| /* |
| * 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.drill.exec.store.easy.json.loader; |
| |
| import org.apache.drill.exec.vector.accessor.ScalarWriter; |
| |
| /** |
| * Listener for JSON integer values. Allows conversion from |
| * Boolean, double and string types. (The conversion from double |
| * is lossy, but perhaps better than failing the query.) |
| * Conversion from Boolean is the usual semantics: |
| * true = 1, false = 0. Conversion from string uses the Java |
| * integer parsing semantics. |
| */ |
| public class BigIntListener extends ScalarListener { |
| |
| public BigIntListener(JsonLoaderImpl loader, ScalarWriter writer) { |
| super(loader, writer); |
| } |
| |
| @Override |
| public void onBoolean(boolean value) { |
| writer.setLong(value ? 1 : 0); |
| } |
| |
| @Override |
| public void onInt(long value) { |
| writer.setLong(value); |
| } |
| |
| @Override |
| public void onFloat(double value) { |
| writer.setLong(Math.round(value)); |
| } |
| |
| @Override |
| public void onString(String value) { |
| value = value.trim(); |
| if (value.isEmpty()) { |
| setNull(); |
| } else { |
| try { |
| writer.setLong(Long.parseLong(value)); |
| } catch (NumberFormatException e) { |
| throw loader.dataConversionError(schema(), "string", value); |
| } |
| } |
| } |
| |
| @Override |
| protected void setArrayNull() { |
| writer.setLong(0); |
| } |
| } |