| 1 |
//---PACKAGE DECLARATION--- |
| 2 |
package uk.ac.ukc.iscream.conient.datacomponents; |
| 3 |
|
| 4 |
//---IMPORTS--- |
| 5 |
import javax.swing.JLabel; |
| 6 |
import java.awt.GridLayout; |
| 7 |
import java.util.Date; |
| 8 |
import java.text.DateFormat; |
| 9 |
|
| 10 |
/** |
| 11 |
* This is DataComponent specifically for converting |
| 12 |
* time since epoc dates into a nice format. |
| 13 |
* |
| 14 |
* As this is essentially just string data we just |
| 15 |
* extend StringDataComponent, intercepting the value |
| 16 |
* to convert it. |
| 17 |
* |
| 18 |
* @author $Author: ajm4 $ |
| 19 |
* @version $Id: DateDataComponent.java,v 1.6 2001/01/29 17:02:32 ajm4 Exp $ |
| 20 |
*/ |
| 21 |
public class DateDataComponent extends StringDataComponent { |
| 22 |
|
| 23 |
//---FINAL ATTRIBUTES--- |
| 24 |
|
| 25 |
//---STATIC METHODS--- |
| 26 |
|
| 27 |
//---CONSTRUCTORS--- |
| 28 |
|
| 29 |
/** |
| 30 |
* Creates the component with a friendly name to be |
| 31 |
* used as label, but as we're a very basic |
| 32 |
* extension of StringDataComponent, we just construct |
| 33 |
* that. |
| 34 |
* |
| 35 |
* @param name the friendly name |
| 36 |
* @param attribute the data attribute we look after |
| 37 |
*/ |
| 38 |
public DateDataComponent(String name, String attribute) { |
| 39 |
super(name, attribute); |
| 40 |
} |
| 41 |
|
| 42 |
//---PUBLIC METHODS--- |
| 43 |
|
| 44 |
//---PRIVATE METHODS--- |
| 45 |
|
| 46 |
//---ACCESSOR/MUTATOR METHODS--- |
| 47 |
|
| 48 |
/** |
| 49 |
* This takes the String value of the parameter that this component |
| 50 |
* is monitoring direct from the packet, it then performs all |
| 51 |
* approriate conversions and displays the data. |
| 52 |
* |
| 53 |
* In this case all we do is change string and pass it to our |
| 54 |
* super class for displaying. Note that we need to *1000 |
| 55 |
* as the data standard is for time in seconds, but java likes |
| 56 |
* milliseconds. |
| 57 |
* |
| 58 |
* @param value the value for this data component |
| 59 |
* @throws DataFormatException if there was a problem converting the data for display |
| 60 |
*/ |
| 61 |
public void setValue(String value) throws DataFormatException { |
| 62 |
try { |
| 63 |
if(!_cache.equals(value)) { |
| 64 |
_cache = value; |
| 65 |
value = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(new Date(Long.parseLong(value) * 1000)); |
| 66 |
super.setValue(value); |
| 67 |
} |
| 68 |
} catch (Exception e) { |
| 69 |
throw new DataFormatException(value + " is an invalid data type for " + toString()); |
| 70 |
} |
| 71 |
} |
| 72 |
|
| 73 |
//---ATTRIBUTES--- |
| 74 |
|
| 75 |
/** |
| 76 |
* Remebers what the last value was, so we |
| 77 |
* only update if we have to. |
| 78 |
*/ |
| 79 |
String _cache = ""; |
| 80 |
|
| 81 |
//---STATIC ATTRIBUTES--- |
| 82 |
|
| 83 |
} |
