| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you 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 org.apache.logging.log4j.catalog.api.dao; |
| |
| import com.fasterxml.jackson.core.JsonFactory; |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import java.time.LocalDateTime; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.catalog.api.Attribute; |
| import org.apache.logging.log4j.catalog.api.CatalogReader; |
| |
| /** |
| * Provides access to the JSON version of the catalog. This version is not modifiable. |
| */ |
| // @Component |
| public class JsonCatalogReader extends AbstractCatalogReader { |
| |
| private static final Logger LOGGER = LogManager.getLogger(JsonCatalogReader.class); |
| |
| // @Autowired |
| CatalogReader catalogReader; |
| |
| public CatalogReader getCatalogReader() { |
| return catalogReader; |
| } |
| |
| public void setCatalogReader(CatalogReader catalogReader) { |
| this.catalogReader = catalogReader; |
| } |
| |
| // @PostConstruct |
| public void init() { |
| catalogData = catalogReader.read(); |
| for (Attribute attribute : catalogData.getAttributes()) { |
| attributes.put(attribute.getName(), attribute); |
| } |
| } |
| |
| @Override |
| public String readCatalog() { |
| JsonFactory factory = new JsonFactory(); |
| factory.enable(JsonParser.Feature.ALLOW_COMMENTS); |
| ObjectMapper mapper = new ObjectMapper(factory); |
| try { |
| return mapper.writeValueAsString(catalogData); |
| } catch (JsonProcessingException ex) { |
| LOGGER.error("Unable to serialze Catalog", ex); |
| return null; |
| } |
| } |
| |
| @Override |
| public LocalDateTime getLastUpdated() { |
| return catalogReader.getLastUpdated(); |
| } |
| } |