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Core ACS AEM Commons OSGi Bundle. Includes commons utilities.
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/*
 * #%L
 * ACS AEM Commons Bundle
 * %%
 * Copyright (C) 2013 Adobe
 * %%
 * 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
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 * #L%
 */
package com.adobe.acs.commons.i18n;


import com.day.cq.i18n.I18n;
import org.apache.sling.api.resource.Resource;

import javax.servlet.http.HttpServletRequest;
import java.util.Locale;

/**
 * Provides I18n translations translations / maps from a resource or locale
 */
public interface I18nProvider {

    /**
     * Provides the translated value based on resource
     *
     * @param key      i18n key
     * @param resource underlying resource
     * @return translated string
     */
    String translate(String key, Resource resource);

    /**
     * Provides the translated value based on resource
     *
     * @param key      i18n key
     * @param resource underlying resource
     * @param localeIgnoreContent if true only the path is used to determine the language.
     * @see com.day.cq.wcm.api.Page#getLanguage(boolean)
     * @return translated string
     */
    default String translate(String key, Resource resource, boolean localeIgnoreContent){
        return translate(key, resource);
    }

    /**
     * Provides the translated value based on resource
     *
     * @param key    i18n key
     * @param locale locale
     * @return translated string
     */
    String translate(String key, Locale locale);

    /**
     * Provides the translated value based on request
     *
     * @param key     i18n key
     * @param request locale
     * @return translated string
     */
    String translate(String key, HttpServletRequest request);

    /**
     * Provides the i18n map based on the underlying resource
     *
     * @param resource underlying resource
     * @return i18n map
     */
    I18n i18n(Resource resource);

    /**
     * Provides the i18n map based on the underlying resource
     *
     * @param resource underlying resource
     * @param localeIgnoreContent if true only the path is used to determine the language.
     * @see com.day.cq.wcm.api.Page#getLanguage(boolean)
     * @return i18n map
     */
    default I18n i18n(Resource resource, boolean localeIgnoreContent){
        return i18n(resource);
    }

    /**
     * Provides the i18n map based on the underlying resource
     *
     * @param locale locale
     * @return i18n map
     */
    I18n i18n(Locale locale);

    /**
     * Provides the i18n map based on the request
     *
     * @param request request
     * @return i18n map
     */
    I18n i18n(HttpServletRequest request);
}