de.tudarmstadt.ukp.experiments.argumentation.convincingness.sampling.IOHelper.java Source code

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Here is the source code for de.tudarmstadt.ukp.experiments.argumentation.convincingness.sampling.IOHelper.java

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/*
 * Copyright 2016
 * Ubiquitous Knowledge Processing (UKP) Lab
 * 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 de.tudarmstadt.ukp.experiments.argumentation.convincingness.sampling;

import de.tudarmstadt.ukp.experiments.argumentation.convincingness.createdebate.DebateMetaData;
import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;
import java.util.*;

/**
 * @author Ivan Habernal
 */
public class IOHelper {
    public static String createFileName(DebateMetaData metaData, String stance) {
        return metaData.getTitle().toLowerCase().replaceAll("\\W+", "-") + "_"
                + stance.toLowerCase().replaceAll("\\W+", "-") + ".xml";
    }

    /**
     * Lists all xml files and throw an IOException if no XML files were found
     *
     * @param inputDir input dir
     * @return list of xml files
     * @throws IOException exception
     */
    public static List<File> listXmlFiles(File inputDir) throws IOException {
        ArrayList<File> files = new ArrayList<>(FileUtils.listFiles(inputDir, new String[] { "xml" }, false));

        if (files.isEmpty()) {
            throw new IOException("No xml files found in " + inputDir);
        }

        return files;
    }

    /**
     * Sorts map by value (http://stackoverflow.com/a/2581754)
     *
     * @param map map
     * @param <K> key
     * @param <V> value
     * @return sorted map by value
     */
    public static <K, V extends Comparable<? super V>> LinkedHashMap<K, V> sortByValue(Map<K, V> map,
            final boolean asc) {
        List<Map.Entry<K, V>> list = new LinkedList<>(map.entrySet());
        Collections.sort(list, new Comparator<Map.Entry<K, V>>() {
            @Override
            public int compare(Map.Entry<K, V> o1, Map.Entry<K, V> o2) {
                if (asc) {
                    return (o1.getValue()).compareTo(o2.getValue());
                } else {
                    return (o2.getValue()).compareTo(o1.getValue());
                }
            }
        });

        LinkedHashMap<K, V> result = new LinkedHashMap<>();
        for (Map.Entry<K, V> entry : list) {
            result.put(entry.getKey(), entry.getValue());
        }
        return result;
    }
}