blob: 045b9903896d2fae9c26b091631e0fb759742766 [file] [log] [blame]
/*
* 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;
}
}