@iotize/tap/esm2015/client/impl/lib/converter/body/pipe-converter.js

IoTize Device client for Javascript

export class PipeConverterBuilder {
    constructor(aliases = {}) {
        this.aliases = aliases;
    }
    pipe(converter) {
        return new PipeConverter([], this.aliases).pipe(converter);
    }
}
/**
 * Pipe multiple converter one after another
 */
export class PipeConverter {
    constructor(converters, aliases = {}) {
        this.converters = converters;
        this.aliases = aliases;
    }
    decode(body) {
        let output = body;
        for (let converter of this.converters) {
            if (typeof converter == 'function') {
                output = converter(output);
            }
            else {
                output = converter.decode(output);
            }
        }
        return output;
    }
    encode(value) {
        let output = value;
        const reversedConverters = [...this.converters].reverse();
        for (let converter of reversedConverters) {
            if (typeof converter == 'function') {
                output = converter(output);
            }
            else {
                output = converter.encode(output);
            }
        }
        return output;
    }
    pipe(converter) {
        if (typeof converter === 'string') {
            if (!(converter in this.aliases)) {
                throw new Error(`Illegal argument, missing converter id: ${converter}`);
            }
            converter = this.aliases[converter];
        }
        this.converters.push(converter);
        return this;
    }
    static pipe(converter) {
        return new PipeConverter([converter], {});
    }
}
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