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simple2zoom - generic Swiss Army Server for proxying between IR standards


"simple2zoom" [ "-c" configFile ] [ "--" YAZ-options ] [ listener-address ... ]


"simple2zoom" provides a generic gateway between the Z39.50 and SRU/SRW Information
Retrieval protocols. Because it relies on the "Net::Z3950::SimpleServer" and "ZOOM"
modules for the server and client funcationality respectively, because both of these
modules are based on the YAZ toolkit, and because YAZ transparently handles all three
standard IR protocols (ANDI/NISO Z39.50, SRU and SRW), it can function as a gateway from
any and to any of these protocols. However, its principle purpose is as a Z39.50 server
that proxies requests through to a backend by acting as an SRU client.

The following command-line options govern how the gateway functions:

-c configFile
Specifies that the named configFile should be used to configure the functionality of
the gateway: if this option is not specified, then the file "client.xml" is used. The
format of the configuration file is described separately in
"Net::Z3950::Simple2ZOOM::Config", and a sample configuration file, "test.xml", is
supplied in the "etc" directory of the distribution.

-- Indicates the end of "simple2zoom"-specific options. This is required if YAZ options
are to be specified, so that "simple2zoom" doesn't try to interpret them itself.

Command-line arguments subsequent to the "--" option are interpreted by the YAZ
backend server as described at http://www.indexdata.dk/yaz/doc/server.invocation.tkl

These options provide the means to control many aspects of the gateway's functioning:
for example, whether the server forks a new process for each client or runs a single
process using "select()"; how (if at all) to interpret incoming SRU requests; whether
and how to log protocol packets for debugging.

One or more YAZ-style listener addresses may be specified, and the server will accept
connections on those addresses: for example, @:9998, "unix:/tmp/somesocket" or
"ssl:myhost.com:210". If no explicit listener addresses are provided, the server
listens on port 9999.

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