author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 27 Apr 2010 16:30:29 +0300 | |
branch | RCL_3 |
changeset 19 | 04becd199f91 |
child 23 | 98ccebc37403 |
permissions | -rw-r--r-- |
19
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/* |
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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package com.nokia.mj.impl.file; |
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|
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import java.util.Vector; |
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import java.util.Enumeration; |
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import javax.microedition.io.file.FileSystemListener; |
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|
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import com.nokia.mj.impl.fileutils.DriveInfo; |
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import com.nokia.mj.impl.fileutils.DriveListener; |
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import com.nokia.mj.impl.fileutils.DriveUtilities; |
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import com.nokia.mj.impl.rt.support.ApplicationInfo; |
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import com.nokia.mj.impl.rt.support.ApplicationUtils; |
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import com.nokia.mj.impl.rt.support.Jvm; |
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|
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public final class FileSystemRegistryImpl implements DriveListener |
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{ |
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private static Vector iListeners = new Vector(); |
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|
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private static Object iListenerLock = new Object(); |
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|
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private static FileSystemRegistryImpl iDriveListener; |
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static |
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{ |
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try |
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{ |
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Jvm.loadSystemLibrary("javafile"); |
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} |
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catch (Exception e) |
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{ |
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FileLogger.ELog("Unable to load javafile native library"); |
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} |
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} |
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private FileSystemRegistryImpl() |
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{ |
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} |
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|
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/** |
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* Please refer JSR 75 for more details. |
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*/ |
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public static Enumeration listRoots() |
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{ |
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FileLogger.Log("--> FileSystemRegistry.listRoots()"); |
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|
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// Access Check |
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ApplicationUtils appUtils = ApplicationUtils.getInstance(); |
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FileInternalPermission perm = new FileInternalPermission("", |
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FileAccessHelper.INTENT_READ); |
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appUtils.checkPermission(perm); |
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String domain = FileSystemUtils.getProtectionDomain(); |
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|
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// Fetch the roots. |
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Vector rootVector = FileSystemUtils.listRoots(); |
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Vector retValue = new Vector(); |
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|
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for (int index = 0; index < rootVector.size(); index++) |
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{ |
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if (FileAccessHelper.accessAllowed( |
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(String) rootVector.elementAt(index), |
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FileConstants.INTENT_READ, domain, false)) |
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{ |
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retValue.addElement(rootVector.elementAt(index)); |
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} |
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} |
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|
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FileLogger.Log("<-- FileSystemRegistry.listRoots()"); |
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return retValue.elements(); |
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} |
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|
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/** |
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* Please refer JSR 75 for more details. |
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*/ |
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public static boolean addFileSystemListener(FileSystemListener aListener) |
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{ |
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FileLogger.Log("--> FileSystemregistryImpl.addFileSystemListener()"); |
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if (aListener == null) |
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{ |
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throw new NullPointerException("Argument passed was null"); |
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} |
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|
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// Access Check |
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ApplicationUtils appUtils = ApplicationUtils.getInstance(); |
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FileInternalPermission perm = new FileInternalPermission("", |
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FileAccessHelper.INTENT_READ); |
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102 |
appUtils.checkPermission(perm); |
04becd199f91
Revision: v2.1.22
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|
103 |
|
04becd199f91
Revision: v2.1.22
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|
104 |
boolean regSuccess = true; |
04becd199f91
Revision: v2.1.22
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|
105 |
synchronized (iListenerLock) |
04becd199f91
Revision: v2.1.22
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|
106 |
{ |
04becd199f91
Revision: v2.1.22
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|
107 |
iListeners.addElement(aListener); |
04becd199f91
Revision: v2.1.22
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|
108 |
// If it is the first time, register with DriveUtilities. |
04becd199f91
Revision: v2.1.22
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|
109 |
if (1 == iListeners.size()) |
04becd199f91
Revision: v2.1.22
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|
110 |
{ |
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Revision: v2.1.22
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|
111 |
iDriveListener = new FileSystemRegistryImpl(); |
04becd199f91
Revision: v2.1.22
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|
112 |
regSuccess = DriveUtilities.registerListener(iDriveListener); |
04becd199f91
Revision: v2.1.22
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|
113 |
} |
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Revision: v2.1.22
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114 |
} |
04becd199f91
Revision: v2.1.22
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|
115 |
|
04becd199f91
Revision: v2.1.22
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|
116 |
FileLogger.Log("<-- FileSystemregistryImpl.addFileSystemListener() " |
04becd199f91
Revision: v2.1.22
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|
117 |
+ " returns: " + regSuccess); |
04becd199f91
Revision: v2.1.22
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|
118 |
return regSuccess; |
04becd199f91
Revision: v2.1.22
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119 |
} |
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Revision: v2.1.22
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120 |
|
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Revision: v2.1.22
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121 |
/** |
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Revision: v2.1.22
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122 |
* Please refer JSR 75 for more details. |
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Revision: v2.1.22
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123 |
*/ |
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Revision: v2.1.22
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124 |
public static boolean removeFileSystemListener(FileSystemListener aListener) |
04becd199f91
Revision: v2.1.22
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|
125 |
{ |
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Revision: v2.1.22
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|
126 |
FileLogger.Log("--> FileSystemregistryImpl.removeFileSystemListener()"); |
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Revision: v2.1.22
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|
127 |
if (aListener == null) |
04becd199f91
Revision: v2.1.22
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|
128 |
{ |
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Revision: v2.1.22
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|
129 |
throw new NullPointerException("Argument passed was null"); |
04becd199f91
Revision: v2.1.22
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|
130 |
} |
04becd199f91
Revision: v2.1.22
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|
131 |
|
04becd199f91
Revision: v2.1.22
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|
132 |
boolean unregStatus = true; |
04becd199f91
Revision: v2.1.22
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|
133 |
synchronized (iListenerLock) |
04becd199f91
Revision: v2.1.22
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|
134 |
{ |
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Revision: v2.1.22
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|
135 |
iListeners.removeElement(aListener); |
04becd199f91
Revision: v2.1.22
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|
136 |
if (0 == iListeners.size()) |
04becd199f91
Revision: v2.1.22
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parents:
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|
137 |
{ |
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Revision: v2.1.22
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parents:
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|
138 |
unregStatus = DriveUtilities.unregisterListener(iDriveListener); |
04becd199f91
Revision: v2.1.22
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parents:
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|
139 |
iDriveListener = null; |
04becd199f91
Revision: v2.1.22
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parents:
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|
140 |
} |
04becd199f91
Revision: v2.1.22
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|
141 |
} |
04becd199f91
Revision: v2.1.22
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parents:
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|
142 |
|
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
143 |
FileLogger.Log("<-- FileSystemregistryImpl.removeFileSystemListener()" |
04becd199f91
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
144 |
+ " returns: " + unregStatus); |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
145 |
return unregStatus; |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
146 |
} |
04becd199f91
Revision: v2.1.22
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parents:
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|
147 |
|
04becd199f91
Revision: v2.1.22
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|
148 |
/** |
04becd199f91
Revision: v2.1.22
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|
149 |
* Notifies all the Listeners on root change event. |
04becd199f91
Revision: v2.1.22
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|
150 |
* |
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Revision: v2.1.22
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|
151 |
* @param aStatus |
04becd199f91
Revision: v2.1.22
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parents:
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|
152 |
* status of the root that has changed |
04becd199f91
Revision: v2.1.22
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|
153 |
* @param aRoot |
04becd199f91
Revision: v2.1.22
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parents:
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|
154 |
* root which has either been added or removed |
04becd199f91
Revision: v2.1.22
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|
155 |
*/ |
04becd199f91
Revision: v2.1.22
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|
156 |
static void notifyListeners(final int aStatus, final String aRoot) |
04becd199f91
Revision: v2.1.22
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|
157 |
{ |
04becd199f91
Revision: v2.1.22
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parents:
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|
158 |
FileLogger.Log("--> FileSystemregistryImpl.notifyListeners()"); |
04becd199f91
Revision: v2.1.22
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parents:
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|
159 |
FileSystemListener tmpObj = null; |
04becd199f91
Revision: v2.1.22
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parents:
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|
160 |
for (int index = 0; index < iListeners.size(); ++index) |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
161 |
{ |
04becd199f91
Revision: v2.1.22
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|
162 |
tmpObj = (FileSystemListener) iListeners.elementAt(index); |
04becd199f91
Revision: v2.1.22
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parents:
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|
163 |
tmpObj.rootChanged(aStatus, aRoot); |
04becd199f91
Revision: v2.1.22
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parents:
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|
164 |
} |
04becd199f91
Revision: v2.1.22
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parents:
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|
165 |
FileLogger.Log("<-- FileSystemregistryImpl.notifyListeners()"); |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
166 |
} |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
167 |
|
04becd199f91
Revision: v2.1.22
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diff
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|
168 |
/** |
04becd199f91
Revision: v2.1.22
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diff
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|
169 |
* Callback from DriveUtilities once there is change in drive status. |
04becd199f91
Revision: v2.1.22
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parents:
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|
170 |
*/ |
04becd199f91
Revision: v2.1.22
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|
171 |
public void driveChanged(final int aOperation, final DriveInfo aDriveInfo) |
04becd199f91
Revision: v2.1.22
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|
172 |
{ |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
173 |
FileLogger.Log("--> FileSystemregistryImpl.driveChanged()"); |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
174 |
if (aOperation == DriveListener.REMOVABLE_MEDIA_INSERTED) |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
175 |
{ |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
176 |
FileSystemRegistryImpl.notifyListeners( |
04becd199f91
Revision: v2.1.22
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parents:
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|
177 |
FileSystemListener.ROOT_ADDED, aDriveInfo.iRootPath |
04becd199f91
Revision: v2.1.22
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|
178 |
.replace('\\', '/')); |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
179 |
} |
04becd199f91
Revision: v2.1.22
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parents:
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|
180 |
|
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
181 |
if (aOperation == DriveListener.REMOVABLE_MEDIA_REMOVED) |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
182 |
{ |
04becd199f91
Revision: v2.1.22
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parents:
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|
183 |
FileSystemRegistryImpl.notifyListeners( |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
184 |
FileSystemListener.ROOT_REMOVED, aDriveInfo.iRootPath |
04becd199f91
Revision: v2.1.22
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parents:
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|
185 |
.replace('\\', '/')); |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
186 |
} |
04becd199f91
Revision: v2.1.22
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parents:
diff
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|
187 |
FileLogger.Log("<-- FileSystemregistryImpl.driveChanged()"); |
04becd199f91
Revision: v2.1.22
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parents:
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|
188 |
} |
04becd199f91
Revision: v2.1.22
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parents:
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|
189 |
} |