### Home Classes Methods

### In Files

- lib/chef/solr_query.rb
- lib/chef/solr_query/solr_http_request.rb
- lib/chef/solr_query/query_transform.rb

### Parent

Object

### Namespace

- CLASS Chef::SolrQuery::QueryTransform
- CLASS Chef::SolrQuery::SolrHTTPRequest

### Methods

- ::from_params
- ::new
- #commit
- #delete_database
- #filter_by
- #filter_by_type
- #filter_query
- #object_ids
- #objects
- #rebuild_index
- #reindex_all
- #results
- #search
- #to_hash
- #update_filter_query_from_params
- #update_query_from_params

### Included Modules

- Chef::Mixin::XMLEscape

### Files

- LICENSE
- README.rdoc

### Class/Module Index

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# Chef::SolrQuery

### Constants

BUILTIN_SEARCH_TYPES
COMMIT
DATA_BAG_ITEM
DEFAULT_PARAMS
END_DELETE_BY_QUERY
FILTER_PARAM_MAP
ID_KEY
START_DELETE_BY_QUERY
START_XML
VALID_PARAMS

### Attributes

params[RW]
query[RW]

### Public Class Methods

from_params(params, couchdb=nil) click to toggle source

    # File lib/chef/solr_query.rb, line 64
    def self.from_params(params, couchdb=nil)
      query = new(couchdb)
      query.params = VALID_PARAMS.inject({}) do |p, param_name|
        p[param_name] = params[param_name] if params.key?(param_name)
        p
      end
      query.update_filter_query_from_params
      query.update_query_from_params
      query
    end

new(couchdb = nil) click to toggle source

Create a new Query object - takes the solr_url and optional Chef::CouchDB object to inflate objects into.

    # File lib/chef/solr_query.rb, line 45
    def initialize(couchdb = nil)
      @filter_query = {}
      @params = {}

      if couchdb.nil?
        @database = Chef::Config[:couchdb_database]
        @couchdb = Chef::CouchDB.new(nil, Chef::Config[:couchdb_database])
      else
        unless couchdb.respond_to?(:couchdb_database)
          Chef::Log.warn("Passing the database name to Chef::Solr::Query initialization is deprecated. Please pass in the Chef::CouchDB object instead.")
          @database = couchdb
          @couchdb = Chef::CouchDB.new(nil, couchdb)
        else
          @database = couchdb.couchdb_database
          @couchdb = couchdb
        end
      end
    end

### Public Instance Methods

commit(opts={}) click to toggle source

    # File lib/chef/solr_query.rb, line 140
    def commit(opts={})
      SolrHTTPRequest.update("#{START_XML}#{COMMIT}")
    end

delete_database(db) click to toggle source

    # File lib/chef/solr_query.rb, line 144
    def delete_database(db)
      query_data = xml_escape("X_CHEF_database_CHEF_X:#{db}")
      xml = "#{START_XML}#{START_DELETE_BY_QUERY}#{query_data}#{END_DELETE_BY_QUERY}"
      SolrHTTPRequest.update(xml)
      commit
    end

filter_by(filter_query_params) click to toggle source

    # File lib/chef/solr_query.rb, line 75
    def filter_by(filter_query_params)
      filter_query_params.each do |key, value|
        @filter_query[FILTER_PARAM_MAP[key]] = value
      end
    end

filter_by_type(type) click to toggle source

    # File lib/chef/solr_query.rb, line 85
    def filter_by_type(type)
      case type
      when *BUILTIN_SEARCH_TYPES
        filter_by(:type => type)
      else
        filter_by(:type => DATA_BAG_ITEM, :data_bag => type)
      end
    end

filter_query() click to toggle source

    # File lib/chef/solr_query.rb, line 81
    def filter_query
      @filter_query.map { |param, value| "+#{param}:#{value}" }.join(' ')
    end

object_ids() click to toggle source

    # File lib/chef/solr_query.rb, line 114
    def object_ids
      @object_ids ||= results["response"]["docs"].map { |d| d[ID_KEY] }
    end

objects() click to toggle source

    # File lib/chef/solr_query.rb, line 104
    def objects
      if !object_ids.empty?
        @bulk_objects ||= @couchdb.bulk_get(object_ids)
        Chef::Log.debug { "Bulk get of objects: #{@bulk_objects.inspect}" }
        @bulk_objects
      else
        []
      end
    end

rebuild_index(db=Chef::Config[:couchdb_database]) click to toggle source

    # File lib/chef/solr_query.rb, line 151
    def rebuild_index(db=Chef::Config[:couchdb_database])
      delete_database(db)

      results = {}
      [Chef::ApiClient, Chef::Node, Chef::Role, Chef::Environment].each do |klass|
        results[klass.name] = reindex_all(klass) ? "success" : "failed"
      end
      databags = Chef::DataBag.cdb_list(true)
      Chef::Log.info("Reloading #{databags.size.to_s} #{Chef::DataBag} objects into the indexer")
      databags.each { |i| i.add_to_index; i.list(true).each { |x| x.add_to_index } }
      results[Chef::DataBag.name] = "success"
      results
    end

reindex_all(klass, metadata={}) click to toggle source

    # File lib/chef/solr_query.rb, line 165
    def reindex_all(klass, metadata={})
      begin
        items = klass.cdb_list(true)
        Chef::Log.info("Reloading #{items.size.to_s} #{klass.name} objects into the indexer")
        items.each { |i| i.add_to_index }
      rescue Net::HTTPServerException => e
        # 404s are okay, there might not be any of that kind of object...
        if e.message =~ /Not Found/
          Chef::Log.warn("Could not load #{klass.name} objects from couch for re-indexing (this is ok if you don't have any of these)")
          return false
        else
          raise e
        end
      rescue Exception => e
        Chef::Log.fatal("Chef encountered an error while attempting to load #{klass.name} objects back into the index")
        raise e
      end
      true
    end

results() click to toggle source

    # File lib/chef/solr_query.rb, line 118
    def results
      @results ||= SolrHTTPRequest.select(self.to_hash)
    end

search() click to toggle source

Search Solr for objects of a given type, for a given query.

    # File lib/chef/solr_query.rb, line 123
    def search
      { "rows" => objects, "start" => results["response"]["start"],
        "total" => results["response"]["numFound"] }
    end

to_hash() click to toggle source

    # File lib/chef/solr_query.rb, line 128
    def to_hash
      options = DEFAULT_PARAMS.merge(params)
      options[:fq] = filter_query
      options[:q] = @query
      options
    end

update_filter_query_from_params() click to toggle source

    # File lib/chef/solr_query.rb, line 94
    def update_filter_query_from_params
      filter_by(:database => @database)
      filter_by_type(params.delete(:type))
    end

update_query_from_params() click to toggle source

    # File lib/chef/solr_query.rb, line 99
    def update_query_from_params
      original_query = URI.decode(params.delete(:q) || "*:*")
      @query = Chef::SolrQuery::QueryTransform.transform(original_query)
    end

[Validate]

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