bucket

Android: How to query a list of bucket name

£可爱£侵袭症+ 提交于 2019-11-30 08:56:10
I want to retrieve only the name of the bucket (Albums). E.g. Camera, Download etc but not a list of Camera, Download etc from all the the photos so how do I retrieve one row each for each bucket name? What I mean like in Gallery Application, you have albums first e.g. Camera. When you clicked on it, it show all the photos of the camera. I can query the photos in a Camera Roll with the Where clause of the query. But what if I wanted only the name of each of the albums' name and not the photos, is it possible to query that? If I query all the photos and take only one row per set of photos, then

Hashcode bucket distribution in java

↘锁芯ラ 提交于 2019-11-30 04:55:15
问题 Suppose I need to store 1000 objects in Hashset, is it better that I have 1000 buckets containing each object( by generating unique value for hashcode for each object) or have 10 buckets roughly containing 100 objects? 1 advantage of having unique bucket is that I can save execution cycle on calling equals() method? Why is it important to have set number of buckets and distribute the objects amoung them as evenly as possible? What should be the ideal object to bucket ratio? 回答1: Why is it

How can I make a S3 bucket public (the amazon example policy doesn't work)?

淺唱寂寞╮ 提交于 2019-11-30 03:45:42
Amazon provides an example for Granting Permission to an Anonymous User as follows (see Example Cases for Amazon S3 Bucket Policies ): { "Version": "2008-10-17", "Statement": [ { "Sid": "AddPerm", "Effect": "Allow", "Principal": { "AWS": "*" }, "Action": "s3:GetObject", "Resource": "arn:aws:s3:::bucket/*" } ] } Within my policy I've changed "bucket" in ""arn:aws:s3:::bucket/" to "my-bucket". However, once I try to access an image within a folder of that bucket, I get the following Access denied error: This XML file does not appear to have any style information associated with it. The document

AWS S3 Bucket policy editor access denied

人盡茶涼 提交于 2019-11-30 03:18:20
I am logged in with the root account trying to give public access to a bucket inline with the instructions for setting up a static s3 web site. However I get an access denied message when running the bucket policy. There is no more detail on the message. This could be due to recent changes in S3. You need to assign Public Access to the bucket, follow the below steps: In the permissions tab click on public Access settings Click "edit" Make sure "block new public bucket policies option" is deselected. Click "Save" Go back to bucket policy and try again. "Manage public bucket policies for this

amazon S3 bucket policy - restricting access by referer BUT not restricting if urls are generated via query string authentication

大憨熊 提交于 2019-11-30 00:30:12
I have the following bucket policy set on my bucket: { "Version": "2008-10-17", "Id": "My access policy", "Statement": [ { "Sid": "Allow only requests from our site", "Effect": "Allow", "Principal": { "AWS": "*"}, "Action": "s3:GetObject", "Resource": "arn:aws:s3:::my_bucket/*", "Condition": { "StringLike": { "aws:Referer": [" http://mydomain.com/*"," http://www.mydomain.com/*"] } } }, { "Sid": "Dont allow direct acces to files when no referer is present", "Effect": "Deny", "Principal": {"AWS": "*" }, "Action": "s3:GetObject", "Resource": "arn:aws:s3:::my_bucket/*", "Condition": { "Null": {

Android P: UsageStatsManager getAppStandbyBucket

笑着哭i 提交于 2019-11-29 18:10:05
I want to display the current bucket of my application with a device under Android P beta. Therefore, I try to use the UsageStatsManager class like this : @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (Build.VERSION.SDK_INT >= 28) { UsageStatsManager usageStatsManager = (UsageStatsManager) getSystemService(USAGE_STATS_SERVICE); if (usageStatsManager != null) { Log.d(TAG, "getAppStandbyBucket():" + usageStatsManager.getAppStandbyBucket()); } } } My Manifest possesses the permission android.permission

List files on S3

我只是一个虾纸丫 提交于 2019-11-29 04:47:59
I'm getting frustrated by not finding any good explanation on how to list all files in a S3 bucket. I have this bucket with about 20 images on. All I want to do is to list them. Someone says "just use the S3.list-method". But without any special library there is no S3.list-method. I have a S3.get-method, which I dont get to work. Arggh, would appreciate if someone told me how to simply get an list of all files(filenames) from an S3 bucket. val S3files = S3.get(bucketName: String, path: Option[String], prefix: Option[String], delimiter: Option[String]) returns an Future[Response] I dont know

What exactly is bucket in hashmap?

孤者浪人 提交于 2019-11-29 01:46:57
问题 Recently, in an interview I was asked, what exactly is a bucket in hashmap? Whether it is an array or a arraylist or what? I got confused. I know hashmaps are backed by arrays. So can I say that bucket is an array with a capacity of 16 in the start storing hashcodes and to which linked lists have their start pointer ? I know how a hashmap internally works, just wanted to know what exactly is a bucket in terms of data structures. 回答1: No, a bucket is each element in the array you are referring

amazon S3 bucket policy - restricting access by referer BUT not restricting if urls are generated via query string authentication

限于喜欢 提交于 2019-11-28 21:27:54
问题 I have the following bucket policy set on my bucket: { "Version": "2008-10-17", "Id": "My access policy", "Statement": [ { "Sid": "Allow only requests from our site", "Effect": "Allow", "Principal": { "AWS": "*"}, "Action": "s3:GetObject", "Resource": "arn:aws:s3:::my_bucket/*", "Condition": { "StringLike": { "aws:Referer": [" http://mydomain.com/*"," http://www.mydomain.com/*"] } } }, { "Sid": "Dont allow direct acces to files when no referer is present", "Effect": "Deny", "Principal": {"AWS

Amazon S3 is not serving files correctly

与世无争的帅哥 提交于 2019-11-28 07:29:35
I made this site for my friend and I uploaded it to an Amazon S3 bucket ( http://ballard26.s3.amazonaws.com/index.html ) and when I go to that site the page doesn't load correctly and I have no idea why. Any ideas? For example, the stylesheet.css doesn't load correctly. If you go to http://ballard26.s3.amazonaws.com/stylesheet.css , it downloads the file instead of loading it as CSS. Check the mime types (HTTP content type header) on the files you uploaded. S3 does not always set them correctly. You may need to set them on the upload API call. Some upload libraries will do this for you. If the