| /* |
| * 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.ambari.logsearch.config.local; |
| |
| import com.google.gson.Gson; |
| import org.apache.ambari.logsearch.config.api.LogLevelFilterManager; |
| import org.apache.ambari.logsearch.config.api.model.loglevelfilter.LogLevelFilter; |
| import org.apache.ambari.logsearch.config.api.model.loglevelfilter.LogLevelFilterMap; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.io.FilenameFilter; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Map; |
| import java.util.TreeMap; |
| |
| /** |
| * Local implementation of Log Level Filter manager - keep the data in [config-dir]/filters folder in [service_name]-filter.json files |
| */ |
| public class LogLevelFilterManagerLocal implements LogLevelFilterManager { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(LogLevelFilterManagerLocal.class); |
| |
| private final String configDir; |
| private final Gson gson; |
| |
| private final FilenameFilter filterConfigFilenameFilter = (dir, name) -> name.endsWith("-filter.json"); |
| |
| public LogLevelFilterManagerLocal(String configDir, Gson gson) { |
| this.configDir = configDir; |
| this.gson = gson; |
| } |
| |
| @Override |
| public void createLogLevelFilter(String clusterName, String logId, LogLevelFilter filter) throws Exception { |
| Path filterDirs = Paths.get(configDir, "filters"); |
| if (!filterDirs.toFile().exists()) { |
| Files.createDirectory(filterDirs); |
| } |
| String logLevelFilterJson = gson.toJson(filter); |
| Path filePath = Paths.get(filterDirs.toAbsolutePath().toString(), String.format("%s-filter.json", logId.toLowerCase())); |
| byte[] data = logLevelFilterJson.getBytes(StandardCharsets.UTF_8); |
| Files.write(filePath, data); |
| } |
| |
| @Override |
| public void setLogLevelFilters(String clusterName, LogLevelFilterMap filters) throws Exception { |
| for (Map.Entry<String, LogLevelFilter> e : filters.getFilter().entrySet()) { |
| Path filterDirs = Paths.get(configDir, "filters"); |
| String logLevelFilterJson = gson.toJson(e.getValue()); |
| Path filePath = Paths.get(filterDirs.toAbsolutePath().toString(), String.format("%s-filter.json", e.getKey())); |
| if (filePath.toFile().exists()) { |
| String currentLogLevelFilterJson = new String(Files.readAllBytes(filePath)); |
| if (!logLevelFilterJson.equals(currentLogLevelFilterJson)) { |
| byte[] data = logLevelFilterJson.getBytes(StandardCharsets.UTF_8); |
| Files.write(filePath, data); |
| LOG.info("Set log level filter for the log " + e.getKey() + " for cluster " + clusterName); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public LogLevelFilterMap getLogLevelFilters(String clusterName) { |
| TreeMap<String, LogLevelFilter> filters = new TreeMap<>(); |
| File filterDirs = Paths.get(configDir, "filters").toFile(); |
| if (filterDirs.exists()) { |
| File[] logLevelFilterFiles = filterDirs.listFiles(filterConfigFilenameFilter); |
| if (logLevelFilterFiles != null) { |
| for (File file : logLevelFilterFiles) { |
| try { |
| String serviceName = file.getName().replace("-filter.json", "").toLowerCase(); |
| String logLevelFilterStr = new String(Files.readAllBytes(file.toPath())); |
| LogLevelFilter logLevelFilter = gson.fromJson(logLevelFilterStr, LogLevelFilter.class); |
| filters.put(serviceName, logLevelFilter); |
| } catch (IOException e) { |
| // skip |
| } |
| } |
| } |
| } |
| LogLevelFilterMap logLevelFilters = new LogLevelFilterMap(); |
| logLevelFilters.setFilter(filters); |
| return logLevelFilters; |
| } |
| } |