From: Adam Dickmeiss Date: Fri, 22 Jun 2007 13:18:23 +0000 (+0000) Subject: Fixed several spellings. Indentation is 1 (as given in Emacs locals) X-Git-Tag: PAZPAR2.1.0.1~18 X-Git-Url: http://lists.indexdata.dk/?a=commitdiff_plain;h=98e1ff5ebcca708e56e87ed5ff3596cdf9b2ae1a;p=pazpar2-moved-to-github.git Fixed several spellings. Indentation is 1 (as given in Emacs locals) --- diff --git a/doc/pazpar2.xml b/doc/pazpar2.xml index a409402..b739405 100644 --- a/doc/pazpar2.xml +++ b/doc/pazpar2.xml @@ -8,7 +8,7 @@ %idcommon; ]> - + Pazpar2 @@ -39,7 +39,7 @@ DESCRIPTION - pazpar2 is the pazpar2 Metasearch daemon + pazpar2 is the Pazpar2 Metasearch daemon and server. In normal operation it acts as a simple HTTP server which serves the Pazpar2 protocol. @@ -66,7 +66,7 @@ - Puts the pazpar2 server in the background. + Puts the Pazpar2 server in the background. @@ -74,7 +74,7 @@ Specifies main configuration. This option must be specified - in order for pazpar2 to operate normally. + in order for Pazpar2 to operate normally. @@ -82,7 +82,7 @@ - Specifies log file. The log file must be specified when pazpar2 + Specifies log file. The log file must be specified when Pazpar2 is running in the background (-D). @@ -91,8 +91,8 @@ - Specifies PID file. If pazpar2 is started and configured properly - the file given holds the process ID of the pazpar2 process. + Specifies PID file. If Pazpar2 is started and configured properly + the file given holds the process ID of the Pazpar2 process. @@ -111,7 +111,7 @@ - Specifies that pazpar2 change user to the + Makes the Pazpar2 server change user ID to the uid given. This, normally, require root privilege. @@ -122,9 +122,9 @@ - Makes the pazpar2 server operate in debugging mode. This prevents pazpar2 - from making separate threads and processes. This option - should not be used in production. + Makes the Pazpar2 server operate in debugging mode. + This prevents Pazpar2 from making separate threads and processes. + This option should not be used in production. diff --git a/doc/pazpar2_conf.xml b/doc/pazpar2_conf.xml index 158b3be..dab43f6 100644 --- a/doc/pazpar2_conf.xml +++ b/doc/pazpar2_conf.xml @@ -8,7 +8,7 @@ %idcommon; ]> - + Pazpar2 @@ -31,275 +31,276 @@ DESCRIPTION - - The pazpar2 configuration file, together with any referenced XSLT files, - govern pazpar2's behavior as a client, and control the normalization and - extraction of data elements from incoming result records, for the - purposes of merging, sorting, facet analysis, and display. - - - - The file is specified using the option -f on the pazpar2 command line. - There is not presently a way to reload the configuration file without - restarting pazpar2, although this will most likely be added some time - in the future. - + + The Pazpar2 configuration file, together with any referenced XSLT files, + govern Pazpar2's behavior as a client, and control the normalization and + extraction of data elements from incoming result records, for the + purposes of merging, sorting, facet analysis, and display. + + + + The file is specified using the option -f on the Pazpar2 command line. + There is not presently a way to reload the configuration file without + restarting Pazpar2, although this will most likely be added some time + in the future. + - + FORMAT + + The configuration file is XML-structured. It must be valid XML. All + elements specific to Pazpar2 should belong to the namespace + http://www.indexdata.com/pazpar2/1.0 + (this is assumed in the + following examples). The root element is named pazpar2. + Under the root element are a number of elements which group categories of + information. The categories are described below. + + + server - The configuration file is XML-structured. It must be valid XML. All - elements specific to pazpar2 should belong to the namespace - "http://www.indexdata.com/pazpar2/1.0" (this is assumed in the - following examples). The root element is named 'pazpar2'. Under the - root element are a number of elements which group categories of - information. The categories are described below. - - - server + This section governs overall behavior of the client. The data + elements are described below. + + + + listen + + + Configures the webservice -- this controls how you can connect + to Pazpar2 from your browser or server-side code. The + attributes 'host' and 'port' control the binding of the + server. The 'host' attribute can be used to bind the server to + a secondary IP address of your system, enabling you to run + Pazpar2 on port 80 alongside a conventional web server. You + can override this setting on the command line using the option -h. + + + + + + proxy + + + If this item is given, Pazpar2 will forward all incoming HTTP + requests that do not contain the filename 'search.pz2' to the + host and port specified using the 'host' and 'port' + attributes. The 'myurl' attribute is required, and should provide + the base URL of the server. Generally, the HTTP URL for the host + specified in the 'listen' parameter. This functionality is + crucial if you wish to use + Pazpar2 in conjunction with browser-based code (JS, Flash, + applets, etc.) which operates in a security sandbox. Such code + can only connect to the same server from which the enclosing + HTML page originated. Pazpar2s proxy functionality enables you + to host all of the main pages (plus images, CSS, etc) of your + application on a conventional webserver, while efficiently + processing webservice requests for metasearch status, results, + etc. + + + + + + icu_chain + + + Definition of ICU tokenization and normalization rules + are used if ICU support is compiled in. The 'id' + attribute is currently not used, and the 'locale' + attribute must be set to one of the locale strings + defined in ICU. The child elements listed below can be + in any order, except the 'index' element which logically + belongs to the end of the list. The stated tokenization, + normalization and charmapping instructions are performed + in order from top to bottom. + + + casemap + + + The attribute 'rule' defines the direction of the + per-character casemapping, allowed values are "l" + (lower), "u" (upper), "t" (title). + + + + normalize + + + Normalization and transformation of tokens follows + the rules defined in the 'rule' attribute. For + possible values we refer to the extensive ICU + documentation found at the + ICU + transformation home page. Set filtering + principles are explained at the + ICU set and + filtering page. + + + + tokenize + + + Tokenization is the only rule in the ICU chain + which splits one token into multiple tokens. The + 'rule' attribute may have the following values: + "s" (sentence), "l" (line-break), "w" (word), and + "c" (character), the later probably not being + very useful in a pruning Pazpar2 installation. + + + + index + + + Finally the 'index' element instruction - without + any 'rule' attribute - is used to store the tokens + after chain processing in the relevance ranking + unit of Pazpar2. It will always be the last + instruction in the chain. + + + + + + + + + service + - This section governs overall behavior of the client. The data - elements are described below. + This nested element controls the behavior of Pazpar2 with + respect to your data model. In Pazpar2, incoming records are + normalized, using XSLT, into an internal representation. + The 'service' section controls the further processing and + extraction of data from the internal representation, primarily + through the 'metadata' sub-element. - - - listen - + + + metadata + + + One of these elements is required for every data element in + the internal representation of the record (see + . It governs + subsequent processing as pertains to sorting, relevance + ranking, merging, and display of data elements. It supports + the following attributes: + + + + name + - Configures the webservice -- this controls how you can connect - to pazpar2 from your browser or server-side code. The - attributes 'host' and 'port' control the binding of the - server. The 'host' attribute can be used to bind the server to - a secondary IP address of your system, enabling you to run - pazpar2 on port 80 alongside a conventional web server. You - can override this setting on the command lineusing the option -h. + This is the name of the data element. It is matched + against the 'type' attribute of the + 'metadata' element + in the normalized record. A warning is produced if + metadata elements with an unknown name are + found in the + normalized record. This name is also used to + represent + data elements in the records returned by the + webservice API, and to name sort lists and browse + facets. - - - - - proxy - + + + + type + - If this item is given, pazpar2 will forward all incoming HTTP - requests that do not contain the filename 'search.pz2' to the - host and port specified using the 'host' and 'port' - attributes. The 'myurl' attribute is required, and should provide - the base URL of the server. Generally, the HTTP URL for the host - specified in the 'listen' parameter. This functionality is - crucial if you wish to use - pazpar2 in conjunction with browser-based code (JS, Flash, - applets, etc.) which operates in a security sandbox. Such code - can only connect to the same server from which the enclosing - HTML page originated. Pazpar2s proxy functionality enables you - to host all of the main pages (plus images, CSS, etc) of your - application on a conventional webserver, while efficiently - processing webservice requests for metasearch status, results, - etc. + The type of data element. This value governs any + normalization or special processing that might take + place on an element. Possible values are 'generic' + (basic string), 'year' (a range is computed if + multiple years are found in the record). Note: This + list is likely to increase in the future. - - - - - icu_chain - + + + + brief + - Definition of ICU tokenization and normalization rules - are used if ICU support is compiled in. The 'id' - attribute is currently not used, and the 'locale' - attribute must be set to one of the locale strings - defined in ICU. The child elements listed below can be - in any order, except the 'index' element which logically - belongs to the end of the list. The stated tokenization, - normalization and charmapping instructions are performed - in order from top to bottom. + If this is set to 'yes', then the data element is + includes in brief records in the webservice API. Note + that this only makes sense for metadata elements that + are merged (see below). The default value is 'no'. - - casemap - - - The attribure 'rule' defines the direction of the - per-character casemapping, allowed values are "l" - (lower), "u" (upper), "t" (title). - - - - normalize - - - Normalization and transformation of tokens follows - the rules defined in the 'rule' attribute. For - possible values we refer to the extensive ICU - documentation found at the - ICU - transformation home page. Set filtering - principles are explained at the - ICU set and - filtering page. - - - - tokenize - - - Tokenization is the only rule in the ICU chain - which splits one token into multiple tokens. The - 'rule' attribute may have the following values: - "s" (sentence), "l" (line-break), "w" (word), and - "c" (character), the later probably not beeing - very useful in a runing pazpar2 installation. - - - - index - - - Finally the 'index' element instruction - without - any 'rule' attribute - is used to store the tokens - after chain processing in the relevance ranking - unit of Pazpar2. It will always be the last - instruction in the chain. - - - - - - - - - service - + + + + sortkey + - This nested element controls the behavior of pazpar2 with - respect to your data model. In pazpar2, incoming records are - normalized, using XSLT, into an internal representation. - The 'service' section controls the further processing and - extraction of data from the internal representation, primarily - through the 'metdata' sub-element. + Specifies that this data element is to be used for + sorting. The possible values are 'numeric' (numeric + value), 'skiparticle' (string; skip common, leading + articles), and 'no' (no sorting). The default value is + 'no'. - - - metadata - - - One of these elements is required for every data element in - the internal representation of the record (see - . It governs - subsequent processing as pertains to sorting, relevance - ranking, merging, and display of data elements. It supports - the following attributes: - - - - name - - - This is the name of the data element. It is matched - against the 'type' attribute of the - 'metadata' element - in the normalized record. A warning is produced if - metdata elements with an unknown name are - found in the - normalized record. This name is also used to - represent - data elements in the records returned by the - webservice API, and to name sort lists and browse - facets. - - - - - type - - - The type of data element. This value governs any - normalization or special processing that might take - place on an element. Possible values are 'generic' - (basic string), 'year' (a range is computed if - multiple years are found in the record). Note: This - list is likely to increase in the future. - - - - - brief - - - If this is set to 'yes', then the data element is - includes in brief records in the webservice API. Note - that this only makes sense for metadata elements that - are merged (see below). The default value is 'no'. - - - - - sortkey - - - Specifies that this data element is to be used for - sorting. The possible values are 'numeric' (numeric - value), 'skiparticle' (string; skip common, leading - articles), and 'no' (no sorting). The default value is - 'no'. - - - - - rank - - - Specifies that this element is to be used to - help rank - records against the user's query (when ranking is - requested). The value is an integer, used as a - multiplier against the basic TF*IDF score. A value of - 1 is the base, higher values give additional - weight to - elements of this type. The default is '0', which - excludes this element from the rank calculation. - - - - - termlist - - - Specifies that this element is to be used as a - termlist, or browse facet. Values are tabulated from - incoming records, and a highscore of values (with - their associated frequency) is made available to the - client through the webservice API. - The possible values - are 'yes' and 'no' (default). - - - - - merge - - - This governs whether, and how elements are extracted - from individual records and merged into cluster - records. The possible values are: 'unique' (include - all unique elements), 'longest' (include only the - longest element (strlen), 'range' (calculate a range - of values across al matching records), 'all' (include - all elements), or 'no' (don't merge; this is the + + + + rank + + + Specifies that this element is to be used to + help rank + records against the user's query (when ranking is + requested). The value is an integer, used as a + multiplier against the basic TF*IDF score. A value of + 1 is the base, higher values give additional + weight to + elements of this type. The default is '0', which + excludes this element from the rank calculation. + + + + + termlist + + + Specifies that this element is to be used as a + termlist, or browse facet. Values are tabulated from + incoming records, and a highscore of values (with + their associated frequency) is made available to the + client through the webservice API. + The possible values + are 'yes' and 'no' (default). + + + + + merge + + + This governs whether, and how elements are extracted + from individual records and merged into cluster + records. The possible values are: 'unique' (include + all unique elements), 'longest' (include only the + longest element (strlen), 'range' (calculate a range + of values across all matching records), 'all' (include + all elements), or 'no' (don't merge; this is the default); - - - - - - - - - - - - - - + + + + + + + + + + + + + + EXAMPLE Below is a working example configuration: @@ -335,209 +336,212 @@ ]]> - + - + TARGET SETTINGS + + Pazpar2 features a cunning scheme by which you can associate various + kinds of attributes, or settings with search targets. This can be done + through XML files which are read at startup; each file can associate + one or more settings with one or more targets. The file format is generic + in nature, designed to support a wide range of application requirements. The + settings can be purely technical things, like, how to perform a title + search against a given target, or it can associate arbitrary name=value + pairs with groups of targets -- for instance, if you would like to + place all commercial full-text bases in one group for selection + purposes, or you would like to control what targets are accessible + to users by default. + + + + During startup, Pazpar2 will recursively read a specified directory + (can be identified in the pazpar2.cfg file or on the command line), and + process any settings files found therein. + + + + Clients of the Pazpar2 webservice interface can selectively override + settings for individual targets within the scope of one session. This + can be used in conjunction with an external authentication system to + determine which resources are to be accessible to which users. Pazpar2 + itself has no notion of end-users, and so can be used in conjunction + with any type of authentication system. Similarly, the authentication + tokens submitted to access-controlled search targets can similarly be + overridden, to allow use of Pazpar2 in a consortial or multi-library + environment, where different end-users may need to be represented to + some search targets in different ways. This, again, can be managed + using an external database or other lookup mechanism. Setting overrides + can be performed either using the 'init' or the 'settings' webservice + command. + + + + In fact, every setting that applies to a database (except pz:id, which + can only be used for filtering targets to use for a search) can be overridden + on a per-session basis. This allows the client to override specific CCL fields + for searching, etc., to meet the needs of a session or user. + + + + Finally, as an extreme case of this, the webservice client can + introduce entirely new targets, on the fly, as part of the init or + settings command. This is useful if you desire to manage information + about your search targets in a separate application such as a database. + You do not need any static settings file whatsoever to run Pazpar2 -- as + long as the webservice client is prepared to supply the necessary + information at the beginning of every session. + + + - Pazpar2 features a cunning scheme by which you can associate various - kinds of attributes, or settings with search targets. This can be done - through XML files which are read at startup; each file can associate - one or more settings with one or more targets. The file format is generic - in nature, designed to support a wide range of application requirements. The - settings can be purely technical things, like, how to perform a title - search against a given target, or it can associate arbitrary name=value - pairs with groups of targets -- for instance, if you would like to - place all commercial full-text bases in one group for selection - purposes, or you would like to control what targets are accessible - to users by default. + The following discussion of practical issues related to session and settings + management are cast in terms of a user interface based on Ajax/Javascript + technology. It would apply equally well to many other kinds of browser-based logic. - + + + + Typically, a Javascript client is not allowed to directly alter the parameters + of a session. There are two reasons for this. One has to do with access + to information; typically, information about a user will be stored in a + system on the server side, or it will be accessible in some way from the server. + However, since the Javascript client cannot be entirely trusted (some hostile + agent might in fact 'pretend' to be a regular ws client), it is more robust + to control session settings from scripting that you run as part of your + webserver. Typically, this can be handled during the session initialization, + as follows: + + + + Step 1: The Javascript client loads, and asks the webserver for a new Pazpar2 + session ID. This can be done using a Javascript call, for instance. Note that + it is possible to submit Ajax HTTPXmlRequest calls either to Pazpar2 or to the + webserver that Pazpar2 is proxying for. See (XXX Insert link to Pazpar2 protocol). + + + + Step 2: Code on the webserver authenticates the user, by database lookup, + LDAP access, NCIP, etc. Determines which resources the user has access to, + and any user-specific parameters that are to be applied during this session. + + + + Step 3: The webserver initializes a new Pazpar2 settings, and sets user-specific + parameters as necessary, using the init webservice command. A new session ID is + returned. + + + + Step 4: The webserver returns this session ID to the Javascript client, which then + uses the session ID to submit searches, show results, etc. + + + + Step 5: When the Javascript client ceases to use the session, Pazpar2 destroys + any session-specific information. + + + SETTINGS FILE FORMAT - During startup, pazpar2 will recursively read a specified directory - (can be identified in the pazpar2.cfg file or on the command line), and - process any settings files found therein. + Each file contains a root element named <settings>. It may + contain one or more <set> elements. The settings and set + elements may contain the following attributes. Attributes in the set node + overrides those in the setting root element. Each set node must + specify (directly, or inherited from the parent node) at least a + target, name, and value. - - - Clients of the pazpar2 webservice interface can selectively override - settings for individual targets within the scope of one session. This - can be used in conjunction with an external authentication system to - determine which resources are to be accessible to which users. Pazpar2 - itself has no notion of end-users, and so can be used in conjunction - with any type of authentication system. Similarly, the authentication - tokens submitted to access-controlled search targets can similarly be - overriden, to allow use of pazpar2 in a consortial or multi-library - environment, where different end-users may need to be represented to - some search targets in different ways. This, again, can be managed - using an external database or other lookup mechanism. Setting overrides - can be performed either using the 'init' or the 'settings' webservice - command (see XXX ref to pazpar2 protocol). - - - - In fact, every setting that applies to a database (except pz:id, which - can only be used for filtering targets to use for a search) can be overriden - on a per-session basis. This allows the client to override specific CCL fields - for searching, etc., to meet the needs of a session or user. - - - - Finally, as an extreme case of this, the webservice client can - introduce entirely new targets, on the fly, as part of the init or - settings command. This is useful if you desire to manage information - about your search targets in a separate application such as a database. - You do not need any static settings file whatsoever to run pazpar2 -- as - long as the webservice client is prepared to supply the necessary - information at the beginning of every session. - - - - NOTE: The following discussion of practical issues related to session and settings - management are cast in terms of a user interface based on Ajax/Javascript - technology. It would apply equally well to many other kinds of browser-based logic. - - - - Typically, a Javascript client is not allowed to directly alter the parameters - of a session. There are two reasons for this. One has to do with access - to information; typically, information about a user will be stored in a - system on the server side, or it will be accessible in some way from the server. - However, since the Javascript client cannot be entirely trusted (some hostile - agent might in fact 'pretend' to be a regular ws client), it is more robust - to control session sesttings from scripting that you run as part of your - webserver. Typically, this can be handled during the session initialization, - as follows: - - - - Step 1: The Javascript client loads, and asks the webserver for a new pazpar2 - session ID. This can be done using a Javascript call, for instance. Note that - it is possible to submit Ajax HTTPXmlRequest calls either to pazpar2 or to the - webserver that pazpar2 is proxying for. See (XXX Insert link to pazpar2 protocol). - - - - Step 2: Code on the webserver authenticates the user, by database lookup, - LDAP access, NCIP, etc. Determines which resources the user has access to, - and any user-specific parameters that are to be applied during this session. - - - - Step 3: The webserver initializes a new pazpar2 settings, and sets user-specific - parameters as necessary, using the init webservice command. A new session ID is - returned. - - - - Step 4: The webserver returns this session ID to the Javascript client, which then - uses the session ID to submit searches, show results, etc. - - - - Step 5: When the Javascript client ceases to use the session, pazpar2 destroys - any session-specific information. - - - SETTINGS FILE FORMAT - - Each file contains a root element named <settings>. It may - contain one or more <set> elements. The settings and set - elements may contain the following attributes. Attributes in the set node - overrides those in the setting root element. Each set node must - specify (directly, or inherited from the parent node) at least a - target, name, and value. - - - - - target - - - This specifies the search target to which this setting should be - applied. Targets are identified by their Z39.50 URL, generally - including the host, port, and database name, (e.g. - bagel.indexdata.com:210/marc). Two wildcard forms are accepted: - * (asterisk) matches all known targets; - bagel.indexdata.com:210/* matches all known databases on the given - host. - - - A precedence system determines what happens if there are - overlapping values for the same setting name for the same - target. A setting for a specific target name overrides a - setting whch specifies target using a wildcard. This makes it - easy to set defaults for all targets, and then override them - for specific targets or hosts. If there are - multiple overlapping settings with the same name and target - value, the 'precedence' attribute determines what happens. - - - - - name - - - The name of the setting. This can be anything you like. - However, pazpar2 reserves a number of setting names for - specific purposes, all starting with 'pz:', and it is a good - idea to avoid that prefix if you make up your own setting - names. See below for a list of reserved variables. - - - - - value - - - The value of the setting. Generally, this can be anything you - want -- however, some of the reserved settings may expect - specific kinds of values. - - - - - precedence - - - This should be an integer. If not provided, the default value - is 0. If two (or more) settings have the same content for - target and name, the precedence value determines the outcome. - If both settings have the same precedence value, they are both - applied to the target(s). If one has a higher value, then the - value of that setting is applied, and the other one is ignored. - - - - - + + + + target + - By setting defaults for target, name, or value in the root - settings node, you can use the settings files in many different - ways. For instance, you can use a single file to set defaults for - many different settings, like search fields, retrieval syntaxes, - etc. You can have one file per server, which groups settings for - that server or target. You could also have one file which associates - a number of targets with a given setting, for instance, to associate - many databases with a given category or class that makes sense - within your application. + This specifies the search target to which this setting should be + applied. Targets are identified by their Z39.50 URL, generally + including the host, port, and database name, (e.g. + bagel.indexdata.com:210/marc). + Two wildcard forms are accepted: + * (asterisk) matches all known targets; + bagel.indexdata.com:210/* matches all + known databases on the given host. - - The following examples illustrate uses of the settings system to - associate settings with targets to meet different requirements. + A precedence system determines what happens if there are + overlapping values for the same setting name for the same + target. A setting for a specific target name overrides a + setting which specifies target using a wildcard. This makes it + easy to set defaults for all targets, and then override them + for specific targets or hosts. If there are + multiple overlapping settings with the same name and target + value, the 'precedence' attribute determines what happens. - + + + + name + + + The name of the setting. This can be anything you like. + However, Pazpar2 reserves a number of setting names for + specific purposes, all starting with 'pz:', and it is a good + idea to avoid that prefix if you make up your own setting + names. See below for a list of reserved variables. + + + + + value + + + The value of the setting. Generally, this can be anything you + want -- however, some of the reserved settings may expect + specific kinds of values. + + + + + precedence + - The example below associates a set of default values that can be - used across many targets. Note the wildcard for targets. - This associates the given settings with all targets for which no - other information is provided. - + + + + + + By setting defaults for target, name, or value in the root + settings node, you can use the settings files in many different + ways. For instance, you can use a single file to set defaults for + many different settings, like search fields, retrieval syntaxes, + etc. You can have one file per server, which groups settings for + that server or target. You could also have one file which associates + a number of targets with a given setting, for instance, to associate + many databases with a given category or class that makes sense + within your application. + + + + The following examples illustrate uses of the settings system to + associate settings with targets to meet different requirements. + + + + The example below associates a set of default values that can be + used across many targets. Note the wildcard for targets. + This associates the given settings with all targets for which no + other information is provided. + - + @@ -562,13 +566,13 @@ ]]> - - - - The next example shows certain settings overriden for one target, - one which returns XML records containing DublinCore elements, and - which furthermore requires a username/password. - + + + The next example shows certain settings overridden for one target, + one which returns XML records containing DublinCore elements, and + which furthermore requires a username/password. + @@ -577,152 +581,152 @@ ]]> - - - - The following example associates a specific name/value combination - with a number of targets. The targets below are access-restricted, - and can only be used by users with special credentials. - + + + The following example associates a specific name/value combination + with a number of targets. The targets below are access-restricted, + and can only be used by users with special credentials. + ]]> + + + + + RESERVED SETTING NAMES + + The following setting names are reserved by Pazpar2 to control the + behavior of the client function. + + + + + pz:cclmap:xxx + + + This establishes a CCL field definition or other setting, for + the purpose of mapping end-user queries. XXX is the field or + setting name, and the value of the setting provides parameters + (e.g. parameters to send to the server, etc.). Please consult + the YAZ manual for a full overview of the many capabilities of + the powerful and flexible CCL parser. - - - - RESERVED SETTING NAMES - The following setting names are reserved by pazpar2 to control the - behavior of the client function. + Note that it is easy to establish a set of default parameters, + and then override them individually for a given target. - - - - pz:cclmap:xxx - - - This establishes a CCL field definition or other setting, for - the purpose of mapping end-user queries. XXX is the field or - setting name, and the value of the setting provides parameters - (e.g. parameters to send to the server, etc.). Please consult - the YAZ manual for a full overview of the many capabilities of - the powerful and flexible CCL parser. - - - Note that it is easy to etablish a set of default parameters, - and then override them individually for a given target. - - - - - pz:requestsyntax - - - This specifies the record syntax to use when requesting - records from a given server. The value can be a symbolic name like - marc21 or xml, or it can be a Z39.50-style dot-separated OID. - - - - - pz:elements - - - The element set name to be used when retrieving records from a - server (not yet implemented). - - - - - pz:piggyback - - - Piggybacking enables the server to retrieve records from the - server as part of the search response in Z39.50. Almost all - servers support this (or fail it gracefully), but a few - servers will produce undesirable results. - Set to '1' to enable piggybacking, '0' to disable it. Default - is 1 (piggybacking enabled). - - - - - pz:nativesyntax - - - The representation (syntax) of the retrieval records. Currently - recognized values are iso2709 and xml. - - - For iso2709, can also specify a native character set, e.g. "iso2709;latin-1". - If no character set is provided, MARC-8 is assumed. - - - - - pz:xslt - - - Provides the path of an XSLT stylesheet which will be used to - map incoming records to the internal representation. - - - - - pz:authentication - - - Sets an authentication string for a given server. See the section on - authorization and authentication for discussion. - - - - - pz:allow - - - Allows or denies access to the resources it is applied to. Possible - values are '0' and '1'. The default is '1' (allow access to this resource). - See the manual section on authorization and authentication for discussion - about how to use this setting. - - - - - pz:maxrecs - - - Controls the maximum number of records to be retrieved from a - server. The default is 100 (not yet implemented). - - - - - pz:id - - - This setting can't be 'set' -- it contains the ID (normally - ZURL) for a given target, and is useful for filtering -- - specifically when you want to select one or more specific - targets in the search command. - - - - - pz:zproxy - - - The 'pz:zproxy' setting has the value syntax - 'host.internet.adress:port', it is used to tunnel Z39.50 - requests through the named Z39.50 proxy. - - - - - + + + + pz:requestsyntax + + + This specifies the record syntax to use when requesting + records from a given server. The value can be a symbolic name like + marc21 or xml, or it can be a Z39.50-style dot-separated OID. + + + + + pz:elements + + + The element set name to be used when retrieving records from a + server (not yet implemented). + + + + + pz:piggyback + + + Piggybacking enables the server to retrieve records from the + server as part of the search response in Z39.50. Almost all + servers support this (or fail it gracefully), but a few + servers will produce undesirable results. + Set to '1' to enable piggybacking, '0' to disable it. Default + is 1 (piggybacking enabled). + + + + + pz:nativesyntax + + + The representation (syntax) of the retrieval records. Currently + recognized values are iso2709 and xml. + + + For iso2709, can also specify a native character set, e.g. "iso2709;latin-1". + If no character set is provided, MARC-8 is assumed. + + + + + pz:xslt + + + Provides the path of an XSLT stylesheet which will be used to + map incoming records to the internal representation. + + + + + pz:authentication + + + Sets an authentication string for a given server. See the section on + authorization and authentication for discussion. + + + + + pz:allow + + + Allows or denies access to the resources it is applied to. Possible + values are '0' and '1'. The default is '1' (allow access to this resource). + See the manual section on authorization and authentication for discussion + about how to use this setting. + + + + + pz:maxrecs + + + Controls the maximum number of records to be retrieved from a + server. The default is 100 (not yet implemented). + + + + + pz:id + + + This setting can't be 'set' -- it contains the ID (normally + ZURL) for a given target, and is useful for filtering -- + specifically when you want to select one or more specific + targets in the search command. + + + + + pz:zproxy + + + The 'pz:zproxy' setting has the value syntax + 'host.internet.adress:port', it is used to tunnel Z39.50 + requests through the named Z39.50 proxy. + + + + + diff --git a/doc/pazpar2_protocol.xml b/doc/pazpar2_protocol.xml index db67d94..23ddc28 100644 --- a/doc/pazpar2_protocol.xml +++ b/doc/pazpar2_protocol.xml @@ -8,7 +8,7 @@ %idcommon; ]> - + Pazpar2 @@ -33,7 +33,7 @@ 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. + scripting environment) to interact with the search logic in Pazpar2. Each command is described in sub sections to follow. @@ -88,34 +88,36 @@ - settings - - 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. - - - - 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. - - + settings + + 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. + + + + 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. + + + - Note: As a shortcut, it is also possible to override settings directly in - the init command. + As a shortcut, it is also possible to override settings directly in + the init command. - - - Example: - + + + Example: + Response: @@ -130,7 +132,7 @@ search Launches a search, parameters: - + session @@ -250,19 +252,19 @@ search.pz2?session=2044502273&command=stat - sort - - - 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 + + + 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. + + + + @@ -307,7 +309,7 @@ search.pz2?session=2044502273&command=show&start=0&num=2&sort=title:1 Session ID - + @@ -414,7 +416,7 @@ Output: session - Session Id. + Session Id. @@ -441,11 +443,11 @@ search.pz2?session=605047297&command=record&id=3 ]]> - - 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.