@hms-networks/kolibri-js-core
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Kolibri Core library containing common kolibri models and utils
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JavaScript
/*
* Copyright 2021 HMS Industrial Networks AB
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http: //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { constants } from '../../common/constant';
import { errorcode, KolibriError } from '../../common/errorcode';
export class OpcodeDecoder {
constructor(opcodes, opcodeCompatMapper) {
this.opcodes = opcodes;
this.opcodeCompatMapper = opcodeCompatMapper;
this.opcodesMap = new Map();
this.opcodes.forEach((opcode) => {
this.opcodesMap.set(opcode.getCode(), opcode);
});
}
getOpcode(code) {
const opcode = this.opcodesMap.get(code);
if (!opcode) {
throw new KolibriError(errorcode.INVALID_OPCODE);
}
return opcode;
}
getNameFromOpcode(opcode) {
return this.getOpcode(opcode).getName();
}
decode(buffer) {
const opcode = this.getOpcode(buffer[0]);
const kpo = opcode.decode(buffer);
return this.opcodeCompatMapper.map(kpo, constants.INCOMING_DIRECTION);
}
encode(kpo) {
const opcode = this.getOpcode(kpo.opcode);
let compatKpo = this.opcodeCompatMapper.map(kpo, constants.OUTGOING_DIRECTION);
return opcode.encode(compatKpo);
}
}
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