exec.validate_evaluation.microcommits.MicroCommitGenerationRunner.java Source code

Introduction

Here is the source code for exec.validate_evaluation.microcommits.MicroCommitGenerationRunner.java

Source

/**
 * Copyright 2016 Technische Universitt Darmstadt
 * 
 * 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 exec.validate_evaluation.microcommits;

import java.util.Collection;
import java.util.List;
import java.util.Set;

import com.google.common.collect.Lists;

import cc.recommenders.usages.Usage;
import exec.validate_evaluation.queryhistory.QueryHistoryIo;

public class MicroCommitGenerationRunner {

    // see QueryHistoryStats (9 covers 95% of data)
    private static final int MAX_HISTORY_LENGTH = 9;

    private QueryHistoryIo qhIo;
    private MicroCommitIo mcIo;
    private MicroCommitGenerationLogger log;

    public MicroCommitGenerationRunner(QueryHistoryIo qhIo, MicroCommitIo mcIo, MicroCommitGenerationLogger log) {
        this.qhIo = qhIo;
        this.mcIo = mcIo;
        this.log = log;
    }

    public void run() {
        log.init(MAX_HISTORY_LENGTH);
        Set<String> zips = qhIo.findQueryHistoryZips();
        log.foundZips(zips);
        for (String zip : zips) {
            log.processingZip(zip);
            List<MicroCommit> mcForUser = Lists.newLinkedList();

            Collection<List<Usage>> histories = qhIo.readQueryHistories(zip);
            log.foundHistories(histories.size());

            for (List<Usage> qh : histories) {
                List<MicroCommit> mcs = createCommits(qh);
                log.convertedToCommits(qh.size(), mcs.size());
                mcForUser.addAll(mcs);
            }
            mcIo.store(mcForUser, zip);
        }

        log.done();
    }

    private List<MicroCommit> createCommits(List<Usage> qh) {

        List<MicroCommit> commits = Lists.newLinkedList();
        for (int i = 1; i < qh.size(); i++) {

            // TODO fix/test
            int first = Math.max(0, i - MAX_HISTORY_LENGTH);

            for (int j = first; j < i; j++) {
                Usage end = qh.get(i);
                Usage start = qh.get(j);
                commits.add(MicroCommit.create(start, end));
            }
        }
        return commits;
    }
}