/*
-** $Id: pz2.js,v 1.8 2007-04-18 03:42:30 quinn Exp $
+** $Id: pz2.js,v 1.11 2007-04-20 13:56:20 jakub Exp $
** pz2.js - pazpar2's javascript client library.
*/
// at least one callback required
if ( !paramArray )
- throw new Error("An array with parameters has to be suplied when instantiating a class");
+ throw new Error("An array with parameters has to be suplied when instantiating a class");
+
+ //supported pazpar2's protocol version
+ __myself.suppProtoVer = '1';
+ __myself.errorHandler = paramArray.errorhandler || null;
// function callbacks
__myself.statCallback = paramArray.onstat || null;
// error handling
$(document).ajaxError(
- function (request, settings, exception) {
- if ( settings.responseXML && settings.responseXML.getElementsByTagName("error") )
- throw new Error( settings.responseXML.getElementsByTagName("error")[0].childNodes[0].nodeValue);
+ function (ajaxError, xhr, reqSettings, prevException)
+ {
+ if ( xhr.responseXML && xhr.responseXML.getElementsByTagName("error").length )
+ {
+ var errMsg = xhr.responseXML.getElementsByTagName("error")[0].childNodes[0].nodeValue;
+ var errCode = xhr.responseXML.getElementsByTagName("error")[0].getAttribute("code");
+
+ var err = new Error(errMsg);
+ err.code = errCode;
+
+ if (__myself.errorHandler) {
+ __myself.errorHandler(err);
+ }
+ else {
+ throw err;
+ }
+ }
+ // ensure the errors are propagated
+ else if (prevException != undefined ) {
+ throw prevException;
+ }
+ else {
+ throw new Error("XMLHttpRequest error. STATUS: " + xhr.status + " STATUS TEXT: " + xhr.statusText);
+ }
});
// auto init session?
init: function(keepAlive)
{
if ( keepAlive < __myself.keepAlive )
- __myself.keepAlive = keepAlive;
+ __myself.keepAlive = keepAlive;
$.get( __myself.pz2String,
{ "command": "init" },
function(data) {
if ( data.getElementsByTagName("status")[0].childNodes[0].nodeValue == "OK" ) {
+ if ( data.getElementsByTagName("protocol")[0].childNodes[0].nodeValue != __myself.suppProtoVer )
+ throw new Error("Server's protocol not supported by the client");
__myself.initStatusOK = true;
__myself.sessionID = data.getElementsByTagName("session")[0].childNodes[0].nodeValue;
setTimeout(__myself.ping, __myself.keepAlive);
}
else {
var nodeName = hits[i].childNodes[j].nodeName;
- var nodeText = hits[i].childNodes[j].firstChild.nodeValue;
+ var nodeText = hits[i].childNodes[j].firstChild.nodeValue;
show.hits[i][nodeName] = nodeText;
}
}
var delay = __myself.showTime;
if (__myself.showCounter > __myself.showFastCount)
delay *= 2;
- alert(delay);
if (activeClients > 0)
__myself.showTimer = setTimeout("__myself.show()", delay);
}