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 */ 017package org.apache.camel.component.file; 018 019import java.io.File; 020import java.io.IOException; 021 022import org.apache.camel.Exchange; 023import org.apache.camel.NoTypeConversionAvailableException; 024 025/** 026 * File binding with the {@link java.io.File} type. 027 */ 028public class FileBinding implements GenericFileBinding<File> { 029 private File body; 030 private byte[] content; 031 032 public Object getBody(GenericFile<File> file) { 033 // if file content has been loaded then return it 034 if (content != null) { 035 return content; 036 } 037 038 // as we use java.io.File itself as the body (not loading its content into an OutputStream etc.) 039 // we just store a java.io.File handle to the actual file denoted by the 040 // file.getAbsoluteFilePath. We must do this as the original file consumed can be renamed before 041 // being processed (preMove) and thus it points to an invalid file location. 042 // GenericFile#getAbsoluteFilePath() is always up-to-date and thus we use it to create a file 043 // handle that is correct 044 if (body == null || !file.getAbsoluteFilePath().equals(body.getAbsolutePath())) { 045 body = new File(file.getAbsoluteFilePath()); 046 } 047 return body; 048 } 049 050 public void setBody(GenericFile<File> file, Object body) { 051 // noop 052 } 053 054 public void loadContent(Exchange exchange, GenericFile<?> file) throws IOException { 055 if (content == null) { 056 try { 057 content = exchange.getContext().getTypeConverter().mandatoryConvertTo(byte[].class, exchange, file); 058 } catch (NoTypeConversionAvailableException e) { 059 throw new IOException("Cannot load file content: " + file.getAbsoluteFilePath(), e); 060 } 061 } 062 } 063}