com.esofthead.mycollab.core.utils.StringUtils.java Source code

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Here is the source code for com.esofthead.mycollab.core.utils.StringUtils.java

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/**
 * This file is part of mycollab-core.
 *
 * mycollab-core 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.
 *
 * mycollab-core 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 mycollab-core.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.esofthead.mycollab.core.utils;

import org.apache.commons.validator.EmailValidator;
import org.jsoup.Jsoup;
import org.jsoup.safety.Whitelist;

import java.util.GregorianCalendar;
import java.util.Random;

/**
 * Utility class to process string
 *
 * @author MyCollab Ltd.
 * @since 1.0
 */
public class StringUtils {

    public static String trim(String input, int length) {
        return trim(input, length, true);
    }

    /**
     *
     * @param input
     * @param length
     * @param withEllipsis
     * @return
     */
    public static String trim(String input, int length, boolean withEllipsis) {
        if (input == null) {
            return "";
        }

        if (input.length() <= length)
            return input;

        return (withEllipsis) ? (input.substring(0, length) + "...") : (input.substring(0, length));
    }

    /**
     * Check whether <code>text</code> is an Ascii string
     *
     * @param text
     * @return
     */
    public static boolean isAsciiString(String text) {
        return text.matches("\\A\\p{ASCII}*\\z");
    }

    /**
     *
     * @param value
     * @return
     */
    public static String formatRichText(String value) {
        if (org.apache.commons.lang3.StringUtils.isBlank(value)) {
            return "&nbsp;";
        }

        value = Jsoup.clean(value, Whitelist.relaxed());
        value = value.replaceAll("(?:https?|ftps?)://[\\w/%.-][/\\??\\w=?\\w?/%.-]?[/\\?&\\w=?\\w?/%.-]*",
                "<a href=\"$0\">$0</a>");
        return value;
    }

    public static String trimHtmlTags(String value) {
        if (org.apache.commons.lang3.StringUtils.isBlank(value)) {
            return "";
        } else {
            String str = Jsoup.parse(value).text();
            if (str.length() > 200) {
                str = str.substring(0, 200);
            }
            return str;
        }
    }

    public static String generateSoftUniqueId() {
        return "" + (new GregorianCalendar().getTimeInMillis()) + new Random().nextInt(10);
    }

    public static String getStrOptionalNullValue(String value) {
        return (value == null) ? "" : value;
    }

    public static String extractNameFromEmail(String value) {
        int index = (value != null) ? value.indexOf("@") : 0;
        if (index > 0) {
            return value.substring(0, index);
        } else {
            return value;
        }
    }

    private static EmailValidator emailValidator = EmailValidator.getInstance();

    public static boolean isValidEmail(String value) {
        return emailValidator.isValid(value);
    }

    public static boolean isValidPhoneNumber(String value) {
        if (value != null && !value.trim().equals("")) {

            // validate phone numbers of format "1234567890"
            if (value.matches("\\d{10}"))
                return true;
            // validating phone number with -, . or spaces
            else if (value.matches("\\d{3}[-\\.\\s]\\d{3}[-\\.\\s]\\d{4}"))
                return true;
            // validating phone number with extension length from 3 to 5
            else if (value.matches("\\d{3}-\\d{3}-\\d{4}\\s(x|(ext))\\d{3,5}"))
                return true;
            // validating phone number where area code is in braces ()
            else if (value.matches("\\(\\d{3}\\)-\\d{3}-\\d{4}"))
                return true;
            // return false if nothing matches the input
            else
                return false;
        } else {
            return true;
        }
    }

    public static boolean isValidFileName(String value) {
        if (org.apache.commons.lang3.StringUtils.isBlank(value)) {
            return false;
        }
        return !value.matches(".*[^\\w -.].*");
    }
}