/*
* 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.solr.client.solrj.io.eval;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.time.temporal.TemporalAccessor;
import java.util.Locale;
import org.apache.solr.client.solrj.io.stream.expr.StreamExpression;
import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;
/**
* Provides a epoch stream evaluator
*/
public class TemporalEvaluatorEpoch extends TemporalEvaluator {
public static final String FUNCTION_NAME = "epoch";
public TemporalEvaluatorEpoch(StreamExpression expression, StreamFactory factory) throws IOException {
super(expression, factory);
}
@Override
public String getFunction() {
return FUNCTION_NAME;
}
@Override
public Object evaluateDate(TemporalAccessor aDate) throws IOException {
if (aDate instanceof LocalDateTime) {
return ((LocalDateTime)aDate).atZone(ZoneOffset.UTC).toInstant().toEpochMilli();
}
throw new IOException(String.format(Locale.ROOT, "Unsupported function '%s' called on %s", FUNCTION_NAME, aDate.toString()));
}
}