Class: Couchbase::Cluster

Inherits:
Object
  • Object
show all
Defined in:
lib/couchbase/cluster.rb,
lib/couchbase/query_options.rb,
lib/couchbase/search_options.rb,
lib/couchbase/analytics_options.rb more...

Defined Under Namespace

Classes: AnalyticsMetaData, AnalyticsMetrics, AnalyticsOptions, AnalyticsResult, AnalyticsWarning, ClusterOptions, DiagnosticsOptions, QueryMetaData, QueryMetrics, QueryOptions, QueryResult, QueryWarning, SearchFacet, SearchFacetResult, SearchMetaData, SearchMetrics, SearchOptions, SearchQuery, SearchResult, SearchRow, SearchRowLocation, SearchRowLocations, SearchSort

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.connect(connection_string, options) ⇒ Cluster

Connect to the Couchbase cluster

Parameters:

  • connection_string (String) —

    connection string used to locate the Couchbase Cluster

  • options (ClusterOptions) —

    custom options when creating the cluster connection

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 38

def self.connect(connection_string, options)
  Cluster.new(connection_string, options)
end

Instance Method Details

#analytics_indexes ⇒ Management::AnalyticsIndexManager

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 278

def analytics_indexes
  Management::AnalyticsIndexManager.new(@backend)
end

#analytics_query(statement, options = AnalyticsOptions.new) ⇒ AnalyticsResult

Performs an analytics query

Parameters:

  • statement (String) —

    the N1QL query statement

  • options (AnalyticsOptions) (defaults to: AnalyticsOptions.new) —

    the custom options for this query

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 115

def analytics_query(statement, options = AnalyticsOptions.new)
  resp = @backend.document_analytics(statement, {
      timeout: options.timeout,
      client_context_id: options.client_context_id,
      scan_consistency: options.scan_consistency,
      readonly: options.readonly,
      priority: options.priority,
      positional_parameters: options.export_positional_parameters,
      named_parameters: options.export_named_parameters,
      raw_parameters: options.raw_parameters,
  })

  AnalyticsResult.new do |res|
    res.transcoder = options.transcoder
    res.meta_data = AnalyticsMetaData.new do |meta|
      meta.status = resp[:meta][:status]
      meta.request_id = resp[:meta][:request_id]
      meta.client_context_id = resp[:meta][:client_context_id]
      meta.signature = JSON.parse(resp[:meta][:signature]) if resp[:meta][:signature]
      meta.profile = JSON.parse(resp[:meta][:profile]) if resp[:meta][:profile]
      meta.metrics = AnalyticsMetrics.new do |metrics|
        if resp[:meta][:metrics]
          metrics.elapsed_time = resp[:meta][:metrics][:elapsed_time]
          metrics.execution_time = resp[:meta][:metrics][:execution_time]
          metrics.result_count = resp[:meta][:metrics][:result_count]
          metrics.result_size = resp[:meta][:metrics][:result_size]
          metrics.error_count = resp[:meta][:metrics][:error_count]
          metrics.warning_count = resp[:meta][:metrics][:warning_count]
          metrics.processed_objects = resp[:meta][:metrics][:processed_objects]
        end
      end
      res[:warnings] = resp[:warnings].map { |warn| QueryWarning.new(warn[:code], warn[:message]) } if resp[:warnings]
    end
    res.instance_variable_set("@rows", resp[:rows])
  end
end

#bucket(name) ⇒ Bucket

Returns an instance of the Bucket

Parameters:

  • name (String) —

    name of the bucket

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 47

def bucket(name)
  Bucket.new(@backend, name)
end

#buckets ⇒ Management::BucketManager

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 268

def buckets
  Management::BucketManager.new(@backend)
end

#diagnostics(options = DiagnosticsOptions.new) ⇒ Object

[View source]

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# File 'lib/couchbase/cluster.rb', line 291

def diagnostics(options = DiagnosticsOptions.new) end

#disconnect ⇒ Object

[View source]

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# File 'lib/couchbase/cluster.rb', line 287

def disconnect
  @backend.close
end

#query(statement, options = QueryOptions.new) ⇒ QueryResult

Performs a query against the query (N1QL) services

Parameters:

  • statement (String) —

    the N1QL query statement

  • options (QueryOptions) (defaults to: QueryOptions.new) —

    the custom options for this query

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 57

def query(statement, options = QueryOptions.new)
  resp = @backend.document_query(statement, {
      timeout: options.timeout,
      adhoc: options.adhoc,
      client_context_id: options.client_context_id,
      max_parallelism: options.max_parallelism,
      readonly: options.readonly,
      scan_wait: options.scan_wait,
      scan_cap: options.scan_cap,
      pipeline_batch: options.pipeline_batch,
      pipeline_cap: options.pipeline_cap,
      metrics: options.metrics,
      profile: options.profile,
      positional_parameters: options.export_positional_parameters,
      named_parameters: options.export_named_parameters,
      raw_parameters: options.raw_parameters,
      scan_consistency: options.scan_consistency,
      mutation_state: (options.mutation_state.tokens.map { |t|
        {
            bucket_name: t.bucket_name,
            partition_id: t.partition_id,
            partition_uuid: t.partition_uuid,
            sequence_number: t.sequence_number,
        }
      } if options.mutation_state),
  })

  QueryResult.new do |res|
    res.meta_data = QueryMetaData.new do |meta|
      meta.status = resp[:meta][:status]
      meta.request_id = resp[:meta][:request_id]
      meta.client_context_id = resp[:meta][:client_context_id]
      meta.signature = JSON.parse(resp[:meta][:signature]) if resp[:meta][:signature]
      meta.profile = JSON.parse(resp[:meta][:profile]) if resp[:meta][:profile]
      meta.metrics = QueryMetrics.new do |metrics|
        if resp[:meta][:metrics]
          metrics.elapsed_time = resp[:meta][:metrics][:elapsed_time]
          metrics.execution_time = resp[:meta][:metrics][:execution_time]
          metrics.sort_count = resp[:meta][:metrics][:sort_count]
          metrics.result_count = resp[:meta][:metrics][:result_count]
          metrics.result_size = resp[:meta][:metrics][:result_size]
          metrics.mutation_count = resp[:meta][:metrics][:mutation_count]
          metrics.error_count = resp[:meta][:metrics][:error_count]
          metrics.warning_count = resp[:meta][:metrics][:warning_count]
        end
      end
      res[:warnings] = resp[:warnings].map { |warn| QueryWarning.new(warn[:code], warn[:message]) } if resp[:warnings]
    end
    res.instance_variable_set("@rows", resp[:rows])
  end
end

#query_indexes ⇒ Management::QueryIndexManager

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 273

def query_indexes
  Management::QueryIndexManager.new(@backend)
end

#search_indexes ⇒ Management::SearchIndexManager

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 283

def search_indexes
  Management::SearchIndexManager.new(@backend)
end

#search_query(index_name, query, options = SearchOptions.new) ⇒ SearchResult

Performs a Full Text Search (FTS) query

Parameters:

  • index_name (String) —

    the name of the search index

  • query (SearchQuery) —

    the query tree

  • options (SearchOptions) (defaults to: SearchOptions.new) —

    the query tree

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 159

def search_query(index_name, query, options = SearchOptions.new)
  resp = @backend.document_search(index_name, JSON.generate(query), {
      timeout: options.timeout,
      limit: options.limit,
      skip: options.skip,
      explain: options.explain,
      highlight_style: options.highlight_style,
      highlight_fields: options.highlight_fields,
      fields: options.fields,
      sort: (options.sort.map { |v| JSON.generate(v) } if options.sort),
      facets: (options.facets.map { |(k, v)| [k, JSON.generate(v)] } if options.facets),
      scan_consistency: options.scan_consistency,
      mutation_state: (options.mutation_state.tokens.map { |t|
        {
            bucket_name: t.bucket_name,
            partition_id: t.partition_id,
            partition_uuid: t.partition_uuid,
            sequence_number: t.sequence_number,
        }
      } if options.mutation_state),
  })

  SearchResult.new do |res|
    res.meta_data = SearchMetaData.new do |meta|
      meta.metrics.max_score = resp[:meta_data][:metrics][:max_score]
      meta.metrics.error_partition_count = resp[:meta_data][:metrics][:error_partition_count]
      meta.metrics.success_partition_count = resp[:meta_data][:metrics][:success_partition_count]
      meta.metrics.took = resp[:meta_data][:metrics][:took]
      meta.metrics.total_rows = resp[:meta_data][:metrics][:total_rows]
    end
    res.rows = resp[:rows].map do |r|
      SearchRow.new do |row|
        row.transcoder = options.transcoder
        row.index = r[:index]
        row.id = r[:id]
        row.score = r[:score]
        row.fragments = r[:fragments]
        row.locations = SearchRowLocations.new(
            r[:locations].map do |loc|
              SearchRowLocation.new do |location|
                location.field = loc[:field]
                location.term = loc[:term]
                location.position = loc[:position]
                location.start_offset = loc[:start_offset]
                location.end_offset = loc[:end_offset]
                location.array_positions = loc[:array_positions]
              end
            end
        )
        row.instance_variable_set("@fields", r[:fields])
        row.explanation = JSON.parse(r[:explanation]) if r[:explanation]
      end
    end
    if resp[:facets]
      res.facets = resp[:facets].each_with_object({}) do |(k, v), o|
        facet = case options.facets[k]
                when SearchFacet::SearchFacetTerm
                  SearchFacetResult::TermFacetResult.new do |f|
                    f.terms =
                        if v[:terms]
                          v[:terms].map do |t|
                            SearchFacetResult::TermFacetResult::TermFacet.new(t[:term], t[:count])
                          end
                        else
                          []
                        end
                  end
                when SearchFacet::SearchFacetDateRange
                  SearchFacetResult::DateRangeFacetResult.new do |f|
                    f.date_ranges =
                        if v[:date_ranges]
                          v[:date_ranges].map do |r|
                            SearchFacetResult::DateRangeFacetResult::DateRangeFacet.new(r[:name], r[:count], r[:start_time], r[:end_time])
                          end
                        else
                          []
                        end
                  end
                when SearchFacet::SearchFacetNumericRange
                  SearchFacetResult::NumericRangeFacetResult.new do |f|
                    f.numeric_ranges =
                        if v[:numeric_ranges]
                          v[:numeric_ranges].map do |r|
                            SearchFacetResult::NumericRangeFacetResult::NumericRangeFacet.new(r[:name], r[:count], r[:min], r[:max])
                          end
                        else
                          []
                        end
                  end
                else
                  next # ignore unknown facet result
                end
        facet.name = v[:name]
        facet.field = v[:field]
        facet.total = v[:total]
        facet.missing = v[:missing]
        facet.other = v[:other]
        o[k] = facet
      end
    end
  end
end

#users ⇒ Management::UserManager

Returns:

[View source]

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# File 'lib/couchbase/cluster.rb', line 263

def users
  Management::UserManager.new(@backend)
end