
 * about timing of events 
 * @author CampusUB1 Development Team
 *
 */
@SuppressLint("SimpleDateFormat")
public class TimeExtractor {

  public static List<String[]> parseTime(String text){

    ArrayList<String[]> dates = new ArrayList<String[]>();
    String hours = "[0-2]?[0-9]";
    String minutes = "[0-5][0-9]";
    String range = "de " + hours + "[hH:](" + minutes + ")?" 
        + " [a] " + hours + "[hH:](" + minutes + ")?";
    String time = hours + "[hH:](" + minutes + ")?";

    Pattern p = Pattern.compile(range);
    Pattern p2 = Pattern.compile(time);
    Matcher m = p.matcher(text);
    Matcher m2 = p2.matcher(text);

    if (m.find()) {
      String s = m.group();
      if (s != null) {
        s = s.toLowerCase().replace("de ", "");
        String[] tabDate = s.split("  ");
        for (int i = 0; i < tabDate.length; i++) {
          if (tabDate[i].contains("h")) {
            String s2[] = tabDate[i].split("h");
            dates.add(s2);
            
          } else {
            dates.add(tabDate[0].split(":"));
          }
        }
      }
    } else if (m2.find()) {
      String s = m2.group();
      if (s != null) {
        s = s.toLowerCase();
        // Split the time into a table to help with the management
        if (s.contains("h")) {
          String[] ss = s.split("h");
          dates.add(ss);
        } else {
          dates.add(s.split(":"));
        }
      }
    }
    return dates;
  }

  public static Date createDate(String date, String format) throws ParseException {
    SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.ENGLISH);
    return sdf.parse(date);
  }

  public static void getCorrectDate(String date, Event event) throws ParseException {
    List<String[]> time = parseTime(event.getDetails());
    String format = "EEE, d MMM yyyy HH:mm:ss Z";
    Date start = createDate(date, format);
    Date end = createDate(date, format);

    if(time.size() > 0) {
      if(time.get(0).length > 1) { // Means we have parsed minutes
        start.setMinutes(Integer.parseInt(time.get(0)[1]));
      } else {
        // No minutes parsed, assume the time is at the start of the specified hour
        start.setMinutes(0);
      }
      start.setHours(Integer.parseInt(time.get(0)[0]));
      if (time.size() > 1){
        if(time.get(1).length > 1) { // Means we have parsed minutes
          end.setMinutes(Integer.parseInt(time.get(1)[1]));
        } else {
          // No minutes parsed, assume the time is at the start of the specified hour
          end.setMinutes(0);
        }
        end.setHours(Integer.parseInt(time.get(1)[0]));
      } else {
        end.setMinutes(start.getMinutes());
        end.setHours(start.getHours());
      }
    } else {
      /* no time parsed in text, set time to 00:00 to avoid displaying
       * the time at which the article was posted
       */
      start.setMinutes(0);
      start.setHours(0);
      end.setMinutes(0);
      end.setHours(0);
    }
    event.setStartDate(start);
    event.setEndDate(end);
  }

  /**
   * Extracts time from strings following the format HH:MM-HH:MM
   * @param date string formatted as HH:MM-HH:MM
   * @param start reference to the start date of the corresponding event
   * @param end reference to the end date of the corresponding event
   */
  public static void getDateLabri(String date, Date start, Date end) {
    String[] tabDate = date.split("-");
    String[] tabDate2 = tabDate[0].split(":");
    String[] tabDate3 = tabDate[1].split(":");

    start.setHours(Integer.parseInt(tabDate2[0]));
    start.setMinutes(Integer.parseInt(tabDate2[1]));
    end.setHours(Integer.parseInt(tabDate3[0]));
    end.setMinutes(Integer.parseInt(tabDate3[1]));
  }


}

Java Source Code List

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