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CHANGELOG.md

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Changelog

Unreleased - TBD

6.3.0 - 2024-11-08

Added

  • Fixed B2StorageClient.deleteAllFilesInBucket so it uses fileVersions instead of fileNames.
  • Added maxEventsPerBatch field to B2WebhookConfiguration.

Changed

  • Validate idle connections after 2 seconds of inactivity

6.2.1 - 2024-07-16

Added

  • Added eventId field to B2EventNotificationEvent.

6.2.0 - 2024-04-15

Added

  • Added support to specify B2Json union types using annotations. Annotation support for union types is required because Java records do not support inheritance. Example usage: 
    @B2Json.union(typeField = "type")
@B2Json.unionSubtypes({
        @B2Json.unionSubtypes.type(name = "email", clazz = Email.class),
        @B2Json.unionSubtypes.type(name = "sms", clazz = Sms.class)
})
sealed interface Message permits Email, Sms {
    String subject();
}

@B2Json.type
private record Email(@B2Json.required String subject, @B2Json.required String email) implements Message {
}

@B2Json.type
private record Sms(@B2Json.required String subject, @B2Json.required String phoneNumber) implements Message {
}
  • Added @B2Json.type annotation that can be used with Java records. Using @B2Json.type allows for the implicit Java constructor of Java records to not require the @B2Json.constructor annotation. Example usage: 
    @B2Json.type
record Point(@B2Json.required int x, @B2Json.required int y) { }
  • Added support for B2 Event Notifications
  • Added B2Json fromJson methods that take a java.io.Reader as input for JSON
  • Added B2StorageClient.storePartsForLargeFile
  • Added support for daysFromStartingToCancelingUnfinishedLargeFiles to B2LifecycleRule
  • Added the serializedName annotation to rename the serialized Json member name
  • Added support for AtomicLongArray in B2Json
  • Added support for custom upload timestamps

Changed

  • Optimized B2DateTimeUtil.formatFguidDateTime
  • Reduced memory allocation for small input when deserializing byte[] to JSON
  • Reduced lock contention in B2Clock
  • Updated B2Json fromJson methods to utilize a BufferedReader when deserializing JSON for performance improvement
  • Reduced lock contention in B2AccountAuthorizationCache
  • Reduced lock contention in B2Json
  • Updated internal python for building to python3

Fixed

  • Fixed union types to ignore extra and discarded fields when deserializing JSON to Java objects

6.1.1 - 2022-11-10

Added

  • Return a subtype of B2Exception on errors when the response body does not conform to B2ErrorStructure. Returning a B2Exception subtype enables the B2Retryer to retry exceptions that may succeed on retry.

Fixed

  • Fixed B2ListFilesIterableBase assuming a response with 0 results was the end. It now looks for nextFileName being null to indicate the end.

6.1.0 - 2022-09-19

Added

  • Added support for custom upload timestamps
  • Added support for Java 8's -parameters option so constructor parameters do not need to be reiterated in B2Json.constructor#params
  • Added fileLockEnabled to B2UpdateBucketRequest to support enabling file lock on existing buckets

6.0.0 - 2022-06-03

Changed [Incompatible]

  • Updated includeExistingFiles to be required on B2ReplicationRule

Added

  • Updated to version 1.15 of commons-codec.

[5.1.0] - 2022-05-06

Added

  • Added s3ApiUrl to B2AccountAuthorization.
  • Updated to version 4.5.13 of org.apache.httpcomponents:httpclient
  • Updated to version 4.13.2 of junit:junit
  • Added Replication Configuration to Create Bucket and Update Bucket API requests/responses

5.0.0 - 2021-05-10

Changed [Incompatible]

  • Disabled automatic decompression of compressed content in HTTP client download library
  • Added updateFileRetention and updateLegalHold to B2StorageClient
  • Added storeLargeFileFromLocalContentAsync to B2StorageClient to support asynchronous large file uploads

Added

  • Added Server-Side Encryption (SSE) support to relevant API requests/responses
  • Added File Lock support to relevant API requests/responses
  • Set gradle targetCompatibility to 1.8
  • Added support for java.util.SortedMap interface
  • Support more than 64 fields per object

Fixed

  • Fixed regular expression that had an unescaped '.'

4.0.0 - 2020-05-11

Added

  • Removed the deprecated okhttp client
  • Added 'readBuckets' and 'listAllBucketNames' application key capability names
  • Added the "Expect: 100-continue" header to upload file/part requests
  • Validates file info header name characters against RFC 7230 (https://tools.ietf.org/html/rfc7230#section-3.2)
  • B2Json:
  • Add general generics support to B2Json
  • Allow generic types for top-level objects from select entry points
  • Add support for parameterized classes that contain generic arrays
  • Add support for CharSequence
  • Add an omitNull parameter to @B2Json.optional
  • Disabled URI normalization in Apache HttpClient
  • Extended B2FileVersion and B2Part to include contentMd5
  • Added support to override additional download headers
  • Added optional 'options' parameter in the B2Bucket and B2ApplicationKey constructor
  • Added b2_copy_file support
  • Added progress reporting in the B2LargeFileStorer
  • Updated to version 4.5.9 of org.apache.httpcomponents:httpclient
  • B2Bucket and B2ApplicationKey both have an options parameter in the constructor. These are optional.
  • B2StorageClient.DownloadByName supports downloading files with looser naming requirements, e.g. names containing double slashes (//).

Fixed

  • See the closed issues for a complete list

3.1.0 - 2019-05-16

Added

  • Added @B2Json.sensitive annotation to redact fields when B2Json is used with the new redactSensitive option set to true.
  • Added B2ContentSource.createContentSourceWithRangeOrNull() which is used by the large file uploader to give the content source the opportunity to make a more efficient content source for a range of the file. this is really useful if the content isn't coming from memory or a local file because the default implementation reads and discards data to get to the desired range. Added sample UploadLargeFileFromUrl and UrlContentSource.
  • Added support for using okhttp3 as the HTTP client instead of Apache's HttpClient. there are limitations with this implementation for uploading files that are about 2GB or larger. See README.md for details.
  • Added B2StorageClientFactory interface for creating B2StorageClients without having to select a particular implementation at build time. The static createDefaultFactory() method can be used to create a B2StorageClient using either of the two official web client implementations, whichever is in the classpath at runtime. The sample programs use this now so they can be used with either web client implementation.

Fixed

  • Don't use default character set in B2Json; explicitly use UTF8.

3.0.0 - 2019-05-01

Added

  • Renaming the application key terminology to the new convention
  • Being able to call b2FromJsonOrThrow() to check if you can parse a JSON String into a given object

2.0.0 - 2018-10-17

Changed [Incompatible]

  • The SDK now uses version 2 of the B2 APIs, which deals with restricted application keys differently
  • B2Json type handler interface takes B2JsonOptions as a parameter, and not an int bitmask

Added

  • B2Json support for versioned structures

Fixed

  • Remembering account ID after authorizing with application key
  • B2Json now serialized unions correctly

1.4.0 - 2018-05-23

Added

  • Add BigInteger support to B2Json.

Fixed

  • Percent decoding of file name returned from getFileInfoByName()

1.3.0 - 2018-05-04

Added

  • Add deleteAllFilesInBucket() and getFileInfoByName(). (thanks, valenpo!)
  • Add support for upcoming ApplicationKeys apis. (thanks, valenpo!)
  • Expose startLargeFile() and finishLargeFile()
  • Add support for "union types" in B2Json.
  • Add default codes for exception classes so B2Exception.create() can be used for HEAD.

Fixed

  • Explicitly set user-agent on HttpClient to keep HttpClient from doing a bunch of unneeded work.
  • Improve use of clocks in unit tests to make the tests less order dependent.
  • Make search for "file info" headers in B2Headers check header names case-insensitively!

1.2.0 - 2017-11-30

Added

  • Adds support setting CorsRules on buckets.
  • B2StorageClient now exposes the following methods. You should read the comments about why you probably want to let the SDK handle things for you instead of calling them. ;)
    • getAccountAuthorization()
    • getUploadUrl()
    • getUploadPartUrl()

Fixed

  • Speeds up writing json (by doing custom UTF8 encoding instead of using the generic java versions). (and a bug fix which changed the behavior of B2Json.toJson(...outputStream) to not close the stream.)
  • While uploading a large file, the caller provides a ExecutorService. if that service rejects a task we submit, we throw a B2LocalException instead of letting the RejectedExecutionException (a RuntimeException) percolate up.

1.1.1 - 2017-11-01

Added

  • B2FileVersion now has string constants for "actions"
  • Download request objects now have an optional 'b2ContentDisposition' field.
  • B2StorageClient now has getDownloadByIdUrl() and getDownloadByNameUrl()
  • B2 command-line program now has an option to get_download_authorization
  • List buckets now has an optional 'bucketTypes' field.

Fixed

  • Percent encode file names when downloading by name
  • Large file uploader now uses RetryPolicySupplier in all cases, instead of just part of the code.

1.0.0 - 2017-09-08

Added

  • We have been using the SDK in production for a while at Backblaze and we're feature complete (for now), so we're going 1.0!

    We hope you enjoy it.

    Please let us know how it works for you. :)

    thanks, ab

0.0.6 - 2017-08-17

Added

  • These changes were driven by switching our internal b2-sdk uses to use the http client from the sdk instead of a different, custom interface.