AWS SDK for IOS from v1 to v2 about the "S3objectsummary" - ios

Question

Here is a function of progressbar. In the sdk v1 I can use "S3Objectsummary" to know the summary of the the file, but in the sdk v2 i can not found the "S3Objectsummary".
Which one is the similar one in the v2? If any one can show an example that will be great.
Also, i have the same question with
S3GetObjectRequest/S3GetObjectResponse/S3PutObjectRequest/AmazonClientException
Code is in the sdk ios v1:
-(AmazonS3Client *)s3{
[self validateCredentials];
return s3;}
-(void)validateCredentials{
NSLog(#"validating credentials.");
if (s3 == nil) {
[self clearCredentials];
s3 = [[AmazonS3Client alloc] initWithAccessKey:ACCESS_KEY_ID withSecretKey:SECRET_KEY];
}
}
-(void)setProgressBar{
[delegate setProgressStatus:progPercent];
}
-(void)downloadPlists{
#try {
NSArray *Plists = [[self s3] listObjectsInBucket:#"~~~~"];
float numfile = 1;
float totalfiles = [Plists count];
for (S3ObjectSummary *file in Plists) {
float percent = numfile/totalfiles;
progPercent = [NSNumber numberWithFloat:percent];
[self performSelectorOnMainThread:#selector(setProgressBar) withObject:progPercent waitUntilDone:YES];
numfile++;
NSString *key = [file key];
NSLog(#"key: %#", key);
if ([key rangeOfString:#".plist"].location != NSNotFound) {
NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *plistFilePath = [NSString stringWithFormat:#"%#/Plists/%#",docDir, key];
NSLog(#"plistFilePath: %#", plistFilePath);
S3GetObjectRequest *plist = [[S3GetObjectRequest alloc] initWithKey:key withBucket:#"~~~~~"];
S3GetObjectResponse *getObjectResponse = [[self s3] getObject:plist];
NSData *data2 = [NSData dataWithData: getObjectResponse.body];
NSString *courseFilePath = [plistFilePath substringToIndex:[plistFilePath rangeOfString:#"/" options:NSBackwardsSearch].location];
bool testDirectoryCreated = [[NSFileManager defaultManager]createDirectoryAtPath: courseFilePath
withIntermediateDirectories: YES
attributes: nil
error: NULL];
if (!testDirectoryCreated)
NSLog(#"error creating test directory.");
if (![data2 writeToFile:plistFilePath atomically:YES])
NSLog(#"error writing to path.");
}
}
}
#catch (NSException *exception) {
UIAlertView *failureAlert = [[UIAlertView alloc] initWithTitle:#"Oops!" message:[NSString stringWithFormat: #"There was an error performing this operation. Please try again later. Error: %#", exception] delegate:nil cancelButtonTitle:#"Okay" otherButtonTitles: nil];
[failureAlert show];
}
}
I try to do the same thing in v2 in the code as follow, is the code right?
-(void)downloadPlists
{
AWSS3 *s3 = [AWSS3 defaultS3];
AWSS3ListObjectsRequest *listObjectReq=[AWSS3ListObjectsRequest new];
listObjectReq.bucket=#"PLists";
[[[s3 listObjects:listObjectReq] continueWithBlock:^id(BFTask *task) {
if(task.error){
NSLog(#"the request failed. error %#",task.error);
}
if(task.result){
AWSS3ListObjectsOutput *listObjectsOutput=task.result;
NSArray *Plists = task.result; //Is the result of task in listObjectOutput a NSArray?
float numfile = 1;
float totalfiles = [Plists count];
for(AWSS3Object *file in listObjectsOutput.contents){
float percent = numfile/totalfiles;
progPercent = [NSNumber numberWithFloat:percent];
[self performSelectorOnMainThread:#selector(setProgressBar) withObject:progPercent waitUntilDone:YES];
numfile++;
NSString *key = [file key];
NSLog(#"key: %#", key);
if ([key rangeOfString:#".plist"].location != NSNotFound) {
NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *plistFilePath = [NSString stringWithFormat:#"%#/Plists/%#",docDir, key];
NSLog(#"plistFilePath: %#", plistFilePath);
AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager];
AWSS3TransferManagerDownloadRequest *downloadRequest = [AWSS3TransferManagerDownloadRequest new];
downloadRequest.bucket = #"PLists";
downloadRequest.key = key;
//downloadRequest.downloadingFileURL=[NSURL fileURLWithPath: #"???"]; I'm not sure the path. In sdk V1 there is no URL ?
[[transferManager download: downloadRequest] continueWithBlock:^id(BFTask *task) {
if (task.error) {
UIAlertView *failureAlert = [[UIAlertView alloc] initWithTitle:#"Oops!"
message:[NSString stringWithFormat: #"There was an error performing this operation. Please try again later. Error: %#", task.error]
delegate:nil
cancelButtonTitle:#"Okay"
otherButtonTitles: nil];
[failureAlert show];
}
if (task.result) {
AWSS3TransferManagerDownloadOutput *downloadOutput = task.result;
NSData *data2 = [NSData dataWithData: downloadOutput.body];
NSString *courseFilePath = [plistFilePath substringToIndex:[plistFilePath rangeOfString:#"/" options:NSBackwardsSearch].location];
bool testDirectoryCreated = [[NSFileManager defaultManager]createDirectoryAtPath: courseFilePath
withIntermediateDirectories: YES
attributes: nil
error: NULL];
if (!testDirectoryCreated)
NSLog(#"error creating test directory.");
if (![data2 writeToFile:plistFilePath atomically:YES])
NSLog(#"error writing to path.");
}
return nil;
}];
}
}
return nil;
}
return nil;
}] waitUntilFinished]; //In the integration test still use the "waitUntilFinisher".But in the "Working with BFTask" said the continueWithBolck won't execute until the previous asychronous call has already finished exceuting?
}

Answer 1

AWSS3Object in v2 is equivalent to S3ObjectSummary in v1.
You are not invoking - listObjects:, so your v2 code snippet does not work. You should take a look at the integration test as an example. Note that you should avoid calling - waitUntilFinished in your production app. See Working with BFTask for further details.