org.apache.drill.exec.util.ActionOnFile Maven / Gradle / Ivy
/*
* 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.drill.exec.util;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Path;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Defines possible actions on the file and performs the necessary action
*/
public enum ActionOnFile {
/**
* No action will be performed
*/
NONE {
@Override
public void action(URL url) { }
},
/**
* Renames the file by adding current timestamp value with "yyyyMMdd_HHmmss"
* format before last dot of original file name
* Example:
* Original file name: "storage-plugins-override.conf"
* New file name: "storage-plugins-override-20180703_033354.conf"
*/
RENAME {
@Override
public void action(URL url) {
String fileName = url.getFile();
File file = new File(url.getPath());
String currentDateTime = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String newFileName = new StringBuilder(fileName)
.insert(fileName.lastIndexOf("."), "-" + currentDateTime)
.toString();
Path filePath = file.toPath();
try {
Files.move(filePath, filePath.resolveSibling(newFileName));
} catch (IOException e) {
logger.error("There was an error during file {} rename.", fileName, e);
}
}
},
/**
* Removes the file
*/
REMOVE {
@Override
public void action(URL url) {
File file = new File(url.getPath());
try {
Files.delete(file.toPath());
} catch (IOException e) {
logger.error("There was an error during file {} removing.", url.getFile(), e);
}
}
};
private static final Logger logger = LoggerFactory.getLogger(ActionOnFile.class);
/**
* Action which should be performed on the file
* @param url the file URL
*/
public abstract void action(URL url);
}