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FacetServiceBuilder.js
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FacetServiceBuilder.js
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var Class = require('../ext/Class');
var FacetServiceUtils = require('./FacetServiceUtils');
var FacetServiceFn = require('./facet_service/FacetServiceFn');
var FacetServiceClientIndex = require('./facet_service/FacetServiceClientIndex');
var LiteralPreference = require('../sparql/LiteralPreference');
var LookupServiceUtils = require('../sponate/LookupServiceUtils');
var FacetServiceTransformConcept = require('./facet_service/FacetServiceTransformConcept');
var ListServiceTransformItem = require('../service/list_service/ListServiceTransformItem');
var ListServiceTransformItems = require('../service/list_service/ListServiceTransformItems');
var MappedConceptUtils = require('../sponate/MappedConceptUtils');
var LabelUtils = require('../sparql/LabelUtils');
var KeywordSearchUtils = require('../sparql/search/KeywordSearchUtils');
var HashMap = require('../util/collection/HashMap');
var FacetServiceBuilder = Class.create({
initialize: function(facetService, defaultSparqlService) {
this.facetService = facetService;
this.defaultSparqlService = defaultSparqlService;
},
create: function() {
return this.facetService;
},
labelConfig: function(literalPreference) {
literalPreference = literalPreference || new LiteralPreference();
this.labelConfigLabels(literalPreference);
this.labelConfigFilter(literalPreference);
return this;
},
tagFn: function(tagFn) {
this.facetService = new FacetServiceFn(this.facetService, function(listService) {
var r = new ListServiceTransformItem(listService, tagFn);
return r;
});
return this;
},
pathToTags: function(pathToTags, mapAttr) {
pathToTags = pathToTags || new HashMap();
mapAttr = mapAttr || 'tags';
this.facetService = new FacetServiceFn(this.facetService, function(listService) {
var r = new ListServiceTransformItems(listService, function(entries) {
entries.forEach(function(entry) {
var val = entry.val;
var path = val.path;
var tags = pathToTags.get(path);
if(!tags) {
tags = {};
pathToTags.put(path, tags);
}
val[mapAttr] = tags;
});
return entries;
});
return r;
});
return this;
},
// labelLookupService: function(lookupServiceNodeLabel) {
//
// },
labelConfigFilter: function(literalPreference) {
// TODO: Make the search function configurable
var fnTransformSearch = function(searchString) {
var r;
if(searchString) {
var relation = LabelUtils.createRelationLiteralPreference(literalPreference);
// TODO Make it configurable to whether scan URIs too (the true argument)
r = KeywordSearchUtils.createConceptRegex(relation, searchString, true);
//var result = sparql.KeywordSearchUtils.createConceptBifContains(relation, searchString);
} else {
r = null;
}
return r;
};
this.facetService = new FacetServiceTransformConcept(this.facetService, fnTransformSearch);
return this;
},
labelConfigLabels: function(literalPreference, labelAttrName) {
labelAttrName = labelAttrName || 'labelInfo';
var self = this;
this.facetService = new FacetServiceFn(this.facetService, function(listService) {
var r = new ListServiceTransformItems(listService, function(entries) {
var mappedConcept = MappedConceptUtils.createMappedConceptLiteralPreference(literalPreference);
var lookupServiceNodeLabels = LookupServiceUtils.createLookupServiceMappedConcept(self.defaultSparqlService, mappedConcept);
var properties = entries.map(function(entry) {
return entry.val.property;
});
//console.log('Properties: ' + JSON.stringify(properties));
var s = lookupServiceNodeLabels.lookup(properties).then(function(map) {
entries.forEach(function(entry) {
entry.val[labelAttrName] = map.get(entry.val.property);
});
return entries;
});
return s;
});
return r;
});
return this;
},
// NOTE: A label config must already have been provided before calling this function
index: function() {
var filterSupplierFn = function(searchString) {
var result;
if(searchString != null) {
var re = new RegExp(searchString, 'mi');
result = function(entry) {
//var key = entry.key;
//var labelInfo = fnLabelInfo(key);
var labelInfo = entry.val.labelInfo || { id: entry.key.getUri(), displayLabel: entry.key.getUri(), hiddenLabels: []};
//console.log('labelInfo' + JSON.stringify(entry));
var m1 = re.test(labelInfo.id);
var m2 = m1 || re.test(labelInfo.displayLabel);
var m3 = m2 || (labelInfo.hiddenLabels && labelInfo.hiddenLabels.some(function(x) { return re.test(x); }));
return m3;
};
} else {
result = function(entry) { return true; };
}
return result;
};
this.facetService = new FacetServiceClientIndex(this.facetService, filterSupplierFn, 100);
return this;
}
});
FacetServiceBuilder.core = function(sparqlService, facetConfig) {
var facetService = FacetServiceUtils.createFacetService(sparqlService, facetConfig);
var result = new FacetServiceBuilder(facetService, sparqlService);
return result;
};
module.exports = FacetServiceBuilder;