Class: Swineherd::S3FileSystem::S3File
- Inherits:
-
Object
- Object
- Swineherd::S3FileSystem::S3File
- Defined in:
- lib/swineherd/filesystem/s3filesystem.rb
Instance Attribute Summary collapse
-
#fs ⇒ Object
Returns the value of attribute fs.
-
#handle ⇒ Object
Returns the value of attribute handle.
-
#path ⇒ Object
Returns the value of attribute path.
Instance Method Summary collapse
- #close ⇒ Object
-
#initialize(path, mode, fs, &blk) ⇒ S3File
constructor
In order to open input and output streams we must pass around the s3 fs object itself.
- #puts(string) ⇒ Object
-
#read ⇒ Object
Faster than iterating.
-
#readline ⇒ Object
This is a little hackety.
- #write(string) ⇒ Object
Constructor Details
#initialize(path, mode, fs, &blk) ⇒ S3File
In order to open input and output streams we must pass around the s3 fs object itself
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 190 def initialize path, mode, fs, &blk @fs = fs @path = path case mode when "r" then raise "#{fs.type(path)} is not a readable file - #{path}" unless fs.type(path) == "file" when "w" then raise "Path #{path} is a directory." unless (fs.type(path) == "file") || (fs.type(path) == "unknown") @handle = Tempfile.new('s3filestream') if block_given? yield self close end end end |
Instance Attribute Details
#fs ⇒ Object
Returns the value of attribute fs.
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 185 def fs @fs end |
#handle ⇒ Object
Returns the value of attribute handle.
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 185 def handle @handle end |
#path ⇒ Object
Returns the value of attribute path.
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 185 def path @path end |
Instance Method Details
#close ⇒ Object
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 236 def close if @handle @handle.read fs.s3.interface.put(fs.bucket(path), fs.key_path(path), File.open(@handle.path, 'r')) @handle.close end @handle = nil end |
#puts(string) ⇒ Object
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 232 def puts string write(string+"\n") end |
#read ⇒ Object
Faster than iterating
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 209 def read resp = fs.s3.interface.get_object(fs.bucket(path), fs.key_path(path)) resp end |
#readline ⇒ Object
This is a little hackety. That is, once you call (.each) on the object the full object starts downloading…
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 218 def readline @handle ||= fs.s3.interface.get_object(fs.bucket(path), fs.key_path(path)).each begin @handle.next rescue StopIteration, NoMethodError @handle = nil raise EOFError.new("end of file reached") end end |
#write(string) ⇒ Object
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# File 'lib/swineherd/filesystem/s3filesystem.rb', line 228 def write string @handle.write(string) end |