001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.component.file.remote;
018
019 import java.util.List;
020
021 import org.apache.camel.Processor;
022 import org.apache.camel.component.file.GenericFile;
023 import org.apache.camel.util.FileUtil;
024 import org.apache.camel.util.ObjectHelper;
025 import org.apache.commons.net.ftp.FTPFile;
026
027 /**
028 * FTP consumer
029 */
030 public class FtpConsumer extends RemoteFileConsumer<FTPFile> {
031
032 private String endpointPath;
033
034 public FtpConsumer(RemoteFileEndpoint<FTPFile> endpoint, Processor processor, RemoteFileOperations<FTPFile> fileOperations) {
035 super(endpoint, processor, fileOperations);
036 this.endpointPath = endpoint.getConfiguration().getDirectory();
037 }
038
039 protected void pollDirectory(String fileName, List<GenericFile<FTPFile>> fileList) {
040 if (fileName == null) {
041 return;
042 }
043
044 // remove trailing /
045 fileName = FileUtil.stripTrailingSeparator(fileName);
046
047 if (log.isTraceEnabled()) {
048 log.trace("Polling directory: " + fileName);
049 }
050 List<FTPFile> files = operations.listFiles(fileName);
051 for (FTPFile file : files) {
052 if (file.isDirectory()) {
053 RemoteFile<FTPFile> remote = asRemoteFile(fileName, file);
054 if (endpoint.isRecursive() && isValidFile(remote, true)) {
055 // recursive scan and add the sub files and folders
056 String directory = fileName + "/" + file.getName();
057 pollDirectory(directory, fileList);
058 }
059 } else if (file.isFile()) {
060 RemoteFile<FTPFile> remote = asRemoteFile(fileName, file);
061 if (isValidFile(remote, false)) {
062 if (isInProgress(remote)) {
063 if (log.isTraceEnabled()) {
064 log.trace("Skipping as file is already in progress: " + remote.getFileName());
065 }
066 } else {
067 // matched file so add
068 fileList.add(remote);
069 }
070 }
071 } else {
072 log.debug("Ignoring unsupported remote file type: " + file);
073 }
074 }
075 }
076
077 @SuppressWarnings("unchecked")
078 private RemoteFile<FTPFile> asRemoteFile(String directory, FTPFile file) {
079 RemoteFile<FTPFile> answer = new RemoteFile<FTPFile>();
080
081 answer.setEndpointPath(endpointPath);
082 answer.setFile(file);
083 answer.setFileName(file.getName());
084 answer.setFileNameOnly(file.getName());
085 answer.setFileLength(file.getSize());
086 if (file.getTimestamp() != null) {
087 answer.setLastModified(file.getTimestamp().getTimeInMillis());
088 }
089 answer.setHostname(((RemoteFileConfiguration) endpoint.getConfiguration()).getHost());
090
091 // all ftp files is considered as relative
092 answer.setAbsolute(false);
093
094 // create a pseudo absolute name
095 String absoluteFileName = (ObjectHelper.isNotEmpty(directory) ? directory + "/" : "") + file.getName();
096 answer.setAbsoluteFilePath(absoluteFileName);
097
098 // the relative filename, skip the leading endpoint configured path
099 String relativePath = ObjectHelper.after(absoluteFileName, endpointPath);
100 // skip leading /
101 relativePath = FileUtil.stripLeadingSeparator(relativePath);
102 answer.setRelativeFilePath(relativePath);
103
104 return answer;
105 }
106
107 }