18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.util.prefs;
27
28 import java.util.Objects;
29
30 class MacOSXPreferences extends AbstractPreferences {
31 // fixme need security checks?
32
33 // CF preferences file name for Java nodes with short names
34 // This value is also in MacOSXPreferencesFile.c
35 private static final String defaultAppName = "com.apple.java.util.prefs";
36
37 // true if this node is a child of userRoot or is userRoot
38 private boolean isUser;
39
40 // true if this node is userRoot or systemRoot
41 private boolean isRoot;
42
43 // CF's storage location for this node and its keys
44 private MacOSXPreferencesFile file;
45
46 // absolutePath() + "/"
47 private String path;
48
49 // User root and system root nodes
50 private static MacOSXPreferences userRoot = null;
51 private static MacOSXPreferences systemRoot = null;
52
53
54 // Returns user root node, creating it if necessary.
55 // Called by MacOSXPreferencesFactory
56 static synchronized Preferences getUserRoot() {
57 if (userRoot == null) {
58 userRoot = new MacOSXPreferences(true);
59 }
60 return userRoot;
61 }
62
63
64 // Returns system root node, creating it if necessary.
65 // Called by MacOSXPreferencesFactory
66 static synchronized Preferences getSystemRoot() {
67 if (systemRoot == null) {
68 systemRoot = new MacOSXPreferences(false);
69 }
70 return systemRoot;
71 }
72
73
74 // Create a new root node. Called by getUserRoot() and getSystemRoot()
75 // Synchronization is provided by the caller.
76 private MacOSXPreferences(boolean newIsUser)
77 {
78 super(null, "");
79 isUser = newIsUser;
80 isRoot = true;
81
82 initFields();
83 }
84
85
86 // Create a new non-root node with the given parent.
87 // Called by childSpi().
88 private MacOSXPreferences(MacOSXPreferences parent, String name)
89 {
90 super(parent, name);
91 isUser = isUserNode();
92 isRoot = false;
93
94 initFields();
95 }
96
97
98 private void initFields()
99 {
100 path = isRoot ? absolutePath() : absolutePath() + "/";
101 file = cfFileForNode(isUser);
102 newNode = file.addNode(path);
103 }
104
105
106 // Create and return the MacOSXPreferencesFile for this node.
107 // Does not write anything to the file.
108 private MacOSXPreferencesFile cfFileForNode(boolean isUser)
109 {
110 String name = path;
111 // /one/two/three/four/five/
112 // The fourth slash is the end of the first three components.
113 // If there is no fourth slash, the name has fewer than 3 components
114 int componentCount = 0;
115 int pos = -1;
116 for (int i = 0; i < 4; i++) {
117 pos = name.indexOf('/', pos+1);
118 if (pos == -1) break;
119 }
120
121 if (pos == -1) {
122 // fewer than three components - use default name
123 name = defaultAppName;
124 } else {
125 // truncate to three components, no leading or trailing '/'
187 return result;
188 }
189
190 // AbstractPreferences implementation
191 @Override
192 protected String[] keysSpi()
193 throws BackingStoreException
194 {
195 String[] result = file.getKeysForNode(path);
196 if (result == null) throw new BackingStoreException("Couldn't get list of keys for node '" + path + "'");
197 return result;
198 }
199
200 // AbstractPreferences implementation
201 @Override
202 protected AbstractPreferences childSpi(String name)
203 {
204 // Add to parent's child list here and disallow sync
205 // because parent and child might be in different files.
206 synchronized(MacOSXPreferencesFile.class) {
207 file.addChildToNode(path, name);
208 return new MacOSXPreferences(this, name);
209 }
210 }
211
212 // AbstractPreferences override
213 @Override
214 public void flush()
215 throws BackingStoreException
216 {
217 // Flush should *not* check for removal, unlike sync, but should
218 // prevent simultaneous removal.
219 synchronized(lock) {
220 // fixme! overkill
221 if (!MacOSXPreferencesFile.flushWorld()) {
222 throw new BackingStoreException("Synchronization failed for node '" + path + "'");
223 }
224 }
225 }
226
227 // AbstractPreferences implementation
228 @Override
|
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.util.prefs;
27
28 import java.util.Objects;
29
30 class MacOSXPreferences extends AbstractPreferences {
31 // fixme need security checks?
32
33 // CF preferences file name for Java nodes with short names
34 // This value is also in MacOSXPreferencesFile.c
35 private static final String defaultAppName = "com.apple.java.util.prefs";
36
37 // true if this node is a child of userRoot or is userRoot
38 private final boolean isUser;
39
40 // true if this node is userRoot or systemRoot
41 private final boolean isRoot;
42
43 // CF's storage location for this node and its keys
44 private final MacOSXPreferencesFile file;
45
46 // absolutePath() + "/"
47 private final String path;
48
49 // User root and system root nodes
50 private static MacOSXPreferences userRoot = null;
51 private static MacOSXPreferences systemRoot = null;
52
53
54 // Returns user root node, creating it if necessary.
55 // Called by MacOSXPreferencesFactory
56 static synchronized Preferences getUserRoot() {
57 if (userRoot == null) {
58 userRoot = new MacOSXPreferences(true);
59 }
60 return userRoot;
61 }
62
63
64 // Returns system root node, creating it if necessary.
65 // Called by MacOSXPreferencesFactory
66 static synchronized Preferences getSystemRoot() {
67 if (systemRoot == null) {
68 systemRoot = new MacOSXPreferences(false);
69 }
70 return systemRoot;
71 }
72
73
74 // Create a new root node. Called by getUserRoot() and getSystemRoot()
75 // Synchronization is provided by the caller.
76 private MacOSXPreferences(boolean newIsUser) {
77 this(null, "", false, true, newIsUser);
78 }
79
80
81 // Create a new non-root node with the given parent.
82 // Called by childSpi().
83 private MacOSXPreferences(MacOSXPreferences parent, String name) {
84 this(parent, name, false, false, false);
85 }
86
87 private MacOSXPreferences(MacOSXPreferences parent, String name,
88 boolean isNew)
89 {
90 this(parent, name, isNew, false, false);
91 }
92
93 private MacOSXPreferences(MacOSXPreferences parent, String name,
94 boolean isNew, boolean isRoot, boolean isUser)
95 {
96 super(parent, name);
97 this.isRoot = isRoot;
98 if (isRoot)
99 this.isUser = isUser;
100 else
101 this.isUser = isUserNode();
102 path = isRoot ? absolutePath() : absolutePath() + "/";
103 file = cfFileForNode(isUser);
104 if (isNew)
105 newNode = isNew;
106 else
107 newNode = file.addNode(path);
108 }
109
110 // Create and return the MacOSXPreferencesFile for this node.
111 // Does not write anything to the file.
112 private MacOSXPreferencesFile cfFileForNode(boolean isUser)
113 {
114 String name = path;
115 // /one/two/three/four/five/
116 // The fourth slash is the end of the first three components.
117 // If there is no fourth slash, the name has fewer than 3 components
118 int componentCount = 0;
119 int pos = -1;
120 for (int i = 0; i < 4; i++) {
121 pos = name.indexOf('/', pos+1);
122 if (pos == -1) break;
123 }
124
125 if (pos == -1) {
126 // fewer than three components - use default name
127 name = defaultAppName;
128 } else {
129 // truncate to three components, no leading or trailing '/'
191 return result;
192 }
193
194 // AbstractPreferences implementation
195 @Override
196 protected String[] keysSpi()
197 throws BackingStoreException
198 {
199 String[] result = file.getKeysForNode(path);
200 if (result == null) throw new BackingStoreException("Couldn't get list of keys for node '" + path + "'");
201 return result;
202 }
203
204 // AbstractPreferences implementation
205 @Override
206 protected AbstractPreferences childSpi(String name)
207 {
208 // Add to parent's child list here and disallow sync
209 // because parent and child might be in different files.
210 synchronized(MacOSXPreferencesFile.class) {
211 boolean isNew = file.addChildToNode(path, name);
212 return new MacOSXPreferences(this, name, isNew);
213 }
214 }
215
216 // AbstractPreferences override
217 @Override
218 public void flush()
219 throws BackingStoreException
220 {
221 // Flush should *not* check for removal, unlike sync, but should
222 // prevent simultaneous removal.
223 synchronized(lock) {
224 // fixme! overkill
225 if (!MacOSXPreferencesFile.flushWorld()) {
226 throw new BackingStoreException("Synchronization failed for node '" + path + "'");
227 }
228 }
229 }
230
231 // AbstractPreferences implementation
232 @Override
|