Class: StructurePrint

Inherits:
Object
  • Object
show all
Includes:
ConfigReader
Defined in:
lib/print.rb

Instance Method Summary collapse

Methods included from ConfigReader

#config_dir, #config_file, #mkdir, #param, #user_file

Constructor Details

#initialize(sep_char, header = true, format = nil, columns_to_print = nil) ⇒ StructurePrint

Returns a new instance of StructurePrint.



199
200
201
202
203
204
205
206
 
# File 'lib/print.rb', line 199

def initialize(sep_char, header=true, format=nil, columns_to_print=nil)
  @sep_char = sep_char
  @header = header
  @format = format
  @rownum = 0
  @columns_to_print = columns_to_print
  
end

Instance Method Details

#extract_printed_columns(indexes, values, index_value, add_index = false) ⇒ Object 



242
243
244
245
246
247
248
249
250
251
 
# File 'lib/print.rb', line 242

def extract_printed_columns(indexes, values, index_value, add_index = false)
  print_values = []
  if add_index
    print_values << index_value.to_s
  end
  indexes.each { |index|
    print_values << values[index]
  }
  print_values
end

#get_indexes(level, struct) ⇒ Object 



221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
 
# File 'lib/print.rb', line 221

def get_indexes(level, struct)
  result = (0...struct.keys.length).to_a
  if @columns_to_print
    if @columns_to_print == '*'
      return result
    end
    column_names = @columns_to_print.split(',')
    return indexes_from_column_names(column_names, struct)
  end
  print_config_file = config_file("print.cfg")
  if File.exists? print_config_file
    level.gsub!(/\[\d*\]/, '')
    level_map = JSON.parse(File.open(print_config_file).read)
    if level_map.has_key? level
      column_names = level_map[level]
      return indexes_from_column_names(column_names, struct)
    end
  end
  result
end

#hash_element_array(hash) ⇒ Object 



264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
 
# File 'lib/print.rb', line 264

def hash_element_array(hash)
    values = []
    hash.keys.each { |key|
      value = hash[key]
      if (value.nil?)
        value = "null"
      elsif (value.class == Array)
        value = "[#{value.length}]"
      elsif (value.class == String)
      elsif (value.class == Fixnum)
        value = value.to_s
      elsif (value.class == Hash)
        value = "..."
      elsif value.class == TrueClass
        value = "true"
      elsif value.class == FalseClass
        value = "false"
      else
        value = "<#{value.class}>"
      end
      values << value
    }
  values
end

#indexes_from_column_names(names, struct) ⇒ Object 



208
209
210
211
212
213
214
215
216
217
218
219
 
# File 'lib/print.rb', line 208

def indexes_from_column_names(names, struct)
  result = [ ]
  names.each  { |name|
    index = struct.keys.index name
    if index.is_a? Integer
      result << index
    else
      raise "column (#{name}) not found"
    end
  }
  result
end

#istructure_print(struct, level, add_index = false) ⇒ Object 



293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
 
# File 'lib/print.rb', line 293

def istructure_print(struct, level, add_index = false)
  if (struct.class == Array)
    struct.each_with_index { |elt, index|
      istructure_print(elt, level, (struct.length > 1) && @columns_to_print.nil?)
    }
  elsif (struct.class == Hash)
    # print top level elements of hash
    if @titles.nil?
      @titles = true
      @indexes = get_indexes(level, struct)
      titles = extract_printed_columns(@indexes, struct.keys, "item", add_index)
      if @table
        @table.set_titles(@sep_char, titles)
      elsif @format == :csv && @header
        puts titles.to_csv
      end
    end
    values = hash_element_array(struct)
    @rownum += 1
    values_to_print = extract_printed_columns(@indexes, values, @rownum, add_index)
    if @table
      @table.append(values_to_print)
    elsif @format == :csv
      puts values_to_print.to_csv
    else
      puts values_to_print.join("|")
    end
  else
    puts struct.to_s
  end
end

#print_values(values) ⇒ Object 



289
290
291
 
# File 'lib/print.rb', line 289

def print_values(values)
  puts values.join("|")
end

#structure_print(struct, level) ⇒ Object 



253
254
255
256
257
258
259
260
261
262
 
# File 'lib/print.rb', line 253

def structure_print(struct, level)
  if @header && @format.nil?
    @table = TablePrint.new
  end
  if $debug > 0
    puts "level = #{level}"
  end
  istructure_print(struct, level)
  @table.print_table if @table
end