Remove old Chromoting iOS client

remoting/ios/data_store.mm

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-#import "remoting/ios/data_store.h"
-
-@interface DataStore (Private)
-- (NSString*)itemArchivePath;
-@end
-
-@implementation DataStore {
- @private
-  NSMutableArray* _allHosts;
-  NSManagedObjectContext* _context;
-  NSManagedObjectModel* _model;
-}
-
-// Create or Get a static data store
-+ (DataStore*)sharedStore {
-  static DataStore* sharedStore = nil;
-  static dispatch_once_t onceToken;
-  dispatch_once(&onceToken,
-                ^{ sharedStore = [[super allocWithZone:nil] init]; });
-
-  return sharedStore;
-}
-
-// General methods
-+ (id)allocWithZone:(NSZone*)zone {
-  return [self sharedStore];
-}
-
-// Load data store from SQLLite backing store
-- (id)init {
-  self = [super init];
-
-  if (self) {
-    // Read in ChromotingModel.xdatamodeld
-    _model = [NSManagedObjectModel mergedModelFromBundles:nil];
-
-    NSPersistentStoreCoordinator* psc = [[NSPersistentStoreCoordinator alloc]
-        initWithManagedObjectModel:_model];
-
-    NSString* path = [self itemArchivePath];
-    NSURL* storeUrl = [NSURL fileURLWithPath:path];
-
-    NSError* error = nil;
-
-    NSDictionary* tryOptions = @{
-      NSMigratePersistentStoresAutomaticallyOption : @YES,
-      NSInferMappingModelAutomaticallyOption : @YES
-    };
-    NSDictionary* makeOptions =
-        @{NSMigratePersistentStoresAutomaticallyOption : @YES};
-
-    if (![psc addPersistentStoreWithType:NSSQLiteStoreType
-                           configuration:nil
-                                     URL:storeUrl
-                                 options:tryOptions
-                                   error:&error]) {
-      // An incompatible version of the store exists, delete it and start over
-      [[NSFileManager defaultManager] removeItemAtURL:storeUrl error:nil];
-
-      [psc addPersistentStoreWithType:NSSQLiteStoreType
-                        configuration:nil
-                                  URL:storeUrl
-                              options:makeOptions
-                                error:&error];
-      [NSException raise:@"Open failed"
-                  format:@"Reason: %@", [error localizedDescription]];
-    }
-
-    // Create the managed object context
-    _context = [[NSManagedObjectContext alloc] init];
-    [_context setPersistentStoreCoordinator:psc];
-
-    // The managed object context can manage undo, but we don't need it
-    [_context setUndoManager:nil];
-
-    _allHosts = nil;
-  }
-  return self;
-}
-
-// Committing to backing store
-- (BOOL)saveChanges {
-  NSError* err = nil;
-  BOOL successful = [_context save:&err];
-  return successful;
-}
-
-// Looking up the backing store path
-- (NSString*)itemArchivePath {
-  NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(
-      NSDocumentDirectory, NSUserDomainMask, YES);
-
-  // Get one and only document directory from that list
-  NSString* documentDirectory = [documentDirectories objectAtIndex:0];
-
-  return [documentDirectory stringByAppendingPathComponent:@"store.data"];
-}
-
-// Return an array of all known hosts, if the list hasn't been loaded yet, then
-// load it now
-- (NSArray*)allHosts {
-  if (!_allHosts) {
-    NSFetchRequest* request = [[NSFetchRequest alloc] init];
-
-    NSEntityDescription* e =
-        [[_model entitiesByName] objectForKey:@"HostPreferences"];
-
-    [request setEntity:e];
-
-    NSError* error;
-    NSArray* result = [_context executeFetchRequest:request error:&error];
-    if (!result) {
-      [NSException raise:@"Fetch failed"
-                  format:@"Reason: %@", [error localizedDescription]];
-    }
-    _allHosts = [result mutableCopy];
-  }
-
-  return _allHosts;
-}
-
-// Return a HostPreferences if it already exists, otherwise create a new
-// HostPreferences to use
-- (const HostPreferences*)createHost:(NSString*)hostId {
-
-  const HostPreferences* p = [self getHostForId:hostId];
-
-  if (p == nil) {
-    p = [NSEntityDescription insertNewObjectForEntityForName:@"HostPreferences"
-                                      inManagedObjectContext:_context];
-    p.hostId = hostId;
-    [_allHosts addObject:p];
-  }
-  return p;
-}
-
-- (void)removeHost:(HostPreferences*)p {
-  [_context deleteObject:p];
-  [_allHosts removeObjectIdenticalTo:p];
-}
-
-// Search the store for any matching HostPreferences
-// return the 1st match or nil
-- (const HostPreferences*)getHostForId:(NSString*)hostId {
-  NSFetchRequest* request = [[NSFetchRequest alloc] init];
-
-  NSEntityDescription* e =
-      [[_model entitiesByName] objectForKey:@"HostPreferences"];
-  [request setEntity:e];
-
-  NSPredicate* predicate =
-      [NSPredicate predicateWithFormat:@"(hostId = %@)", hostId];
-  [request setPredicate:predicate];
-
-  NSError* error;
-  NSArray* result = [_context executeFetchRequest:request error:&error];
-  if (!result) {
-    [NSException raise:@"Fetch failed"
-                format:@"Reason: %@", [error localizedDescription]];
-  }
-
-  for (HostPreferences* curHost in result) {
-    return curHost;
-  }
-  return nil;
-}
-
-@end