From: Jakub Skoczen Date: Thu, 14 Feb 2008 12:20:24 +0000 (+0000) Subject: Modified XML parsing. Bugs #2066 #2098 X-Git-Tag: PAZPAR2.1.0.6~16 X-Git-Url: http://jsfdemo.indexdata.com/cgi-bin?a=commitdiff_plain;h=55247e2dae0498e0fb9d4aa6e4f3083621912487;p=pazpar2-moved-to-github.git Modified XML parsing. Bugs #2066 #2098 Simplified record method. --- diff --git a/js/pz2.js b/js/pz2.js index 4d7f784..21990d0 100644 --- a/js/pz2.js +++ b/js/pz2.js @@ -1,5 +1,5 @@ /* -** $Id: pz2.js,v 1.68 2007-12-20 13:09:40 jakub Exp $ +** $Id: pz2.js,v 1.69 2008-02-14 12:20:24 jakub Exp $ ** pz2.js - pazpar2's javascript client library. */ @@ -85,6 +85,9 @@ var pz2 = function ( paramArray ) // current query this.currQuery = null; + //current raw record offset + this.currRecOffset = null; + //timers this.statTime = paramArray.stattime || 1000; this.statTimer = null; @@ -416,37 +419,9 @@ pz2.prototype = }; // parse all the first-level nodes for all tags var hits = data.getElementsByTagName("hit"); - var hit = new Array(); - for (i = 0; i < hits.length; i++) { - show.hits[i] = new Array(); - show.hits[i]['location'] = new Array(); - var locCount = 0; - for ( j = 0; j < hits[i].childNodes.length; j++) { - if ( hits[i].childNodes[j].nodeType - == Node.ELEMENT_NODE ) { - if (hits[i].childNodes[j].nodeName - == 'location') { - var locNode = hits[i].childNodes[j]; - var id = locNode.getAttribute('id'); - show.hits[i]['location'][locCount] = { - "id": locNode.getAttribute("id"), - "name": locNode.getAttribute("name") - }; - locCount++; - } - else { - var nodeName = - hits[i].childNodes[j].nodeName; - var nodeText = 'ERROR' - if ( hits[i].childNodes[j].firstChild ) - nodeText = - hits[i].childNodes[j] - .firstChild.nodeValue; - show.hits[i][nodeName] = nodeText; - } - } - } - } + for (i = 0; i < hits.length; i++) + show.hits[i] = Element_parseChildNodes(hits[i]); + context.showCounter++; var delay = context.showTime; if (context.showCounter > context.showFastCount) @@ -457,7 +432,7 @@ pz2.prototype = context.show(); }, delay); - + global_show = show; context.showCallback(show); } else @@ -466,127 +441,70 @@ pz2.prototype = } ); }, - record: function(id, offset, pass_params) + record: function(id, offset, syntax, handler) { // we may call record with no previous search if in proxy mode - if( !this.searchStatusOK && this.useSessions) + if(!this.searchStatusOK && this.useSessions) throw new Error( 'Pz2.js: record command has to be preceded with a search command.' ); - var params = {}; - if ( pass_params != undefined ) - params = pass_params; - - var callback; - if ( params.callback != undefined ) { - callback = params.callback; - } else { - callback = this.recordCallback; - } - var handle; - if ( params['handle'] == undefined ) - handle = {}; - else - handle = params['handle']; - if( id !== undefined ) this.currRecID = id; - var context = this; - var request = new pzHttpRequest(this.pz2String, this.errorHandler); - - var recordParams = { "command": "record", - "session": this.sessionID, - "id": this.currRecID }; + var recordParams = { + "command": "record", + "session": this.sessionID, + "id": this.currRecID + }; - if (offset !== undefined) { + this.currRecOffset = null; + if (offset != undefined) { recordParams["offset"] = offset; - } - - if (params.syntax != undefined) { - recordParams['syntax'] = params.syntax; + this.currRecOffset = offset; } - this.currRecOffset = offset; + if (syntax != undefined) + recordParams['syntax'] = syntax; + + //overwrite default callback id needed + var callback = this.recordCallback; + var args = undefined; + if (handler != undefined) { + callback = handler['callback']; + args = handler['args']; + } + + var context = this; + var request = new pzHttpRequest(this.pz2String, this.errorHandler); request.get( recordParams, function(data) { var recordNode; - var record = new Array(); - record['xmlDoc'] = data; - if (context.currRecOffset !== undefined) { + var record; + //raw record + if (context.currRecOffset !== null) { + record = new Array(); + record['xmlDoc'] = data; record['offset'] = context.currRecOffset; - callback(record, handle); + callback(record, args); + //pz2 record } else if ( recordNode = data.getElementsByTagName("record")[0] ) { // if stylesheet was fetched do not parse the response if ( context.xslDoc ) { + record = new Array(); + record['xmlDoc'] = data; + record['xslDoc'] = context.xslDoc; record['recid'] = recordNode.getElementsByTagName("recid")[0] .firstChild.nodeValue; - record['xslDoc'] = - context.xslDoc; + //parse record } else { - for ( i = 0; i < recordNode.childNodes.length; i++) { - if ( recordNode.childNodes[i].nodeType - == Node.ELEMENT_NODE - && recordNode.childNodes[i].nodeName - != 'location' ) { - var nodeName = - recordNode.childNodes[i].nodeName; - var nodeText = ''; - if (recordNode.childNodes[i].firstChild) - nodeText = recordNode.childNodes[i] - .firstChild.nodeValue; - record[nodeName] = nodeText; - } - } - // the location might be empty!! - var locationNodes = - recordNode.getElementsByTagName("location"); - record["location"] = new Array(); - for ( i = 0; i < locationNodes.length; i++ ) { - record["location"][i] = { - "id": locationNodes[i].getAttribute("id"), - "name": locationNodes[i].getAttribute("name") - }; - - for (j = 0; - j < locationNodes[i].childNodes.length; - j++) { - if ( locationNodes[i].childNodes[j].nodeType - == Node.ELEMENT_NODE ) { - var nodeName = - locationNodes[i].childNodes[j].nodeName; - var nodeText = ''; - if (locationNodes[i].childNodes[j] - .firstChild) - nodeText = - locationNodes[i].childNodes[j] - .firstChild.nodeValue; - // this is stupid - if (nodeName == 'md-subject') { - if (record["location"][i][nodeName]) { - record["location"][i][nodeName] - .push(nodeText) - } else { - record["location"][i][nodeName] - = new Array(); - record["location"][i][nodeName] - .push(nodeText) - } - } else { - record["location"][i][nodeName] - = nodeText; - } - } - } - } - } - - callback(record, handle); + record = Element_parseChildNodes(recordNode); + } + callback(record, args); } else context.throwError('Record failed. Malformed WS resonse.', @@ -996,5 +914,44 @@ Element_getTextContent = function (DOM_Element) } } +Element_parseChildNodes = function (node) +{ + var parsed = {}; + var hasChildElems = false; + + if (node.hasChildNodes()) { + var children = node.childNodes; + for (var i = 0; i < children.length; i++) { + var child = children[i]; + if (child.nodeType == Node.ELEMENT_NODE) { + hasChildElems = true; + var nodeName = child.nodeName; + if (!(nodeName in parsed)) + parsed[nodeName] = []; + parsed[nodeName].push(Element_parseChildNodes(child)); + } + } + } + + if (node.hasAttributes()) { + var attrs = node.attributes; + for (var i = 0; i < attrs.length; i++) { + var attrName = '@' + attrs[i].nodeName; + var attrValue = attrs[i].nodeValue; + parsed[attrName] = attrValue; + } + } + + // if no nested elements, get text content + if (node.hasChildNodes() && !hasChildElems) { + if (node.hasAttributes()) + parsed['textContent'] = node.firstChild.nodeValue; + else + parsed = node.firstChild.nodeValue; + } + + return parsed; +} + /* do not remove trailing bracket */ }