https://github.com/miku/oaicrawl

OAI crawler for strange endpoints.
https://github.com/miku/oaicrawl

code4lib oai

Last synced: about 1 month ago
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OAI crawler for strange endpoints.

• Host: GitHub
• URL: https://github.com/miku/oaicrawl
• Owner: miku
• Created: 2017-09-11T19:53:40.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-05-08T16:15:02.000Z (over 5 years ago)
• Last Synced: 2024-06-20T02:10:57.411Z (7 months ago)
• Topics: code4lib, oai
• Language: Go
• Homepage:
• Size: 74.2 KB
• Stars: 5
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
oaicrawl

========

Harvest an OAI endpoint by fetching records one by one. This is a different

strategy from the windowed and cached approach used in

[metha](https://github.com/miku/metha).

Install via *go get* or [releases](https://github.com/miku/oaicrawl/releases).

oaicrawl does not cache anything and will write the raw responses directly to

standard output.

```shell

$ oaicrawl -f oai_dc -verbose http://www.academicpub.org/wapoai/OAI.aspx > harvest.data

...

DEBU[0025] fetched 1395 identifiers with 1 requests in 25.140568087s

```

Use the `-b` flag to crawl in a best effort way (continue in the presence of

errors):

```shell

$ oaicrawl -b -f oai_dc -verbose http://www.academicpub.org/wapoai/OAI.aspx > harvest.data

...

... worker-11 backoff [3]: ..ertasacademica.com/5318&metadataPrefix=oai_dc

```

This crawler was written for working with endpoints that are slightly

off-standard and cannot be harvested easily in chunks.

Test it yourself (might take a day to harvest completely):

```shell

$ oaicrawl -f mets -b -verbose http://zvdd.de/oai2/

...

```

Usage

-----

```shell

$ oaicrawl -h

Usage of oaicrawl:

  -b    create best effort data set

  -e duration

        max elapsed time (default 10s)

  -f string

        format (default "oai_dc")

  -retry int

        max number of retries (default 3)

  -verbose

        more logging

  -version

        show version

  -w int

        number of parallel connections (default 16)

```