| /* |
| * 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.rocketmq.dashboard.service.impl; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import org.apache.rocketmq.dashboard.config.RMQConfigure; |
| import org.apache.rocketmq.srvutil.FileWatchService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractFileStore { |
| public final Logger log = LoggerFactory.getLogger(this.getClass()); |
| |
| public String filePath; |
| |
| public AbstractFileStore(RMQConfigure configure, String fileName) { |
| filePath = configure.getRocketMqDashboardDataPath() + File.separator + fileName; |
| if (!new File(filePath).exists()) { |
| // Use the default path |
| InputStream inputStream = getClass().getResourceAsStream("/" + fileName); |
| if (inputStream == null) { |
| log.error(String.format("Can not found the file %s in Spring Boot jar", fileName)); |
| System.exit(1); |
| } else { |
| try { |
| load(inputStream); |
| } catch (Exception e) { |
| log.error("fail to load file {}", filePath, e); |
| } finally { |
| try { |
| inputStream.close(); |
| } catch (IOException e) { |
| log.error("inputStream close exception", e); |
| } |
| } |
| } |
| } else { |
| log.info(String.format("configure file is %s", filePath)); |
| load(); |
| watch(); |
| } |
| } |
| |
| abstract void load(InputStream inputStream); |
| |
| private void load() { |
| load(null); |
| } |
| |
| private boolean watch() { |
| try { |
| FileWatchService fileWatchService = new FileWatchService(new String[] {filePath}, new FileWatchService.Listener() { |
| @Override |
| public void onChanged(String path) { |
| log.info("The file changed, reload the context"); |
| load(); |
| } |
| }); |
| fileWatchService.start(); |
| log.info("Succeed to start FileWatcherService"); |
| return true; |
| } catch (Exception e) { |
| log.error("Failed to start FileWatcherService", e); |
| } |
| return false; |
| } |
| } |