Is there a way to delete a resource from AWS S3 using the java sdk by URL?
I know you can delete a resource using a bucket name and keyName like this:
s3client.deleteObject(new DeleteObjectRequest(bucketName, keyName));
The issue is that I only have access to the resourceURL, so I would need to manipulate the string to extract the bucketname and keyname.
But if there was a way to delete by passing the url would be much cleaner.
There doesn't appear to be a way to simply pass the URL.
There's this, though:
AmazonS3URI
public AmazonS3URI(String str)
Creates a new AmazonS3URI by parsing the given string. String will be URL encoded before generating the URI.
http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/AmazonS3URI.html
You can call getKey and getBucket on it to extract the strings you need. It's still messy, but at least it looks like you don't have to write your own parser.
Related
With Retrofit, I get the url data in string data type, but I need the file name inside the url, how can I get it?
I've visited many websites but I couldn't find any results about it.
Try this in Kotlin
url.substringAfterLast("/").substringBeforeLast(".")
Hi I want to copy an existing object to same path in AWS S3 and I am getting following exception
This copy request is illegal because it is trying to copy an object to itself without changing the object's metadata, storage class, website redirect location or encryption attributes
I am using Apache camel S3, how can i resolve this. After searching, i found there is a request header which we can use to replace the existing file but it is not working
// multiple other attempts also present, I am not sure which header will work
exchange.`in`.headers[AWS2S3Constants.METADATA] = mutableMapOf(
"x-amz-metadata-directive" to "REPLACE",
"x-amz-meta-directive" to "REPLACE",
"metadata-directive" to "REPLACE",
"MetadataDirective" to "REPLACE"
)
I have logged in the request.
Sending Request: DefaultSdkHttpFullRequest(httpMethod=PUT, protocol=https, host=, port=443, encodedPath=, headers=[amz-sdk-invocation-id, User-Agent, x-amz-copy-source, x-amz-meta-directive, x-amz-meta-metadata-directive, x-amz-meta-MetadataDirective, x-amz-meta-x-amz-metadata-directive], queryParameters=[])
But it is not working. how can i copy an existing object to same path without getting this error.
I end up changing the filename by suffixing it with a timestamp. Now I am no longer getting the error.
But I think, there should be some way to copy existing objects via API, since I am able to do same via aws-cli
Did you look at the copyObject operation in the Apache Camel AWS2 S3 component? https://camel.apache.org/components/3.17.x/aws2-s3-component.html#_s3_producer_operation_examples
There is an example related to headers needed to make the Copy Object operation works.
$sourceBucket = '*** Your Source Bucket Name ***';
$sourceKeyname = '*** Your Source Object Key ***';
$targetBucket = '*** Your Target Bucket Name ***';
$s3 = new S3Client([
'version' => 'latest',
'region' => 'us-east-1'
]);
// Copy an object.
$s3->copyObject([
'Bucket' => $targetBucket,
'Key' => "{$sourceKeyname}-copy",
'CopySource' => "{$sourceBucket}/{$sourceKeyname}",
]);
In our platform, we use a certain format from paths. In the Android App, it receives those paths to load some data or do something.
I want to do all the data handling using content provider, I want to give the path and get data. A simple transaction.
When I read into content providers, the documentation and all the tutorials out there always use "content://" at the beginning. However, I want to use our own start of the path which is usually "is-://". Can something like this work?
no, this is how the system categorize the uri as content provider.
its like relacing file:// with something else.
After referring to Developer.google site
A content URI is a URI that identifies data in a provider. Content URIs include the symbolic name of the entire provider (its authority) and a name that points to a table (a path). When you call a client method to access a table in a provider, the content URI for the table is one of the arguments.
From this I believe you can't set it on your own as it includes the symbol name.
Also why do you want to change it?
Is it possible to get everything after the root domain name from an HTTP request using Java?
So if the url being requested is http://example.com/my-path then I'd like to get the value of my-path
I'm using the PlayFramework so if there's a header called "Path" or something like that it should be easier to get it with:
String path = request.headers.get("path");
But this page suggests that such a thing doesn't exist:
https://en.wikipedia.org/wiki/List_of_HTTP_header_fields
If there's a different solution to get the same result, that would also be appreciated. If it is possible it will provide a solution to this question as well:
http://stackoverflow.com/questions/28503129/redirect-example-com-to-www-example-com-in-playframework-1-2-x
To get everything after the domain, use uri:
String path = request.uri();
Or if you want to cut out query string parameters, use path:
String path = request.path();
I'm migrating my GAE app from the deprecated File API to Google Cloud Storage Client Library.
I used to persist the blobKey, but since there is partial support for it (as specified here) from now on I'll have to persist the object name.
Unfortunately the object name that comes from the GCS looks more or less like this
/gs/bucketname/819892hjd81dh19gf872g8211
as you can see, it also contains the bucket name
Here's the issue, every time I need to get the file for further processing (or to serve it in a servlet) I need to create an instance of GcsFileName(bucketName, objectName) which gives me something like
/bucketName/gs/bucketName/akahsdjahslagfasgfjkasd
which (of course) doesn't work.
so. my question is:
- how can I generate a GcsFileName form the objectName?
UPDATE
I tried using the objectName as BlobKey. But it just doesn't work :(
InputStream is = new BlobstoreInputStream(blobstoreService.createGsBlobKey("/gs/bucketName/akahsdjahslagfasgfjkasd"));
I got the usual answer
BlobstoreInputStream received an invalid blob key
How do I get the file using the ObjectName???
If you have persisted and retrieved e.g the string String objname worth e.g "/gs/bucketname/819892hjd81dh19gf872g8211", you could split it on "/" (String[] pieces = objname.split("/")) and use the pieces appropriately in the call to GcsFileName.