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CqlDurationFunctions.java
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CqlDurationFunctions.java
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/*
* Copyright (c) 2022 nosqlbench
*
* 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 io.nosqlbench.datamappers.functions.long_to_cqlduration;
import com.datastax.oss.driver.api.core.data.CqlDuration;
import io.nosqlbench.virtdata.api.annotations.Categories;
import io.nosqlbench.virtdata.api.annotations.Category;
import io.nosqlbench.virtdata.api.annotations.ThreadSafeMapper;
import io.nosqlbench.virtdata.api.bindings.VirtDataConversions;
import java.util.function.LongFunction;
import java.util.function.LongToIntFunction;
import java.util.function.LongUnaryOperator;
/**
* Map a long value into a CQL Duration object based on a set of field functions.
*/
@ThreadSafeMapper
@Categories({Category.datetime})
public class CqlDurationFunctions implements LongFunction<CqlDuration> {
private final LongToIntFunction monthsfunc;
private final LongToIntFunction daysfunc;
private final LongUnaryOperator nanosfunc;
/**
* Create a CQL Duration object from the two provided field functions. The months field is always set to
* zero in this form.
* @param monthsFunc A function that will yield the months value
* @param daysFunc A function that will yield the days value
* @param nanosFunc A function that will yeild the nanos value
*/
public CqlDurationFunctions(Object monthsFunc, Object daysFunc, Object nanosFunc) {
this.monthsfunc = VirtDataConversions.adaptFunction(monthsFunc, LongToIntFunction.class);
this.daysfunc = VirtDataConversions.adaptFunction(daysFunc, LongToIntFunction.class);
this.nanosfunc = VirtDataConversions.adaptFunction(nanosFunc, LongUnaryOperator.class);
}
/**
* Create a CQL Duration object from the two provided field functions. The months field is always set to
* zero in this form.
* @param daysFunc A function that will yield the days value
* @param nanosFunc A function that will yeild the nanos value
*/
public CqlDurationFunctions(Object daysFunc, Object nanosFunc) {
this.monthsfunc = (v) -> 0;
this.daysfunc = VirtDataConversions.adaptFunction(daysFunc, LongToIntFunction.class);
this.nanosfunc = VirtDataConversions.adaptFunction(nanosFunc, LongUnaryOperator.class);
}
@Override
public CqlDuration apply(long value) {
int months = monthsfunc.applyAsInt(value);
int days = daysfunc.applyAsInt(value);
long nanos = nanosfunc.applyAsLong(value);
return CqlDuration.newInstance(months,days,nanos);
}
}