Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | const util = require('util');
const debug = require('debug')('express-cassandra');
const KeyspaceBuilder = function f(client) {
this._client = client;
};
KeyspaceBuilder.prototype = {
generate_replication_text(replicationOptions) {
if (typeof replicationOptions === 'string') {
return replicationOptions;
}
const properties = [];
Object.keys(replicationOptions).forEach((k) => {
properties.push(util.format("'%s': '%s'", k, replicationOptions[k]));
});
return util.format('{%s}', properties.join(','));
},
create_keyspace(keyspaceName, defaultReplicationStrategy, callback) {
const replicationText = this.generate_replication_text(defaultReplicationStrategy);
const query = util.format(
'CREATE KEYSPACE IF NOT EXISTS "%s" WITH REPLICATION = %s;',
keyspaceName,
replicationText,
);
debug('executing query: %s', query);
this._client.execute(query, (err) => {
this._client.shutdown(() => {
callback(err);
});
});
},
alter_keyspace(keyspaceName, defaultReplicationStrategy, callback) {
const replicationText = this.generate_replication_text(defaultReplicationStrategy);
const query = util.format(
'ALTER KEYSPACE "%s" WITH REPLICATION = %s;',
keyspaceName,
replicationText,
);
debug('executing query: %s', query);
this._client.execute(query, (err) => {
this._client.shutdown(() => {
// eslint-disable-next-line no-console
console.warn('WARN: KEYSPACE ALTERED! Run the `nodetool repair` command on each affected node.');
callback(err);
});
});
},
get_keyspace(keyspaceName, callback) {
const query = util.format(
"SELECT * FROM system_schema.keyspaces WHERE keyspace_name = '%s';",
keyspaceName,
);
debug('executing query: %s', query);
this._client.execute(query, (err, result) => {
Iif (err) {
this._client.shutdown(() => {
callback(err);
});
return;
}
Eif (result.rows && result.rows.length > 0) {
callback(null, result.rows[0]);
return;
}
callback();
});
},
};
module.exports = KeyspaceBuilder;
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