return (reader instanceof BufferedReader)
        ? (BufferedReader) reader
        : new BufferedReader(reader);
  }

  /**
   * Opens a new {@link Stream} for reading text one line at a time from this source. This method
   * returns a new, independent stream each time it is called.
   *
   * <p>The returned stream is lazy and only reads from the source in the terminal operation. If an

    return (reader instanceof BufferedReader)
        ? (BufferedReader) reader
        : new BufferedReader(reader);
  }

  /**
   * Opens a new {@link Stream} for reading text one line at a time from this source. This method
   * returns a new, independent stream each time it is called.
   *
   * <p>The returned stream is lazy and only reads from the source in the terminal operation. If an

import assertk.assertions.isGreaterThan
import assertk.assertions.isGreaterThanOrEqualTo
import assertk.assertions.isNotEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import java.io.BufferedReader
import java.io.Closeable
import java.io.IOException
import java.io.InputStreamReader
import java.net.ConnectException
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.ProtocolException

import assertk.assertions.isGreaterThanOrEqualTo
import assertk.assertions.isNotEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import assertk.assertions.isTrue
import java.io.BufferedReader
import java.io.Closeable
import java.io.IOException
import java.io.InputStreamReader
import java.net.ConnectException
import java.net.HttpURLConnection
import java.net.ProtocolException

        public InputStreamThread(final InputStream is, final String charset, final int maxOutputLineBuffer) {
            try {
                br = new BufferedReader(new InputStreamReader(is, charset));
            } catch (final UnsupportedEncodingException e) {
                br = new BufferedReader(new InputStreamReader(is, Constants.UTF_8_CHARSET));
            }
            maxLineBuffer = maxOutputLineBuffer;
        }

        /**

    }

    private String getDefaultMappings() throws IOException {
        final StringBuilder mappingSource = new StringBuilder();
        try (BufferedReader br = new BufferedReader(new InputStreamReader(
                this.getClass().getClassLoader().getResourceAsStream("suggest_indices/suggest/mappings-default.json")))) {

            String line;

        public InputStreamThread(final InputStream is, final String charset, final int maxOutputLineBuffer) {
            try {
                br = new BufferedReader(new InputStreamReader(is, charset));
            } catch (final UnsupportedEncodingException e) {
                br = new BufferedReader(new InputStreamReader(is, Constants.UTF_8_CHARSET));
            }
            maxLineBuffer = maxOutputLineBuffer;
        }

        final Pattern parsePattern = Pattern.compile("(.*)\\s*=>\\s*(.*)\\s*$");
        final List<CharMappingItem> itemList = new ArrayList<>();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(in, Constants.UTF_8))) {
            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                // Remove comments

        final String dictionaryPath = System.getProperty("fess.dictionary.path", StringUtil.EMPTY);
        final StringBuilder sb = new StringBuilder();
        try (BufferedReader br =
                new BufferedReader(new InputStreamReader(this.getClass().getClassLoader().getResourceAsStream(getSuggestAnalyzerPath())))) {

            String line;
            while ((line = br.readLine()) != null) {

     */
    protected void reload(final ProtwordsUpdater updater, final InputStream in) {
        final List<ProtwordsItem> itemList = new ArrayList<>();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(in, Constants.UTF_8))) {
            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {