/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more 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, 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.apache.jackrabbit.oak.index.indexer.document.flatfile.analysis.modules;

import java.util.List;

import org.apache.jackrabbit.oak.index.indexer.document.flatfile.analysis.stream.NodeData;

/**
 * A collector that also measures the elapsed time.
 */
public class TimeMeasureCollector implements StatsCollector {

    StatsCollector base;
    long nanos;

    public TimeMeasureCollector(StatsCollector base) {
        this.base = base;
    }

    @Override
    public void add(NodeData node) {
        long start = System.nanoTime();
        base.add(node);
        nanos += System.nanoTime() - start;
    }

    @Override
    public void end() {
        base.end();
    }

    public List<String> getRecords() {
        return base.getRecords();
    }

    public String toString() {
        return base.toString() + "time: " + nanos / 1_000_000_000 + " seconds\n";
    }


}
