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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
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@ -0,0 +1,280 @@
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/*
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* Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.util.prefs;
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import java.util.Objects;
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class MacOSXPreferences extends AbstractPreferences {
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// fixme need security checks?
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// CF preferences file name for Java nodes with short names
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// This value is also in MacOSXPreferencesFile.c
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private static final String defaultAppName = "com.apple.java.util.prefs";
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// true if this node is a child of userRoot or is userRoot
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private final boolean isUser;
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// CF's storage location for this node and its keys
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private final MacOSXPreferencesFile file;
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// absolutePath() + "/"
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private final String path;
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// User root and system root nodes
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private static volatile MacOSXPreferences userRoot;
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private static volatile MacOSXPreferences systemRoot;
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// Returns user root node, creating it if necessary.
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// Called by MacOSXPreferencesFactory
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static Preferences getUserRoot() {
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MacOSXPreferences root = userRoot;
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if (root == null) {
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synchronized (MacOSXPreferences.class) {
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root = userRoot;
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if (root == null) {
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userRoot = root = new MacOSXPreferences(true);
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}
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}
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}
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return root;
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}
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// Returns system root node, creating it if necessary.
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// Called by MacOSXPreferencesFactory
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static Preferences getSystemRoot() {
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MacOSXPreferences root = systemRoot;
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if (root == null) {
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synchronized (MacOSXPreferences.class) {
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root = systemRoot;
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if (root == null) {
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systemRoot = root = new MacOSXPreferences(false);
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}
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}
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}
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return root;
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}
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// Create a new root node. Called by getUserRoot() and getSystemRoot()
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// Synchronization is provided by the caller.
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private MacOSXPreferences(boolean newIsUser) {
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this(null, "", false, true, newIsUser);
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}
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// Create a new non-root node with the given parent.
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// Called by childSpi().
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private MacOSXPreferences(MacOSXPreferences parent, String name) {
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this(parent, name, false, false, false);
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}
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private MacOSXPreferences(MacOSXPreferences parent, String name,
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boolean isNew)
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{
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this(parent, name, isNew, false, false);
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}
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private MacOSXPreferences(MacOSXPreferences parent, String name,
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boolean isNew, boolean isRoot, boolean isUser)
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{
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super(parent, name);
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if (isRoot)
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this.isUser = isUser;
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else
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this.isUser = isUserNode();
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path = isRoot ? absolutePath() : absolutePath() + "/";
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file = cfFileForNode(this.isUser);
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if (isNew)
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newNode = isNew;
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else
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newNode = file.addNode(path);
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}
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// Create and return the MacOSXPreferencesFile for this node.
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// Does not write anything to the file.
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private MacOSXPreferencesFile cfFileForNode(boolean isUser)
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{
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String name = path;
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// /one/two/three/four/five/
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// The fourth slash is the end of the first three components.
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// If there is no fourth slash, the name has fewer than 3 components
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int pos = -1;
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for (int i = 0; i < 4; i++) {
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pos = name.indexOf('/', pos+1);
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if (pos == -1) break;
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}
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if (pos == -1) {
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// fewer than three components - use default name
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name = defaultAppName;
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} else {
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// truncate to three components, no leading or trailing '/'
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// replace '/' with '.' to make filesystem happy
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// convert to all lowercase to survive on HFS+
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name = name.substring(1, pos);
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name = name.replace('/', '.');
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name = name.toLowerCase();
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}
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return MacOSXPreferencesFile.getFile(name, isUser);
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}
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// AbstractPreferences implementation
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@Override
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protected void putSpi(String key, String value)
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{
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file.addKeyToNode(path, key, value);
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}
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// AbstractPreferences implementation
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@Override
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protected String getSpi(String key)
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{
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return file.getKeyFromNode(path, key);
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}
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// AbstractPreferences implementation
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@Override
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protected void removeSpi(String key)
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{
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Objects.requireNonNull(key, "Specified key cannot be null");
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file.removeKeyFromNode(path, key);
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}
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// AbstractPreferences implementation
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@Override
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protected void removeNodeSpi()
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throws BackingStoreException
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{
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// Disallow flush or sync between these two operations
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// (they may be manipulating two different files)
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synchronized(MacOSXPreferencesFile.class) {
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((MacOSXPreferences)parent()).removeChild(name());
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file.removeNode(path);
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}
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}
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// Erase knowledge about a child of this node. Called by removeNodeSpi.
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private void removeChild(String child)
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{
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file.removeChildFromNode(path, child);
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}
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// AbstractPreferences implementation
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@Override
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protected String[] childrenNamesSpi()
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throws BackingStoreException
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{
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String[] result = file.getChildrenForNode(path);
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if (result == null) throw new BackingStoreException("Couldn't get list of children for node '" + path + "'");
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return result;
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}
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// AbstractPreferences implementation
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@Override
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protected String[] keysSpi()
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throws BackingStoreException
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{
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String[] result = file.getKeysForNode(path);
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if (result == null) throw new BackingStoreException("Couldn't get list of keys for node '" + path + "'");
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return result;
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}
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// AbstractPreferences implementation
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@Override
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protected AbstractPreferences childSpi(String name)
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{
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// Add to parent's child list here and disallow sync
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// because parent and child might be in different files.
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synchronized(MacOSXPreferencesFile.class) {
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boolean isNew = file.addChildToNode(path, name);
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return new MacOSXPreferences(this, name, isNew);
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}
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}
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// AbstractPreferences override
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@Override
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public void flush()
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throws BackingStoreException
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{
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// Flush should *not* check for removal, unlike sync, but should
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// prevent simultaneous removal.
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synchronized(lock) {
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if (isUser) {
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if (!MacOSXPreferencesFile.flushUser()) {
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throw new BackingStoreException("Synchronization failed for node '" + path + "'");
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}
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} else {
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if (!MacOSXPreferencesFile.flushWorld()) {
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throw new BackingStoreException("Synchronization failed for node '" + path + "'");
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}
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}
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}
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}
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// AbstractPreferences implementation
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@Override
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protected void flushSpi()
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throws BackingStoreException
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{
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// nothing here - overridden flush() doesn't call this
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}
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// AbstractPreferences override
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@Override
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public void sync()
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throws BackingStoreException
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{
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synchronized(lock) {
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if (isRemoved())
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throw new IllegalStateException("Node has been removed");
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// fixme! overkill
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if (isUser) {
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if (!MacOSXPreferencesFile.syncUser()) {
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throw new BackingStoreException("Synchronization failed for node '" + path + "'");
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}
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} else {
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if (!MacOSXPreferencesFile.syncWorld()) {
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throw new BackingStoreException("Synchronization failed for node '" + path + "'");
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}
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}
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}
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}
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// AbstractPreferences implementation
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@Override
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protected void syncSpi()
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throws BackingStoreException
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{
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// nothing here - overridden sync() doesn't call this
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}
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}
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