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1 package org.sapia.regis.impl;
2
3 import java.io.Serializable  ;
4 import java.util.LinkedList ;
5 import java.util.List ;
6 import java.util.StringTokenizer ;
7
8 import org.sapia.regis.Property;
9 import org.sapia.regis.type.BuiltinType;
10 import org.sapia.regis.type.BuiltinTypes;
11
12 public class PropertyImpl implements Property, Serializable {
13
14 static final long serialVersionUID = 1L;
15
16 private static final String ON = "on";
17 private static final String TRUE = "true";
18 private static final String YES = "yes";
19
20 protected String _name, _value;
21
22 public PropertyImpl(String name, String value){
23 _name = name;
24 _value = value;
25 }
26
27 public String getKey(){
28 return _name;
29 }
30
31 public boolean asBoolean() {
32 checkNull();
33 return _value.equalsIgnoreCase(ON) ||
34 _value.equalsIgnoreCase(TRUE) ||
35 _value.equalsIgnoreCase(YES);
36 }
37
38 public double asDouble() {
39 checkNull();
40 return Double.parseDouble(_value);
41 }
42
43 public float asFloat() {
44 checkNull();
45 return Float.parseFloat(_value);
46 }
47
48 public int asInt() {
49 checkNull();
50 return Integer.parseInt(_value);
51 }
52
53 public long asLong() {
54 checkNull();
55 return Long.parseLong(_value);
56 }
57
58 public String asString() {
59 checkNull();
60 return _value;
61 }
62
63 public List asList() {
64 return asList(BuiltinTypes.STRING_TYPE);
65 }
66
67 public List asList(BuiltinType type) {
68 checkNull();
69 List toReturn = new LinkedList ();
70 StringTokenizer tokenizer = new StringTokenizer (_value);
71 while(tokenizer.hasMoreTokens()){
72 toReturn.add(type.parse(tokenizer.nextToken()));
73 }
74 return toReturn;
75 }
76
77 public String getValue() {
78 return _value;
79 }
80
81 public boolean isNull() {
82 return _value == null;
83 }
84
85 protected void checkNull(){
86 if(_value == null){
87 throw new IllegalStateException ("Could not convert; value is null for property: " + _name);
88 }
89 }
90
91 public String toString(){
92 return new StringBuffer ("[")
93 .append("key=").append(_name).append(",")
94 .append("value=").append(_value).append("]")
95 .toString();
96 }
97
98 }
99 |
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