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EpochMillisToCqlLocalDate.java
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EpochMillisToCqlLocalDate.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_localdate;
import io.nosqlbench.virtdata.api.annotations.Categories;
import io.nosqlbench.virtdata.api.annotations.Category;
import io.nosqlbench.virtdata.api.annotations.Example;
import io.nosqlbench.virtdata.api.annotations.ThreadSafeMapper;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneId;
import java.util.function.LongFunction;
/**
* Converts epoch millis to a java.time.LocalDate, which takes the place
* of the previous CQL-specific LocalDate. if a zoneid of 'default' is provided,
* then the time zone is set by the default for the JVM. If not, then
* a valid ZoneId is looked up. The no-args version uses GMT.
*/
@ThreadSafeMapper
@Categories({Category.datetime})
public class EpochMillisToCqlLocalDate implements LongFunction<LocalDate> {
private final ZoneId zoneId;
public EpochMillisToCqlLocalDate(String zoneid) {
if (zoneid.equals("default")) {
this.zoneId = ZoneId.systemDefault();
} else {
this.zoneId = ZoneId.of(zoneid);
}
}
@Example({"EpochMillisToJavaLocalDate()", "Yields the LocalDate for the millis in GMT"})
public EpochMillisToCqlLocalDate() {
this.zoneId = ZoneId.of("GMT");
}
@Override
public LocalDate apply(long value) {
return LocalDate.ofInstant(Instant.ofEpochMilli(value), ZoneId.systemDefault());
}
}