67 lines
1.8 KiB
Ruby
67 lines
1.8 KiB
Ruby
require File.dirname(__FILE__) + '/../../couchrest'
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couch = CouchRest.new("http://127.0.0.1:5984")
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db = couch.database('word-count-example')
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db.delete! rescue nil
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db = couch.create_db('word-count-example')
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books = {
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'outline-of-science.txt' => 'http://www.gutenberg.org/files/20417/20417.txt',
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'ulysses.txt' => 'http://www.gutenberg.org/dirs/etext03/ulyss12.txt',
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'america.txt' => 'http://www.gutenberg.org/files/16960/16960.txt',
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'da-vinci.txt' => 'http://www.gutenberg.org/dirs/etext04/7ldv110.txt'
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}
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books.each do |file, url|
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pathfile = File.join(File.dirname(__FILE__),file)
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`curl #{url} > #{pathfile}` unless File.exists?(pathfile)
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end
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books.keys.each do |book|
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title = book.split('.')[0]
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puts title
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File.open(File.join(File.dirname(__FILE__),book),'r') do |file|
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lines = []
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chunk = 0
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while line = file.gets
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lines << line
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if lines.length > 10
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db.save({
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:title => title,
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:chunk => chunk,
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:text => lines.join('')
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})
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chunk += 1
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puts chunk
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lines = []
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end
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end
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end
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end
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# word_count = {
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# :map => 'function(doc){
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# var words = doc.text.split(/\W/);
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# words.forEach(function(word){
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# if (word.length > 0) emit([word,doc.title],1);
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# });
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# }',
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# :reduce => 'function(key,combine){
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# return sum(combine);
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# }'
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# }
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#
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# db.delete db.get("_design/word_count") rescue nil
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#
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# db.save({
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# "_id" => "_design/word_count",
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# :views => {
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# :count => word_count,
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# :words => {:map => word_count[:map]}
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# }
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# })
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# puts "The books have been stored in your CouchDB. To initiate the MapReduce process, visit http://127.0.0.1:5984/_utils/ in your browser and click 'word-count-example', then select view 'words' or 'count'. The process could take about 15 minutes on an average MacBook."
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#
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