Hi everyone, I'm working through an idea to make a translator to go from an ics file (Google calendar) so i can import it into excel. (don't ask, it's scary to try something new around here...)

Anyways, I'm following along in the File2 example and I thought i had everything 100% but now I'm getting an arrayoutofbounds error. Any help would be greatly appreciated.


Thanks
Jon

Quote:

For the record, ICS files are not specific to Google Calendar. For example, Lightening, the calendar extension of Thunderbird, uses them too.

Your code is incorrect:
- loadStrings() returns as many lines as there are in the file. OK.
- Later you init events array with this number of lines. I think that's incorrect, it should be the number of events, so probably the number of BEGIN:VEVENT lines in the file.
- Then you use splitTokens() to split the line with the VEVENT tag. Since it splits by default on whitespace, it will split nothing! And pieces won't hold the information you expect in the Event constructor.

Without making an insightful design, I would do as follow:
- An Event constructor that just set empty string on all fields.
- A method addField() getting a line: it split() on ":", and check the first part to assign to right field the second part.
- On BEGIN:VEVENT line, create a new Event.
- On next lines, if not END:VEVENT, call addField with the line.
- On END:VEVENT, add the finished Event to an ArrayList (extensible freely, since we don't know the final number of events).

An alternative to the many fields is to use a HashMap: use the tag as key, the value as... value. Put the tag names in an array, to be used to pull items from the HashMap and to be used as CSV header. When outputting the CSV line, if get(tagName) returns null, just add an empty string.

Lot's of cleanup, and fixing. but now i have a new problem- i'm working through an example and trying to apply it. i can't get this to work.

public static List<Employee> getEmployees() {

http://lkamal.blogspot.com/2008/07/java-sorting-comparator-vs-comparable.html


thanks
Jon
Quote:

typed lists (List<Employee>) aren't supported by processing, the ide parser doesn't handle java 1.5 syntax yet.

just get rid of the type and cast the elements when you use them.

(curses.........)

OK, here is a quick hack. No sorting yet, there is a thread in this forum where we discuss advantages of comparable and comparator...

Code:

//==== Test.pde

Events events;
String[] lines;
int positionCount = 0;
String file = "events.ics";

void setup()
{
  size(200, 200);
  fill(255);
  noLoop();

  lines = loadStrings(file);
  events = new Events(lines);

  println("How many events pulled from " + file + "? " + events.GetEventNb());

  for (int i = 0; i < events.GetEventNb(); i++)
  {
    EventData e = events.GetEvent(i);
    println(i + " > " + e);
  }
}


//=== EventData.java

class EventData
{
   String dateStart;
   String timeStart;
   String dateEnd;
   String timeEnd;
   String description;
   String summary;

   EventData()
   {

   }

   void ParseLine(String line)
   {
      String[] parts = line.split(":");
      String tag = parts[0];
      if (tag.equals("DTSTART"))
      {
         String[] d = parts[1].split("T");
         dateStart = d[0];
         timeStart = d[1];
      }
      else if (tag.equals("DTEND"))
      {
         String[] d = parts[1].split("T");
         dateEnd = d[0];
         timeEnd = d[1];
      }
      else if (tag.equals("DESCRIPTION"))
      {
         description = parts[1];
      }
      else if (tag.equals("SUMMARY"))
      {
         summary = parts[1];
      }
   }

   @Override
   public String toString()
   {
      return dateStart + " " + timeStart + " to " + dateEnd + " " + timeEnd +
            " > " + description + " (" + summary + ")";
   }
}


//=== Events.java

import java.util.ArrayList;

class Events
{
   static final String endTag = "END:VEVENT";

   private ArrayList<EventData> events;
   private String icsLines;

   Events(String[] lines)
   {
      events = new ArrayList<EventData>();
      EventData event = new EventData();
      for (int i = 0; i < lines.length; i++)
      {
         if (lines[i].equals(endTag))
         {
            events.add(event);
            event = new EventData();
         }
         else
         {
            event.ParseLine(lines[i]);
         }
      }
   }

   int GetEventNb()
   {
      return events.size();
   }

   EventData GetEvent(int i)
   {
      return events.get(i);
   }
}
 

jmytyk wrote on Feb 13^th, 2009, 11:07am:

No: look at the file names I gave (there are three files, I should have been clearer), the Java 1.5 syntax is fine in .java files, so I get advantage of it...

Quote:

static: all instances of this class will share this variable. No duplication, no waste, marginally faster I think.
final: variable content cannot be changed (nor overridden), so yes, that's a constant. I should have named it END_TAG to follow a common convention.

Quote:

Exactly, only this class can use/see this variable. It shows it is "internal, private stuff", for their eyes only.