CEOS CWIC Report:Metadata Mapping Table

Cocoa Beach, FL

WGISS-37, April 2014Michael MorahanMichael.P.Morahan@nasa.gov

Metadata Mapping Table: Agenda

• Brief overview• Description of feature• recommend feature fields (table)

• Use case example• POST call

o add new group and new value with descriptiono assign new value to entries

• GET call - retrieving matching entries• Delete call- remove entry from table

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Brief overview: Description of feature

• Is a feature for tagging metadata records with arbitrary "flags” to allow external partners to organize collections of metadata. This would allow partners to create collection subsets highly customized to a specialized discipline or interest outside of what is defined in metadata.

• Partners creating collections of metadata need not be involved with the metadata authoring process and no changes are required on the authors part.

• These tags are not publicly displayed in any web interface.• The tags can be used in creating IDN portal subsets or any

other searches on IDN.

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Brief overview: Recommend fields (table)

FieldName Field Type Field descriptionGroup varchar(1024) Creator or provider

associated with the value. Example: ceos.wgiss.cwic

Name varchar(1024) Name given to field value. Example: public_data_sets

Value Medium List of approved valid keywords Example: cwic_public_all, cwic_public_csw, cwic_public_opensearch

Description Medium Description of available input values. Example: Collection approved for CWIC distribution through CSW server

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Example: POST call

• Adding new value to the Mapping table• Group: org.ceos.wgiss.cwic

o Name: public_data_sets Value: cwic_public Description: "Set to cwic_public when this record is to be

included in the CWIC repository” o Name: echo10.DataSetID

Value: "MODIS/Terra Calibrated Radiances 5-Min L1B Swath 1km V005"

Description: the ID of the record in the ECHO system

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Example: POST call

curl \ -X POST \

-d "value=cwic_public&text=true+when+public" \ http://gcmddemo.gsfc.nasa.gov/mws/tags/dif/org.ceos.wgiss.cwic/public_data_sets/MOD021KM

curl \-X POST \ -d <code>"value=MODIS/Terra+Calibrated+Radiances+5-Min+L1B+Swath+1km+V005" \ http://gcmddemo.gsfc.nasa.gov/mws/tags/dif/org.ceos.wgiss.cwic/echo10.DataSetID/MOD021KM

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Example: GET call

Query to GET tagged entries:

curl http://gcmddemo.gsfc.nasa.gov/mws/tags/dif/org.ceos.wgiss.cwic/public_data_sets/?entryId=MOD021KM => "cwic_public"

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Example: GET call

Output of GET call: <?xml version="1.0" encoding="UTF-8"?>

<tags><header/><results> <Entry_ID>MOD021KM</Entry_ID><Metadata> <Group>org.ceos.wgiss.cwic</Group> <Name>public_data_sets</Name> <Description>Set to cwic_public when this record is to be included in the CWIC repository</Description> <Update_Date>2014-04-09 16:33:31.0</Update_Date> <Value>cwic_public</Value></Metadata><Metadata> <Group>org.ceos.wgiss.cwic</Group> <Name>echo10.DataSetID</Name> <Description>the ID of the record in the ECHO system</Description> <Update_Date>2014-04-09 16:46:05.0</Update_Date> <Value>MODIS/Terra Calibrated Radiances 5-Min L1B Swath 1km V005</Value></Metadata></results></tags>

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Example: Remove call

Removing entries:

curl -X DELETE http://gcmddemo.gsfc.nasa.gov/mws/tags/dif/org.ceos.wgiss.cwic/public_data_sets/MOD021KM/

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