VectorRangesToVector.java

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 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
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package org.elasticsearch.ml.modelinput;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/*
* Maps a list of fields to a vector.
* */

public abstract class VectorRangesToVector implements ModelInputEvaluator<MapModelInput> {

    public boolean isSparse() {
        return sparse;
    }

    boolean sparse;
    List<VectorRange> vectorRangeList = new ArrayList<>();

    public List<VectorRange> getEntries() {
        return vectorRangeList;
    }

    protected abstract Object vector(DataSource dataSource);

    @SuppressWarnings("unchecked")
    @Override
    public MapModelInput convert(DataSource dataSource) {
        return new MapModelInput((Map<String, Object>)vector(dataSource));
    }

    protected int numEntries;
}