This is the command-line version of the ncISO utility for creating ISO metadata and ACDD rubric HTML files from a netCDF data source.
The command line options are:
–Xms1024m and –Xmx1024m: Standard java elements for specifying the amount of memory to allocate to the ncISO utility. In this case 1024 megaBytes are specified for initial and maximum memory.
–ts THREDDS_CATALOG_URL: specifies the URL of the THREDDS catalog to process.
–num N: specifies the number of datasets to process per branch. Specifying a small number of datasets/branch, as in this case, results in a fast sample scan that is representative in THREDDS catalogs with generally homogeneous content in each branch.
Specify a large number for a translation of all content.
–depth 20: limits the crawlers descent into the catalog.
–iso: signals to the crawler to generate ISO.
–waf ROOT_WAF_FOLDER: signals the crawler to dump files to a flat WAF structure.
–custom: signals to the crawler to translate the NCML using a custom stylesheet.
–xsl: XSLT_FILENAME located in an xsl subfolder.
Example:
Crawl small example NOAA catalog and generate metadata:
java -Xms1024m -Xmx1024m -jar ncISO-2.3.8.jar -ts https://ferret.pmel.noaa.gov/pmel/thredds/carbontracker.xml -num 1 -depth 20 -iso true
Add a sub-directory called xsl with a file MYXSL.xsl (for example), and run
java -Xms1024m -Xmx1024m -jar ncISO-2.3.8.jar -ts https://ferret.pmel.noaa.gov/pmel/thredds/carbontracker.xml -num 1 -depth 20 -iso true -custom true -xsl MYXSL.xsl
This command will produce an output file _META.xml along side your _ISO.xml output file. The _META.xml file will contain the results of applying MYXSL.xsl.
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