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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2009-2011 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 'net/http'
require 'uri'
require 'chef/json_compat'
require 'chef/config'
class Chef
class SolrQuery
class SolrHTTPRequest
CLASS_FOR_METHOD = {:GET => Net::HTTP::Get, :POST => Net::HTTP::Post}
TEXT_XML = {"Content-Type" => "text/xml"}
def self.solr_url=(solr_url)
@solr_url = solr_url
@http_client = nil
@url_prefix = nil
end
def self.solr_url
@solr_url || Chef::Config[:solr_url]
end
def self.http_client
@http_client ||= begin
uri = URI.parse(solr_url)
http_client = Net::HTTP.new(uri.host, uri.port)
http_client.use_ssl = true if uri.port == 443
http_client
end
end
def self.url_prefix
@url_prefix ||= begin
uri = URI.parse(solr_url)
if uri.path == ""
"/solr"
else
uri.path.gsub(%r{/$}, '')
end
end
end
def self.select(params={})
url = "#{url_prefix}/select?#{url_join(params)}"
Chef::Log.debug("Sending #{url} to Solr")
request = new(:GET, url)
json_response = request.run("Search Query to Solr '#{solr_url}#{url}'")
Chef::JSONCompat.from_json(json_response)
end
def self.update(doc)
url = "#{url_prefix}/update"
Chef::Log.debug("POSTing document to SOLR:\n#{doc}")
request = new(:POST, url, TEXT_XML) { |req| req.body = doc.to_s }
request.run("POST to Solr '#{solr_url}#{url}', data: #{doc}")
end
def self.url_join(params_hash={})
params = params_hash.inject("") do |param_str, params|
param_str << "#{params[0]}=#{escape(params[1])}&"
end
params.chop! # trailing &
params
end
def self.escape(s)
s.to_s.gsub(/([^ a-zA-Z0-9_.-]+)/n) {
'%'+$1.unpack('H2'*$1.size).join('%').upcase
}.tr(' ', '+')
end
def initialize(method, url, headers=nil)
args = headers ? [url, headers] : url
@request = CLASS_FOR_METHOD[method].new(*args)
yield @request if block_given?
end
def http_client
self.class.http_client
end
def solr_url
self.class.solr_url
end
def run(description="HTTP Request to Solr")
response = http_client.request(@request)
request_failed!(response, description) unless response.kind_of?(Net::HTTPSuccess)
response.body
rescue NoMethodError => e
# http://redmine.ruby-lang.org/issues/show/2708
# http://redmine.ruby-lang.org/issues/show/2758
if e.to_s =~ /#{Regexp.escape(%q|undefined method 'closed?' for nil:NilClass|)}/
Chef::Log.fatal("#{description} failed. Chef::Exceptions::SolrConnectionError exception: Errno::ECONNREFUSED (net/http undefined method closed?) attempting to contact #{solr_url}")
Chef::Log.debug("Rescued error in http connect, treating it as Errno::ECONNREFUSED to hide bug in net/http")
Chef::Log.debug(e.backtrace.join("\n"))
raise Chef::Exceptions::SolrConnectionError, "Errno::ECONNREFUSED: Connection refused attempting to contact #{solr_url}"
else
raise
end
end
def request_failed!(response, description='HTTP call')
Chef::Log.fatal("#{description} failed (#{response.class} #{response.code} #{response.message})")
response.error!
rescue Timeout::Error, Errno::EINVAL, EOFError, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError, Net::ProtocolError, Errno::ECONNREFUSED, Errno::ECONNRESET, Errno::ETIMEDOUT => e
Chef::Log.debug(e.backtrace.join("\n"))
raise Chef::Exceptions::SolrConnectionError, "#{e.class.name}: #{e.to_s}"
end
end
end
end
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