/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.axiom.attachments.lifecycle.impl;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Observable;
import javax.activation.DataHandler;
import javax.mail.MessagingException;
import org.apache.axiom.attachments.CachedFileDataSource;
import org.apache.axiom.attachments.lifecycle.LifecycleManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* FileAccessor wraps the attachment temp file. It is created from PartOnFile.
* The idea behind wrapping the file is to give rumtime an ability to track
* when the file is accessed with streams or data handler and accordingly trigger
* events to handle the the files lifecycle.
*
*/
public class FileAccessor extends Observable{
private static final Log log = LogFactory.getLog(FileAccessor.class);
File file = null;
LifecycleManager manager;
private int accessCount = 0;
public FileAccessor(LifecycleManager manager, File file) {
super();
this.manager = manager;
this.file = file;
}
/**
* @deprecated This method is no longer used in Axiom 1.2.13 and will be removed in Axiom 1.3.
*/
public DataHandler getDataHandler(String contentType) throws MessagingException {
if(log.isDebugEnabled()){
log.debug("getDataHandler()");
log.debug("accessCount =" +accessCount);
}
CachedFileDataSource dataSource = new CachedFileDataSource(file);
dataSource.setContentType(contentType);
accessCount++;
setChanged();
notifyObservers();
DataHandler dataHandler = new DataHandler(dataSource);
return new DataHandlerExtImpl(dataHandler, manager);
}
public String getFileName() throws MessagingException {
if(log.isDebugEnabled()){
log.debug("getFileName()");
}
return file.getAbsolutePath();
}
public InputStream getInputStream() throws IOException, MessagingException {
if(log.isDebugEnabled()){
log.debug("getInputStream()");
}
return new FileInputStream(file);
}
public OutputStream getOutputStream() throws FileNotFoundException{
if(log.isDebugEnabled()){
log.debug("getOutputStream()");
}
return new FileOutputStream(file);
}
public long getSize() {
return file.length();
}
public File getFile() {
return file;
}
public void setFile(File file) {
this.file = file;
}
public int getAccessCount() {
return accessCount;
}
}