I'll have a look.
Paulo
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Michael Schierl
> Sent: Sunday, December 16, 2007 6:48 PM
> To: Post all your questions about iText here
> Subject: [iText-questions] [PATCH] Suggestion: Add
> SeekableInput interface
>
> Hello,
>
> Current iText has a disadvantage for me: it only supports
> RandomAccessFiles or arrays as source for the PDF. Other
> seekable inputs
> like Blobs (from java.sql) cannot be used. So I suggest to add an
> interface SeekableInput and a constructor to RandomAccessFileOrArray
> that takes an instance of this interface as parameter. In the
> long term,
> it might be a good idea to rename the RandomAccessFileOrArray
> class (or
> to eliminate it totally where applicable), but that is not necessary.
>
> The zip file attached contains 3 new files, a patch for
> RandomAccessFileOrArray, and the new version of this file
> after applying
> this patch to revision 3079 (latest at time of writing this).
>
> It introduces a new interface, SeekableInput, that can be used to
> implement other seekable input classes and looks like this:
>
> ----------
> package com.lowagie.text.pdf;
>
> import java.io.IOException;
>
> public interface SeekableInput {
>
> public void close() throws IOException;
> public int getFilePointer() throws IOException;
> public boolean isOpen();
> public int length() throws IOException;
> public int read() throws IOException;
> public int read(byte b[], int off, int len) throws IOException;
> public void reOpen() throws IOException;
> public void seek(int pos) throws IOException;
> }
> ---------
>
> Two classes, SeekableArrayInput and SeekableFileInput, implement this
> interface and incorporate the pieces from RandomAccessFileOrArray that
> are specific for files or array.
>
> RandomAccessFileOrArray has a new constructor that takes SeekableInput
> instances. The old constructors create appropriate
> Seekable(Array|File)Input instances. Some of the old methods in
> RandomAccessFileOrArray call the interface methods now.
>
> The patch was tested by running a few of the jPdfTweak tests
> against the
> patched iText library. Its behaviour should be 100% equivalent before
> and after the change.
>
> What do you think about it?
>
> Michael
>
>
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