Difference between revisions of "Bag ingest"

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In this workflow diagram, the white ovals are manual steps and the grey ovals are automated steps.
 
In this workflow diagram, the white ovals are manual steps and the grey ovals are automated steps.
 
[[File:BagIt.png|680px|thumb|center|]]
 
[[File:BagIt.png|680px|thumb|center|]]
 +
 +
==Parse bag-info.txt contents to AIP METS file==
 +
*Enhancement being developed in 2015
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*Labels in bag-info.txt file serialized as XML in METS sourceMD, linked to the objects directory of the AIP
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**Sample bag-info.txt (from [https://tools.ietf.org/html/draft-kunze-bagit-10 https://tools.ietf.org/html/draft-kunze-bagit-10]:
 +
 +
<pre>Source-Organization: Spengler University
 +
Organization-Address: 1400 Elm St., Cupertino, California, 95014
 +
Contact-Name: Edna Janssen
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Contact-Phone: +1 408-555-1212
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Contact-Email: ej@spengler.edu
 +
External-Description: Uncompressed greyscale TIFF images from the
 +
    Yoshimuri papers colle...
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Bagging-Date: 2008-01-15
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External-Identifier: spengler_yoshimuri_001
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Bag-Size: 260 GB
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Payload-Oxum: 279164409832.1198
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Bag-Group-Identifier: spengler_yoshimuri
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Bag-Count: 1 of 15
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Internal-Sender-Identifier: /storage/images/yoshimuri
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Internal-Sender-Description: Uncompressed greyscale TIFFs created
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    from microfilm and are...</pre>
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 +
**Sample AIP METS file excerpt:
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 +
<pre><mets:amdSec ID="amdSec_14">
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  <mets:sourceMD ID="sourceMD_1">
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    <mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="BagIt">
 +
      <mets:xmlData>
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        <transfer_metadata>
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          <Source-Organization>Spengler University</>
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          <Organization-Address>1400 Elm St., Cupertino, California, 95014</>
 +
          <Contact-Name>Edna Janssen</>
 +
          <Contact-Phone>+1 408-555-1212</>
 +
          <Contact-Email>ej@spengler.edu</>
 +
          <External-Description> Uncompressed greyscale TIFF images from the Yoshimuri papers colle...</>
 +
          <Bagging-Date>2008-01-15</>
 +
          <External-Identifier>spengler_yoshimuri_001</>
 +
          <Bag-Size>260 GB</>
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          <Payload-Oxum>279164409832.1198</>
 +
          <Bag-Group-Identifier>spengler_yoshimuri</>
 +
          <Bag-Count>1 of 15</>
 +
          <Internal-Sender-Identifier>/storage/images/yoshimuri</>
 +
          <Internal-Sender-Description>Uncompressed greyscale TIFFs created from microfilm and are...</>
 +
        </transfer_metadata>
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      </mets:xmlData>
 +
    </mets:mdWrap>
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  </mets:sourceMD>
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</mets:amdSec></pre>
  
  
  
 
[[Category: Development documentation]]
 
[[Category: Development documentation]]

Revision as of 18:07, 2 April 2015

Main Page > Development > Development documentation > Bag ingest

Feature description

Archivematica accepts transfers packaged in accordance with the Bagit specification.

Requirements

  • All standard Bagit checks are run: verifyvalid, checkpayloadoxum, verifycomplete, verifypayloadmanifests, verifytagmanifests.
  • Archivematica differentiates between mandatory and optional bag elements so that if optional elements are not present the bag does not fail the verification micro-service.
  • The BagIt checks generate log files that will be added to the logs directory of the transfer.
  • The BagIt file manifest (manifest-sha512.txt) is placed in the metadata directory of the transfer.
  • The other BagIt files (bag-info.txt, bagit.txt, tagmanifest-md5.txt) will be placed in a logs/BagIt directory.
  • No new PREMIS events are required. The BagIt checks are recorded as a fixity check in PREMIS.

Workflow

In this workflow diagram, the white ovals are manual steps and the grey ovals are automated steps.

BagIt.png

Parse bag-info.txt contents to AIP METS file

Source-Organization: Spengler University
Organization-Address: 1400 Elm St., Cupertino, California, 95014
Contact-Name: Edna Janssen
Contact-Phone: +1 408-555-1212
Contact-Email: ej@spengler.edu
External-Description: Uncompressed greyscale TIFF images from the
    Yoshimuri papers colle...
Bagging-Date: 2008-01-15
External-Identifier: spengler_yoshimuri_001
Bag-Size: 260 GB
Payload-Oxum: 279164409832.1198
Bag-Group-Identifier: spengler_yoshimuri
Bag-Count: 1 of 15
Internal-Sender-Identifier: /storage/images/yoshimuri
Internal-Sender-Description: Uncompressed greyscale TIFFs created
    from microfilm and are...
    • Sample AIP METS file excerpt:
<mets:amdSec ID="amdSec_14">
  <mets:sourceMD ID="sourceMD_1">
    <mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="BagIt">
      <mets:xmlData>
        <transfer_metadata>
          <Source-Organization>Spengler University</>
          <Organization-Address>1400 Elm St., Cupertino, California, 95014</>
          <Contact-Name>Edna Janssen</>
          <Contact-Phone>+1 408-555-1212</>
          <Contact-Email>ej@spengler.edu</>
          <External-Description> Uncompressed greyscale TIFF images from the Yoshimuri papers colle...</>
          <Bagging-Date>2008-01-15</>
          <External-Identifier>spengler_yoshimuri_001</>
          <Bag-Size>260 GB</>
          <Payload-Oxum>279164409832.1198</>
          <Bag-Group-Identifier>spengler_yoshimuri</>
          <Bag-Count>1 of 15</>
          <Internal-Sender-Identifier>/storage/images/yoshimuri</>
          <Internal-Sender-Description>Uncompressed greyscale TIFFs created from microfilm and are...</>
        </transfer_metadata>
      </mets:xmlData>
    </mets:mdWrap>
  </mets:sourceMD>
</mets:amdSec>
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