public FilePartSource(File file) throws FileNotFoundException 
{
    
        this.file = file;
        if (file != null) {
            if (!file.isFile()) {
                throw new FileNotFoundException("File is not a normal file.");
            }
            if (!file.canRead()) {
                throw new FileNotFoundException("File is not readable.");
            }
            this.fileName = file.getName();       
        }
}

Constructor for FilePartSource.

Parameters:

file - the FilePart source File.

Throws:

FileNotFoundException - if the file does not exist or cannot be read

 public FilePartSource(String fileName,
    File file) throws FileNotFoundException 
{
        this(file);
        if (fileName != null) {
            this.fileName = fileName;
        }
}

Constructor for FilePartSource.

Parameters:

fileName - the file name of the FilePart

file - the source File for the FilePart

Throws:

FileNotFoundException - if the file does not exist or cannot be read

 public InputStream createInputStream() throws IOException 
{
        if (this.file != null) {
            return new FileInputStream(this.file);
        } else {
            return new ByteArrayInputStream(new byte[] {});
        }
}

Return a new FileInputStream for the current filename.

 public String getFileName() 
{
        return (fileName == null) ? "noname" : fileName;
}

Return the current filename

 public long getLength() 
{
        if (this.file != null) {
            return this.file.length();
        } else {
            return 0;
        }
}

Return the length of the file