|
1 package org.sapia.regis.type;
2
3 import java.io.File  ;
4 import java.util.HashMap ;
5 import java.util.Iterator ;
6 import java.util.Map ;
7
8 import org.sapia.regis.Node;
9
10
18 public class BuiltinTypes {
19
20 private static Map types = new HashMap ();
21
22
25 public static final BuiltinType STRING_TYPE =
26 new BuiltinType(){
27 public String getName() {return "string";}
28 public Object parse(String value) {return value;}
29 public String toString(Object value) {return (String )value;}
30 public boolean isAssignable(Object value) {return value instanceof String ;}
31 public boolean isAssignable(Class clazz) {return clazz.equals(String .class);}
32 public Object getProperty(String propName, Node node) {return node.getProperty(propName).asString();}
33 };
34
35
38 public static final BuiltinType FILE_TYPE =
39 new BuiltinType(){
40 public String getName() {return "file";}
41 public Object parse(String value) {return new File (value);}
42 public String toString(Object value) {return ((File )value).getAbsolutePath();}
43 public boolean isAssignable(Object value) {return value instanceof File ;}
44 public boolean isAssignable(Class clazz) {return clazz.equals(File .class);}
45 public Object getProperty(String propName, Node node) {return new File (node.getProperty(propName).asString());}
46 };
47
48
51 public static final BuiltinType BOOLEAN_TYPE =
52 new BuiltinType(){
53 public String getName() {return "boolean";}
54 public Object parse(String value) {return new Boolean (value);}
55 public String toString(Object value) {return ((Boolean )value).toString();}
56 public boolean isAssignable(Object value) {return value instanceof Boolean ;}
57 public boolean isAssignable(Class clazz) {return clazz.equals(Boolean .class) || clazz.equals(boolean.class);}
58 public Object getProperty(String propName, Node node) {return new Boolean (node.getProperty(propName).asBoolean());}
59 };
60
61
64 public static final BuiltinType INT_TYPE =
65 new BuiltinType(){
66 public String getName() {return "int";}
67 public Object parse(String value) {return new Integer (value);}
68 public String toString(Object value) {return ((Integer )value).toString();}
69 public boolean isAssignable(Object value) {return value instanceof Integer ;}
70 public boolean isAssignable(Class clazz) {return clazz.equals(Integer .class) || clazz.equals(int.class);}
71 public Object getProperty(String propName, Node node) {return new Integer (node.getProperty(propName).asInt());}
72 };
73
74
77 public static final BuiltinType LONG_TYPE =
78 new BuiltinType(){
79 public String getName() {return "long";}
80 public Object parse(String value) {return new Long (value);}
81 public String toString(Object value) {return ((Long )value).toString();}
82 public boolean isAssignable(Object value) {return value instanceof Long ;}
83 public boolean isAssignable(Class clazz) {return clazz.equals(Long .class) || clazz.equals(long.class);}
84 public Object getProperty(String propName, Node node) {return new Long (node.getProperty(propName).asLong());}
85 };
86
87
90 public static final BuiltinType FLOAT_TYPE =
91 new BuiltinType(){
92 public String getName() {return "float";}
93 public Object parse(String value) {return new Float (value);}
94 public String toString(Object value) {return ((Float )value).toString();}
95 public boolean isAssignable(Object value) {return value instanceof Float ;}
96 public boolean isAssignable(Class clazz) {return clazz.equals(Float .class) || clazz.equals(float.class);}
97 public Object getProperty(String propName, Node node) {return new Float (node.getProperty(propName).asFloat());}
98 };
99
100
103 public static final BuiltinType DOUBLE_TYPE =
104 new BuiltinType(){
105 public String getName() {return "double";}
106 public Object parse(String value) {return new Double (value);}
107 public String toString(Object value) {return ((Double )value).toString();}
108 public boolean isAssignable(Object value) {return value instanceof Double ;}
109 public boolean isAssignable(Class clazz) {return clazz.equals(Double .class) || clazz.equals(double.class);}
110 public Object getProperty(String propName, Node node) {return new Double (node.getProperty(propName).asDouble());}
111 };
112
113 static{
114 types.put(BOOLEAN_TYPE.getName(), BOOLEAN_TYPE);
115 types.put(INT_TYPE.getName(), INT_TYPE);
116 types.put(LONG_TYPE.getName(), LONG_TYPE);
117 types.put(FLOAT_TYPE.getName(), FLOAT_TYPE);
118 types.put(DOUBLE_TYPE.getName(), DOUBLE_TYPE);
119 types.put(STRING_TYPE.getName(), STRING_TYPE);
120 }
121
122
126 public static BuiltinType getTypeFor(String name){
127 BuiltinType type = (BuiltinType)types.get(name);
128 if(type == null){
129 throw new IllegalStateException ("Invalid type name: " + name);
130 }
131 return type;
132 }
133
134
140 public static BuiltinType getTypeFor(Object value){
141 Iterator itr = types.values().iterator();
142 while(itr.hasNext()){
143 BuiltinType type = (BuiltinType)itr.next();
144 if(type.isAssignable(value)){
145 return type;
146 }
147 }
148 return null;
149 }
150
151
157 public static BuiltinType getTypeFor(Class clazz){
158 Iterator itr = types.values().iterator();
159 while(itr.hasNext()){
160 BuiltinType type = (BuiltinType)itr.next();
161 if(type.isAssignable(clazz)){
162 return type;
163 }
164 }
165 return null;
166 }
167 }
168 |
Popular Tags |
Java API By Example, From Geeks To Geeks.