public class FileBlob extends AbstractBlob implements Serializable
Blob backed by a File.
The backing file may be in a temporary location, which is the case if this FileBlob was constructed from an
InputStream or from a file which was explicitly marked as temporary. In this case, the file may be renamed,
or the file location may be changed to a non-temporary one.
| Modifier and Type | Field and Description |
|---|---|
protected File |
file |
protected boolean |
isTemporary |
digest, encoding, filename, mimeType, TEXT_PLAIN, UTF_8| Constructor and Description |
|---|
FileBlob(File file) |
FileBlob(File file,
String mimeType) |
FileBlob(File file,
String mimeType,
String encoding) |
FileBlob(File file,
String mimeType,
String encoding,
String filename,
String digest) |
FileBlob(InputStream in)
Creates a
FileBlob from an InputStream, by saving it to a temporary file. |
FileBlob(InputStream in,
String mimeType)
Creates a
FileBlob from an InputStream, by saving it to a temporary file. |
FileBlob(InputStream in,
String mimeType,
String encoding)
Creates a
FileBlob from an InputStream, by saving it to a temporary file. |
FileBlob(InputStream in,
String mimeType,
String encoding,
File tmpDir)
Creates a
FileBlob from an InputStream, by saving it to a temporary file. |
FileBlob(String ext)
Creates a
FileBlob with an empty temporary file with the given extension. |
| Modifier and Type | Method and Description |
|---|---|
File |
getFile()
If this blob is backed by an actual file, returns it.
|
long |
getLength()
Gets the data length in bytes if known.
|
InputStream |
getStream()
Gets an
InputStream for the data of this blob. |
boolean |
isTemporary()
Checks whether this
FileBlob is backed by a temporary file. |
void |
moveTo(File dest)
Moves this blob's temporary file to a new non-temporary location.
|
equals, equalsStream, getByteArray, getCloseableFile, getCloseableFile, getDigest, getDigestAlgorithm, getEncoding, getFilename, getMimeType, getString, hashCode, setDigest, setEncoding, setFilename, setMimeType, transferTo, transferToprotected boolean isTemporary
public FileBlob(File file, String mimeType, String encoding, String filename, String digest)
public FileBlob(InputStream in) throws IOException
FileBlob from an InputStream, by saving it to a temporary file.
The input stream is closed.
in - the input stream, which is closed after useIOExceptionpublic FileBlob(InputStream in, String mimeType) throws IOException
FileBlob from an InputStream, by saving it to a temporary file.
The input stream is closed.
in - the input stream, which is closed after usemimeType - the MIME typeIOExceptionpublic FileBlob(InputStream in, String mimeType, String encoding) throws IOException
FileBlob from an InputStream, by saving it to a temporary file.
The input stream is closed.
in - the input stream, which is closed after usemimeType - the MIME typeencoding - the encodingIOExceptionpublic FileBlob(InputStream in, String mimeType, String encoding, File tmpDir) throws IOException
FileBlob from an InputStream, by saving it to a temporary file.
The input stream is closed.
in - the input stream, which is closed after usemimeType - the MIME typeencoding - the encodingtmpDir - the temporary directory for file creationIOExceptionpublic FileBlob(String ext) throws IOException
FileBlob with an empty temporary file with the given extension.ext - the temporary file extensionIOExceptionpublic File getFile()
BlobThe returned file may be short-lived (temporary), so should be used immediately.
getFile in interface BlobgetFile in class AbstractBlobnull if the blob is not backed by a filepublic long getLength()
BlobgetLength in interface BlobgetLength in class AbstractBlobpublic InputStream getStream() throws IOException
BlobInputStream for the data of this blob.
The contract of Blob is that this method can be called several times and will correctly return a new
InputStream each time. In other words, several reads of the Blob can be done.
Like all InputStream, the result must be closed when done with it to avoid resource leaks.
getStream in interface BlobIOExceptionpublic boolean isTemporary()
FileBlob is backed by a temporary file.public void moveTo(File dest) throws IOException
The move is done as atomically as possible.
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