awscdk-construct-scte-scheduler
Version:
AWS CDK Construct for scheduling SCTE-35 events using the MediaLive schedule API
39 lines (38 loc) • 1.52 kB
JavaScript
import { NormalizedSchema } from "@smithy/core/schema";
import { fromUtf8, toUtf8 } from "@smithy/util-utf8";
import { FromStringShapeDeserializer } from "./FromStringShapeDeserializer";
export class HttpInterceptingShapeDeserializer {
constructor(codecDeserializer, codecSettings) {
this.codecDeserializer = codecDeserializer;
this.stringDeserializer = new FromStringShapeDeserializer(codecSettings);
}
setSerdeContext(serdeContext) {
this.stringDeserializer.setSerdeContext(serdeContext);
this.codecDeserializer.setSerdeContext(serdeContext);
this.serdeContext = serdeContext;
}
read(schema, data) {
const ns = NormalizedSchema.of(schema);
const traits = ns.getMergedTraits();
const toString = this.serdeContext?.utf8Encoder ?? toUtf8;
if (traits.httpHeader || traits.httpResponseCode) {
return this.stringDeserializer.read(ns, toString(data));
}
if (traits.httpPayload) {
if (ns.isBlobSchema()) {
const toBytes = this.serdeContext?.utf8Decoder ?? fromUtf8;
if (typeof data === "string") {
return toBytes(data);
}
return data;
}
else if (ns.isStringSchema()) {
if ("byteLength" in data) {
return toString(data);
}
return data;
}
}
return this.codecDeserializer.read(ns, data);
}
}