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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
const defineProperty = function(chain, cValue, middleware = undefined) { let aborted = false; const mustAbort = function(v) { if ( aborted ) { return true; } aborted = (v !== undefined && v !== null) && (cValue !== undefined && cValue !== null) && (typeof v !== typeof cValue); return aborted; }; // https://github.com/uBlockOrigin/uBlock-issues/issues/156 // Support multiple trappers for the same property. // // trapProp is used to trap a single property within an object. const trapProp = function(owner, prop, configurable, handler) { if ( handler.init(owner[prop]) === false ) { return; } const odesc = Object.getOwnPropertyDescriptor(owner, prop); let prevGetter, prevSetter; if ( odesc instanceof Object ) { if ( odesc.configurable === false ) { return; } if ( odesc.get instanceof Function ) { prevGetter = odesc.get; } if ( odesc.set instanceof Function ) { prevSetter = odesc.set; } } Object.defineProperty(owner, prop, { configurable, //When a property is accessed (get), the custom getter function is called. get() { if ( prevGetter !== undefined ) { prevGetter(); } return handler.getter(); // cValue }, // When a property is modified (set), the custom setter function is called. set(a) { if ( prevSetter !== undefined ) { prevSetter(a); } handler.setter(a); } }); }; // trapChain is used to recursively trap properties along a chain of properties (e.g., object1.object2.property). const trapChain = function(owner, chain) { const pos = chain.indexOf('.'); if ( pos === -1 ) { trapProp(owner, chain, true, { v: undefined, init: function(v) { if ( mustAbort(v) ) { return false; } this.v = v; return true; }, getter: function() { return cValue; }, setter: function(a) { // Middleware is called when a property is set, allowing additional processing or validation of the new value. if (middleware instanceof Function) { cValue = a; middleware(a); } else { if ( mustAbort(a) === false ) { return; } cValue = a; } } }); return; } const prop = chain.slice(0, pos); const v = owner[prop]; chain = chain.slice(pos + 1); if ( v instanceof Object || typeof v === 'object' && v !== null ) { trapChain(v, chain); return; } trapProp(owner, prop, true, { v: undefined, init: function(v) { this.v = v; return true; }, getter: function() { return this.v; }, setter: function(a) { this.v = a; if ( a instanceof Object ) { trapChain(a, chain); } } }); }; trapChain(window, chain); }