org.opencms.i18n.CmsDefaultLocaleHandler Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
*
* 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.
*
* For further information about Alkacon Software GmbH & Co. KG, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.i18n;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsProject;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.CmsUser;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
/**
* Default implementation of the locale handler.
*
* @since 6.0.0
*/
public class CmsDefaultLocaleHandler implements I_CmsLocaleHandler {
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsDefaultLocaleHandler.class);
/** A cms object that has been initialized with Admin permissions. */
private CmsObject m_adminCmsObject;
/**
* Constructor, no action is required.
*/
public CmsDefaultLocaleHandler() {
// noop
}
/**
* @see org.opencms.i18n.I_CmsLocaleHandler#getI18nInfo(javax.servlet.http.HttpServletRequest, org.opencms.file.CmsUser, org.opencms.file.CmsProject, java.lang.String)
*/
public CmsI18nInfo getI18nInfo(HttpServletRequest req, CmsUser user, CmsProject project, String resourceName) {
CmsLocaleManager localeManager = OpenCms.getLocaleManager();
List defaultLocales = null;
String encoding = null;
CmsObject adminCms = null;
try {
// create a copy of the Admin context to avoid concurrent modification
adminCms = OpenCms.initCmsObject(m_adminCmsObject);
} catch (CmsException e) {
// unable to copy Admin context - this should never happen
}
if (adminCms != null) {
// must switch project id in stored Admin context to match current project
adminCms.getRequestContext().setCurrentProject(project);
adminCms.getRequestContext().setUri(resourceName);
// now get default m_locale names
CmsResource res = null;
try {
res = adminCms.readResource(resourceName, CmsResourceFilter.IGNORE_EXPIRATION);
} catch (CmsException e) {
// unable to read the resource - maybe we need the init handlers
}
if (res == null) {
try {
res = OpenCms.initResource(adminCms, resourceName, req, null);
} catch (CmsException e) {
// unable to resolve the resource, use default locale
}
}
String defaultNames = null;
if (res != null) {
// the resource may not exist at all (e.g. if an unknown resource was requested by the user in the browser)
try {
defaultNames = adminCms.readPropertyObject(
res,
CmsPropertyDefinition.PROPERTY_LOCALE,
true).getValue();
} catch (CmsException e) {
LOG.warn(Messages.get().getBundle().key(Messages.ERR_READ_ENCODING_PROP_1, resourceName), e);
}
if (defaultNames != null) {
defaultLocales = localeManager.getAvailableLocales(defaultNames);
}
// get the encoding
try {
encoding = adminCms.readPropertyObject(
res,
CmsPropertyDefinition.PROPERTY_CONTENT_ENCODING,
true).getValue(OpenCms.getSystemInfo().getDefaultEncoding());
} catch (CmsException e) {
if (LOG.isInfoEnabled()) {
LOG.info(Messages.get().getBundle().key(Messages.ERR_READ_ENCODING_PROP_1, resourceName), e);
}
}
}
}
if ((defaultLocales == null) || (defaultLocales.isEmpty())) {
// no default locales could be determined
defaultLocales = localeManager.getDefaultLocales();
}
if (encoding == null) {
// no special encoding could be determined
encoding = OpenCms.getSystemInfo().getDefaultEncoding();
}
// set the request character encoding
if (req != null) {
try {
req.setCharacterEncoding(encoding);
} catch (UnsupportedEncodingException e) {
LOG.error(Messages.get().getBundle().key(Messages.ERR_UNSUPPORTED_REQUEST_ENCODING_1, encoding), e);
}
}
Locale locale;
// return the first default locale name
if ((defaultLocales != null) && (defaultLocales.size() > 0)) {
locale = defaultLocales.get(0);
} else {
locale = CmsLocaleManager.getDefaultLocale();
}
return new CmsI18nInfo(locale, encoding);
}
/**
* @see org.opencms.i18n.I_CmsLocaleHandler#initHandler(org.opencms.file.CmsObject)
*/
public void initHandler(CmsObject cms) {
m_adminCmsObject = cms;
}
}