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;
018
019 import java.io.File;
020 import java.io.IOException;
021 import java.io.Serializable;
022
023 import org.apache.camel.Exchange;
024 import org.apache.camel.NoTypeConversionAvailableException;
025 import org.apache.camel.util.IOHelper;
026
027 /**
028 * File binding with the {@link java.io.File} type.
029 */
030 public class FileBinding implements GenericFileBinding<File>, Serializable {
031
032 private File body;
033 private byte[] content;
034
035 public Object getBody(GenericFile<File> file) {
036 // if file content has been loaded then return it
037 if (content != null) {
038 return content;
039 }
040
041 // as we use java.io.File itself as the body (not loading its content into a OutputStream etc.)
042 // we just store a java.io.File handle to the actual file denoted by the
043 // file.getAbsoluteFilePath. We must do this as the original file consumed can be renamed before
044 // being processed (preMove) and thus it points to an invalid file location.
045 // GenericFile#getAbsoluteFilePath() is always up-to-date and thus we use it to create a file
046 // handle that is correct
047 if (body == null || !file.getAbsoluteFilePath().equals(body.getAbsolutePath())) {
048 body = new File(file.getAbsoluteFilePath());
049 }
050 return body;
051 }
052
053 public void setBody(GenericFile<File> file, Object body) {
054 // noop
055 }
056
057 public void loadContent(Exchange exchange, GenericFile<File> file) throws IOException {
058 try {
059 content = exchange.getContext().getTypeConverter().mandatoryConvertTo(byte[].class, file.getFile());
060 } catch (NoTypeConversionAvailableException e) {
061 throw IOHelper.createIOException("Cannot load file content: " + file.getAbsoluteFilePath(), e);
062 }
063 }
064
065 }