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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 CouchDB
include Chef::Mixin::ParamsValidate
def initialize(url=nil)
url ||= Chef::Config[:couchdb_url]
@rest = Chef::REST.new(url)
end
def create_db
@database_list = @rest.get_rest("_all_dbs")
unless @database_list.detect { |db| db == Chef::Config[:couchdb_database] }
response = @rest.put_rest(Chef::Config[:couchdb_database], Hash.new)
end
Chef::Config[:couchdb_database]
end
def create_design_document(name, data)
to_update = true
begin
old_doc = @rest.get_rest("#{Chef::Config[:couchdb_database]}/_design%2F#{name}")
if data["version"] != old_doc["version"]
data["_rev"] = old_doc["_rev"]
Chef::Log.debug("Updating #{name} views")
else
to_update = false
end
rescue
Chef::Log.debug("Creating #{name} views for the first time")
end
if to_update
@rest.put_rest("#{Chef::Config[:couchdb_database]}/_design%2F#{name}", data)
end
true
end
def store(obj_type, name, object)
validate(
{
:obj_type => obj_type,
:name => name,
:object => object,
},
{
:object => { :respond_to => :to_json },
}
)
@rest.put_rest("#{Chef::Config[:couchdb_database]}/#{obj_type}_#{safe_name(name)}", object)
end
def load(obj_type, name)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
@rest.get_rest("#{Chef::Config[:couchdb_database]}/#{obj_type}_#{safe_name(name)}")
end
def delete(obj_type, name, rev=nil)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
unless rev
last_obj = @rest.get_rest("#{Chef::Config[:couchdb_database]}/#{obj_type}_#{safe_name(name)}")
if last_obj.respond_to?(:couchdb_rev)
rev = last_obj.couchdb_rev
else
rev = last_obj['_rev']
end
end
@rest.delete_rest("#{Chef::Config[:couchdb_database]}/#{obj_type}_#{safe_name(name)}?rev=#{rev}")
end
def list(view, inflate=false)
validate(
{
:view => view,
},
{
:view => { :kind_of => String }
}
)
if inflate
@rest.get_rest("#{Chef::Config[:couchdb_database]}/_view/#{view}/all")
else
@rest.get_rest("#{Chef::Config[:couchdb_database]}/_view/#{view}/all_id")
end
end
def has_key?(obj_type, name)
validate(
{
:obj_type => obj_type,
:name => name,
},
{
:obj_type => { :kind_of => String },
:name => { :kind_of => String },
}
)
begin
@rest.get_rest("#{Chef::Config[:couchdb_database]}/#{obj_type}_#{safe_name(name)}")
true
rescue
false
end
end
private
def safe_name(name)
name.gsub(/\./, "_")
end
end
end
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