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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2009 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'rubygems'
require 'chef/log'
require 'chef/config'
require 'chef/couchdb'
require 'chef/role'
require 'chef/node'
require 'chef/data_bag'
require 'chef/data_bag_item'
require 'net/http'
require 'libxml'
require 'uri'
class Chef
class Solr
attr_accessor :solr_url, :http
def initialize(solr_url=Chef::Config[:solr_url])
@solr_url = solr_url
uri = URI.parse(@solr_url)
@http = Net::HTTP.new(uri.host, uri.port)
end
def solr_select(database, type, options={})
options[:wt] = :ruby
options[:indent] = "off"
if type.kind_of?(Array)
options[:fq] = "+X_CHEF_database_CHEF_X:#{database} +X_CHEF_type_CHEF_X:#{type[0]} +data_bag:#{type[1]}"
else
options[:fq] = "+X_CHEF_database_CHEF_X:#{database} +X_CHEF_type_CHEF_X:#{type}"
end
select_url = "/solr/select?#{to_params(options)}"
Chef::Log.debug("Sending #{select_url} to Solr")
req = Net::HTTP::Get.new(select_url)
res = @http.request(req)
unless res.kind_of?(Net::HTTPSuccess)
res.error!
end
eval(res.body)
end
def post_to_solr(doc)
req = Net::HTTP::Post.new("/solr/update", "Content-Type" => "text/xml")
req.body = doc.to_s
res = @http.request(req)
unless res.kind_of?(Net::HTTPSuccess)
res.error!
end
res
end
def solr_add(data)
data = [data] unless data.is_a?(Array)
xml_document = LibXML::XML::Document.new
xml_add = LibXML::XML::Node.new("add")
data.each do |doc|
xml_doc = LibXML::XML::Node.new("doc")
doc.each do |field, values|
values = [values] unless values.kind_of?(Array)
values.each do |v|
xml_field = LibXML::XML::Node.new("field")
xml_field["name"] = field
xml_field.content = v.to_s
xml_doc << xml_field
end
end
xml_add << xml_doc
end
xml_document.root = xml_add
post_to_solr(xml_document.to_s(:indent => false))
end
def solr_commit(opts={})
post_to_solr(generate_single_element("commit", opts))
end
def solr_optimize(opts={})
post_to_solr(generate_single_element("optimize", opts))
end
def solr_rollback
post_to_solr(generate_single_element("rollback"))
end
def solr_delete_by_id(ids)
post_to_solr(generate_delete_document("id", ids))
end
def solr_delete_by_query(queries)
post_to_solr(generate_delete_document("query", queries))
end
def rebuild_index(url=Chef::Config[:couchdb_url], db=Chef::Config[:couchdb_database])
solr_delete_by_query("X_CHEF_database_CHEF_X:#{db}")
couchdb = Chef::CouchDB.new(url, db)
Chef::Node.list(true, couchdb).each { |i| i.save }
Chef::Role.list(true, couchdb).each { |i| i.save }
Chef::DataBag.list(true, couchdb).each { |i| i.save; i.list(true).each { |x| x.save } }
true
end
private
def generate_single_element(elem, opts={})
xml_document = LibXML::XML::Document.new
xml_elem = LibXML::XML::Node.new(elem)
opts.each { |k,v| xml_elem[k.to_s] = v.to_s }
xml_document.root = xml_elem
xml_document.to_s(:indent => false)
end
def generate_delete_document(type, list)
list = [list] unless list.is_a?(Array)
xml_document = LibXML::XML::Document.new
xml_delete = LibXML::XML::Node.new("delete")
xml_document.root = xml_delete
list.each do |id|
xml_id = LibXML::XML::Node.new(type)
xml_id.content = id.to_s
xml_delete << xml_id
end
xml_document.to_s(:indent => false)
end
# Thanks to Merb!
def to_params(params_hash)
params = ''
stack = []
params_hash.each do |k, v|
if v.is_a?(Hash)
stack << [k,v]
else
params << "#{k}=#{escape(v)}&"
end
end
stack.each do |parent, hash|
hash.each do |k, v|
if v.is_a?(Hash)
stack << ["#{parent}[#{k}]", escape(v)]
else
params << "#{parent}[#{k}]=#{escape(v)}&"
end
end
end
params.chop! # trailing &
params
end
# escapes a query key/value for http
# Thanks to RSolr!
def escape(s)
s.to_s.gsub(/([^ a-zA-Z0-9_.-]+)/n) {
'%'+$1.unpack('H2'*$1.size).join('%').upcase
}.tr(' ', '+')
end
end
end
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