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1
36 package jnlp.sample.JreInstaller;
37
38
39
43 public class WinRegistry
44 {
45 public static final int HKEY_CLASSES_ROOT = 0x80000000;
46 public static final int HKEY_CURRENT_USER = 0x80000001;
47 public static final int HKEY_LOCAL_MACHINE = 0x80000002;
48 public static final int HKEY_USERS = 0x80000003;
49 public static final int HKEY_PERFORMANCE_DATA = 0x80000004;
50 public static final int HKEY_CURRENT_CONFIG = 0x80000005;
51 public static final int HKEY_DYN_DATA = 0x80000006;
52
53 static final int KEY_QUERY_VALUE = 0x1;
54 static final int KEY_SET_VALUE = 0x2;
55 static final int KEY_CREATE_SUB_KEY = 0x4;
56 static final int KEY_ENUMERATE_SUB_KEYS = 0x8;
57 static final int KEY_NOTIFY = 0x10;
58 static final int KEY_CREATE_LINK = 0x20;
59 static final int KEY_READ = 0x20019;
60 static final int KEY_WRITE = 0x20006;
61
62 static final int KEY_EXECUTE = 0x20019;
63 static final int KEY_ALL_ACCESS = 0xf003f;
64 static final int REG_OPTION_RESERVED = 0x0;
65 static final int REG_OPTION_NON_VOLATILE = 0x0;
66 static final int REG_OPTION_VOLATILE = 0x1;
67 static final int REG_OPTION_CREATE_LINK = 0x2;
68 static final int REG_OPTION_BACKUP_RESTORE = 0x4;
69 static final int REG_OPTION_OPEN_LINK = 0x8;
70 static final int REG_LEGAL_OPTION = 0xf;
71 static final int REG_CREATED_NEW_KEY = 0x1;
72 static final int REG_OPENED_EXISTING_KEY = 0x2;
73 static final int REG_WHOLE_HIVE_VOLATILE = 0x1;
74 static final int REG_REFRESH_HIVE = 0x2;
75 static final int REG_NO_LAZY_FLUSH = 0x4;
76 static final int REG_NOTIFY_CHANGE_NAME = 0x1;
77 static final int REG_NOTIFY_CHANGE_ATTRIBUTES = 0x2;
78 static final int REG_NOTIFY_CHANGE_LAST_SET = 0x4;
79 static final int REG_NOTIFY_CHANGE_SECURITY = 0x8;
80 static final int REG_LEGAL_CHANGE_FILTER = 0xf;
81 static final int REG_NONE = 0x0;
82 static final int REG_SZ = 0x1;
83 static final int REG_EXPAND_SZ = 0x2;
84 static final int REG_BINARY = 0x3;
85 static final int REG_DWORD = 0x4;
86 static final int REG_DWORD_LITTLE_ENDIAN = 0x4;
87 static final int REG_DWORD_BIG_ENDIAN = 0x5;
88 static final int REG_LINK = 0x6;
89 static final int REG_MULTI_SZ = 0x7;
90 static final int REG_RESOURCE_LIST = 0x8;
91 static final int REG_FULL_RESOURCE_DESCRIPTOR = 0x9;
92 static final int REG_RESOURCE_REQUIREMENTS_LIST = 0xa;
93
94
102 static class KeyValue {
103 private final int type;
104 private final byte[] data;
105 private Object  value = null;
106
107 KeyValue(int type, byte[] data) {
108 this.type = type;
109 this.data = data;
110 }
111
112 public int getType() {
113 return type;
114 }
115
116 public byte[] getData() {
117 return data;
118 }
119
120 public Object getValue() {
121 switch (type) {
122 case REG_SZ:
123 if (data.length - 1 < 0) return null;
126 return new String (data, 0, data.length - 1);
127
128 case REG_DWORD:
129 {
130 int n = 0;
131 for(int i = 0; (i < 4) && (i < data.length); i++) {
132 n += data[i] << (i * 8);
133 }
134 return new Integer (n);
135 }
136
137 default:
138 return getData();
139 }
140 }
141 }
142
143 static native void initIDs();
144 static native int sysOpenKey(int hKey, String subKey, int sam);
145 static native int sysCloseKey(int hKey);
146 static native KeyValue sysQueryKey(int hKey, String name);
147 static native int sysCreateKey(int hKey, String name, int sam);
148 static native boolean sysSetStringValue(int hKey, String name,
149 String value);
150 static native boolean sysDeleteKey(int hKey, String subKey);
151 static native boolean sysReboot();
152
153
156 public static native String getWindowsDirectory();
157
158 static {
159 initIDs();
161 }
162
163
164 public static Object get(int hKey, String path, String name) {
165 int key = sysOpenKey(hKey, path, KEY_READ);
166 if (key != 0) {
167 KeyValue kv = sysQueryKey(key, name);
168 sysCloseKey(key);
169 if (kv != null) {
170 return kv.getValue();
171 }
172 }
173 return null;
174 }
175
176 public static String getString(int hKey, String path, String name) {
177 Object rv = get(hKey, path, name);
178 return (rv instanceof String ) ? (String )rv : null;
179 }
180
181 public static Integer getInteger(int hKey, String path, String name) {
182 Object rv = get(hKey, path, name);
183 if (rv instanceof Integer ) {
184 return (Integer )rv;
185 } else if (rv instanceof byte[]){
186 byte[] b = (byte[])rv;
187 if (b.length == 4 && b[1] == 0 && b[2] == 0 && b[3] == 0) {
188 return new Integer (b[0]);
189 } else {
190 return null;
191 }
192 }
193 return null;
194 }
195
196 public static boolean setStringValue(int hKey, String path, String name,
197 String value) {
198 boolean retValue = false;
199 int key = sysCreateKey(hKey, path, KEY_WRITE);
200 if (key != 0) {
201 retValue = sysSetStringValue(key, name, value);
202 sysCloseKey(key);
203 }
204 return retValue;
205 }
206
207
211 public static boolean doesSubKeyExist(int hKey, String path) {
212 int key = sysOpenKey(hKey, path, KEY_READ);
213 if (key != 0) {
214 sysCloseKey(key);
215 return true;
216 }
217 return false;
218 }
219
220 public static boolean deleteKey(int hKey, String path) {
221 return sysDeleteKey(hKey, path);
222 }
223
224 public static boolean doReboot() {
225 return sysReboot();
226 }
227 }
228 |
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