[OSM-dev] XAPI and using a home server
roland.olbricht at gmx.de
Tue Mar 1 01:05:47 GMT 2011
> I have compiled osm3s and imported the latest planet file.
Thank you for this. I'm sorry that there are still holes in the instructions.
> I think this
> was successful - no errors anyway and took about 24 hours as you suggested
> and ended with
> > max_written_role_id 4458
> > R 1298757941 r 1298757941
> This looks a bit abrupt, but I tried a small osm file and got a similar
> result, so I think this is a good sign?
Yes, it is. It looks fine so far. Well, the next version will have a more
informative final message.
> How do I use it?
> And although it lets me type things at the terminal (like your example
> queries), it does not respond - is it really listening on standard input?
Yes, it does. It waits until the input stream is finished. So, please finish
the input stream by Ctrl+D when you type at the console (works in general on
all UNIX consoles).
A more convenient way (especially when invoking it in a tool chain) might be
to pass a file with the content to it. For example
echo '<query type="node"><bbox-query n="51.0" s="50.9" w="6.9" e="7.0"/><has-
kv k="amenity" v="pub"/></query><print/>' | bin/osm3s_query --no-mime --db-
> Your instructions on the wiki say "put a query on the standard input", but
> when I start osm3s_query it prints out:
> > encoding remark: No input found from GET method. Trying to retrieve input
> > by POST method.
You can safely ignore the message if you call osm3s_query on the command line.
It's a leftover from the purpose of using it via the CGI interface of a web
> Sorry if this is obvious - I haven't tried to look at your code to see what
> it is doing!
Questions are always welcome. Even if it were obvious (it is not), it is still
a good hint for me how to improve the instructions.
> The other question is whether anyone has written a php script (or similar)
> to make this emulate xapi queries to use as a direct replacement for xapi?
AFAIK no yet. I think it would be feasible for
(gets '<bbox-query n="" s="" w="" e=""/><print/>')
/node[..] (with or without bbox)
(like the first query in the instructions, maybe without bbox)
(gets '<query type="way"><has-kv k="" v=""/></query><print/>'
or maybe '<query type="way"><has-kv k=""/></query><print/>'
(gets '<query type="relation"><has-kv k="" v=""/></query><print/>')
/* (all three without bbox)
<query type="node"><has-kv k="" v=""/></query>
<query type="way"><has-kv k="" v=""/></query>
<query type="relation"><has-kv k="" v=""/></query>
but the other queries may get more difficult.
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