54 lines
1.4 KiB
Ruby
54 lines
1.4 KiB
Ruby
require File.dirname(__FILE__) + '/../../couchrest'
|
|
|
|
couch = CouchRest.new("http://localhost:5984")
|
|
db = couch.database('word-count-example')
|
|
# db.delete! rescue nil
|
|
# db = couch.create_db('word-count-example')
|
|
|
|
%w{america.txt da-vinci.txt outline-of-science.txt ulysses.txt}.each do |book|
|
|
title = book.split('.')[0]
|
|
puts title
|
|
File.open(File.join(File.dirname(__FILE__),book),'r') do |file|
|
|
lines = []
|
|
chunk = 0
|
|
while line = file.gets
|
|
lines << line
|
|
if lines.length > 10
|
|
db.save({
|
|
:title => title,
|
|
:chunk => chunk,
|
|
:text => lines.join('')
|
|
})
|
|
chunk += 1
|
|
lines = []
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# word_count = {
|
|
# :map => 'function(doc){
|
|
# var words = doc.text.split(/\W/);
|
|
# words.forEach(function(word){
|
|
# if (word.length > 0) emit([word,doc.title],1);
|
|
# });
|
|
# }',
|
|
# :reduce => 'function(key,combine){
|
|
# return sum(combine);
|
|
# }'
|
|
# }
|
|
#
|
|
# db.delete db.get("_design/word_count") rescue nil
|
|
#
|
|
# db.save({
|
|
# "_id" => "_design/word_count",
|
|
# :views => {
|
|
# :count => word_count,
|
|
# :words => {:map => word_count[:map]}
|
|
# }
|
|
# })
|
|
|
|
puts "The books have been stored in your CouchDB. To initiate the MapReduce process, visit http://localhost: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."
|
|
|
|
|