Class: FileMonitoring::DirStat
- Defined in:
- lib/file_monitoring/monitor_path.rb
Overview
This class holds current state of directory and methods to control changes
Constant Summary
Constants inherited from FileStat
FileStat::DEFAULT_STABLE_STATE
Instance Attribute Summary
Attributes inherited from FileStat
#cycles, #modification_time, #path, #size, #stable_state, #state
Class Method Summary collapse
Instance Method Summary collapse
-
#has_dir?(path) ⇒ Boolean
Checks that there is a sub-folder with a given path.
-
#has_file?(path) ⇒ Boolean
Checks that there is a file with a given path.
-
#initialize(path, stable_state = DEFAULT_STABLE_STATE) ⇒ DirStat
constructor
Initializes new directory monitoring object ==== Arguments:.
-
#monitor ⇒ Object
Checks that directory structure (i.e. files and directories located directly under this directory) wasn’t changed since the last iteration.
-
#to_s(indent = 0) ⇒ Object
Returns string which contains path and state of this directory as well as it’s structure.
Methods inherited from FileStat
#==, #changed?, #set_event_queue, set_log, #set_output_queue
Constructor Details
#initialize(path, stable_state = DEFAULT_STABLE_STATE) ⇒ DirStat
Initializes new directory monitoring object
Arguments:
-
path
- File location -
stable_state
- Number of iterations to move unchanged directory to stable state
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# File 'lib/file_monitoring/monitor_path.rb', line 147 def initialize(path, stable_state = DEFAULT_STABLE_STATE) ObjectSpace.define_finalizer(self, self.class.method(:finalize).to_proc) if Params['enable_monitoring'] Params['process_vars'].inc('obj add DirStat') end super @dirs = nil @files = nil @non_utf8_paths = {} ObjectSpace.define_finalizer(self, self.class.method(:finalize).to_proc) end |
Class Method Details
.finalize(id) ⇒ Object
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# File 'lib/file_monitoring/monitor_path.rb', line 161 def self.finalize(id) if Params['enable_monitoring'] Params['process_vars'].inc('obj rem DirStat') end end |
Instance Method Details
#has_dir?(path) ⇒ Boolean
Checks that there is a sub-folder with a given path.
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# File 'lib/file_monitoring/monitor_path.rb', line 188 def has_dir?(path) @dirs.has_key?(path) end |
#has_file?(path) ⇒ Boolean
Checks that there is a file with a given path.
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# File 'lib/file_monitoring/monitor_path.rb', line 193 def has_file?(path) @files.has_key?(path) end |
#monitor ⇒ Object
Checks that directory structure (i.e. files and directories located directly under this directory) wasn’t changed since the last iteration.
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# File 'lib/file_monitoring/monitor_path.rb', line 213 def monitor was_changed = false new_state = nil self_stat = File.lstat(@path) rescue nil if self_stat == nil new_state = FileStatEnum::NON_EXISTING @files = nil @dirs = nil @cycles = 0 elsif @files == nil new_state = FileStatEnum::NEW @files = Hash.new @dirs = Hash.new @cycles = 0 update_dir elsif update_dir new_state = FileStatEnum::CHANGED @cycles = 0 else new_state = FileStatEnum::UNCHANGED @cycles += 1 if @cycles >= @stable_state new_state = FileStatEnum::STABLE end end # The assignment self.state= new_state end |
#to_s(indent = 0) ⇒ Object
Returns string which contains path and state of this directory as well as it’s structure.
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# File 'lib/file_monitoring/monitor_path.rb', line 198 def to_s(indent = 0) indent_increment = 2 child_indent = indent + indent_increment res = super @files.each_value do |file| res += "\n" + file.to_s(child_indent) end if @files @dirs.each_value do |dir| res += "\n" + dir.to_s(child_indent) end if @dirs res end |