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1
21
22 package org.armedbear.j;
23
24 import java.util.HashMap  ;
25 import java.util.Iterator ;
26 import java.util.Set ;
27
28 public final class PropertyList
29 {
30 private HashMap map;
31
32 public PropertyList()
33 {
34 }
35
36 public Object getProperty(Property property)
37 {
38 if (map != null)
39 return map.get(property);
40 return null;
41 }
42
43 public void setProperty(Property property, Object value)
44 {
45 if (map == null)
46 map = new HashMap ();
47 map.put(property, value);
48 }
49
50 public void setProperty(Property property, boolean value)
51 {
52 setProperty(property, value ? Boolean.TRUE : Boolean.FALSE);
53 }
54
55 public void setProperty(Property property, int value)
56 {
57 setProperty(property, new Integer (value));
58 }
59
60 public boolean setPropertyFromString(Property property, String value)
61 {
62 if (property.isBooleanProperty()) {
63 if (value.equals("true") || value.equals("1")) {
64 setProperty(property, true);
65 return true;
66 }
67 if (value.equals("false") || value.equals("0")) {
68 setProperty(property, false);
69 return true;
70 }
71 return false; }
73 if (property.isIntegerProperty()) {
74 try {
75 setProperty(property, Integer.parseInt(value));
76 return true;
77 }
78 catch (NumberFormatException e) {
79 return false; }
81 }
82 setProperty(property, value);
83 return true;
84 }
85
86 public boolean removeProperty(Property property)
87 {
88 return map.remove(property) != null;
89 }
90
91 public boolean getBooleanProperty(Property property)
92 {
93 Object value = getProperty(property);
94 if (!(value instanceof Boolean ))
95 value = property.getDefaultValue();
96 return ((Boolean )value).booleanValue();
97 }
98
99 public int getIntegerProperty(Property property)
100 {
101 Object value = getProperty(property);
102 if (!(value instanceof Integer ))
103 value = property.getDefaultValue();
104 return ((Integer )value).intValue();
105 }
106
107 public String getStringProperty(Property property)
108 {
109 Object value = getProperty(property);
110 if (!(value instanceof String ))
111 value = property.getDefaultValue();
112 return (String ) value;
113 }
114
115 public Iterator keyIterator()
116 {
117 if (map != null)
118 return map.keySet().iterator();
119 return null;
120 }
121
122 public Set keySet()
123 {
124 if (map != null)
125 return map.keySet();
126 return null;
127 }
128
129 public int size()
130 {
131 return map != null ? map.size() : 0;
132 }
133
134 public void putAll(PropertyList other)
135 {
136 if (other.map != null && other.map.size() > 0) {
137 if (map == null)
138 map = new HashMap ();
139 map.putAll(other.map);
140 }
141 }
142 }
143 |
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