X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=README.txt;h=27fd545cb091bc35244e75381ac4f961392d0e79;hb=83433ae599bf74603082679df28e178a2f3d0ff7;hp=c7a07e518dcf444685d015395bd37a1de1d4f69b;hpb=bf377ba45c8c1cbcf843fdecc6d5c68fda6bad18;p=yazpp-moved-to-github.git

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 YAZ++ - A C++ library for YAZ
 
-$Id: README.txt,v 1.1 1999-01-28 09:41:07 adam Exp $
+$Id: README.txt,v 1.10 2001-11-06 17:08:05 adam Exp $
  
 o Introduction
 
-YAZ is development toolkit that implements the ANSI Z39.50 protocol.
-YAZ homepage is: http://www.indexdata.dk/yaz
+YAZ++ is a C++ layer for YAZ and implements the ANSI Z39.50
+protocol for information retrieval (client - and server side).
+YAZ homepage is: http://www.indexdata.dk/yaz/
 
-YAZ++ is a C++ wrapper on top of that YAZ. It provides a relatively
-simple, high level, interface to YAZ.
+YAZ++ uses the same license as YAZ - see LICENSE file for details.
 
-o Documentatation
+o Overview
 
-Description of object model can be found in the sub directory doc, file
-index.html.
+YAZ++ builds a programmers' library libyaz++.lib and a few
+example applications:
+  yaz-my-client      basic client
+  yaz-my-server      basic server
+  yaz-proxy          not-so-basic proxy server
 
-The documentation was auto-generated from source using doc++.
+Directory structure of the YAZ++ package:
 
-o Installation
+  -- src (C++ source)
+  -- include/yaz++ (C++ headers) 
+  -- win (Windows build files)
 
-Before compilation can take place YAZ must be installed. Unpack
-yaz-<version>.tar.gz in the same directory as yaz++. 
+o Installation, Unix
 
-For Unix - make sure you have a C++ compiler available. g++ works fine.
-  $ cd unix
+Make sure you have a C - and C++ compiler available. gcc and g++ works fine.
+
+Before compilation can take place YAZ must be installed. It goes, roughly,
+like this:
+
+  $ cd yaz-<version>
   $ ./configure
   $ make
+  $ cd ..
+
+Then, build YAZ++:
+
+  $ cd yaz++-<version>
+  $ ./configure
+  $ make
+
+o Installation, Windows
+
+YAZ++ for WIN32 should run on Windows 95/98/2K and Windows NT 4.0.
+Yaz++ was built using Microsoft Visual C++ 6.0. Other compilers
+should work but makefile/project files will have to be created for
+those compilers.
+
+  Workspace yazxx.dsw includes the projects
+    yazxx.dsp       -   builds yazxx.dll
+    yazclient.dsp   -   builds yazmyclient.exe
+    yazserver.dsp   -   builds yazmyserver.exe
+    yazproxy.dsp    -   builds yazproxy.exe
+
+o About the proxy..
+
+For the proxy the actual target is determined in by the OtherInfo
+part of the InitRequest. We've defined an OID for this which we call
+PROXY. OID is 1.2.840.10003.10.1000.81.1. 
+
+  OtherInformation   ::= [201] IMPLICIT SEQUENCE OF SEQUENCE{
+    category            [1]   IMPLICIT InfoCategory OPTIONAL, 
+    information        CHOICE{
+      characterInfo        [2]  IMPLICIT InternationalString,
+      binaryInfo        [3]  IMPLICIT OCTET STRING,
+      externallyDefinedInfo    [4]  IMPLICIT EXTERNAL,
+      oid          [5]  IMPLICIT OBJECT IDENTIFIER}}
+--
+  InfoCategory ::= SEQUENCE{
+      categoryTypeId  [1]   IMPLICIT OBJECT IDENTIFIER OPTIONAL,
+      categoryValue  [2]   IMPLICIT INTEGER}
+
+The InfoCategory is present with categoryTypeId set to the PROXY OID
+and categoryValue set to 0. The information in OtherInformation uses
+characterInfo to represent the target using the form target[:port][/db].
+
+For the client that doesn't set the PROXY OtherInformation, a default
+target can be specified using option -t for proxy.
+
+Example:
+  We start the proxy so that it listens on port 9000. The default
+  target is Bell Labs Library unless it is specified by a client in
+  the InitRequest.
+
+     $ ./yaz-proxy -t z3950.bell-labs.com/books @:9000
+
+  The client is started and talks to the proxy without specifying
+  a target. Hence this client will talk to the Bell Labs server.
+     $ ./yaz-client localhost:9000
 
-For Windows. The software was build using Microsoft Visual C++ 5.0 and
-6.0. Other compilers should work but the makefile will have to be
-modified.
-  > cd win
-  > nmake      (Visual C++ makefile not yet created)
+  The client is started and it specifies the actual target itself.
+     $ ./yaz-client -p localhost:9000 bagel.indexdata.dk/gils
 
+  For ZAP the equivalent would be
+     proxy=localhost:9000
+     target=bagel.indexdata.dk/gils
+  Simple, huh!