/**
* doDbUpgrade is triggered by someone calling the static method "processPackageReplacedBroadcast"
*
* @param cps - a String array containing all the ContentProvider authorities to upgrade
* @return
*/
protected boolean doDbUpgrade(final Intent intent) {
boolean success = false;
try {
// First set the global lock on the Base ContentProvider
LogUtils.i(LogUtils.TAG, "Package has been replaced, perform database upgrades...");
// PIMContentProviderBase.setMaintenanceLock(cpLock, true);
// Get the list of content authorities from the Intent extras
Bundle extras = intent.getExtras();
String[] cps = extras.getStringArray(CP_LIST);
if (cps == null) {
// Nothing to upgrade?
return success;
}
// Write out our current task information to a preference file
writeActionState(DB_UPGRADE_ACTION, cps);
// Lock all providers, then upgrade, then unlock
lockProviders(cps);
success = upgradeProviders(cps);
unlockProviders(cps);
} catch (Exception e) {
LogUtils.e(LogUtils.TAG, "Database upgrade exception: %s", e.getMessage());
} finally {
// Unlock the Base Content Provider
// PIMContentProviderBase.setMaintenanceLock(cpLock, false);
}
LogUtils.i(LogUtils.TAG, "Package has been replaced, perform database upgrades...done");
return success;
}
/**
* readActionState - read in state from preference file
*
* @return current action from the preference file
*/
protected int readActionState() {
int currentAction = UNKNOWN_ACTION;
try {
SharedPreferences prefs =
getApplicationContext().getSharedPreferences(CPMAINT_STATE_PREFERENCE, MODE_PRIVATE);
if (prefs != null) {
currentAction = prefs.getInt(CURRENT_TASK, UNKNOWN_ACTION);
}
} catch (Exception e) {
LogUtils.e(LogUtils.TAG, "Unable to get CP Maint action: %s", e.getMessage());
}
return currentAction;
}
private ConversationMessage getMessageFromCursor(MessageCursor cursor) {
// ignore cursors that are still loading results
if (cursor == null || !cursor.isLoaded()) {
LogUtils.i(LOG_TAG, "CONV RENDER: existing cursor is null, rendering from scratch");
return null;
}
if (mActivity == null || mActivity.isFinishing()) {
// Activity is finishing, just bail.
return null;
}
if (!cursor.moveToFirst()) {
LogUtils.e(LOG_TAG, "unable to open message cursor");
return null;
}
return cursor.getMessage();
}
/**
* writeActionState - write out some state to a preference file
*
* @param action - integer
* @return N/A
*/
protected void writeActionState(int action, String[] cps) {
try {
SharedPreferences prefs =
getApplicationContext().getSharedPreferences(CPMAINT_STATE_PREFERENCE, MODE_PRIVATE);
SharedPreferences.Editor editPrefs = prefs.edit();
editPrefs.putInt(CURRENT_TASK, action);
if (cps != null) {
// Save the list of ContentProvider authority strings to the shared pref
Set<String> mySet = new HashSet<String>(Arrays.asList(cps));
editPrefs.putStringSet(CP_LIST, mySet);
}
editPrefs.commit();
} catch (Exception e) {
LogUtils.e(LogUtils.TAG, "Unable to save CP Maint action: %s", e.getMessage());
}
}
/**
* getActionState - write out some state to a preference file
*
* @return current action from the preference file
*/
protected String[] getCPListFromSharedPrefs() {
try {
SharedPreferences prefs =
getApplicationContext().getSharedPreferences(CPMAINT_STATE_PREFERENCE, MODE_PRIVATE);
if (prefs != null) {
Set<String> cps = prefs.getStringSet(CP_LIST, null);
if (cps != null) {
// Convert the set to an array of String objects
return cps.toArray(new String[cps.size()]);
}
}
} catch (Exception e) {
LogUtils.e(
LogUtils.TAG, "Cannot get ContentProvider list from preferences: %s", e.getMessage());
}
return null;
}