ravendb/dist/esm/Utility/ClientShardHelper.js

RavenDB client for Node.js

export class ClientShardHelper {
    static toShardName(database, shardNumber) {
        if (ClientShardHelper.isShardName(database)) {
            throw new Error("Expected a non shard name but got " + database);
        }
        if (shardNumber < 0) {
            throw new Error("Shard number must be non-negative");
        }
        return database + "$" + shardNumber;
    }
    static toDatabaseName(shardName) {
        const shardNumberPosition = shardName.indexOf("$");
        if (shardNumberPosition === -1) {
            return shardName;
        }
        return shardName.substring(0, shardNumberPosition);
    }
    static tryGetShardNumberAndDatabaseName(databaseName) {
        const index = databaseName.indexOf("$");
        let shardNumber = -1;
        let shardedDatabaseName;
        if (index !== -1) {
            const slice = databaseName.substring(index + 1);
            shardedDatabaseName = databaseName.substring(0, index);
            shardNumber = parseInt(slice, 10);
            return [shardedDatabaseName, shardNumber];
        }
        return null;
    }
    static getShardNumberFromDatabaseName(databaseName) {
        const result = ClientShardHelper.tryGetShardNumberAndDatabaseName(databaseName);
        return result ? result[1] : null;
    }
    static isShardName(shardName) {
        return shardName.includes("$");
    }
}
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