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.io.ByteArrayOutputStream; 020 import java.io.IOException; 021 import java.util.concurrent.ScheduledExecutorService; 022 023 import org.apache.camel.Processor; 024 import org.apache.commons.net.ftp.FTPClient; 025 import org.apache.commons.net.ftp.FTPFile; 026 027 public class FtpConsumer extends RemoteFileConsumer<RemoteFileExchange> { 028 private boolean recursive = true; 029 private String regexPattern = ""; 030 private long lastPollTime; 031 private final FtpEndpoint endpoint; 032 private FTPClient client; 033 034 public FtpConsumer(FtpEndpoint endpoint, Processor processor, FTPClient client) { 035 super(endpoint, processor); 036 this.endpoint = endpoint; 037 this.client = client; 038 } 039 040 public FtpConsumer(FtpEndpoint endpoint, Processor processor, FTPClient client, ScheduledExecutorService executor) { 041 super(endpoint, processor, executor); 042 this.endpoint = endpoint; 043 this.client = client; 044 } 045 046 protected void poll() throws Exception { 047 final String fileName = endpoint.getConfiguration().getFile(); 048 if (endpoint.getConfiguration().isDirectory()) { 049 pollDirectory(fileName); 050 } else { 051 client.changeWorkingDirectory(fileName.substring(0, fileName.lastIndexOf('/'))); 052 final FTPFile[] files = client.listFiles(fileName.substring(fileName.lastIndexOf('/') + 1)); 053 pollFile(files[0]); 054 } 055 lastPollTime = System.currentTimeMillis(); 056 } 057 058 protected void pollDirectory(String dir) throws Exception { 059 client.changeWorkingDirectory(dir); 060 for (FTPFile ftpFile : client.listFiles()) { 061 if (ftpFile.isFile()) { 062 pollFile(ftpFile); 063 } else if (ftpFile.isDirectory()) { 064 if (isRecursive()) { 065 pollDirectory(getFullFileName(ftpFile)); 066 } 067 } else { 068 throw new RuntimeException(""); 069 } 070 } 071 } 072 073 protected String getFullFileName(FTPFile ftpFile) throws IOException { 074 return client.printWorkingDirectory() + "/" + ftpFile.getName(); 075 } 076 077 private void pollFile(FTPFile ftpFile) throws Exception { 078 if (ftpFile.getTimestamp().getTimeInMillis() > lastPollTime) { // TODO 079 // do we 080 // need 081 // to 082 // adjust 083 // the 084 // TZ? 085 // can 086 // we? 087 if (isMatched(ftpFile)) { 088 final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); 089 client.retrieveFile(ftpFile.getName(), byteArrayOutputStream); 090 getProcessor().process(endpoint.createExchange(getFullFileName(ftpFile), byteArrayOutputStream)); 091 } 092 } 093 } 094 095 protected boolean isMatched(FTPFile file) { 096 boolean result = true; 097 if (regexPattern != null && regexPattern.length() > 0) { 098 result = file.getName().matches(getRegexPattern()); 099 } 100 return result; 101 } 102 103 public boolean isRecursive() { 104 return recursive; 105 } 106 107 public void setRecursive(boolean recursive) { 108 this.recursive = recursive; 109 } 110 111 public long getLastPollTime() { 112 return lastPollTime; 113 } 114 115 public void setLastPollTime(long lastPollTime) { 116 this.lastPollTime = lastPollTime; 117 } 118 119 public String getRegexPattern() { 120 return regexPattern; 121 } 122 123 public void setRegexPattern(String regexPattern) { 124 this.regexPattern = regexPattern; 125 } 126 }