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DoubleAggregatedRecordConverter.java
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DoubleAggregatedRecordConverter.java
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/*
* Copyright 2016 Kings College London and The Hyve
*
* 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 org.radarcns.serialization;
import org.apache.kafka.connect.data.Struct;
import org.apache.kafka.connect.sink.SinkRecord;
import org.bson.BsonDateTime;
import org.bson.BsonDouble;
import org.bson.Document;
import org.radarcns.util.Utility;
import java.util.Collection;
import java.util.Collections;
public class DoubleAggregatedRecordConverter implements RecordConverter {
@Override
public Collection<String> supportedSchemaNames() {
return Collections.singleton("org.radarcns.key.WindowedKey-"
+ "org.radarcns.aggregator.DoubleAggegator");
}
@Override
public Document convert(SinkRecord record) {
Struct key = (Struct) record.key();
Struct value = (Struct) record.value();
return new Document("_id", Utility.intervalKeyToMongoKey(key))
.append("user", key.getString("userID"))
.append("source", key.getString("sourceID"))
.append("min", new BsonDouble(value.getFloat64("min")))
.append("max", new BsonDouble(value.getFloat64("max")))
.append("sum", new BsonDouble(value.getFloat64("sum")))
.append("count", new BsonDouble(value.getFloat64("count")))
.append("avg", new BsonDouble(value.getFloat64("avg")))
.append("quartile", Utility.extractQuartile(value.getArray("quartile")))
.append("iqr", new BsonDouble(value.getFloat64("iqr")))
.append("start", new BsonDateTime(key.getInt64("start")))
.append("end", new BsonDateTime(key.getInt64("end")));
}
}