org.apache.inlong.sort.redis.common.schema.impl.BitmapStaticKvPairSchema Maven / Gradle / Ivy
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* 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.inlong.sort.redis.common.schema.impl;
import org.apache.inlong.sort.redis.common.schema.StateEncoder;
import org.apache.flink.api.java.tuple.Tuple4;
import org.apache.flink.table.catalog.ResolvedSchema;
import org.apache.flink.table.data.GenericRowData;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import static org.apache.flink.shaded.guava30.com.google.common.base.Preconditions.checkState;
/**
* The RedisSchema for Bitmap data-type and StaticKvPair mode.
*/
public class BitmapStaticKvPairSchema
extends
AbstractRedisSchema> {
public BitmapStaticKvPairSchema(ResolvedSchema resolvedSchema) {
super(resolvedSchema);
}
@Override
public void validate(ResolvedSchema resolvedSchema) {
validateStaticKvPair(resolvedSchema, Long.class, Boolean.class);
}
@Override
public int getKeyIndex() {
return 0;
}
@Override
public int getValueIndex() {
return 1;
}
@Override
public StateEncoder> getStateEncoder() {
return (in, serializationSchema) -> {
boolean rowKind = getRowKind(in.getRowKind());
GenericRowData row = (GenericRowData) in;
String rowKey = row.getString(getKeyIndex()).toString();
checkState(row.getArity() % 2 == 1,
"The number of elements must be odd, and all even elements are field.");
return IntStream
.range(1, row.getArity() / 2 + 1)
.boxed()
.map(i -> {
int keyPos = 2 * i - 1;
long offset = row.getLong(keyPos);
boolean aBoolean = row.getBoolean(keyPos + 1);
return Tuple4.of(rowKind, rowKey, offset, aBoolean);
})
.collect(Collectors.toList());
};
}
}