Key off anti-virus name and collect signatures, unique signature count and total detection

mr_composite_scans.js

var map = function () { 
    this.scans.virustotal.report.results.scanners.forEach( 
        function (z) { 
             emit(z.antivirus, {signatures: [z.signature] , count: 1, total: 0}); 
        } 
    ); 
} 

var reduce = function (key, values) { 
    var count = 0; 
    var total = 0; 
    var sigs = []; 
    values.forEach( 
		function(z){ 	
            total +=  z.count; 
            z.signatures.forEach(
        		function(y) {
        			if(y != "") { sigs.push(y); }
        		}
    		)
        } 
    ) 

    var newArray=new Array();
    label:for(var i=0; i<sigs.length;i++ ) {  
        for(var j=0; j<newArray.length;j++ ) {
            if(newArray[j]==sigs[i]) 
                continue label;
        }
        newArray[newArray.length] = sigs[i];
    }
    
    count = newArray.length;
    return { count: count, total: total, signatures: newArray }; 
} 

db.malware.mapReduce(map,reduce, {out: "composite_scans" });