Remove DistributedResourceBundleMessageSource (#1976)

[release_notes]

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-core/src/main/java/org/eclipse/hawkbit/DistributedResourceBundleMessageSource.java

@@ -1,75 +0,0 @@
-/**
- * Copyright (c) 2015 Bosch Software Innovations GmbH and others
- *
- * This program and the accompanying materials are made
- * available under the terms of the Eclipse Public License 2.0
- * which is available at https://www.eclipse.org/legal/epl-2.0/
- *
- * SPDX-License-Identifier: EPL-2.0
- */
-package org.eclipse.hawkbit;
-
-import java.io.IOException;
-import java.util.Properties;
-
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.context.support.ReloadableResourceBundleMessageSource;
-import org.springframework.core.io.Resource;
-import org.springframework.core.io.ResourceLoader;
-import org.springframework.core.io.support.ResourcePatternResolver;
-
-/**
- * This resource bundles using specified basenames, to resource loading. This
- * MessageSource implementation supports more than 1 properties file with the
- * same name. All properties files will be merged.
- */
-@Slf4j
-public class DistributedResourceBundleMessageSource extends ReloadableResourceBundleMessageSource {
-
-    private static final String PROPERTIES_SUFFIX = ".properties";
-    private ResourceLoader resourceLoader;
-
-    /**
-     * Constructor to set Defaults. Default base name is classpath*:/messages.
-     * So all messages_ will be found.
-     */
-    public DistributedResourceBundleMessageSource() {
-        setBasename("classpath*:/messages");
-        setDefaultEncoding("UTF-8");
-        setUseCodeAsDefaultMessage(true);
-    }
-
-    @Override
-    public void setResourceLoader(final ResourceLoader resourceLoader) {
-        this.resourceLoader = resourceLoader;
-        super.setResourceLoader(resourceLoader);
-    }
-
-    @Override
-    protected PropertiesHolder refreshProperties(final String filename, final PropertiesHolder propHolder) {
-        final Properties properties = new Properties();
-        long lastModified = -1;
-        if (!(resourceLoader instanceof ResourcePatternResolver)) {
-            log.warn(
-                    "Resource Loader {} doesn't support getting multiple resources. Default properties mechanism will used",
-                    resourceLoader.getClass().getName());
-            return super.refreshProperties(filename, propHolder);
-        }
-
-        try {
-            final Resource[] resources = ((ResourcePatternResolver) resourceLoader)
-                    .getResources(filename + PROPERTIES_SUFFIX);
-            for (final Resource resource : resources) {
-                final String sourcePath = resource.getURI().toString().replace(PROPERTIES_SUFFIX, "");
-                final PropertiesHolder holder = super.refreshProperties(sourcePath, propHolder);
-                properties.putAll(holder.getProperties());
-                if (lastModified < resource.lastModified()) {
-                    lastModified = resource.lastModified();
-                }
-            }
-        } catch (final IOException ignored) {
-            log.warn("Resource with filename " + filename + " couldn't load", ignored);
-        }
-        return new PropertiesHolder(properties, lastModified);
-    }
-}