[Zope-Checkins] SVN: Zope/branches/ajung-zcatalog-progress/lib/python/Products/ZCatalog/ProgressHandler.py added

[Florent Guillaume]

Just a reminder that volatile variables can disappear quite easily when
memory pressure is high, especially at partial commits time, which
ZCatalog uses.

Florent

> Added: Zope/branches/ajung-zcatalog-progress/lib/python/Products/ZCatalog/ProgressHandler.py
> ===================================================================
> +class ProgressHandler:
> +    """ A simple machinery to provide progres informations for long running
> +        ZCatalog operations like reindexing.
> +    """
> +
> +    def pg_register(self, handler=None):
> +        self._v_pg_handler = handler
> +
> +
> +    def pg_init(self, max):
> +        handler = getattr(self, '_v_pg_handler', None)
> +        if not handler: return
> +        handler.init(max)
> +
> +    def pg_finish(self):
> +        handler = getattr(self, '_v_pg_handler', None)
> +        if not handler: return
> +        handler.finish()
> +
> +    def pg_report(self, current, *args, **kw):
> +        handler = getattr(self, '_v_pg_handler', None)
> +        if not handler: return
> +        handler.report(current, *args, **kw)
> 
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-- 
Florent Guillaume, Nuxeo (Paris, France)
+33 1 40 33 79 87  http://nuxeo.com  mailto:fg at nuxeo.com