/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* Licensed 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 com.linkedin.pinot.core.query.aggregation.groupby.utils;
import it.unimi.dsi.fastutil.floats.Float2IntMap;
import it.unimi.dsi.fastutil.floats.Float2IntOpenHashMap;
import it.unimi.dsi.fastutil.floats.FloatArrayList;
import it.unimi.dsi.fastutil.floats.FloatList;
/**
* Implementation of {@link ValueToIdMap} for float.
*/
public class FloatToIdMap extends BaseValueToIdMap {
Float2IntMap _valueToIdMap;
FloatList _idToValueMap;
public FloatToIdMap() {
_valueToIdMap = new Float2IntOpenHashMap();
_valueToIdMap.defaultReturnValue(INVALID_KEY);
_idToValueMap = new FloatArrayList();
}
@Override
public int put(float value) {
int id = _valueToIdMap.get(value);
if (id == INVALID_KEY) {
id = _idToValueMap.size();
_valueToIdMap.put(value, id);
_idToValueMap.add(value);
}
return id;
}
@Override
public float getFloat(int id) {
assert id < _idToValueMap.size();
return _idToValueMap.get(id);
}
@Override
public String getString(int id) {
assert id < _idToValueMap.size();
return (Float.valueOf(_idToValueMap.getFloat(id)).toString());
}
}