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1
11 package org.eclipse.swt.tools.internal;
12
13 import java.io.IOException  ;
14 import java.io.InputStream ;
15 import java.lang.reflect.Field ;
16 import java.lang.reflect.Method ;
17 import java.util.Properties ;
18
19 public class MetaData {
20
21 Properties data;
22
23 public MetaData(String mainClass) {
24 data = new Properties ();
25 int index = 0;
26 Class clazz = getClass();
27 int length = mainClass.length();
28 while (index < length) {
29 index = mainClass.indexOf('.', index);
30 if (index == -1) index = length;
31 InputStream is = clazz.getResourceAsStream(mainClass.substring(0, index) + ".properties");
32 if (is != null) {
33 try {
34 data.load(is);
35 } catch (IOException e) {
36 } finally {
37 try {
38 is.close();
39 } catch (IOException e) {}
40 }
41
42 }
43 index++;
44 }
45 }
46
47 public MetaData(Properties data) {
48 this.data = data;
49 }
50
51 public ClassData getMetaData(Class clazz) {
52 String key = JNIGenerator.toC(clazz.getName());
53 String value = getMetaData(key, "");
54 return new ClassData(clazz, value);
55 }
56
57 public FieldData getMetaData(Field field) {
58 String className = JNIGenerator.getClassName(field.getDeclaringClass());
59 String key = className + "_" + field.getName();
60 String value = getMetaData(key, "");
61 return new FieldData(field, value);
62 }
63
64 boolean convertTo32Bit(Class [] paramTypes) {
65 boolean changed = false;
66 for (int i = 0; i < paramTypes.length; i++) {
67 Class paramType = paramTypes[i];
68 if (paramType == Long.TYPE) {
69 paramTypes[i] = Integer.TYPE;
70 changed = true;
71 }
72 if (paramType == long[].class) {
73 paramTypes[i] = int[].class;
74 changed = true;
75 }
76 }
77 return changed;
78 }
79
80 public MethodData getMetaData(Method method) {
81 String className = JNIGenerator.getClassName(method.getDeclaringClass());
82 String key = className + "_" + JNIGenerator.getFunctionName(method);
83 String value = getMetaData(key, null);
84 if (value == null) {
85 key = className + "_" + method.getName();
86 value = getMetaData(key, null);
87 }
88
91 if (value == null) {
92 Class [] paramTypes = method.getParameterTypes();
93 if (convertTo32Bit(paramTypes)) {
94 key = className + "_" + JNIGenerator.getFunctionName(method, paramTypes);
95 value = getMetaData(key, null);
96 }
97 }
98 if (value == null) value = "";
99 return new MethodData(method, value);
100 }
101
102 public ParameterData getMetaData(Method method, int parameter) {
103 String className = JNIGenerator.getClassName(method.getDeclaringClass());
104 String key = className + "_" + JNIGenerator.getFunctionName(method) + "_" + parameter;
105 String value = getMetaData(key, null);
106 if (value == null) {
107 key = className + "_" + method.getName() + "_" + parameter;
108 value = getMetaData(key, null);
109 }
110
113 if (value == null) {
114 Class [] paramTypes = method.getParameterTypes();
115 if (convertTo32Bit(paramTypes)) {
116 key = className + "_" + JNIGenerator.getFunctionName(method, paramTypes) + "_" + parameter;
117 value = getMetaData(key, null);
118 }
119 }
120 if (value == null) value = "";
121 return new ParameterData(method, parameter, value);
122 }
123
124 public String getMetaData(String key, String defaultValue) {
125 return data.getProperty(key, defaultValue);
126 }
127
128 public void setMetaData(Class clazz, ClassData value) {
129 String key = JNIGenerator.toC(clazz.getName());
130 setMetaData(key, value.toString());
131 }
132
133 public void setMetaData(Field field, FieldData value) {
134 String className = JNIGenerator.getClassName(field.getDeclaringClass());
135 String key = className + "_" + field.getName();
136 setMetaData(key, value.toString());
137 }
138
139 public void setMetaData(Method method, MethodData value) {
140 String key;
141 String className = JNIGenerator.getClassName(method.getDeclaringClass());
142 if (JNIGenerator.isNativeUnique(method)) {
143 key = className + "_" + method.getName ();
144 } else {
145 key = className + "_" + JNIGenerator.getFunctionName(method);
146 }
147 setMetaData(key, value.toString());
148 }
149
150 public void setMetaData(Method method, int arg, ParameterData value) {
151 String key;
152 String className = JNIGenerator.getClassName(method.getDeclaringClass());
153 if (JNIGenerator.isNativeUnique(method)) {
154 key = className + "_" + method.getName () + "_" + arg;
155 } else {
156 key = className + "_" + JNIGenerator.getFunctionName(method) + "_" + arg;
157 }
158 setMetaData(key, value.toString());
159 }
160
161 public void setMetaData(String key, String value) {
162 data.setProperty(key, value);
163 }
164
165 }
166 |
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