com.liferay.users.admin.internal.user.initials.generator.UserInitialsGeneratorImpl.java Source code

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Here is the source code for com.liferay.users.admin.internal.user.initials.generator.UserInitialsGeneratorImpl.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.users.admin.internal.user.initials.generator;

import com.liferay.portal.kernel.language.LanguageConstants;
import com.liferay.portal.kernel.language.LanguageUtil;
import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.util.ArrayUtil;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.users.admin.kernel.util.UserInitialsGenerator;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.osgi.service.component.annotations.Component;

/**
 * @author Pei-Jung Lan
 */
@Component(immediate = true, service = UserInitialsGenerator.class)
public class UserInitialsGeneratorImpl implements UserInitialsGenerator {

    @Override
    public String getInitials(Locale locale, String firstName, String middleName, String lastName) {

        String[] userNames = { firstName, middleName, lastName };

        Stream<String> userInitialsFieldNamesStream = Stream.of(_getUserInitialsFieldNames(locale));

        return userInitialsFieldNamesStream.map(key -> userNames[_userNameIndexes.get(key)])
                .filter(name -> Validator.isNotNull(name)).limit(2).map(name -> StringUtil.shorten(name, 1))
                .map(initial -> StringUtil.toUpperCase(initial)).collect(Collectors.joining());
    }

    @Override
    public String getInitials(User user) {
        return getInitials(user.getLocale(), user.getFirstName(), user.getMiddleName(), user.getLastName());
    }

    private String[] _getUserInitialsFieldNames(Locale locale) {
        String[] userInitialsFieldNames = _userInitialsFieldNamesMap.get(locale);

        if (userInitialsFieldNames != null) {
            return userInitialsFieldNames;
        }

        userInitialsFieldNames = StringUtil
                .split(LanguageUtil.get(locale, LanguageConstants.KEY_USER_INITIALS_FIELD_NAMES, null));

        if (ArrayUtil.isEmpty(userInitialsFieldNames)) {
            userInitialsFieldNames = _DEFAULT_USER_INITIALS_FIELD_NAMES;
        }

        _userInitialsFieldNamesMap.put(locale, userInitialsFieldNames);

        return userInitialsFieldNames;
    }

    private static final String[] _DEFAULT_USER_INITIALS_FIELD_NAMES = { LanguageConstants.VALUE_FIRST_NAME,
            LanguageConstants.VALUE_LAST_NAME };

    private static final Map<String, Integer> _userNameIndexes = new HashMap<>(3);

    static {
        _userNameIndexes.put(LanguageConstants.VALUE_FIRST_NAME, 0);
        _userNameIndexes.put(LanguageConstants.VALUE_MIDDLE_NAME, 1);
        _userNameIndexes.put(LanguageConstants.VALUE_LAST_NAME, 2);
    }

    private final Map<Locale, String[]> _userInitialsFieldNamesMap = new HashMap<>();

}