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#
# Author:: Adam Jacob (<adam@hjksolutions.com>)
# Copyright:: Copyright (c) 2008 HJK Solutions, LLC
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require File.join(File.dirname(__FILE__), "mixin", "params_validate")
require 'digest/sha2'
require 'json'
class Chef
class FileStore
class << self
include Chef::Mixin::ParamsValidate
def store(obj_type, name, object)
validate(
{
:obj_type => obj_type,
:name => name,
:object => object,
},
{
:object => { :respond_to => :to_json },
}
)
store_path = create_store_path(obj_type, name)
io = File.open(store_path, "w")
io.puts object.to_json
io.close
end
def load(obj_type, name)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
store_path = create_store_path(obj_type, name)
raise "Cannot find #{store_path} for #{obj_type} #{name}!" unless File.exists?(store_path)
object = JSON.parse(IO.read(store_path))
end
def delete(obj_type, name)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
store_path = create_store_path(obj_type, name)
if File.exists?(store_path)
File.unlink(store_path)
end
end
def list(obj_type, inflate=false)
validate(
{
:obj_type => obj_type,
},
{
:obj_type => { :kind_of => String }
}
)
keys = Array.new
Dir[File.join(Chef::Config[:file_store_path], obj_type, '**', '*')].each do |f|
if File.file?(f)
if inflate
keys << load(obj_type, File.basename(f))
else
keys << File.basename(f)
end
end
end
keys
end
def has_key?(obj_type, name)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
Dir[File.join(Chef::Config[:file_store_path], obj_type, '**', '*')].each do |f|
if File.file?(f)
return true if File.basename(f) == name
end
end
return false
end
def create_store_path(obj_type, key)
shadigest = Digest::SHA2.hexdigest("#{obj_type}#{key}")
file_path = [
Chef::Config[:file_store_path],
obj_type,
shadigest[0,1],
shadigest[1,3]
]
file_path.each_index do |i|
create_path = File.join(file_path[0, i + 1])
Dir.mkdir(create_path) unless File.directory?(create_path)
end
file_path << key
File.join(*file_path)
end
end
end
end
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