[11] RFR: 8170769 Provide a simple hexdump facility for binary data (original) (raw)
Weijun Wang weijun.wang at oracle.com
Wed May 9 02:34:48 UTC 2018
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Nice tool.
However, I am not sure how toFormattedHexString() and toPrintableString() are useful, seems only for providing a customizable dump format which is, actually, not very customizable.
For me, toHexString and fromHexString are of course the most useful methods. As for dump, I can only think of
- The existing sun.security.HexDumpEncoder format, when I want to dump a lot of bytes as a block
- "00:11:22:33:AA:BB:CC" which fits in one line and also easy to read, when I want inline debugging output
If the customizable dump method is both powerful and simple enough to create 2) above, I'll be happy. Otherwise, I can live with toHexString().replaceAll("(..)(?=.)", "$1:").
Thanks Max
On May 4, 2018, at 4:22 AM, Vincent Ryan <Vincent.X.Ryan at oracle.com> wrote:
Hello, Please review this proposal for a new API to conveniently generate and display binary data using hex string representation. It supports both bulk and stream operations and it can also generate the well-known hexdump format [1]. Thanks
Bug: https://bugs.openjdk.java.net/browse/JDK-8170769 API: http://cr.openjdk.java.net/~vinnie/8170769/javadoc.05/api/java.base/java/util/Hex.html Webrev: http://cr.openjdk.java.net/~vinnie/8170769/webrev.05/
[1] https://docs.oracle.com/cd/E8682401/html/E54763/hexdump-1.html
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