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CqlUtils.java
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CqlUtils.java
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/*
* Copyright (c) 2023 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.engine.extensions.vectormath;
import com.datastax.oss.driver.api.core.cql.Row;
import io.nosqlbench.nb.api.components.core.NBBaseComponent;
import io.nosqlbench.nb.api.components.core.NBComponent;
import java.util.List;
import java.util.Objects;
public class CqlUtils extends NBBaseComponent {
public CqlUtils(NBComponent parentComponent) {
super(parentComponent);
}
public static long[] cqlRowFieldsToLongArray(String fieldName, List<Row> rows) {
return rows.stream().mapToLong(r -> r.getLong(fieldName)).toArray();
}
public static String[] cqlRowFieldsToStringArray(String fieldName, List<Row> rows) {
return rows.stream().map(r -> r.getString(fieldName)).toArray(String[]::new);
}
public static int[] cqlRowListToIntArray(String fieldName, List<Row> rows) {
return rows.stream().mapToInt(r -> r.getInt(fieldName)).toArray();
}
public static int[] cqlStringColumnToIntArray(String fieldName, List<Row> rows) {
return rows.stream().mapToInt(r -> Integer.parseInt(Objects.requireNonNull(r.getString(fieldName)))).toArray();
}
}