Class: AppCfg::JavaProperties

Inherits:
Object
  • Object
show all
Defined in:
lib/appcfg/sources/properties_source.rb

Overview

JavaProperties class from github.com/axic/rsnippets/blob/master/javaproperties.rb (originally from devender.wordpress.com/2006/05/01/reading-and-writing-java-property-files-with-ruby/)

Consider splitting into own project and including as a gem. Some features missing: escape handling error handling, perhaps whitespace edge cases as well.

Consider checking for presence of JRuby and invoking java.util.Properties if available.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ JavaProperties

Returns a new instance of JavaProperties.



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# File 'lib/appcfg/sources/properties_source.rb', line 29

def initialize(filename)
  @filename = filename
  @properties = {}

  IO.foreach(@filename) do |line|
    @properties[$1.strip] = $2 if line = ~ /([^=]*)=(.*)\/\/(.*)/ || line =~ /([^=]*)=(.*)/
  end
end

Instance Attribute Details

#filename ⇒ Object

Returns the value of attribute filename.



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# File 'lib/appcfg/sources/properties_source.rb', line 27

def filename
  @filename
end

#properties ⇒ Object

Returns the value of attribute properties.



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# File 'lib/appcfg/sources/properties_source.rb', line 27

def properties
  @properties
end

Instance Method Details

#add(key, value = nil) ⇒ Object 



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# File 'lib/appcfg/sources/properties_source.rb', line 44

def add(key, value = nil)
  return unless key.length > 0
  @properties[key] = value
end

#remove(key) ⇒ Object 



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# File 'lib/appcfg/sources/properties_source.rb', line 49

def remove(key)
  return unless key.length > 0
  @properties.delete(key)
end

#save ⇒ Object 



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# File 'lib/appcfg/sources/properties_source.rb', line 54

def save
  file = File.new(@filename, "w+")
  @properties.each { |key, value| file.puts "#{key}=#{value}\n" }
  file.close
end

#to_s ⇒ Object 



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# File 'lib/appcfg/sources/properties_source.rb', line 38

def to_s
  output = "File name #{@file}\n"
  @properties.each { |key, value| output += " #{key} = #{value}\n" }
  output
end