org.apache.metamodel.csv.CsvCreateTableBuilder Maven / Gradle / Ivy
/**
* 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.
*/
package org.apache.metamodel.csv;
import org.apache.metamodel.create.AbstractTableCreationBuilder;
import org.apache.metamodel.schema.MutableTable;
import org.apache.metamodel.schema.Schema;
import org.apache.metamodel.schema.Table;
import java.util.List;
final class CsvCreateTableBuilder extends AbstractTableCreationBuilder {
public CsvCreateTableBuilder(CsvUpdateCallback updateCallback, Schema schema, String name) {
super(updateCallback, schema, name);
if (!(schema instanceof CsvSchema)) {
throw new IllegalArgumentException("Not a valid CSV schema: " + schema);
}
}
@Override
public Table execute() {
CsvUpdateCallback csvUpdateCallback = getUpdateCallback();
MutableTable table = getTable();
List columnNames = table.getColumnNames();
CsvDataContext csvDataContext = (CsvDataContext) csvUpdateCallback.getDataContext();
if (csvDataContext.getConfiguration().getColumnNameLineNumber() != CsvConfiguration.NO_COLUMN_NAME_LINE) {
csvUpdateCallback.writeRow(columnNames.toArray(new String[columnNames.size()]), false);
}
CsvSchema schema = (CsvSchema) table.getSchema();
CsvTable csvTable = new CsvTable(schema, table.getName(), table.getColumnNames());
schema.setTable(csvTable);
return csvTable;
}
}