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/**
* Copyright 2016 [ZTE] and others.
*
* Licensed 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.openo.commontosca.catalog.ftp;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.log4j.Logger;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class FtpUtil {
private static Logger logger = Logger.getLogger(FtpUtil.class);
private static FTPClient ftp;
/**
* get ftp connection.
*
* @param conftp Ftp
* @return boolean
* @throws Exception e
*/
public static boolean connectFtp(Ftp conftp) throws Exception {
ftp = new FTPClient();
boolean flag = false;
if (conftp.getPort() == null) {
ftp.connect(conftp.getIpAddr(), 21);
} else {
ftp.connect(conftp.getIpAddr(), conftp.getPort());
}
ftp.login(conftp.getUserName(), conftp.getPwd());
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
int reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return flag;
}
ftp.changeWorkingDirectory(conftp.getPath());
flag = true;
return flag;
}
/**
* close ftp connection.
*/
public static void closeFtp() {
if (ftp != null && ftp.isConnected()) {
try {
ftp.logout();
ftp.disconnect();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
/**
* upload file by ftp.
*
* @param file file to upload
* @throws Exception e
*/
public static void upload(File file) throws Exception {
if (file.isDirectory()) {
ftp.makeDirectory(file.getName());
ftp.changeWorkingDirectory(file.getName());
String[] files = file.list();
for (String fstr : files) {
File file1 = new File(file.getPath() + "/" + fstr);
if (file1.isDirectory()) {
upload(file1);
ftp.changeToParentDirectory();
} else {
File file2 = new File(file.getPath() + "/" + fstr);
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
} else {
File file2 = new File(file.getPath());
FileInputStream input = new FileInputStream(file2);
ftp.storeFile(file2.getName(), input);
input.close();
}
}
/**
* download inline config.
*
* @param downftp ftp to download
* @param localBaseDir local directory
* @param remoteBaseDir remote directory
* @throws Exception e
*/
public static void startDown(Ftp downftp, String localBaseDir, String remoteBaseDir)
throws Exception {
if (FtpUtil.connectFtp(downftp)) {
try {
FTPFile[] files = null;
boolean changedir = ftp.changeWorkingDirectory(remoteBaseDir);
if (changedir) {
ftp.setControlEncoding("GBK");
files = ftp.listFiles();
for (int i = 0; i < files.length; i++) {
try {
downloadFile(files[i], localBaseDir, remoteBaseDir);
} catch (Exception e1) {
logger.error(e1);
logger.error("<" + files[i].getName() + ">download failed");
}
}
}
} catch (Exception e1) {
logger.error(e1);
logger.error("error occoured while download");
}
} else {
logger.error("Connect failed !");
}
}
/**
* download ftp file.
*
* @param ftpFile ftp file to download
* @param relativeLocalPath relative local path
* @param relativeRemotePath relative remote path
*/
private static void downloadFile(FTPFile ftpFile, String relativeLocalPath,
String relativeRemotePath) {
if (ftpFile.isFile()) {
if (ftpFile.getName().indexOf("?") == -1) {
OutputStream outputStream = null;
try {
File locaFile = new File(relativeLocalPath + ftpFile.getName());
// 判断文件是否存在，存在则返回
if (locaFile.exists()) {
return;
} else {
outputStream = new FileOutputStream(relativeLocalPath + ftpFile.getName());
ftp.retrieveFile(ftpFile.getName(), outputStream);
outputStream.flush();
outputStream.close();
}
} catch (Exception e1) {
logger.error(e1);
} finally {
try {
if (outputStream != null) {
outputStream.close();
}
} catch (IOException e1) {
logger.error("输出文件流异常");
}
}
}
} else {
String newlocalRelatePath = relativeLocalPath + ftpFile.getName();
String newRemote = new String(relativeRemotePath + ftpFile.getName().toString());
File fl = new File(newlocalRelatePath);
if (!fl.exists()) {
fl.mkdirs();
}
try {
newlocalRelatePath = newlocalRelatePath + '/';
newRemote = newRemote + "/";
String currentWorkDir = ftpFile.getName().toString();
boolean changedir = ftp.changeWorkingDirectory(currentWorkDir);
if (changedir) {
FTPFile[] files = null;
files = ftp.listFiles();
for (int i = 0; i < files.length; i++) {
downloadFile(files[i], newlocalRelatePath, newRemote);
}
}
if (changedir) {
ftp.changeToParentDirectory();
}
} catch (Exception e1) {
logger.error(e1);
}
}
}
}
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