int-cli
Version:
INT is the new generation of bottom-up created system of IoT and blockchain
63 lines (62 loc) • 2.27 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const path = require("path");
const fs = require("fs-extra");
const error_code_1 = require("../error_code");
const dump_snapshot_1 = require("./dump_snapshot");
class StorageDumpSnapshotManager {
constructor(options) {
this.m_path = path.join(options.path, 'dump');
this.m_logger = options.logger;
this.m_readonly = !!(options && options.readonly);
}
recycle() {
}
async init() {
if (!this.m_readonly) {
fs.ensureDirSync(this.m_path);
}
return error_code_1.ErrorCode.RESULT_OK;
}
uninit() {
// do nothing
}
listSnapshots() {
let blocks = fs.readdirSync(this.m_path);
return blocks.map((blockHash) => {
return new dump_snapshot_1.StorageDumpSnapshot(blockHash, this.getSnapshotFilePath(blockHash));
});
}
getSnapshotFilePath(blockHash) {
return path.join(this.m_path, blockHash);
}
async createSnapshot(from, blockHash) {
this.m_logger.info(`creating snapshot ${blockHash}`);
const snapshot = new dump_snapshot_1.StorageDumpSnapshot(blockHash, this.getSnapshotFilePath(blockHash));
fs.copyFileSync(from.filePath, snapshot.filePath);
return { err: error_code_1.ErrorCode.RESULT_OK, snapshot };
}
async getSnapshot(blockHash) {
const snapshot = new dump_snapshot_1.StorageDumpSnapshot(blockHash, this.getSnapshotFilePath(blockHash));
if (snapshot.exists()) {
return { err: error_code_1.ErrorCode.RESULT_OK, snapshot };
}
else {
return { err: error_code_1.ErrorCode.RESULT_NOT_FOUND };
}
}
releaseSnapshot(blockHash) {
}
removeSnapshot(blockHash) {
const snapshot = new dump_snapshot_1.StorageDumpSnapshot(blockHash, this.getSnapshotFilePath(blockHash));
try {
fs.unlinkSync(snapshot.filePath);
}
catch (e) {
this.m_logger.error(`removeSnapshot ${blockHash} `, e);
return error_code_1.ErrorCode.RESULT_EXCEPTION;
}
return error_code_1.ErrorCode.RESULT_OK;
}
}
exports.StorageDumpSnapshotManager = StorageDumpSnapshotManager;