Introduktion till API:er, webbtjänster & att integrera LIBRIS tjänster i OPAC

Att använda LIBRIS öppna infrastruktur
Högskolan i Jönköping
20-21 maj 2010

#librisAPIws

20 maj
12.00 – 12.10 Inledning
12.10 – 13.00 Tankarna bakom LIBRIS öppna infrastruktur
13.00 – 13.30 Introduktion till API:er, webbtjänster och LIBRIS system
13.30 – 14.30 Integrera LIBRIS tjänster i din OPAC
14.30 – 15.00 Paus
15.00 – 16.00 Integrera LIBRIS tjänster i din webbplats
16.00 – 17.00 Att skapa en söktjänst med LIBRIS som komponent
17.00 – Gruppdiskussioner på temat Vad skulle du vilja göra med LIBRIS API:er och tjänster?
21 maj
09.00 – 09.30 Återkoppling till gårdagens diskussion
09.30 – 10.00 SUB:s arbete med LIBRIS API:er
10.00 – 10.20 Paus
10.20 – 11.20 Hur kommer LIBRIS öppna infrastruktur att utvecklas, vad kan vi förvänta oss i framtiden?
11.20 – 12.00 Öppna frågor till en panel med de som presenterat under dagarna
12.00 – 12.30 Hur går vi vidare, uppföljning, avrundning och avslutning

Introduktion till API:er, webbtjänster &
att integrera LIBRIS tjänster i OPAC
Daniel Forsman
Chalmers bibliotek
20 maj 2010

”Basic scholarly information usepracticeshaveshiftedrapidlyin recent years,
and as a result the academiclibrary is increasinglybeingdisintermediated from the
discoveryprocess, riskingirrelevancein one of itscorefunctionalareas”
Ithaka S+R 2009 FacultySurvey Report
The future of libraries? Technology has created a verydifferent contextfor the
missions of academic and research libraries
No Brief Candle, DaphneeRentfrow

LIBRIS
ILS
OPAC
CAT
ACQ
ILL
CAT
OPAC
Patron
CIRC

OA
Arkiv
Linked data
Fed. search
Link
Resolv.
ERM
LIBRIS
ILS
Aggr.
Rekommendation
Proxy & SSO
OPAC
CAT
ACQ
ILL
CAT
RDF
ILL
OPAC
Patron
Aggr. DB
Discovery
CIRC
Integratedsearch
Amazon
Google
Enskild DB
OER
Digitalisering

Lokalt
Globalt
Kontext
SaaS
Nationellt
Individ
Konvergens
Paradigm
skifte
Institution
System
Bransch
glidning
OS
Sam
arbete
Digitalisering
Institutionella arkiv
Linked data
API
Mobil
Data
OA
Open
Data
Kanaler
Webb
Licens
Bib. service
Lokaler
DaaS
VLE

Öppenhet i en tjänstebaserad värld
Open standards
Open Access
Open educationalresources
Open source
Open platform
Open data
Garanti för teoretisk valfrihet

Webben har blivit en plattform där gränssnitten frikopplas från systemen och de underliggande tjänsterna
Decoupling of frontend from backend
WorldcatAPI, XISBN, LibraryThing for Libraries , LIBRIS Xsearch, MetaLib | Aleph X-server, SFX API, EbscoHost Integration Toolkit,
ISI Web Services, Amazon, SRU/W, RDF | Linked Data, Google Code, Flickr API, Yahoo! Developer Network, Yahoo! Pipes … … …

API?
”An ApplicationProgramming Interface (API) is an interface implemented by a software program whichenables it to interact with other software. It is similar to the way the user interface facilitates interaction between humans and computers. An API is implemented by applications, libraries, and operating systems to determinetheirvocabularies and calling conventions, and is used to access their services. It mayincludespecifications for routines, data structures, object classes, and protocols used to communicatebetween the consumer and the implementer of the API”
// Wikipedia – ApplicationProgramming Interface

Webbtjänst?
“A Web service is a software system designed to support interoperable machineto-machine interaction over a network. It has an interface described in a machineprocessable format (specifically WSDL). Other systems interact with the Web service in a mannerprescribed by itsdescriptionusing SOAP messages, typicallyconveyedusing HTTP with an XML serialization in conjunction with other Web related standards.“
// W3C definition
Web services are frequently just Internet Application Programming
Interfaces (API) that can be accessed over a network, such as the
Internet, and executed on a remote system hosting the requested
services. // Wikipedia – Web service

SOAP & REST
REST –Representational State Transfer - är en arkitektur för att tillhandahålla tjänster för maskin till maskin-kommunikation. Varje resurs är unikt adresserbar enligt en gemensam standard (URI). Grundläggande kommandon för att interagera med objekt baserade på de verb som är angivna i HTTP-standarden: POST, GET, PUT och DELETE.
// http://sv.wikipedia.org/wiki/Representational_State_Transfer
SOAP – Simple Object Access Protocol, men inte från och med 1.2, ett protokoll för utbyte av strukturerad information i form av XML
SOAP provides a simple and lightweightmechanism for exchangingstructured and typed information betweenpeers in a decentralized, distributedenvironmentusing XML. SOAP does not itselfdefineanyapplicationsemanticssuch as a programmingmodel or implementationspecificsemantics; rather it defines a simple mechanism for expressingapplicationsemantics by providing a modularpackagingmodel and encodingmechanisms for encoding data withinmodules. This allows SOAP to be used in a largevariety of systems ranging from messaging systems to RPC
// http://www.programmera.net/webservice/soap.php

AJAX är en akronym för Asynchronous JavaScript and XML (Asynkron JavaScript och XML) som är ett samlingsnamn för ett antal olika tekniker som kan användas för att bygga applikationer för World Wide Web med bättre interaktivitet än tidigare webbapplikationer. Kända tjänster som använder dessa lösningar är Gmail, Google Maps och Facebook.
XMLHttpRequest-objektet, som tillåter JavaScript på en webbsida att göra anrop till webbservern utan att sidan laddas om.
DOM (DocumentObjectModel) vilket tillåter JavaScript att skriva om innehåll på den aktuella sidan.
//http://sv.wikipedia.org/wiki/AJAX
DocumentObjectModel, förkortat DOM, är ett plattforms- och språkoberoende gränssnitt för åtkomst och dynamiskt uppdatering av ett dokuments innehåll, struktur och formatering.
// http://sv.wikipedia.org/wiki/Document_Object_Model

Vad behöver man?
För att fånga upp element på en webbsida manipulerar man DOM
Med XMLhttpRequest kan man skicka och få tillbaka data till webbläsaren utan att ladda om den
Javascript bibliotek som jQuery och Prototype gör detta enkelt
JSON-formatet gör att man kan läsa in data direkt i klienten via javascript
JSON (JavaScript Object Notation) is a lightweightdata-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate.
// http://www.json.org/
Om man inte kan få JSON utan ett XML format måste detta hanteras på servern där scriptet körs PERL, PHP, Python, Ruby osv.
Säkerhetsinställningarna för XMLhttpRequest gör att man inte kan anropa ”externa” servrar,
anrop måste ske lokalt eller via proxy
Mina exempel bygger i huvudsak på PHP och Prototype

Varför integrera webbtjänster i OPAC?
By exploringweb services and new technology wegain first hand experiencemakingusstrongercustomers and development partners
Strategy is to present libraryresources in a singlethoughtthroughstructure and presentation BUT ALSO to identify key services and make themavailableoutside the librarywebsite. Webservicesallowsus to do this.
By integrating services the localcollection is displayed in a broadercontext, part of a widenetwork of resources. The librarywebsite or OPAC turnsinto a small federatedsearch service, rich in functionality and content, seamlesslyintegrated.
Att kunna visa lokala resurser i ett regionalt, nationellt och globalt sammanhang

OPAC:en är inte decoupled …
Men de flesta tillåter att man stoppar in javascript
Javascript tillsammans med en ”hook” kan agera med ett serverside script
XML format spelar ingen roll för mig … metoden går att återanvända genom att använda PHP:s
färdiga funktioner för att göra anrop och bearbeta XML

Hooki full-999-body

<span id="$0100”>$0200
<span>
<br />

CSS selectors
Javascript
document.getElementById()
jQuery : jQuery('#id')
<divid="myDiv">id="myDiv"</div> <script>$("#myDiv").css("border","3px solid red");</script>
http://api.jquery.com/category/selectors/
Prototype : $$('#contents');
getElementsbyTagName
getElementsbyClassName
http://api.prototypejs.org/language/dollardollar/

//putissn in xissn variable
var xissn=document.getElementById("ISSN");
//pass issn to backend script, echoresult in diveJULIA
new Ajax.Updater('eJULIA', ’sfx.php', { method: 'get', success: 'eJULIA', failure: 'errors', parameters: {issn: xissn.innerHTML}

OPAC -> DOM manipulation -> AJAX -> PHP -> Webbtjänst -> OPAC

http://libris.kb.se/xsearch?query=word+of+mouth+marketing&format=mods

Att fånga söktermer
<script type="text/javascript">
//Retreive and store webpage URL
var TITLE = document.URL;
if(TITLE.search("request") > -1) {
//Find position of request in URL
var where_is_start1=TITLE.indexOf('request');
//Find the position of &find_code
if(TITLE.search("&x=") > -1) {
var where_is_end1=TITLE.indexOf('&x=');
}else{
var where_is_end1=TITLE.indexOf('&find_code=');
}
//Define a the position wheresearchwords start - at the end of request
var new_start=where_is_start+8;
//Put the searchwords in a string, defined by start and end position
searchword = TITLE.slice(new_start, where_is_end);
}
</script>

new Ajax.Updater(’libris', ’libris.php', {method: 'get', success: ’libris',
failure: 'errors', parameters: {libristerm: searchword} });

<?php
echo ’<STYLE TYPE="text/css">
a {text-decoration:none;}
font-family:verdana,arial,helvetica,sans-serif;
</style>';
error_reporting(0);
$word=$_GET["libristerm"];
$request = 'http://libris.kb.se/xsearch?query='.$word.'&format=mods';
$xml = simplexml_load_file($request);
$Base = $xml->modsCollection;

if (empty($Base->mods)){
//do nada
}else{
echo "<h2>LIBRIS Results<br><i>National union catalog</i></h2><ol>";
$x = "1";
foreach ($Base->mods as $item) {
echo "<li><ahref=http://libris.kb.se/hitlist?d=libris&q=";
echo $word;
echo "&f=simp&spell=true&hist=true&p=1 STYLE='text-decoration: none;'>";
echo $item->titleInfo->title;
echo "</a> ";
echo $item->name->namePart;
echo "</li>";
$x++;
}
echo "</ol><divalign=right><br /><a href=http://libris.kb.se/hitlist?d=libris&q
=$word&f=simp&spell=true&hist=true&p=1>View results in LIBRIS</a></div>";
}
?>

http://libris.kb.se/xsearch?database=swepub&query=agriculture+economy&format=mods

//Start Swepub
$SWErequest = 'http://libris.kb.se/xsearch?database=swepub&query='.$word.'&format=mods';
$SWExml = simplexml_load_file($SWErequest);
$SWEBase = $SWExml->modsCollection;
if (empty($SWEBase->mods)){
//do nada
}else{
echo "<h2>SwePub - Träfflista</h2><ol>";
$SWEx = "1";
foreach ($SWEBase->mods as $SWEitem) {
echo "<li><ahref=";
echo $SWEitem->identifier;
echo " STYLE='text-decoration: none;'>";
echo $SWEitem->titleInfo->title;
echo "</a> ";

$author_array = array();
foreach ($SWEitem->name as $SWEau){
array_push($author_array, $SWEau->namePart);
}
$au_count = count($author_array);
if ($au_count >= 2){
echo "$author_array[0] et al";
}else{
echo "$author_array[0]";
}
echo "</li>";
$SWEx++;
}
echo "</ol><divalign=right><br /><a href=http://swepub.kb.se/hitlist?d=swepub&q=$word&f=simp&spell=true&hist=
true&p=1>Till träfflista i SwePub</a></div>";
}
?>

http://uppsok.libris.kb.se/sru/uppsok?&operation=searchRetrieve&query=%22information+retrieval%22&maximumRecords=10&recordSchema=dc&x-render-output=xml

<?php
error_reporting(0);
$word=$_GET["uppsokterm"];
$request = "http://uppsok.libris.kb.se/sru/uppsok?&operation=searchRetrieve&query=%22$word%22&maximumRecords=10&recordSchema=dc&x-render-output=xml";
$Base = $xml->records;
if (empty($Base->record)){
//Wecouldsaysomething … men nej
}else{
echo "<h2>Uppsök <br><i>Uppsatser & Examensarbeten</i></h2><ol>";

$x = "1";
foreach ($Base->record as $item) {
echo "<li><ahref=";
echo $item->recordData->dc->identifier;
echo " STYLE='text-decoration: none;'>";
echo $item->recordData->dc->title;
echo "</a> ";
echo $item->recordData->dc->creator;
echo "</li>";
$x++;
}
echo "</ol><divalign=right><br /><a href=http://uppsok.libris.kb.se/sru/uppsok?query=anywhere+all+%22$word%22&maximumRecords=25&stylesheet=arkivx-hitlist.xsl&operation=searchRetrieve&recordSchema=dc&startRecord=1>Till
träfflista i Uppsök</a></div>";
}
?>

http://samsok.libris.kb.se/X?op=login_request&user_name=UID&user_password=PW

http://samsok.libris.kb.se/X?op=find_request&wait_flag=Y&find_request_command=WRD=%28america%29&find_base_001=LIB32223&session_id=GK9TA5RGP39F2THRDJI6X1VH2G4BBP6QEXNEMT47FLJIFRLCDQ

new Ajax.Updater(’metalib', '/php/metalib_e.php', { method: 'get', success: ’metalib',
failure: 'errors', parameters: {name: searchword} });

<?php
//Turnofferrorreporting
error_reporting(0);
include ’/file_outside_webroot/with/user/credentials.php';
$wrd = $_GET['name'];
$newrd = str_replace('?undefined', '', $wrd);
$query_string = 'SEARCH_ANY=' . urlencode($newrd) . '';
$dom = new DomDocument();
$dom->load("http://samsok.libris.kb.se/X?op=login_request&user_name=$mluid&user_
password=$mlpw");
$sessions = $dom->getElementsByTagName("session_id");
foreach($sessions as $session) {
$session_id = $session->textContent;

$xmlDoc = new DOMDocument();
$xmlDoc->load("http://samsok.libris.kb.se/X?op=find_request&wait_flag=Y&find_req
uest_command=WRD=($newrd)&find_base_001=LIB40723&find_base_001=LIB39584&
session_id=$session_id");
$searchNode = $xmlDoc->getElementsByTagName( "base_info" );
echo"<h2>Metasearch</h2><br /> Results from metasearch via Sam
sök</i><ul>";
foreach( $searchNode as $searchNode )
{
$xmlDate = $searchNode->getElementsByTagName( "no_of_documents" );
$count = ltrim($valueDate = $xmlDate->item(0)->nodeValue, "0");
if($count == ''){$count = "0";}
$xmlAuthorID = $searchNode->getElementsByTagName( "full_name" );
$valueAuthorID = $xmlAuthorID->item(0)->nodeValue;
$xmlSet_number = $searchNode->getElementsByTagName( "set_number" );
$valueSet_number = $xmlSet_number->item(0)->nodeValue;

echo "<li><a href=http://www.bibl.hj.se/databas/proxy.php?url=http://samsok.
libris.kb.se/V/$session_id?func=meta-3&set_number=$valueSet_number STYLE='text-d
ecoration: none;'>$valueAuthorID : $count</a></li>";
}
echo "</ul><br />";
}
?>

http://link.libris.kb.se/sfxjon?sid=ALEPH:JUL01&issn=1501-7419&sfx.response_type=simplexml

try{ var xissn=document.getElementById("ISSN");
…
if(xissn){ var spinner = '<fieldset><legend>e-JULIAservices</legend><br /><center><img src="http://julia.hj.se/exlibris/aleph/u18_1/alephe/www_f_swe/icon/ajax-loader.gif"><h2>Fetching services</h2><br /></center></fieldset>';
…
document.getElementById("eJULIA").innerHTML=spinner;

// removeallwhitespace
xissn.innerHTML = xissn.innerHTML.replace(/s/g, "" );
// remove /
var IssnRegExp = new RegExp("/","g");
xissn.innerHTML = xissn.innerHTML.replace(IssnRegExp, "");
// remove <b>
xissn.innerHTML = xissn.innerHTML.replace(/<b>/g, "" );
new Ajax.Updater('eJULIA', ’sfx.php', { method: 'get', success: 'eJULIA', failure: 'errors', parameters: {issn: xissn.innerHTML}

SFX API
<?php
//Receive ISSN from ALEPH OPAC
$issn=$_GET["issn"];
$openurl = "http://link.libris.kb.se/sfxjon?sid=ALEPH:JUL01&issn=$issn&sfx.response_type=simplexml";
//Make the call to SFX and loadresults
$xml = simplexml_load_file($openurl);
//Targets base
$Base = $xml->targets;
//HTML formating
echo "<fieldset><legend>e-JULIAlinkservices</legend><ul>";

SFX API
//Loop through results and present selected targets
foreach ($Base->target as $target) {
if($target->service_type == 'getHolding' ){
echo "<li><a href=". $proxy.$target->target_url .">Search for title in ". $target->target_public_name . "</a></li> ";
}
if($target->service_type == 'getCitedJournal' ){
echo "<li><a href=". $proxy.$target->target_url .">Search for ". $target->target_public_name . "</
a></li> ";
}
if($target->service_type == 'getFullTxt'){
echo "<li><a href=". $proxy.$target->target_url .">Fulltext available from ". $target->target_public_name . "</a></li> ";
}

SFX API
if($target->service_type == 'getAbstract'){
echo "<li><a href=". $proxy.$target->target_url .">Abstract available from ". $target->target_pub
lic_name . "</a></li> ";
}
if($target->service_type == 'getTOC'){
echo "<li><a href=". $proxy.$target->target_url .">Table of content available from ". $target->ta
rget_public_name . "</a></li> ";
}
}
?>

ticTOCs
JULIA works with flat txtfile from JISC, converts it to XML and
query it as a local service (butanyonecould …).
journalTOCsnow offer a API that you canuseinstead of downloading
a txtfile.
http://www.journaltocs.hw.ac.uk/index.php?action=api

try{
var xissn=document.getElementById("ISSN");
var x2isbn=document.getElementById("ISBN");
if(xissn){
var spinner = '<fieldset><legend>e-JULIAtjänster</legend><br /><center><img src="http://julia.hj.se/exlibris/aleph/u18_1/alephe/www_f_swe/icon/ajax-loader.gif"><h2>Hämtar tjänster</h2><br /></center></fieldset>';
}else if(x2isbn){
var spinner = '<fieldset><legend>e-JULIAtjänster</legend><br /><center><img src="http://julia.hj.se/exlibris/aleph/u18_1/alephe/www_f_swe/icon/ajax-loader.gif"><h2>Hämtar tjänster</h2><br /></center></fieldset>';
}else{
var spinner = '';
}
document.getElementById("eJULIA").innerHTML=spinner;

if(x2isbn){
new Ajax.Updater('eJULIA', ’sfx_sv.php', { method: 'get', success: 'eJULIA', failure: 'errors', parameters: {isbn: x2isbn.innerHTML}});
}
else{
xissn.innerHTML = xissn.innerHTML.replace(/s/g, "" ); // remove all whitespace
var IssnRegExp = new RegExp("/","g");
xissn.innerHTML = xissn.innerHTML.replace(IssnRegExp, ""); // remove /
xissn.innerHTML = xissn.innerHTML.replace(/<b>/g, "" ); // remove <b>
new Ajax.Updater('eJULIA', ’sfx_dev.php', { method: 'get', success: 'eJULIA', failure: 'errors', parameters: {issn: xissn.innerHTML}
});
}
}
catch(err){
}

//getSession, creates the session with the x-server, user/password
functiongetSession($u,$p){
//everything is returned in utf-8 make sure wehave a utf-8 encoding
//header('Content-Type: text/html; charset=UTF-8');
//Definecallerurl
$get_session = "http://samsok.libris.kb.se/X?op=login_request&user_name=".$u."&user_password=".$p."
";
//Make call
$xml = simplexml_load_file($get_session);
//XML base
$Base = $xml->login_response;
//Define the session variable
$session = $Base->session_id;
//functionreturns session id
return $session;
}

//Function to list all MetaLibcategories
functiongetAllCategories($session){
//Definecall URL
$get_cats = "http://samsok.libris.kb.se/X?op=retrieve_categories_request&requester_ip=193.10.208.75
&session_id=$session";
//Make call
$xml = simplexml_load_file($get_cats);
//Define XML base
$Base = $xml->retrieve_categories_response;
//Loop througheverycategory, putcategoryname in variable.
foreach ($Base->category_info as $cat){
$category_name = $cat->category_name;
echo "<fieldset><legend>".$category_name."</legend>";
//Loop throughlooking for subcategories
foreach($cat->subcategory_info as $sub){
$subcategory_name = $sub->subcategory_name;
$subcategory_count = $sub->no_bases;
$subcategory_seq = $sub->sequence;

if($subcategory_name == 'ALL'){
echo "<a href=getDBbyCat.php?sequence=".$subcategory_seq."&session=".$session."&nam
e=".$subcategory_name.">ALLA ".$category_name." databaser</a> [".ltrim($subcategory_count,0)."]<br>
";
}else{
echo "<a href=getDBbyCat.php?sequence=".$subcategory_seq."&session=".$session."&nam
e=".$subcategory_name.">".$subcategory_name."</a> [".ltrim($subcategory_count,0)."]<br> ";
}
}
echo "</fieldset>";
}
// endfunction
}

//Function to get onecategory with associatedsubcategories
functiongetOneCategory($session, $category_id){
//Get Categories
$get_cats = "http://samsok.libris.kb.se/X?op=retrieve_categories_request&requester_ip=193.10.208.75
&session_id=$session";
$xml = simplexml_load_file($get_cats);
$Base = $xml->retrieve_categories_response;
foreach ($Base->category_info as $cat){
$category_name = $cat->category_name;
if($category_name == $category_id){
echo "<fieldset><legend>".$category_name."</legend>";

foreach($cat->subcategory_info as $sub){
$subcategory_name = $sub->subcategory_name;
$subcategory_count = $sub->no_bases;
$subcategory_seq = $sub->sequence;
if($subcategory_name == 'ALL'){
echo "<a href=?sequence=".$subcategory_seq."&session=".$session.">ALLA ".$category_name." databaser</a> [".ltrim($subcategory_count,0)."]<br> ";
}else{
echo "<a href=?sequence=".$subcategory_seq."&session=".$session.">".$subcategory_na
me."</a> [".ltrim($subcategory_count,0)."]<br> ";
}
}
echo "</fieldset>";
}
}
// endfunction
}

//Get all available information for onedatabase
function getDBinfo($source_001,$session){
$get_db = "http://samsok.libris.kb.se/X?op=source_locate_request&source_locate_filter=&requester_ip
=193.10.208.75&locate_command=IDN=".$source_001."&view=customize&field=520&field=85641&session_id="
.$session."&institute=JON";
$xml = simplexml_load_file($get_db);
$Base = $xml->source_locate_response;
foreach ($Base->source_customize_info as $db_info){
$db_title = $db_info->source_info->source_short_name;
echo "<fieldset><legend>$db_title</legend> ";

foreach($Base->source_customize_info->record->datafield as $field){
//echo $field->subfield;
if($field[tag] == '520'){
$desc = $field->subfield;
}
if($field[tag] == '856'){
$url = $field->subfield;
}
}
echo "<b>Beskrivning:</b> $desc<p><b>URL:</b> $url </fieldset>";
}
//endfunction
}

functionml_search($session, $db_id, $wrd, $lang){
$do_search = "http://samsok.libris.kb.se/X?op=find_request&wait_flag=Y&find_request_command=WRD=($w
rd)&find_base_001=$db_id&session_id=$session";
$xml = simplexml_load_file($do_search);
$Base = $xml->find_response->base_info;
$doc_count = $Base->no_of_documents;
$set_number = $Base->set_number;
if($doc_count >= '1'){
if($lang == 'eng'){
$sb_url = "http://hbopac.lingonline.jonkoping.se/opac/search_result.aspx?TextFritext=$wrd";
echo "<li><ahref=$sb_url>Alsoavailable at the public library</a><br>";
}else{

$sb_url = "http://hbopac.lingonline.jonkoping.se/opac/search_result.aspx?TextFritext=$wrd";
echo "<li><ahref=$sb_url>Finns ävenpå stadsbiblioteket</a><br>";
}
}else{
if($lang =='eng'){
echo "<li>Notavailable at the public library<br>";
}else{
echo "<li>Finns inte på stadsbiblioteket<br>";
}
}
}

//Get database by category id
functiongetDBbyCat($catid,$session,$cat_name){
$get_db = "http://samsok.libris.kb.se/X?op=source_locate_request&source_locate_filter=&requester_ip
=193.10.208.75&locate_command=WFL=".$catid."&view=customize&field=85641&session_id=".$session."&institute=JON";
echo "<script>varnewwindow;
functionpoptastic(url)
{
newwindow=window.open(url,'name','toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,r
esizable=1,width=500,height=500,left = 640,top = 325');
if (window.focus) {newwindow.focus()}
}
</script><scripttype='text/javascript' src='http://193.10.208.75/exlibris/aleph/u18_1/alephe/www_f_swe/icon/prototype.js'></script>
<fieldset><legend>$cat_name</legend>";

$xml = simplexml_load_file($get_db);
$Base = $xml->source_locate_response;
//print $get_db;
foreach ($Base->source_customize_info as $source){
$source_name = $source->source_info->source_short_name;
$source_001 = $source->source_info->source_001;
$url = $source->record->datafield->subfield;
echo "<li>$source_name <a href=$url>Direkt till databas</a> | ";
echo "<a href=javascript:poptastic('getDBinfo.php?session=$session&dbid=$source_001');>Mer information</a>";
$x++;
}
echo "</fieldset>";
//endfunction
}

http://libris.kb.se/bibspell/spell?query=ammerica&key=XXX
http://api.libris.kb.se/bibspell/

find-b-list-head-jul01
<div id="spell"></div>
<script language="javascript" type="text/javascript" src=”spell.js">
</script>

Spell.js använder prototype.js
var TITLE = document.URL;
var where_is_start=TITLE.indexOf('request');
var where_is_end=TITLE.indexOf('&find_code');
var new_start=where_is_start+8;
var searchword = TITLE.slice(new_start, where_is_end);
if(searchword){
var spinner = '<fieldset><legend>Did you mean ...?</legend><br />
<center><img src=”ajax-loader.gif"><h2>Looking for suggestions. Please wait.</h2>
</center></fieldset>';
}else{
var spinner = '';
}
document.getElementById("spell").innerHTML=spinner;
new Ajax.Updater('spell', ’ spell.php',
{ method: 'get', success: 'spell', failure: 'errors', parameters:
{URL: searchword}});

Spell.php
<?php
include ’passwords from outside the webroot';
echo "<fieldset><legend>Did you mean ...?</legend><center><h3>";
$term = $_GET['URL'];
$clean_terms = urldecode($term);
$request = 'http://libris.kb.se/bibspell/spell?query='.$term.'&key=XXX';
$bibspell = simplexml_load_file($request);
$sugcheck = $bibspell->suggestion->term;
if($sugcheck){
foreach($bibspell->suggestion->term as $suggestion){
$suggest .= " $suggestion";
$suggest2 .= "$suggestion+";
}

Spell.php
echo "You searched for <i><font color=red>$clean_terms</font></i><br/><br />LIBR
IS suggests you try <a href=http://julia.hj.se/F/?func=find-b&request=$suggest2&
find_code=WRD&adjacent=N&x=53&y=1&con_lng=eng>$suggest</a><br /><br />";
}else{
echo "LIBRIS has no suggestions for you.<br /><br />";
}

Spell.php
$request = 'http://search.yahooapis.com/WebSearchService/V1/spellingSuggestion?a
ppid='.$yahoo_key.'&query='.$term.'';
$description = $xml->Result;
if (empty($xml->Result)){
echo "<p>Yahoo! has no suggestion for you";
}else{

Spell.php
foreach ($xml->Result as $suggestion) {
$suggest = $xml->Result;
$suggest2 = http_build_query($suggest);
$suggest3 = str_replace('0=','',$suggest2);
echo "<p>Yahoo! suggests you try <a href=http://julia.hj.se/F/?func=find-b&reque
st=$suggest3&find_code=WRD&adjacent=N&x=53&y=1&con_lng=eng>$suggest</a>";
}
}
echo '</h3><br /><div align="right"><a href="http://developer.yahoo.com/">
<img src="http://julia.hj.se/exlibris/aleph/u18_1/alephe/www_f_tst/icon/websrv_1
20_1.gif" border="0">
</a><br /><a href="http://libris.kb.se"><img src=http://julia.hj.se/exlibris/ale
ph/u18_1/alephe/www_f_tst/icon/libris_logotyp.gif border=0></a></div>
</center></fieldset>';
?>

<linkrel="alternate" type="application/rdf+xml" title="RDF Representation" href="http://libris.kb.se/data/bib/7156538?format=application%2Frdf%2Bxml" >

Introduktion till API:er, webbtjänster &
att integrera LIBRIS tjänster i OPAC
[DETTA ÄR SLUTET]
Daniel Forsman
Chalmers bibliotek
20 maj 2010

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Introduktion till API:er, webbtjänster & att integrera LIBRIS tjänster i OPAC

by Daniel Forsman on May 20, 2010

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Introduktion till API:er, webbtjänster & att integrera LIBRIS tjänster i OPAC — Presentation Transcript