/*
 * Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. 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.wso2.carbon.ml.decomposition.spark.transformations;

import org.apache.spark.api.java.function.Function;
import org.apache.spark.mllib.linalg.Vector;
import org.apache.spark.mllib.regression.LabeledPoint;

/**
 * This maps each data point to features
 */
public class DataPointToFeatureMapper implements Function<LabeledPoint, Vector> {

    /**
     * Returns the feature of each LabelPoint
     *
     * @param labeledPoint
     * @return
     * @throws Exception
     */
    @Override
    public Vector call(LabeledPoint labeledPoint) throws Exception {
        return labeledPoint.features();
    }
}
