/**
*
* Copyright 2005 LogicBlaze, Inc. http://www.logicblaze.com
*
* 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.servicemix.components.vfs;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.vfs.FileContent;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemManager;
import org.apache.commons.vfs.VFS;
import org.apache.commons.vfs.FileSystemException;
import org.servicemix.components.util.DefaultFileMarshaler;
import org.servicemix.components.util.FileMarshaler;
import org.servicemix.components.util.OutBinding;
import javax.jbi.JBIException;
import javax.jbi.messaging.MessageExchange;
import javax.jbi.messaging.MessagingException;
import javax.jbi.messaging.NormalizedMessage;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.io.OutputStream;
/**
* A component which receives a message and writes the content to a file using the
* <a href="http://jakarta.apache.org/commons/vfs.html">Jakarta Commons VFS</a> library
* for handling various file systems like files, Samba, WebDAV, FTP, SFTP and temporary files.
*
* @version $Revision: 685 $
*/
public class FileWriter extends OutBinding {
private static final Log log = LogFactory.getLog(FileWriter.class);
private FileObject directory;
private FileObjectEditor editor = new FileObjectEditor();
private FileMarshaler marshaler = new DefaultFileMarshaler();
private String uniqueFileName = "ServiceMix";
// Properties
//-------------------------------------------------------------------------
public FileObject getDirectory() {
return directory;
}
public void setDirectory(FileObject directory) {
this.directory = directory;
}
public String getPath() {
return editor.getPath();
}
public void setPath(String path) {
editor.setPath(path);
}
public FileSystemManager getFileSystemManager() {
return editor.getFileSystemManager();
}
public void setFileSystemManager(FileSystemManager fileSystemManager) {
editor.setFileSystemManager(fileSystemManager);
}
public FileMarshaler getMarshaler() {
return marshaler;
}
public void setMarshaler(FileMarshaler marshaler) {
this.marshaler = marshaler;
}
public String getUniqueFileName() {
return uniqueFileName;
}
/**
* Sets the name used to make a unique name if no file name is available on the message.
*
* @param uniqueFileName the new value of the unique name to use for generating unique names
*/
public void setUniqueFileName(String uniqueFileName) {
this.uniqueFileName = uniqueFileName;
}
// Implementation methods
//-------------------------------------------------------------------------
protected void init() throws JBIException {
if (directory == null) {
directory = editor.getFileObject();
}
super.init();
}
protected void process(MessageExchange exchange, NormalizedMessage message) throws MessagingException {
OutputStream out = null;
try {
String name = marshaler.getOutputName(exchange, message);
if (name == null) {
throw new MessagingException("No output name available. Cannot output message!");
}
else {
FileObject newFile = directory.resolveFile(name);
FileContent content = newFile.getContent();
if (content != null) {
out = content.getOutputStream();
}
if (out == null) {
throw new MessagingException("No output stream available for output name: " + name);
}
}
marshaler.writeMessage(exchange, message, out, name);
done(exchange);
}
catch (IOException e) {
throw new MessagingException(e);
}
catch (TransformerException e) {
throw new MessagingException(e);
}
finally {
if (out != null) {
try {
out.close();
}
catch (IOException e) {
log.error("Caught exception while closing stream on error: " + e, e);
}
}
}
}
}