Class: Expressir::Model::SearchEngine

Inherits:
Object
  • Object
show all
Defined in:
lib/expressir/model/search_engine.rb

Overview

SearchEngine for querying EXPRESS elements in a repository Handles pattern matching, wildcards, regex, and element collection

Constant Summary collapse

ELEMENT_TYPES =

Element types that can be searched

%w[
  schema entity type attribute derived_attribute inverse_attribute
  function procedure rule constant parameter variable
  where_rule unique_rule enumeration_item interface
].freeze
TYPE_CATEGORIES =

Type categories for filtering

%w[select enumeration aggregate defined].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repository) ⇒ SearchEngine

Initialize search engine with a repository

Parameters:

  • Repository to search



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# File 'lib/expressir/model/search_engine.rb', line 22

def initialize(repository)
  @repository = repository
  @repository.build_indexes if @repository.entity_index.nil?
end

Instance Attribute Details

#repository ⇒ Object (readonly)

Returns the value of attribute repository.



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# File 'lib/expressir/model/search_engine.rb', line 18

def repository
  @repository
end

Instance Method Details

#count(type:, schema: nil, category: nil) ⇒ Integer

Count elements matching criteria

Parameters:

  • Element type

  • (defaults to: nil)

    Filter by schema

  • (defaults to: nil)

    Type category filter

Returns:

  • Count of elements



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# File 'lib/expressir/model/search_engine.rb', line 78

def count(type:, schema: nil, category: nil)
  collect_elements(type: type, schema: schema, category: category).size
end

#list(type:, schema: nil, category: nil) ⇒ Array<Hash>

List all elements of a specific type

Parameters:

  • Element type to list

  • (defaults to: nil)

    Filter by schema name

  • (defaults to: nil)

    Type category filter (for type elements)

Returns:

  • List of elements



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# File 'lib/expressir/model/search_engine.rb', line 32

def list(type:, schema: nil, category: nil)
  elements = collect_elements(type: type, schema: schema,
                              category: category)
  elements.map { |elem| element_to_hash(elem, type) }
end

#search(pattern:, type: nil, schema: nil, category: nil, case_sensitive: false, regex: false, exact: false) ⇒ Array<Hash>

Search for elements matching a pattern

Parameters:

  • Search pattern

  • (defaults to: nil)

    Filter by element type

  • (defaults to: nil)

    Limit to specific schema

  • (defaults to: nil)

    Type category filter

  • (defaults to: false)

    Enable case-sensitive matching

  • (defaults to: false)

    Treat pattern as regex

  • (defaults to: false)

    Exact match only

Returns:

  • Matching elements



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# File 'lib/expressir/model/search_engine.rb', line 47

def search(pattern:, type: nil, schema: nil, category: nil,
           case_sensitive: false, regex: false, exact: false)
  # Parse pattern
  pattern_parts = parse_pattern(pattern, case_sensitive: case_sensitive)

  # Determine types to search
  types_to_search = type ? [type] : ELEMENT_TYPES

  # Collect all matching elements
  results = []
  types_to_search.each do |elem_type|
    elements = collect_elements(type: elem_type, schema: schema,
                                category: category)

    elements.each do |elem|
      if matches_pattern?(elem, pattern_parts, elem_type,
                          case_sensitive: case_sensitive,
                          regex: regex, exact: exact)
        results << element_to_hash(elem, elem_type)
      end
    end
  end

  results
end

#search_advanced(pattern:, max_depth: nil, ranked: false) ⇒ Array<Hash>

Advanced search with multiple filters

Parameters:

  • Search pattern

  • (defaults to: nil)

    Maximum path depth

  • (defaults to: false)

    Enable relevance ranking

  • Additional filters and search options

Returns:

  • Filtered and optionally ranked results



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# File 'lib/expressir/model/search_engine.rb', line 111

def search_advanced(pattern:, max_depth: nil, ranked: false, **)
  results = search(pattern: pattern, **)

  results = filter_by_depth(results, max_depth) if max_depth
  results = rank_results(results, pattern, 10, 5) if ranked

  results
end

#search_ranked(pattern:, boost_exact: 10, boost_prefix: 5) ⇒ Array<Hash>

Search with relevance ranking

Parameters:

  • Search pattern

  • (defaults to: 10)

    Score boost for exact matches

  • (defaults to: 5)

    Score boost for prefix matches

  • Additional search options

Returns:

  • Ranked results with :relevance_score



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# File 'lib/expressir/model/search_engine.rb', line 100

def search_ranked(pattern:, boost_exact: 10, boost_prefix: 5, **)
  results = search(pattern: pattern, **)
  rank_results(results, pattern, boost_exact, boost_prefix)
end

#search_with_depth(pattern:, max_depth:) ⇒ Array<Hash>

Search with depth filtering

Parameters:

  • Search pattern

  • Maximum path depth (1=schema, 2=entity, 3=attribute)

  • Additional search options

Returns:

  • Filtered results



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# File 'lib/expressir/model/search_engine.rb', line 87

def search_with_depth(pattern:, max_depth:, **)
  return [] if max_depth <= 0

  results = search(pattern: pattern, **)
  filter_by_depth(results, max_depth)
end