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FileInfo.js
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FileInfo.js
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/*-
*
* Hedera JavaScript SDK
*
* Copyright (C) 2020 - 2023 Hedera Hashgraph, LLC
*
* 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 FileId from "./FileId.js";
import Timestamp from "../Timestamp.js";
import Long from "long";
import KeyList from "../KeyList.js";
import LedgerId from "../LedgerId.js";
import * as HashgraphProto from "@hashgraph/proto";
const { proto } = HashgraphProto;
/**
* Response when the client sends the node CryptoGetInfoQuery.
*/
export default class FileInfo {
/**
* @private
* @param {object} props
* @param {FileId} props.fileId
* @param {Long} props.size
* @param {Timestamp} props.expirationTime
* @param {boolean} props.isDeleted
* @param {KeyList} props.keys
* @param {string} props.fileMemo
* @param {LedgerId|null} props.ledgerId
*/
constructor(props) {
/**
* The ID of the file for which information is requested.
*
* @readonly
*/
this.fileId = props.fileId;
/**
* Number of bytes in contents.
*
* @readonly
*/
this.size = props.size;
/**
* The current time at which this account is set to expire.
*
* @readonly
*/
this.expirationTime = props.expirationTime;
/**
* True if deleted but not yet expired.
*
* @readonly
*/
this.isDeleted = props.isDeleted;
/**
* One of these keys must sign in order to delete the file.
* All of these keys must sign in order to update the file.
*
* @readonly
*/
this.keys = props.keys;
this.fileMemo = props.fileMemo;
this.ledgerId = props.ledgerId;
Object.freeze(this);
}
/**
* @internal
* @param {HashgraphProto.proto.FileGetInfoResponse.IFileInfo} info
* @returns {FileInfo}
*/
static _fromProtobuf(info) {
const size = /** @type {Long | number} */ (info.size);
return new FileInfo({
fileId: FileId._fromProtobuf(
/** @type {HashgraphProto.proto.IFileID} */ (info.fileID)
),
size: size instanceof Long ? size : Long.fromValue(size),
expirationTime: Timestamp._fromProtobuf(
/** @type {HashgraphProto.proto.ITimestamp} */ (
info.expirationTime
)
),
isDeleted: /** @type {boolean} */ (info.deleted),
keys:
info.keys != null
? KeyList.__fromProtobufKeyList(info.keys)
: new KeyList(),
fileMemo: info.memo != null ? info.memo : "",
ledgerId:
info.ledgerId != null
? LedgerId.fromBytes(info.ledgerId)
: null,
});
}
/**
* @internal
* @returns {HashgraphProto.proto.FileGetInfoResponse.IFileInfo}
*/
_toProtobuf() {
return {
fileID: this.fileId._toProtobuf(),
size: this.size,
expirationTime: this.expirationTime._toProtobuf(),
deleted: this.isDeleted,
keys: this.keys._toProtobufKey().keyList,
memo: this.fileMemo,
ledgerId: this.ledgerId != null ? this.ledgerId.toBytes() : null,
};
}
/**
* @param {Uint8Array} bytes
* @returns {FileInfo}
*/
static fromBytes(bytes) {
return FileInfo._fromProtobuf(
HashgraphProto.proto.FileGetInfoResponse.FileInfo.decode(bytes)
);
}
/**
* @returns {Uint8Array}
*/
toBytes() {
return proto.FileGetInfoResponse.FileInfo.encode(
this._toProtobuf()
).finish();
}
}