com.romeikat.datamessie.core.base.util.StringUtil.java Source code

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Here is the source code for com.romeikat.datamessie.core.base.util.StringUtil.java

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package com.romeikat.datamessie.core.base.util;

/*-
 * ============================LICENSE_START============================
 * data.messie (core)
 * =====================================================================
 * Copyright (C) 2013 - 2017 Dr. Raphael Romeikat
 * =====================================================================
 * This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public
License along with this program.  If not, see
<http://www.gnu.org/licenses/gpl-3.0.html>.
 * =============================LICENSE_END=============================
 */

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.text.NumberFormat;
import java.util.Collection;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.LineIterator;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

@Service
public class StringUtil {

    private static NumberFormat INTEGER_FORMAT;

    static {
        INTEGER_FORMAT = NumberFormat.getIntegerInstance();
    }

    public String formatAsInteger(final Object o) {
        return INTEGER_FORMAT.format(o);
    }

    public String removeLineSeparators(final String s) {
        if (s == null) {
            return null;
        }

        try {
            final StringBuilder sb = new StringBuilder();
            final InputStream is = IOUtils.toInputStream(s, StandardCharsets.UTF_8);
            final LineIterator it = IOUtils.lineIterator(is, StandardCharsets.UTF_8);
            while (it.hasNext()) {
                if (sb.length() > 0) {
                    sb.append(" ");
                }
                sb.append(it.nextLine());
            }
            IOUtils.closeQuietly(is);
            return sb.toString();
        } catch (final IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    public String getSingularOrPluralTerm(final String singularTerm, final int number) {
        if (StringUtils.isBlank(singularTerm)) {
            return singularTerm;
        }

        return number == 1 ? singularTerm : singularTerm + "s";
    }

    public boolean containsIgnoreCase(final Collection<String> existingStrings, final String candidateString) {
        for (final String existingString : existingStrings) {
            if (StringUtils.equalsIgnoreCase(existingString, candidateString)) {
                return true;
            }
        }

        return false;
    }

}