package io.nosqlbench.datamappers.functions.to_cqlvector.from_string;

/*
 * Copyright (c) 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.
 */


import com.datastax.oss.driver.api.core.data.CqlVector;
import io.nosqlbench.virtdata.api.annotations.Categories;
import io.nosqlbench.virtdata.api.annotations.Category;
import io.nosqlbench.virtdata.api.annotations.ThreadSafeMapper;

import java.util.ArrayList;
import java.util.List;
import java.util.function.Function;

@ThreadSafeMapper
@Categories(Category.conversion)
public class CSVToCqlFloatVector implements Function<String, CqlVector<Float>> {
    @Override
    public CqlVector<Float> apply(String s) {
        String[] split = s.split(",");
        List<Float> floats = new ArrayList<>(split.length);
        for (String string : split) {
            floats.add(Float.parseFloat(string));
        }
        return com.datastax.oss.driver.api.core.data.CqlVector.newInstance(floats);
    }
}
