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+ "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"
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-<!-- $Id: pazpar2_protocol.xml,v 1.4 2007-01-19 19:08:00 quinn Exp $ -->
<refentry id="pazpar2_protocol">
<refentryinfo>
<productname>Pazpar2</productname>
<productnumber>&version;</productnumber>
+ <info><orgname>Index Data</orgname></info>
</refentryinfo>
<refmeta>
<refentrytitle>Pazpar2 protocol</refentrytitle>
<manvolnum>7</manvolnum>
+ <refmiscinfo class="manual">Conventions and miscellaneous</refmiscinfo>
</refmeta>
<refnamediv>
request is forwarded to the HTTP server specified in the configuration
using the proxy setting.
This way, a regular webserver can host the user interface (itself dynamic
- or static HTML), and AJAX-style calls can be used from JS (or any other client-based
- scripting environment) to interact with the search logic in pazpar2.
+ or static HTML), and Ajax-style calls can be used from JS (or any other client-based
+ scripting environment) to interact with the search logic in Pazpar2.
</para>
<para>
Each command is described in sub sections to follow.
<refsect2 id="command-init"><title>init</title>
<para>
Initializes a session.
- Returns session ID to be used in subsequent requests.
+ Returns session ID to be used in subsequent requests. If
+ a server ID is given in the Pazpar2 server section, then a
+ period (.) and the server ID is appended to the session ID.
</para>
<para>
Example:
<session>2044502273</session>
</init>
]]></screen>
+ <para>
+ The init command may take a number of setting parameters, similar to
+ the 'settings' command described below. These settings are immediately
+ applied to the new session. Other parameters for init are:
+ <variablelist>
+ <varlistentry>
+ <term>clear</term>
+ <listitem>
+ <para>
+ If this is defined and the value is non-zero, the session will
+ not use the predefined databases in the configuration; only those
+ specified in the settings parameters (per session databases).
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>service</term>
+ <listitem>
+ <para>
+ If this is defined it specifies a service ID. Makes the session use
+ the service with this ID. If this is setting is omitted, the
+ session will use the unnamed service in the Pazpar2 configuration.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </para>
</refsect2>
<refsect2 id="command-ping"><title>ping</title>
]]></screen>
</para>
</refsect2>
+ <refsect2 id="command-settings">
+ <title>settings</title>
+ <para>
+ The settings command applies session-specific settings to one or more
+ databases. A typical function of this is to enable access to
+ restricted resources for registered users, or to set a user- or
+ library-specific username/password to use against a target. Each
+ setting parameter has the form name[target]=value, where name is the
+ name of the setting (e.g. pz:authentication), target is a target ID,
+ or possibly a wildcard, and value is the desired value for the
+ setting.
+ </para>
+
+ <para>
+ Because the settings command manipulates potentially sensitive
+ information, it is possible to configure Pazpar2 to only allow access
+ to this command from a trusted site -- usually from server-side
+ scripting, which in turn is responsible for authenticating the user,
+ and possibly determining which resources he has access to, etc.
+ </para>
+
+ <note>
+ <para>
+ As a shortcut, it is also possible to override settings directly in
+ the init command.
+ </para>
+ </note>
+
+ <para>
+ Example:
+ <screen><![CDATA[
+ search.pz?command=settings&session=2044502273&pz:allow[search.com:210/db1]=1
+ ]]></screen>
+ Response:
+ <screen><![CDATA[
+<settings>
+ <status>OK</status>
+</settings>
+]]></screen>
+ </para>
+
+ </refsect2>
<refsect2 id="command-search"><title>search</title>
<para>
Launches a search, parameters:
-
+
<variablelist>
<varlistentry>
<term>session</term>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>filter</term>
+ <listitem>
+ <para>
+ Limits the search to a given set of targets specified by the
+ filter. The filter consists a comma separated list of
+ setting+operator+args pairs. The setting is a Pazpar2 setting
+ (such as <literal>pz:id</literal>).
+ The operator is either = (string match)
+ or ~ (substring match). The args is a list of values separated
+ by | (or , one of the values). The idea is that only targets
+ with a setting matching one of the values given will be included
+ in the search.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>startrecs</term>
+ <listitem>
+ <para>
+ Specifies the first record to retrieve from each target.
+ The first record in a result set for a target is numbered 0, next
+ record is numbered 2. By default maxrecs is 0.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>maxrecs</term>
+ <listitem>
+ <para>
+ Specifies the maximum number of records to retrieve from each
+ target. The default value is 100. This setting has same meaning
+ as per-target setting pz:maxrecs . If pz:maxrecs is set, it takes
+ precedence over argument maxrecs.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</para>
</varlistentry>
<varlistentry>
- <term>sort</term>
- <listitem>
- <para>
- Specifies sort criteria. The argument is a comma-separated list
- (no whitespace allowed) of sort fields, with the highest-priority
- field first. A sort field may be followed by a colon followed by
- the number '0' or '1', indicating whether results should be sorted in
- increasing or decreasing order according to that field. 0==Decreasing is
- the default.
- </para>
- </listitem>
- </varlistentry>
-
+ <term>sort</term>
+ <listitem>
+ <para>
+ Specifies sort criteria. The argument is a comma-separated list
+ (no whitespace allowed) of sort fields, with the highest-priority
+ field first. A sort field may be followed by a colon followed by
+ the number '0' or '1', indicating whether results should be sorted in
+ increasing or decreasing order according to that field. 0==Decreasing is
+ the default. Sort field names can be any field name designated as a sort field
+ in the pazpar2.cfg file, or the special name 'relevance'.
+ </para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</para>
<para>
<refsect2 id="command-record">
<title>record</title>
<para>
- Retrieves a detailed record. Parameters:
+ Retrieves a detailed record. Unlike the
+ <link linkend="command-show">show</link> command, this command
+ returns metadata records before merging takes place. Parameters:
<variablelist>
<varlistentry>
<listitem>
<para>
Session ID
- </para>
+ </para>
</listitem>
</varlistentry>
</para>
</listitem>
</varlistentry>
+
+ <varlistentry>
+ <term>offset</term>
+ <listitem>
+ <para>
+ This optional parameter is an integer which, when given, makes
+ Pazpar2 return the raw record for a target. The raw record
+ from first target is numbered 0, second numbered 1, etc.
+ When a raw record is returned Pazpar2 will XSLT transform the
+ record but an XML version is returned. All ISO2709 records are
+ returned as MARCXML. OPAC records are returned as YAZ'
+ OPAC with an MARCXML sibling.
+ </para>
+ <para>
+ When offset is not given the Pazpar2 metadata for the record
+ is returned and with metadata for each targets' data specified
+ in a 'location' list.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>syntax</term>
+ <listitem>
+ <para>
+ This optional parameter is the record syntax used for raw
+ transfer (i.e. when offset is specified). If syntax is not given,
+ but offset is used, the value of pz:requestsyntax is used.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>esn</term>
+ <listitem>
+ <para>
+ This optional parameter is the element set name used to retrieval
+ of a raw record (i.e. when offset is specified).
+ If esn is not given, but offset is used, the value of pz:elements
+ is used.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>binary</term>
+ <listitem>
+ <para>
+ This optional parameter enables "binary" response for retrieval
+ of a raw record (i.e. when offset is specified). For binary
+ responses the record is <emphasis>not</emphasis> converted to
+ XML and the HTTP content type is application/octet-stream.
+ </para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</para>
<para>
<md-author>Mairs, John W.</md-author>
<md-subject>Cartography</md-subject>
</record>
- <screen><![CDATA[
]]></screen>
</para>
</refsect2>
<title>termlist</title>
<para>
Retrieves term list(s). Parameters:
-
-session
-name -- comma-separated list of termlist names (default "subject")
-
+
+ <variablelist>
+ <varlistentry>
+ <term>session</term>
+ <listitem>
+ <para>
+ Session Id.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>name</term>
+ <listitem>
+ <para>
+ comma-separated list of termlist names (default "subject")
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>num</term>
+ <listitem>
+ <para>
+ maximum number of entries to return - default is 15.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
</para>
<para>
Example:
<term>session</term>
<listitem>
<para>
- Session Id.
+ Session Id.
</para>
</listitem>
</varlistentry>
<para>
Example:
<screen><![CDATA[
-search.pz2?session=605047297&command=record&id=3
+search.pz2?session=605047297&command=bytarget&id=3
]]></screen>
Example output:
</target>
<!-- ... more target nodes below as necessary -->
</bytarget>
- <screen><![CDATA[
]]></screen>
-
- The following client states are defined: Client_Connecting,
- Client_Connected, Client_Idle, Client_Initializing, Client_Searching,
- Client_Searching, Client_Presenting, Client_Error, Client_Failed,
- Client_Disconnected, Client_Stopped.
+
+ The following client states are defined: Client_Connecting,
+ Client_Connected, Client_Idle, Client_Initializing, Client_Searching,
+ Client_Searching, Client_Presenting, Client_Error, Client_Failed,
+ Client_Disconnected, Client_Stopped, Client_Continue.
</para>
</refsect2>
</refsect1>
+ <refsect1><title>SEE ALSO</title>
+ <para>
+ Pazpar2:
+ <citerefentry>
+ <refentrytitle>pazpar2</refentrytitle>
+ <manvolnum>8</manvolnum>
+ </citerefentry>
+ </para>
+ <para>
+ Pazpar2 Configuration:
+ <citerefentry>
+ <refentrytitle>pazpar2_conf</refentrytitle>
+ <manvolnum>5</manvolnum>
+ </citerefentry>
+ </para>
+ </refsect1>
</refentry>
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