root / pithos-macos / PithosSharingAccountsNode.m @ f059e0e6
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// PithosAccountNode.m |
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// pithos-macos |
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// |
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// Copyright 2011 GRNET S.A. All rights reserved. |
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// |
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// Redistribution and use in source and binary forms, with or |
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// without modification, are permitted provided that the following |
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// conditions are met: |
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// |
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// 1. Redistributions of source code must retain the above |
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// copyright notice, this list of conditions and the following |
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// disclaimer. |
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// |
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// 2. Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following |
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// disclaimer in the documentation and/or other materials |
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// provided with the distribution. |
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// |
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// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
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// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// POSSIBILITY OF SUCH DAMAGE. |
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// |
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// The views and conclusions contained in the software and |
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// documentation are those of the authors and should not be |
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// interpreted as representing official policies, either expressed |
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// or implied, of GRNET S.A. |
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|
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#import "PithosSharingAccountsNode.h" |
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#import "PithosAccountNode.h" |
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#import "ASIPithosRequest.h" |
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#import "ASIPithosAccount.h" |
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#import "ASIDownloadCache.h" |
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#import "PithosUtilities.h" |
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#import "PithosActivityFacility.h" |
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|
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@implementation PithosSharingAccountsNode |
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|
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#pragma mark - |
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#pragma mark Object Lifecycle |
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|
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- (id)init { |
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if ((self = [super init])) { |
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self.sharingAccount = @""; |
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} |
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return self; |
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} |
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|
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- (void)dealloc { |
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[sharingAccountsRequest clearDelegatesAndCancel]; |
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[sharingAccountsRequest release]; |
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[sharingAccounts release]; |
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[super dealloc]; |
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} |
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|
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#pragma mark - |
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#pragma mark Properties |
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|
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- (NSString *)url { |
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if (url == nil) |
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url = [[ASIPithosRequest storageURLPrefix] copy]; |
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return url; |
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} |
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|
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- (NSArray *)children { |
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@synchronized(self) { |
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switch (freshness) { |
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case PithosNodeStateFresh: |
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break; |
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case PithosNodeStateRefreshNeeded: |
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freshness = PithosNodeStateRefreshing; |
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sharingAccountsRequest = [[ASIPithosRequest listSharingAccountsRequestWithLimit:0 |
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marker:nil] retain]; |
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sharingAccountsRequest.delegate = self; |
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sharingAccountsRequest.didFinishSelector = @selector(sharingAccountsRequestFinished:); |
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sharingAccountsRequest.didFailSelector = @selector(sharingAccountsRequestFailed:); |
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sharingAccountsRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys: |
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[NSNumber numberWithUnsignedInteger:10], @"retries", |
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nil]; |
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if (!forcedRefresh) |
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sharingAccountsRequest.downloadCache = [ASIDownloadCache sharedCache]; |
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[[PithosUtilities prepareRequest:sharingAccountsRequest priority:NSOperationQueuePriorityVeryHigh] startAsynchronous]; |
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break; |
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case PithosNodeStateRefreshing: |
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break; |
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case PithosNodeStateRefreshFinished: |
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if (newChildren) { |
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[children release]; |
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children = newChildren; |
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newChildren = nil; |
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} |
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freshness = PithosNodeStateFresh; |
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default: |
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break; |
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} |
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return children; |
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} |
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} |
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|
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- (NSString *)displayName { |
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if (displayName == nil) |
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return [NSString stringWithString:@"sharing accounts"]; |
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return [[displayName copy] autorelease]; |
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} |
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|
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#pragma mark - |
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#pragma mark ASIHTTPRequestDelegate |
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|
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- (void)sharingAccountsRequestFailed:(ASIPithosRequest *)request { |
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NSUInteger retries = [[sharingAccountsRequest.userInfo objectForKey:@"retries"] unsignedIntegerValue]; |
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if (retries > 0) { |
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ASIPithosRequest *newSharingAccountsRequest = (ASIPithosRequest *)[PithosUtilities copyRequest:sharingAccountsRequest]; |
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[(NSMutableDictionary *)(newSharingAccountsRequest.userInfo)setObject:[NSNumber numberWithUnsignedInteger:(--retries)] forKey:@"retries"]; |
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[sharingAccountsRequest release]; |
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sharingAccountsRequest = newSharingAccountsRequest; |
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[[PithosUtilities prepareRequest:sharingAccountsRequest priority:NSOperationQueuePriorityVeryHigh] startAsynchronous]; |
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} else { |
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NSString *message; |
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NSError *error = [sharingAccountsRequest error]; |
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if (error) |
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message = [NSString stringWithFormat:@"Sharing accounts listing failed: %@", error]; |
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else |
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message = [NSString stringWithFormat:@"Sharing accounts listing failed: (%d) %@", |
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sharingAccountsRequest.responseStatusCode, sharingAccountsRequest.responseStatusMessage]; |
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[[PithosActivityFacility defaultPithosActivityFacility] startAndEndActivityWithType:PithosActivityOther message:message]; |
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[newChildren release]; |
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newChildren = nil; |
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[sharingAccountsRequest release]; |
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sharingAccountsRequest = nil; |
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[sharingAccounts release]; |
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sharingAccounts = nil; |
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forcedRefresh = NO; |
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@synchronized(self) { |
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freshness = PithosNodeStateRefreshNeeded; |
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} |
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} |
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} |
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|
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- (void)sharingAccountsRequestFinished:(ASIPithosRequest *)request { |
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NSLog(@"List sharing accounts finished: %@", [sharingAccountsRequest url]); |
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NSLog(@"Cached: %d", [sharingAccountsRequest didUseCachedResponse]); |
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if (sharingAccountsRequest.responseStatusCode == 200) { |
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NSArray *someSharingAccounts = [sharingAccountsRequest sharingAccounts]; |
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if (sharingAccounts == nil) { |
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sharingAccounts = [[NSMutableArray alloc] initWithArray:someSharingAccounts]; |
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} else { |
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[sharingAccounts addObjectsFromArray:someSharingAccounts]; |
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} |
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if ([someSharingAccounts count] < 10000) { |
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if (!sharingAccountsRequest.didUseCachedResponse || ([sharingAccounts count] != [someSharingAccounts count]) || !children) { |
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// Save new children |
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NSLog(@"using newChildren"); |
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newChildren = [[NSMutableArray alloc] init]; |
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NSMutableIndexSet *keptNodes = [NSMutableIndexSet indexSet]; |
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for (ASIPithosAccount *account in sharingAccounts) { |
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if (![account.name isEqualToString:[ASIPithosRequest authUser]]) { |
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PithosAccountNode *node = [[[PithosAccountNode alloc] init] autorelease]; |
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node.parent = self; |
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node.shared = shared; |
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node.sharingAccount = account.name; |
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if (children) { |
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NSUInteger oldIndex = [children indexOfObject:node]; |
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if (oldIndex != NSNotFound) { |
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// Use the same pointer value, if possible |
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node = [children objectAtIndex:oldIndex]; |
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[keptNodes addIndex:oldIndex]; |
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} |
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} |
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[newChildren addObject:node]; |
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} |
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} |
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[[children objectsAtIndexes: |
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[[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [children count])] indexesPassingTest:^(NSUInteger idx, BOOL *stop){ |
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if ([keptNodes containsIndex:idx]) |
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return NO; |
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return YES; |
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}]] makeObjectsPerformSelector:@selector(pithosNodeWillBeRemoved)]; |
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} |
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// Else cache was used and all results were fetched during this request, so existing children can be reused |
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[sharingAccountsRequest release]; |
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sharingAccountsRequest = nil; |
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[sharingAccounts release]; |
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sharingAccounts = nil; |
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forcedRefresh = NO; |
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@synchronized(self) { |
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freshness = PithosNodeStateRefreshFinished; |
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} |
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// Notify observers that children are updated |
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[[NSNotificationCenter defaultCenter] postNotificationName:@"PithosSharingAccountsNodeChildrenUpdated" object:self]; |
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} else { |
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[sharingAccountsRequest release]; |
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// Do an additional request to fetch more objects |
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sharingAccountsRequest = [[ASIPithosRequest listSharingAccountsRequestWithLimit:0 |
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marker:[[someSharingAccounts lastObject] name]] retain]; |
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sharingAccountsRequest.delegate = self; |
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sharingAccountsRequest.didFinishSelector = @selector(sharingAccountsRequestFinished:); |
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sharingAccountsRequest.didFailSelector = @selector(sharingAccountsRequestFailed:); |
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sharingAccountsRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys: |
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[NSNumber numberWithUnsignedInteger:10], @"retries", |
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nil]; |
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if (!forcedRefresh) |
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sharingAccountsRequest.downloadCache = [ASIDownloadCache sharedCache]; |
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[[PithosUtilities prepareRequest:sharingAccountsRequest priority:NSOperationQueuePriorityVeryHigh] startAsynchronous]; |
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} |
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} else { |
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[self sharingAccountsRequestFailed:sharingAccountsRequest]; |
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} |
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} |
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|
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@end |