[TIKA-1423] Build a parser to extract data from GRIB formats

• Type: New Feature
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6
• Fix Version/s: 1.8
• Component/s: metadata, mime, parser
• Labels: features newbie
• Assignee: Vineet Ghatge
• Reporter: Vineet Ghatge
• Created: 22/Sep/14 06:07
• Updated: 31/Mar/15 02:47
• Resolved: 29/Jan/15 21:53

Description

Arctic dataset contains a MIME format called GRIB - General
Regularly­distributed information in Binary form http://en.wikipedia.org/wiki/GRIB . GRIB is a well known data format which is a concise data format used in meteorology to store historical and
weather data. There are 2 different types of the format ­ GRIB 0, GRIB 2. The focus will be on GRIB 2 which is the most prevalent. Each GRIB record intended for either transmission or storage contains a single parameter with values located at an array of grid points, or represented as a set of spectral coefficients, for a single level (or layer), encoded as a continuous bit stream. Logical divisions of the record are designated as "sections", each of which provides control information and/or data. A GRIB record consists of six sections, two of which are optional:

(0) Indicator Section
(1) Product Definition Section (PDS)
(2) Grid Description Section (GDS) ­ optional
(3) Bit Map Section (BMS) ­ optional
(4) Binary Data Section (BDS)
(5) '7777' (ASCII Characters)