org.egov.infra.config.properties.MessageSourceConfiguration.java Source code

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Here is the source code for org.egov.infra.config.properties.MessageSourceConfiguration.java

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/*
 *    eGov  SmartCity eGovernance suite aims to improve the internal efficiency,transparency,
 *    accountability and the service delivery of the government  organizations.
 *
 *     Copyright (C) 2017  eGovernments Foundation
 *
 *     The updated version of eGov suite of products as by eGovernments Foundation
 *     is available at http://www.egovernments.org
 *
 *     This program 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
 *     any later version.
 *
 *     This program 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 this program. If not, see http://www.gnu.org/licenses/ or
 *     http://www.gnu.org/licenses/gpl.html .
 *
 *     In addition to the terms of the GPL license to be adhered to in using this
 *     program, the following additional terms are to be complied with:
 *
 *         1) All versions of this program, verbatim or modified must carry this
 *            Legal Notice.
 *            Further, all user interfaces, including but not limited to citizen facing interfaces,
 *            Urban Local Bodies interfaces, dashboards, mobile applications, of the program and any
 *            derived works should carry eGovernments Foundation logo on the top right corner.
 *
 *            For the logo, please refer http://egovernments.org/html/logo/egov_logo.png.
 *            For any further queries on attribution, including queries on brand guidelines,
 *            please contact contact@egovernments.org
 *
 *         2) Any misrepresentation of the origin of the material is prohibited. It
 *            is required that all modified versions of this material be marked in
 *            reasonable ways as different from the original version.
 *
 *         3) This license does not grant any rights to any user of the program
 *            with regards to rights under trademark law for use of the trade names
 *            or trademarks of eGovernments Foundation.
 *
 *   In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org.
 *
 */

package org.egov.infra.config.properties;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static org.apache.commons.lang.StringUtils.EMPTY;
import static org.egov.infra.utils.StringUtils.listToStringArray;

@Configuration
public class MessageSourceConfiguration {

    private static final Logger LOG = LoggerFactory.getLogger(MessageSourceConfiguration.class);

    @Value("${dev.mode}")
    private boolean devMode;

    @Value("#{'${common.properties.files}'.split(',')}")
    private List<String> commonMessageFiles;

    private ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();

    @Bean
    public ReloadableResourceBundleMessageSource parentMessageSource() {
        final ReloadableResourceBundleMessageSource resource = new ReloadableResourceBundleMessageSource();
        resource.setBasenames(processResourceWithPattern(commonMessageFiles));
        resource.setDefaultEncoding(Charset.defaultCharset().name());
        if (devMode) {
            resource.setCacheSeconds(0);
            resource.setUseCodeAsDefaultMessage(true);
        }
        return resource;
    }

    private String[] processResourceWithPattern(List<String> baseNames) {
        List<String> resources = new ArrayList<>();
        for (String baseName : baseNames) {
            if (baseName.contains("*")) {
                try {
                    Resource[] relResources = resourcePatternResolver.getResources("classpath*:" + baseName);
                    Arrays.stream(relResources).forEach(relResource -> resources
                            .add("messages/" + relResource.getFilename().replace(".properties", EMPTY)));
                } catch (IOException e) {
                    LOG.warn("Could not load property file : {}", baseName, e);
                }
            } else {
                resources.add(baseName);
            }
        }
        return listToStringArray(resources);
    }
}