Class: Merb::Cache::GzipStore
- Inherits:
-
AbstractStrategyStore
- Object
- AbstractStrategyStore
- Merb::Cache::GzipStore
- Defined in:
- lib/merb-cache/stores/strategy/gzip_store.rb
Overview
Store that compresses cached data using GZip. Usually wraps other stores and good for caching of large pages.
Instance Method Summary collapse
- #compress(data) ⇒ Object
- #decompress(data) ⇒ Object
- #delete(key, parameters = {}) ⇒ Object
- #delete_all! ⇒ Object
- #exists?(key, parameters = {}) ⇒ Boolean
- #fetch(key, parameters = {}, conditions = {}, &blk) ⇒ Object
- #read(key, parameters = {}) ⇒ Object
- #writable?(key, parameters = {}, conditions = {}) ⇒ Boolean
- #write(key, data = nil, parameters = {}, conditions = {}) ⇒ Object
- #write_all(key, data = nil, parameters = {}, conditions = {}) ⇒ Object
Instance Method Details
#compress(data) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 47 def compress(data) return if data.nil? output = StringIO.new gz = Zlib::GzipWriter.new(output) gz.write(Marshal.dump(data)) gz.close output.string end |
#decompress(data) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 57 def decompress(data) return if data.nil? Marshal.load(Zlib::GzipReader.new(StringIO.new(data)).read) end |
#delete(key, parameters = {}) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 39 def delete(key, parameters = {}) @stores.map {|c| c.delete(key, parameters)}.any? end |
#delete_all! ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 43 def delete_all! @stores.map {|c| c.delete_all! }.all? end |
#exists?(key, parameters = {}) ⇒ Boolean
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 35 def exists?(key, parameters = {}) @stores.capture_first {|c| c.exists?(key, parameters)} end |
#fetch(key, parameters = {}, conditions = {}, &blk) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 30 def fetch(key, parameters = {}, conditions = {}, &blk) wrapper_blk = lambda { compress(blk.call) } decompress(read(key, parameters) || @stores.capture_first {|s| s.fetch(key, parameters, conditions, &wrapper_blk)}) end |
#read(key, parameters = {}) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 14 def read(key, parameters = {}) decompress(@stores.capture_first {|c| c.read(key, parameters)}) end |
#writable?(key, parameters = {}, conditions = {}) ⇒ Boolean
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 10 def writable?(key, parameters = {}, conditions = {}) true end |
#write(key, data = nil, parameters = {}, conditions = {}) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 18 def write(key, data = nil, parameters = {}, conditions = {}) if writable?(key, parameters, conditions) @stores.capture_first {|c| c.write(key, compress(data), parameters, conditions)} end end |
#write_all(key, data = nil, parameters = {}, conditions = {}) ⇒ Object
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# File 'lib/merb-cache/stores/strategy/gzip_store.rb', line 24 def write_all(key, data = nil, parameters = {}, conditions = {}) if writable?(key, parameters, conditions) @stores.map {|c| c.write_all(key, compress(data), parameters, conditions)}.all? end end |