Forward in Reverse

A Gentle Overview Of Forward System Architecture

Eric, Mike & Steve – WiLSWorld 2010

Outline

• Intro to Forward with Demo• Batch Processing (Backend)• Web Application (Frontend)• Challenges• Q&As throughout

Intro & Demo

http://forward.library.wisconsin.edu

Batch Processing

We have gobs & gobs of data.

1) Extract it

1a) ILS Data

Sort, Deduplicate, Merge

Antique Style KeyBy Stars*Go*Bluehttp://www.flickr.com/photos/artbydebora/1406682449/

Common Identifier = OCLC Number

Catalog Extract Processing Details

• 14 Voyager Instances• 13M MARC bibliographic records extracted• Approximately 14 hours• Local C code

Sorted, deduplicated and merged output:

• 8M records• 10GB Raw MARC data

Why Merge?

• URLs• Formats• Holdings

1b) Digital Collection Data

Fedora Extract Processing Details

• 1 Fedora Repository• 13K “First Class” XML Objects extracted• Approximately 4 hours• Repository query language

XML output:

• METS XML package • Structural XML• MODS Bibliographic XML

• 41MB XML data

2) Index it

We take raw library data and process it with MARC/XML parsing tools and local parsing rulesin order to build a Solr search index.

1. Raw data (MARC & METS XML)

2. Parsing libraries (Java code: marc4j, SAXParser)

3. Local code that defines parsing rules

4. Solr index

1. Raw data

LEADER 02000cam a22003734a 45 0001 6939454005 20051208125417.0008 051104s2004 enka $b 001 0 eng 010 $a 2003045349 035 $a (OCoLC)ocm52165958 040 $a DLC $c DLC $d XMA $d BAKER $d UKM 015 $a GBA430162 $2 bnb 016 7 $a 012906573 $2 Uk 020 $a 0754605175 (alk. paper) 024 $a 99811375970 042 $a pcc 049 $a GZMA 050 00 $a B3376.W564 $b W55355 2004 082 00 $a 111/.85/092 $2 21 245 00 $a Wittgenstein, aesthetics, and philosophy / $c edited by Peter B. Lewis. 260 $a Aldershot, Hants, England ; $a Burlington, VT : $b Ashgate, $c c2004. 300 $a xii, 255 p. : $b ill. ; $c 24 cm. 440 0 $a Ashgate Wittgensteinian studies 505 0 $a Wittgenstein and the aesthetic domain / Kjell S. Johannessen -- 2.

Wittgenstein, anti-essentialism and the definition of art / Terry Diffey -- 3. Rules, creativity and pictures : Wittgenstein's Lectures on aesthetics / David Novitz -- 4. Criticism without theory / Mark W. Rove -- 5. On aesthetic reactions and changing one's mind / Lars Hertzberg -- 6. Wittgenstein and the arts : understanding and performing / Graham McFee -- 7. Wittgenstein's music / R.A. Sharpe -- 8. Wittgenstein on music and language / Oswald Hanfling -- 9. Ethics and aesthetics are one / Carolyn Wilde -- 10. Fiction and reality in the arts / Ilham Dilman -- 11. Literature, human understanding and morality / Ben Tilghman -- 12. 'The self, thinking' : Wittgenstein, Augustine and the autobiographical situation / Garry L. Hagberg

504 $a Includes bibliographical references (p. 235-247) and index.

02000cam a22003734a 45 001000800000005001700008008004100025010001700066035002300083040003000106015001900136016001800155020002800173024001600201042000800217049000900225050002800234082002000262245007400282260006800356300003400424440003600458505081100494504006401305600005001369700002501419938007101444945001901515946003001534946001301564947002101577948001601598994001201614693945420051208125417.0051104s2004 enka b 001 0 eng a 2003045349 a(OCoLC)ocm52165958 aDLCcDLCdXMAdBAKERdUKM aGBA4301622bnb7 a0129065732Uk a0754605175 (alk. paper) a99811375970 apcc aGZMA00aB3376.W564bW55355 200400a111/.85/09222100aWittgenstein, aesthetics, and philosophy /cedited by Peter B. Lewis. aAldershot, Hants, England ;aBurlington, VT :bAshgate,cc2004. axii, 255 p. :bill. ;c24 cm. 0aAshgate Wittgensteinian studies0 aWittgenstein and the aesthetic domain / Kjell S. Johannessen -- 2. Wittgenstein, anti-essentialism and the definition of art / Terry Diffey -- 3. Rules, creativity and pictures : Wittgenstein's Lectures on aesthetics / David Novitz -- 4. Criticism without theory / Mark W. Rove -- 5. On aesthetic reactions and changing one's mind / Lars Hertzberg -- 6. Wittgenstein and the arts : understanding and performing / Graham McFee -- 7. Wittgenstein's music / R.A. Sharpe -- 8. Wittgenstein on music and language / Oswald Hanfling -- 9. Ethics and aesthetics are one / Carolyn Wilde -- 10. Fiction and reality in the arts / Ilham Dilman -- 11. Literature, human understanding and morality / Ben Tilghman -- 12. 'The self, thinking' : Wittgenstein, Augustine and the autobiographical situation / Garry L. Hagberg aIncludes bibliographical references (p. 235-247) and index.10aWittgenstein, Ludwig,d1889-1951xAesthetics.1 aLewis, Peter,d1947- aBaker & TaylorbBKTYc99.95d99.95i0754605175n0004227086sactive c1d89087961587 a714694b2005-11-23c81.86 c99.95d1 aHEUR 4801bm,stk aSCNd348032 a92bGZM

2. MARC/XML parsing libraries

02000cam a22003734a 45 001000800000005001700008008004100025010001700066035002300083040003000106015001900136016001800155020002800173024001600201042000800217049000900225050002800234082002000262245007400282260006800356300003400424440003600458505081100494504006401305600005001369700002501419938007101444945001901515946003001534946001301564947002101577948001601598994001201614693945420051208125417.0051104s2004 enka b 001 0 eng a 2003045349 a(OCoLC)ocm52165958 aDLCcDLCdXMAdBAKERdUKM aGBA4301622bnb7 a0129065732Uk a0754605175 (alk. paper) a99811375970 apcc aGZMA00aB3376.W564bW55355 200400a111/.85/09222100aWittgenstein, aesthetics, and philosophy /cedited by Peter B. Lewis. aAldershot, Hants, England ;aBurlington, VT :bAshgate,cc2004. axii, 255 p. :bill. ;c24 cm. 0aAshgate Wittgensteinian studies0 aWittgenstein and the aesthetic domain / Kjell S. Johannessen -- 2. Wittgenstein, anti-essentialism and the definition of art / Terry Diffey -- 3. Rules, creativity and pictures : Wittgenstein's Lectures on aesthetics / David Novitz -- 4. Criticism without theory / Mark W. Rove -- 5. On aesthetic reactions and changing one's mind / Lars Hertzberg -- 6. Wittgenstein and the arts : understanding and performing / Graham McFee -- 7. Wittgenstein's music / R.A. Sharpe -- 8. Wittgenstein on music and language / Oswald Hanfling -- 9. Ethics and aesthetics are one / Carolyn Wilde -- 10. Fiction and reality in the arts / Ilham Dilman -- 11. Literature, human understanding and morality / Ben Tilghman -- 12. 'The self, thinking' : Wittgenstein, Augustine and the autobiographical situation / Garry L. Hagberg aIncludes bibliographical references (p. 235-247) and index.10aWittgenstein, Ludwig,d1889-1951xAesthetics.1 aLewis, Peter,d1947- aBaker & TaylorbBKTYc99.95d99.95i0754605175n0004227086sactive c1d89087961587 a714694b2005-11-23c81.86 c99.95d1 aHEUR 4801bm,stk aSCNd348032 a92bGZM

3. Local code

http://lucene.apache.org/solr/

4.

What is Solr?

An XML API over a Lucene search index.

Access to Raw Formats

Raw MARC stored for Merged record

Live calls made to Fedoraweb services

Data Refresh

Bibliographic: weekly

Circulation status: nightly

For more information, seehttp://sdg.library.wisc.edu/blog/2010/03/03/solr-marc-indexing-based-on-diffs/

Web Application

Frontend?

• (X)HTML• JavaScript• Cascading Style Sheets• Design

– Information Architecture– User experience– Chrome (images, icons, pretty)

Forward Colophon• ActiveRecordBaseWithoutTable (Rails

plugin)• Apache• Blacklight (Rails plugin)• Blueprint CSS• Bookreader (jQuery)• Capistrano• Crontab• Engines (Rails plugin)• Fedora• Freebase API• GeoIP (Ruby gem)• Google Books API• Haml (Rails plugin)• Happymapper (Ruby gem)• HathiTrust API• jQuery

• Ken (Ruby gem)• LowPro (Prototype JS)• MARC4J• Passenger (modrails)• Prototype JS• PostgreSQL• Raphael• Ruby on Rails• Shibboleth• Subversion• Solr / Lucene• Summon (Ruby gem)• UW-Madison Libraries Staff Directory API• UWDC (Rails plugin)• Voyager API• Tender love and attention

Campus Affiliation

Users localize to a school, allows us scope many features to their campus.

GeoIP RubyGemMatch IP addresses with physical locations.

Raphaël—JavaScript Library “Small JavaScript library that should simplify your work with vector graphics on the web”.

Raphaël

SVG elements, like the circles and squares in the Forward splash page, can be treated as XHTML elements allowing us to manipulate them with JavaScript and CSS.

http://raphaeljs.com/

Campus Homepage

Forward application stack:

•Apache+Passenger (modrails)•Ruby on Rails•PostgreSQL•Apache Solr

Apache+Passenger

Phusion Passenger is an Apache module, which makes deploying Ruby and Ruby on Rails applications on Apache a breeze.

http://www.modrails.com/

Ruby on Rails

“Ruby on Rails is an open-source web framework that’s optimized for programmer happiness and sustainable productivity.”

http://rubyonrails.org/

PostgreSQL

“PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.”

http://www.postgresql.org/

Apache Solr

“Solr is the popular, blazing fast open source enterprise search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document (e.g., Word, PDF) handling.”

http://lucene.apache.org/solr/

Results

Results – Three columnsFacets Results Context

Results – Data sourcesFacets Results Context

SolrSolr +

PostgreSQL + APIs

APIs

Results – Facets – SolrFacets

Results – Solr + PostgreSQL + APIsResults

Results – Context – APIs Context

Bing API Freebase API Google API Libraries Staff Dir. API

Results – Three main columnsFacets Results Context

Results – CSS gridFacets Results Context

Blueprint

“Blueprint is a CSS framework, which aims to cut down on your development time. It gives you a solid foundation to build your project on top of, with an easy-to-use grid, sensible typography, useful plugins, and even a stylesheet for printing.”

http://blueprintcss.org/

Show – Book

Show – Image

Show – Full Text Book

Show – View Full Text Book

BookReader

“The Internet Archive BookReader is used to view books from the Internet Archive online and can also be used to view other books. ”

http://github.com/openlibrary/bookreader

Challenges

Challenges

• Merging MARC, METS extracts• Batch processing time (Time/CPU constraints)• Page level indexing (Bookviewer - memory/disk

constraints)• Voyager API• Organization challenges

– big project, small shop– dealing with vendor silos– multiple cataloging standards– quality of services challenges

Thanks!