bm.ts

export class BinaryMessage {

        Buffer: ArrayBuffer;
        private header: Uint8Array
    
        GetMessage(buffer: ArrayBuffer): any {
            let headerLen = 8;
            let header = new Uint8Array(buffer, 0, headerLen);
            
            let payloadLength = ThorIO.Client.Utils.arrayToLong(header);
    

            let message = new Uint8Array(buffer, headerLen, payloadLength);

            let blobOffset = headerLen + payloadLength;
          
            let messageBuffer = new Uint8Array(buffer, blobOffset, buffer.byteLength - blobOffset);

            return String.fromCharCode.apply(null, new Uint16Array(message));
        }

        
        constructor(message: string, public arrayBuffer: ArrayBuffer) {
            this.header = new Uint8Array(ThorIO.Client.Utils.longToArray(message.length));
            this.Buffer = this.joinBuffers(this.joinBuffers(
                this.header,
                ThorIO.Client.Utils.stingToBuffer(message)),
                arrayBuffer);
        }

        private joinBuffers(a: ArrayBuffer, b: ArrayBuffer): ArrayBuffer {

            let newBuffer = new Uint8Array(a.byteLength + b.byteLength);
            newBuffer.set(new Uint8Array(a), 0);
            newBuffer.set(new Uint8Array(b), a.byteLength);
            return newBuffer.buffer;

        }

       

    }