protected void setUpContext()

in hollow-explorer-ui/src/main/java/com/netflix/hollow/explorer/ui/pages/ShowAllTypesPage.java [45:112]
61 lines of code
16 McCabe index (conditional complexity)

    protected void setUpContext(HttpServletRequest req, HollowUISession session, VelocityContext ctx) {
        
        String sort = req.getParameter("sort") == null ? "primaryKey" : req.getParameter("sort");
        
        List<TypeOverview> typeOverviews = new ArrayList<TypeOverview>();
        
        for(HollowTypeReadState typeState : ui.getStateEngine().getTypeStates()) {
            String typeName = typeState.getSchema().getName();
            BitSet populatedOrdinals = typeState.getPopulatedOrdinals();
            int numRecords = populatedOrdinals == null ? Integer.MIN_VALUE : populatedOrdinals.cardinality();
            int numHoles = populatedOrdinals == null ? Integer.MIN_VALUE : populatedOrdinals.length()-populatedOrdinals.cardinality();
            long approxHoleFootprint = typeState.getApproximateHoleCostInBytes();
            PrimaryKey primaryKey = typeState.getSchema().getSchemaType() == SchemaType.OBJECT ? ((HollowObjectSchema)typeState.getSchema()).getPrimaryKey() : null;
            long approxHeapFootprint = typeState.getApproximateHeapFootprintInBytes();
            HollowSchema schema = typeState.getSchema();
            int numShards = typeState.numShards();
            
            typeOverviews.add(new TypeOverview(typeName, numRecords, numHoles, approxHoleFootprint, approxHeapFootprint, primaryKey, schema, numShards));
        }

        switch(sort) {
        case "typeName":
            Collections.sort(typeOverviews, new Comparator<TypeOverview>() {
                public int compare(TypeOverview o1, TypeOverview o2) {
                    return o1.getTypeName().compareTo(o2.getTypeName());
                }
            });
            break;
        case "numRecords":
            Collections.sort(typeOverviews, new Comparator<TypeOverview>() {
                public int compare(TypeOverview o1, TypeOverview o2) {
                    return Integer.compare(o2.getNumRecordsInt(), o1.getNumRecordsInt());
                }
            });
            break;
        case "numHoles":
                typeOverviews.sort((o1, o2) -> Integer.compare(o2.getNumHolesInt(), o1.getNumHolesInt()));
                break;
        case "holeSize":
                typeOverviews.sort((o1, o2) -> Long.compare(o2.getApproxHoleFootprintLong(), o1.getApproxHoleFootprintLong()));
                break;
        case "heapSize":
            Collections.sort(typeOverviews, new Comparator<TypeOverview>() {
                public int compare(TypeOverview o1, TypeOverview o2) {
                    return Long.compare(o2.getApproxHeapFootprintLong(), o1.getApproxHeapFootprintLong());
                }
            });
            break;
        case "numShards":
            typeOverviews.sort((o1, o2) -> Integer.compare(o2.getNumShardsInt(), o1.getNumShardsInt()));
            break;
        default:
            Collections.sort(typeOverviews, new Comparator<TypeOverview>() {
                public int compare(TypeOverview o1, TypeOverview o2) {
                    if(!"".equals(o1.getPrimaryKey()) && "".equals(o2.getPrimaryKey()))
                        return -1;
                    if("".equals(o1.getPrimaryKey()) && !"".equals(o2.getPrimaryKey()))
                        return 1;
                    
                    return o1.getTypeName().compareTo(o2.getTypeName()); 
                }
            });
        }

        ctx.put("totalHoleFootprint", totalApproximateHoleFootprint(typeOverviews));
        ctx.put("totalHeapFootprint", totalApproximateHeapFootprint(typeOverviews));
        ctx.put("typeOverviews", typeOverviews);
    }