com.wavemaker.runtime.i18n.AcceptLanguageHeaderBasedLocaleProvider Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (C) 2022-2023 WaveMaker, Inc.
*
* 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.
******************************************************************************/
package com.wavemaker.runtime.i18n;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.lang3.StringUtils;
import com.wavemaker.commons.i18n.DefaultLocaleProvider;
import com.wavemaker.runtime.web.filter.WMRequestFilter;
/**
* @author Uday Shankar
*/
public class AcceptLanguageHeaderBasedLocaleProvider extends DefaultLocaleProvider {
@Override
public String[] getLocales() {
HttpServletRequest httpServletRequest = WMRequestFilter.getCurrentThreadHttpServletRequest();
if (httpServletRequest != null) {
String acceptLanguageHeader = httpServletRequest.getHeader("Accept-Language");
if (StringUtils.isNotBlank(acceptLanguageHeader)) {
Enumeration locales = httpServletRequest.getLocales();
List localesList = new ArrayList<>();
while (locales.hasMoreElements()) {
localesList.add(locales.nextElement().toLanguageTag());
}
return localesList.toArray(new String[0]);
}
}
return super.getLocales();
}
}