src/org/json/simple/ItemList.java

   1 /*
   2  * $Id: ItemList.java,v 1.1 2006/04/15 14:10:48 platform Exp $
   3  * Created on 2006-3-24
   4  */
   5 package org.json.simple;
   6
   7 import java.util.ArrayList;
   8 import java.util.List;
   9 import java.util.StringTokenizer;
  10
  11 /**
  12  * |a:b:c| => |a|,|b|,|c|
  13  * |:| => ||,||
  14  * |a:| => |a|,||
  15  * @author FangYidong<fangyidong@yahoo.com.cn>
  16  */
  17 public class ItemList {
  18         private String sp=",";
  19         List items=new ArrayList();
  20
  21
  22         public ItemList(){}
  23
  24
  25         public ItemList(String s){
  26                 this.split(s,sp,items);
  27         }
  28
  29         public ItemList(String s,String sp){
  30                 this.sp=s;
  31                 this.split(s,sp,items);
  32         }
  33
  34         public ItemList(String s,String sp,boolean isMultiToken){
  35                 split(s,sp,items,isMultiToken);
  36         }
  37
  38         public List getItems(){
  39                 return this.items;
  40         }
  41
  42         public String[] getArray(){
  43                 return (String[])this.items.toArray();
  44         }
  45
  46         public void split(String s,String sp,List append,boolean isMultiToken){
  47                 if(s==null || sp==null)
  48                         return;
  49                 if(isMultiToken){
  50                         StringTokenizer tokens=new StringTokenizer(s,sp);
  51                         while(tokens.hasMoreTokens()){
  52                                 append.add(tokens.nextToken().trim());
  53                         }
  54                 }
  55                 else{
  56                         this.split(s,sp,append);
  57                 }
  58         }
  59
  60         public void split(String s,String sp,List append){
  61                 if(s==null || sp==null)
  62                         return;
  63                 int pos=0;
  64                 int prevPos=0;
  65                 do{
  66                         prevPos=pos;
  67                         pos=s.indexOf(sp,pos);
  68                         if(pos==-1)
  69                                 break;
  70                         append.add(s.substring(prevPos,pos).trim());
  71                         pos+=sp.length();
  72                 }while(pos!=-1);
  73                 append.add(s.substring(prevPos).trim());
  74         }
  75
  76         public void setSP(String sp){
  77                 this.sp=sp;
  78         }
  79
  80         public void add(int i,String item){
  81                 if(item==null)
  82                         return;
  83                 items.add(i,item.trim());
  84         }
  85
  86         public void add(String item){
  87                 if(item==null)
  88                         return;
  89                 items.add(item.trim());
  90         }
  91
  92         public void addAll(ItemList list){
  93                 items.addAll(list.items);
  94         }
  95
  96         public void addAll(String s){
  97                 this.split(s,sp,items);
  98         }
  99
 100         public void addAll(String s,String sp){
 101                 this.split(s,sp,items);
 102         }
 103
 104         public void addAll(String s,String sp,boolean isMultiToken){
 105                 this.split(s,sp,items,isMultiToken);
 106         }
 107
 108         /**
 109          * @param i 0-based
 110          * @return
 111          */
 112         public String get(int i){
 113                 return (String)items.get(i);
 114         }
 115
 116         public int size(){
 117                 return items.size();
 118         }
 119
 120         public String toString(){
 121                 return toString(sp);
 122         }
 123
 124         public String toString(String sp){
 125                 StringBuffer sb=new StringBuffer();
 126
 127                 for(int i=0;i<items.size();i++){
 128                         if(i==0)
 129                                 sb.append(items.get(i));
 130                         else{
 131                                 sb.append(sp);
 132                                 sb.append(items.get(i));
 133                         }
 134                 }
 135                 return sb.toString();
 136
 137         }
 138
 139         public void clear(){
 140                 items.clear();
 141         }
 142
 143         public void reset(){
 144                 sp=",";
 145                 items.clear();
 146         }
 147 }