oracle.forms.demos.uploadserver
Class FormsDecoder
java.lang.Object
|
+--oracle.forms.demos.uploadserver.FormsDecoder
- public class FormsDecoder
- extends java.lang.Object
This class performs the task of assisting with the conversion of BASE64 encoded
data and the subsequent storage in a file. This class was designed primarily
for use from the Forms 6i Java Importer in conjunction with the
FileUploader JavaBean.
The FileUploader JavaBean returns BASE64 encoded data in
a series of 4K chunks which need to be reassembled into a contiguous string for
use in the decoding process. This class enables a Form to store the chunks
of data it receives with the addChunk() method and then to decode the chunks
using the decodeBuffer() method.
The Byte stream of the uploaded file may have been compressed before uploading
so the decodeBuffer() method takes care of that as well
- Version:
- 1.1
- Author:
- Steve Button, Duncan Mills
Constructor Summary |
FormsDecoder()
Create a new FormsDecoder object. |
Method Summary |
void |
addChunk(java.lang.String data)
Appends a chunk of data to the end of the buffer. |
void |
decodeBuffer(java.lang.String directoryName,
java.lang.String fileName,
int filesize,
boolean isCompressed)
Convert the data that has been added to the buffer via the addChunk method
to it's original format using sun.misc.BASE64Decoder and write it out to the
specified filename. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
FormsDecoder
public FormsDecoder()
- Create a new FormsDecoder object. This operation initialises the
buffer used to store the fragments.
addChunk
public void addChunk(java.lang.String data)
- Appends a chunk of data to the end of the buffer.
- Parameters:
data
- the chunk of data to be appended to the buffer.
decodeBuffer
public void decodeBuffer(java.lang.String directoryName,
java.lang.String fileName,
int filesize,
boolean isCompressed)
throws java.io.IOException,
FormsDecoderException
- Convert the data that has been added to the buffer via the addChunk method
to it's original format using sun.misc.BASE64Decoder and write it out to the
specified filename.
- Parameters:
filename
- the file to create for the decoded data.filesize
- the size of the uploaded fileisCompressed
- indicator that we need to unzip the file- Throws:
- java.io.IOException -
- FormsDecoderException -