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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 React from 'react';
import ReactTable from 'react-table';
import { queryDruidSql, QueryManager } from '../../utils';
import { ColumnMetadata } from '../../utils/column-metadata';
import { Loader } from '../loader/loader';
import './datasource-columns-table.scss';
interface TableRow {
columnName: string;
columnType: string;
}
export interface DatasourceColumnsTableProps {
datasourceId: string;
downloadFilename?: string;
}
export interface DatasourceColumnsTableState {
columns?: TableRow[];
loading: boolean;
error?: string;
}
export class DatasourceColumnsTable extends React.PureComponent<
DatasourceColumnsTableProps,
DatasourceColumnsTableState
> {
private datasourceColumnsQueryManager: QueryManager<null, TableRow[]>;
constructor(props: DatasourceColumnsTableProps, context: any) {
super(props, context);
this.state = {
loading: true,
};
this.datasourceColumnsQueryManager = new QueryManager({
processQuery: async () => {
const { datasourceId } = this.props;
const resp = await queryDruidSql<ColumnMetadata>({
query: `SELECT COLUMN_NAME, DATA_TYPE FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'druid' AND TABLE_NAME = '${datasourceId}'`,
});
return resp.map(object => {
return { columnName: object.COLUMN_NAME, columnType: object.DATA_TYPE };
});
},
onStateChange: ({ result, error, loading }) => {
this.setState({ columns: result, error, loading });
},
});
}
componentDidMount(): void {
this.datasourceColumnsQueryManager.runQuery(null);
}
renderTable(error?: string) {
const { columns } = this.state;
return (
<ReactTable
data={columns || []}
defaultPageSize={20}
filterable
columns={[
{
Header: 'Column name',
accessor: 'columnName',
},
{
Header: 'Data type',
accessor: 'columnType',
},
]}
noDataText={error ? error : 'No column data found'}
/>
);
}
render(): JSX.Element {
const { loading, error } = this.state;
this.renderTable(error);
return (
<div className="datasource-columns-table">
<div className="main-area">
{loading ? <Loader loadingText="" loading /> : this.renderTable()}
</div>
</div>
);
}
}
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