org.apache.inlong.sort.redis.common.schema.impl.PlainPrefixMatchSchema Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
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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.Tuple3;
import org.apache.flink.table.catalog.ResolvedSchema;
import org.apache.flink.table.data.GenericRowData;
import org.apache.flink.table.data.StringData;
import java.util.Collections;
public class PlainPrefixMatchSchema extends AbstractRedisSchema> {
public PlainPrefixMatchSchema(ResolvedSchema resolvedSchema) {
super(resolvedSchema);
}
@Override
public void validate(ResolvedSchema resolvedSchema) {
validateStaticPrefixMatch(resolvedSchema);
}
@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 rowData = (GenericRowData) in;
String rowKey = rowData.getString(getKeyIndex()).toString();
GenericRowData valueRowData = new GenericRowData(in.getRowKind(), in.getArity() - 1);
for (int i = 0; i < rowData.getArity() - 1; ++i) {
valueRowData.setField(i, rowData.getField(i + 1));
}
byte[] valueBytes = serializationSchema.serialize(valueRowData);
String value = StringData.fromBytes(valueBytes).toString();
return Collections.singletonList(Tuple3.of(rowKind, rowKey, value));
};
}
}