Difference between revisions of "Web Archive Discovery"

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(Added initial webarchive-discovery outline)
 
 
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{{Infobox tool
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{{Infobox_tool
 
 
|purpose=Indexing and discovery tools for web archives.
 
|purpose=Indexing and discovery tools for web archives.
 
|homepage=https://github.com/ukwa/webarchive-discovery
 
|homepage=https://github.com/ukwa/webarchive-discovery
 
|license=Mixed
 
|license=Mixed
 
|platforms=Java
 
|platforms=Java
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|function=Metadata Extraction, File Format Identification, Content Profiling, Discovery
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|content=Web
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}}
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{{Infobox tool details
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|ohloh_id=Heritrix
 
}}
 
}}
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== Description ==
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<!-- Describe the what the tool does, focusing on it's digital preservation value. Keep it factual. -->
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Full-text indexing system, using Apache Solr as the search back-end. Supports command-line or large-scale map-reduce (Hadoop) processing of ARC and WARC files. Also integrates file format analysis and scans for some known preservation risks.
  
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<!-- Add one ore more categories to describe the function of the tool. Choose carefully, and view the list of existing categories first (see the Navigation sidebar on the left). The following are common category examples, remove those that don't apply -->
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It runs format identification using both [[Apache Tika]] and [[DROID]], and also extracts filename extensions and the first few bytes of each resource, to enable analysis of formats unknown to those tools.
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[[Category:Metadata Extraction]]
 
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[[Category:File Format Identification]]
 
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[[Category:Content Profiling]]
 
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[[Category:Discovery]]
 
  
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If can also be configured to use [[Apache PDFBox]]'s Preflight tool to scan PDF's for PDF/A violations, and record them in the index for analysis.
  
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<!-- Add relevant categories to describe the content type that the tool addresses. Choose carefully, and view the list of existing categories first (see the Navigation sidebar on the left). If the tool works on any content type, do not add a category. The following are common category examples, remove those that don't apply -->
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It also records any parsing errors or other access problems it discovers, which can help find problematic resources.
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[[Category:Web]]
 
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[[Category:Web Archive]]
 
  
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== Description ==
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For more information, see the [https://github.com/ukwa/webarchive-discovery/wiki/Features Features page of the tool's wiki].
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<!-- Describe the what the tool does, focusing on it's digital preservation value. Keep it factual. -->
 
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Full-text indexing system, using Apache Solr as the search back-end. Supports command-line and large-scale map-reduce (Hadoop) processing of ARC and WARC files. Also integrates file format analysis and scans for some known preservation risks.
 
  
 
== User Experiences ==
 
== User Experiences ==
 
<!-- Add hotlinks to user experiences with the tool (eg. blog posts). These should illustrate the effectiveness (or otherwise) of the tool. -->
 
<!-- Add hotlinks to user experiences with the tool (eg. blog posts). These should illustrate the effectiveness (or otherwise) of the tool. -->
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* Used by the [http://www.webarchive.org.uk/ UK Web Archive] to provide access to their collections. More details TBA.
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* Used by the [http://www.webarchive.org.uk/ UK Web Archive] to provide access to their collections. Some details [http://blogs.bl.uk/webarchive/2017/06/revitalising-the-uk-web-archive.html in this blog post]. Feel free to contact [https://twitter.com/UKWebArchive @UKWebArchive] for more information.
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* Also used by a number of other web archives, and by the [https://github.com/archivesunleashed/warclight WARCLight] project.
  
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== Development Activity ==
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= Development Activity =
 
<!-- Provide *evidence* of development activity of the tool. For example, RSS feeds for code issues or commits. -->
 
<!-- Provide *evidence* of development activity of the tool. For example, RSS feeds for code issues or commits. -->
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All development activity is visible on GitHub: http://github.com/ukwa/webarchive-discovery
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<!-- Add the Ohloh.com ID for the tool, if known. -->
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{{Infobox_tool_details
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There is also a #webarchive-discovery channel on the IIPC Slack service. Contact https://twitter.com/NetPreserve for details.
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|ohloh_id=webarchive-discovery
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}}
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=== Release Feed ===
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Below the last 3 release feeds:
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<rss max=3>https://github.com/ukwa/webarchive-discovery/releases.atom</rss>
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=== Activity Feed ===
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Below the last 5 commits:
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<rss max=5>https://github.com/ukwa/webarchive-discovery/commits/master.atom</rss>

Latest revision as of 14:34, 21 April 2021



Indexing and discovery tools for web archives.
Homepage:https://github.com/ukwa/webarchive-discovery
License:Mixed
Platforms:Java
Function:Metadata Extraction,File Format Identification,Content Profiling,Discovery
Content type:Web


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Description[edit]

Full-text indexing system, using Apache Solr as the search back-end. Supports command-line or large-scale map-reduce (Hadoop) processing of ARC and WARC files. Also integrates file format analysis and scans for some known preservation risks.

It runs format identification using both Apache Tika and DROID, and also extracts filename extensions and the first few bytes of each resource, to enable analysis of formats unknown to those tools.

If can also be configured to use Apache PDFBox's Preflight tool to scan PDF's for PDF/A violations, and record them in the index for analysis.

It also records any parsing errors or other access problems it discovers, which can help find problematic resources.

For more information, see the Features page of the tool's wiki.

User Experiences[edit]

Development Activity[edit]

All development activity is visible on GitHub: http://github.com/ukwa/webarchive-discovery

There is also a #webarchive-discovery channel on the IIPC Slack service. Contact https://twitter.com/NetPreserve for details.

Release Feed[edit]

Below the last 3 release feeds:

2024-04-02 09:25:58
[tag:github.com,2008:Repository/7257232/warc-discovery-3.3.1 Revert of source_file_path]
by GilHoggarth
2023-06-02 11:04:22
[tag:github.com,2008:Repository/7257232/warc-discovery-3.3.0 warc-discovery-3.3.0]
by anjackson
2020-11-27 12:25:29
[tag:github.com,2008:Repository/7257232/warc-discovery-3.1.0 warc-discovery-3.1.0]
by anjackson


Activity Feed[edit]

Below the last 5 commits:

2024-04-02 09:24:57
[tag:github.com,2008:Grit::Commit/13595bead029fd44f133ec6c18f689edde202e53 Update CHANGES.md]
by GilHoggarth https://github.com/GilHoggarth
2024-04-02 08:33:41
[tag:github.com,2008:Grit::Commit/2581409f298d2617fb21461edadd0044f70db617 Merge pull request #313 from thomasegense/master]
by GilHoggarth https://github.com/GilHoggarth
2023-12-26 09:58:01
[tag:github.com,2008:Grit::Commit/f98deaddfde179051ee3ba67adb3263b8111fc81 typo fix]
by teg@kb.dk
2023-12-24 09:02:03
[tag:github.com,2008:Grit::Commit/c7873c9a60e7029b70c57a3836690699dd74fa34 Added comment]
by teg@kb.dk
2023-12-24 08:59:23
[tag:github.com,2008:Grit::Commit/9f7e9105841a1aa64613cf39c8be0b9edd1b5947 Changed to debug. Some harvest tools generate a request record for every]
by teg@kb.dk

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