feat(redrive): DLQ redrive tooling — safe replay (ADR-0026)#3
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Java mirror of babelqueue-go Redrive: Redrive.redrive(transport, dlq, opts) drains a DLQ and re-publishes each message (reset: strip dead_letter, attempts->0, preserve job/trace_id/data/meta) to its dead_letter.original_queue or opts.toQueue. Options all()/toQueue/max/dryRun/select. The codec-only core has no transport, so it works over a minimal Transport seam the caller implements (like the otel Sender). Drains-then-processes; acks only after a successful re-publish; restores undecodable bodies (a null-job envelope) and on publish failure. No new dependency; envelope frozen. Replay-Bypass header documented as phase two.
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The Java mirror of
babelqueue-goRedrive(ADR-0026) — the operator tool for replaying off the dead-letter queue.What
Redrive.redrive(transport, dlq, opts)drains a DLQ and re-publishes each message to itsdead_letter.original_queue(oropts.toQueue), reset for reprocessing: thedead_letterblock stripped andattemptsreset to 0, whilejob,trace_id,dataandmetaare preserved verbatim. Options viaRedrive.Options.all().toQueue(..).max(..).dryRun(..).select(..).The codec-only Java core has no transport, so
redriveworks over a minimalRedrive.Transportseam (pop/publish/ack) the caller implements over their broker — the same shape as theotelmodule'sSender. Drains-then-processes; acks a DLQ message only after a successful re-publish; restores undecodable bodies (a null-jobenvelope) and on publish failure. No new dependency; envelope frozen (GR-1).Tests / gate
8 tests via an in-memory transport (to-source + reset/trace preserved, sandbox, dry-run, select, max, publish-failure-restores, undecodable restored, no-dead_letter fallback).
mvn verify: 67 tests pass, JaCoCo ≥0.90 met, SpotBugs 0.Follow-up
The Replay-Bypass guard (a
bq-replay-bypasstransport header surfaced to handlers so a replay can skip external side-effects) is a documented phase two.🤖 Generated with Claude Code