package?ilist;

import?ilist.item.BasicItem;
import?ilist.property.IconProperty;
import?ilist.property.KeyProperty;
import?ilist.property.NameProperty;
import?ilist.property.Property;
import?ilist.property.TagsProperty;

import?java.awt.image.BufferedImage;
import?java.beans.PropertyChangeEvent;
import?java.util.ArrayList;
import?java.util.Collection;
import?java.util.EventListener;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;
import?java.util.Set;
import?java.util.Map.Entry;

import?javax.swing.event.EventListenerList;


public?class?DataCenter?{
	
	private?static?DataCenter?instance?=?new?DataCenter（）;
		
	public?static?DataCenter?getInstance（）?{
		return?instance;
	}
	
	public?static?void?setInstance（DataCenter?dataCenter）?{
		instance?=?dataCenter;
	}
	
	
	private?Map>?items?=?new?HashMap>（）;
	private?Map>>?metaProperties?=?new?HashMap>>（）;
	private?List?navigationHistory?=?new?ArrayList（）;
	private?int?indexInNavigationHistory?=?0;
	
	
	public?DataCenter（）?{
		navigationHistory.add（new?ItemFilter（））;
	}
	
	
	public?List?getPropertiesKeys（）?{//TODO
		return?null;
	}
	
	public?List?getItems（）?{
		List?result?=?new?ArrayList（）;
		for?（Collection?list?:?items.values（））?{
			result.addAll（list）;
		}
		
		return?result;
	}
	
	public?List?getItems（String?key）?{
		if?（key.equals（“*“））
			return?getItems（）;
		
		return?items.get（key）;
	}
	
	public?boolean?addItem（BasicItem?item）?{
		if?（items.containsKey（item.getmetaKey（）））
			return?items.get（item.getmetaKey（））.add（item）;
		
		else?{
			List?list?=?new?ArrayList（）;
			items.put（item.getmetaKey（）?list）;
			return?list.add（item）;	
		}
	}
	
	public?boolean?removeItem（BasicItem?item）?{
		if?（items.containsKey（item.getmetaKey（）））
			return?items.get（item.getmetaKey（））.remove（item）;
		else
			return?false;		
	}
	
	public?int?getNbItems（）?{
		int?result?=?0;
		for?（Collection?list?:?items.values（））?{
			result?=?result?+?list.size（）;
		}
		
		return?result;
	}
	
	public?int?getNbItems（String?key）?{	
		if?（key.equals（“*“））
			return?getNbItems（）;
		
		return?items.get（key）.size（）;
	}
	
	public?Set?getKeys（）?{
		return?metaProperties.keySet（）;
	}
	
	public?List>?getmetaProperties（String?key）?{
		return?new?ArrayList>（metaProperties.get（key））;
	}
	
	public?boolean?addmetaProperty（String?key?Property?p）?{
		if?（metaProperties.containsKey（key））
			return?metaProperties.get（key）.add（p）;
		
		else?{
			List>?list?=?new?ArrayList>（）;
			metaProperties.put（key?list）;
			return?list.add（p）;		
		}			
	}
	
	public?boolean?removemetaProperty（String?key?Property?p）?{
		if?（metaProperties.containsK

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????704??2008-12-16?12:47??iList-sources\iList\.classpath

?????文件????????381??2008-07-22?11:31??iList-sources\iList\.project

?????文件????????331??2008-07-22?11:31??iList-sources\iList\.settings\org.eclipse.jdt.core.prefs

?????文件???????3713??2006-05-02?10:33??iList-sources\iList\bin\about-big.png

?????文件????????900??2008-08-08?09:01??iList-sources\iList\bin\about-small.png

?????文件???????2428??2006-05-03?10:42??iList-sources\iList\bin\about.png

?????文件???????3120??2006-05-05?05:00??iList-sources\iList\bin\advanced-big.png

?????文件????????671??2007-04-25?16:53??iList-sources\iList\bin\advanced-small.png

?????文件???????1720??2006-05-06?03:11??iList-sources\iList\bin\advanced.png

?????文件?????125832??2006-03-13?22:34??iList-sources\iList\bin\background.jpg

?????文件???????2631??2006-05-03?10:55??iList-sources\iList\bin\book.png

?????文件????????383??2008-08-13?17:29??iList-sources\iList\bin\close.png

?????文件???????1357??2008-08-13?17:29??iList-sources\iList\bin\close_over.png

?????文件????????274??2008-11-17?12:37??iList-sources\iList\bin\close_panel.png

?????文件????????299??2008-11-17?12:42??iList-sources\iList\bin\close_panel_over.png

?????文件????????791??2008-08-08?09:00??iList-sources\iList\bin\color-small.png

?????文件???????4263??2006-05-02?10:32??iList-sources\iList\bin\contact.png

?????文件???????2040??2006-05-02?10:32??iList-sources\iList\bin\copy-big.png

?????文件????????600??2008-08-08?09:00??iList-sources\iList\bin\copy-small.png

?????文件???????1008??2006-05-03?02:33??iList-sources\iList\bin\copy.png

?????文件???????2769??2006-05-02?10:32??iList-sources\iList\bin\cut-big.png

?????文件????????650??2006-03-12?20:51??iList-sources\iList\bin\cut-small.png

?????文件???????1015??2006-05-03?02:32??iList-sources\iList\bin\cut.png

?????文件???????3280??2006-05-03?09:57??iList-sources\iList\bin\delete-big.png

?????文件????????674??2008-08-08?09:00??iList-sources\iList\bin\delete-small.png

?????文件???????1356??2006-05-03?09:56??iList-sources\iList\bin\delete.png

?????文件???????3676??2008-08-02?19:01??iList-sources\iList\bin\dvd.png

?????文件???????4413??2006-05-02?10:32??iList-sources\iList\bin\help-big.png

?????文件????????937??2008-08-08?09:01??iList-sources\iList\bin\help-small.png

?????文件???????1591??2006-05-03?04:53??iList-sources\iList\bin\help.png

............此處省略352個文件信息