Class StreamUtils

Given a StreamState returns the timestamp when it was last anchored, or null if the state hasn't been anchored yet.

Asserts that the 'id' and 'prev' properties of the given commit properly link to the tip of the given stream state.

By the time the code gets into a StreamtypeHandler's applyCommit function the link to the state should already have been established by the stream loading and conflict resolution code, so if this check were to fail as part of a StreamtypeHandler's applyCommit function, that would indicate a programming error.

TODO: Use a process-fatal 'invariant' designed for checking against programming errors, once we have a more robust error handling framework in place.

Returns a commitId given a StreamState

Converts commit to SignedCommitContainer. The only difference is with signed commit for now

Deserializes commit

Deserializes stream cloned from over the network transfer. Returns null if given null as a param.

Checks if commit is anchor commit

Checks if commit data is anchor commit

Checks if commit is signed

Checks if commit is signed DTO ({jws: {}, linkedBlock: {}})

Checks if commit data is signed

Returns true iff 'state' describes a state object containing all the same history as 'base', possibly with additional commits on top.

Serializes commit

Serializes stream state for over the network transfer

Returns whether the given StreamState contains the given commit CID in its log

Gets StreamID from the given StreamState object.

Checks if the given object is a string that could plausibly represent a DID.