[jira] [Work started] (CAMEL-24397) camel-tui: --record produces no cast file because the recording backend is never applied

["Adriano Machado (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-24397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on CAMEL-24397 started by Adriano Machado.
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> camel-tui: --record produces no cast file because the recording backend is never applied
> ----------------------------------------------------------------------------------------
>
>                 Key: CAMEL-24397
>                 URL: https://issues.apache.org/jira/browse/CAMEL-24397
>             Project: Camel
>          Issue Type: Bug
>            Reporter: Adriano Machado
>            Assignee: Adriano Machado
>            Priority: Major
>
> h3. Problem
> {{camel tui \-\-record=}} exits cleanly but neither replays the tape nor writes the {{.cast}} file. Nothing is logged, so the failure is indistinguishable from success.
> h3. Root cause
> {{CamelMonitor}} sets the {{tamboui.record\*}} system properties correctly, but nothing ever reads them.
> TamboUI applies recording in exactly one place, {{BackendFactory.create\(\)}}, which calls {{RecordingConfig.load\(\)}} \(installing the System.out capture and the shutdown hook that writes the cast\) and wraps the backend in {{RecordingBackend}} \(which loads the tape via {{InteractionPlayer}}\).
> {{TuiRunner.create\(\)}} only calls that factory when no explicit backend is configured:
> {code:java}
> Backend backend = config.backend\(\) \!= null ? config.backend\(\) : BackendFactory.create\(\);
> {code}
> {{TuiBackendHelper}} always supplies an explicit {{JLineBackend}}, so {{BackendFactory.create\(\)}} never runs and recording is never engaged.
> h3. Regression* 3c3f2687d9e8 \(2026\-05\-20\) added {{\-\-record}} and used a bare {{TuiRunner.create\(\)}}, so recording worked.
> * 36f9299d1322 \(2026\-05\-26\) introduced the explicit backend and silently broke it.
> The explicit backend is deliberate and must stay: with tamboui\-aesh\-backend on the classpath for {{\-\-web}}, ServiceLoader auto\-discovery can select AeshBackend for the local session, which does not shut down cleanly. The fix therefore applies the recording wrapper explicitly rather than reverting to auto\-discovery.
> h3. Also in this change
> The recording geometry was hardcoded at 200x50 \(plus fps 10 and duration 120000\). 200 columns is too wide to embed in a documentation page, so {{\-\-record\-size}}, {{\-\-record\-fps}} and {{\-\-record\-duration}} are added. Defaults are unchanged.



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