Java URL Load readStopwordsURL(URL url, boolean lowercase)

Description

read Stopwords URL

License

Apache License

Declaration

public static Set<String> readStopwordsURL(URL url, boolean lowercase) throws IOException 

Method Source Code

//package com.java2s;
/*/*from  ww w. j ava 2 s . c o m*/
 * Copyright 2016
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universit?t Darmstadt
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.
 */

import java.io.*;
import java.net.URL;

import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Main {
    public static Set<String> readStopwordsURL(URL url, boolean lowercase) throws IOException {
        return readStopwordsInputStream(url.openStream(), lowercase);
    }

    /**
     * Read an {@link InputStream} containing stopwords (one per line).
     * <p>
     * Empty lines and lines starting with ("#") are filtered out.
     *
     * @param inputStream input stream
     * @param lowercase   if true, lowercase everything
     * @return a collection of unique stopwords
     */
    public static Set<String> readStopwordsInputStream(InputStream inputStream, boolean lowercase) {
        return readStream(new BufferedReader(new InputStreamReader(inputStream)).lines(), lowercase);
    }

    private static Set<String> readStream(Stream<String> s, boolean lowercase) {
        return s.map(String::trim).filter(l -> !l.isEmpty()).filter(l -> !l.startsWith("#"))
                .map(l -> lowercase ? l.toLowerCase() : l).collect(Collectors.toSet());
    }
}

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8. readText(final URL url)
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