Results for dev-data-client

Consul client with offline mode for dev, and recursive queries, presenting data as a hash

# Chef Data Region ## Description Chef Data Region extends the `Chef::DSL::DataQuery` module's `data_bag_item` method with the ability to dynamically expand the data bag name in a configurable, environment-specific manner. ## Motivation This gem exists to address the following scenario: An organization maintains data in Chef data bag items. The data is deployed to several data center environments and is stored in data bags whose names reference the environments. The organization wants to write environment-agnostic recipes that access the data bags without explicitly referencing the data bags by their environment names. As a concrete example, imagine the organization maintains encrypted data for three deployment environments: development, staging, and production. It maintains this data in three data bags, one for each environment, with data for services named `gadget` and `widget` in items: | Environment | Bag | Item | |-------------+----------------+--------| | Development | secure-dev | gadget | | Development | secure-dev | widget | | Production | secure-prod | gadget | | Production | secure-prod | widget | | Staging | secure-staging | gadget | | Staging | secure-staging | widget | The items are encrypted with a key unique to that environment to maximize security. Now consider how a recipe would access these bags. When then recipe is running, it needs to know the data center environment in order to construct the bag name. The organization would most likely assign the enviroment name to a node attribute. In a naive implementation, each recipe would include logic that examined the attribute's value to determine which bag to load. This would obviously duplicate code. Imagine instead that the organization wants to reference the bag by the name `secure` and rely on an _abstraction_ to translate `secure` into the environment-specific bag name. This gem provides that abstraction. ## Features This gem overrides the `data_bag_item` method with configurable logic that dynamically decides which bag to load. It retains API compatibility with `Chef::DSL::DataQuery#data_bag_item`, so existing recipes that call `data_bag_item` work without modification. The gem imposes no constraints on data bag item structure. ## Configuration Assign the region name to a node attribute that varies by environment: node.default['local'][region'] = 'staging' Add the following configuration to Chef Client's `client.rb` file. * Require the gem: require 'chef/data_region' * Configure the gem with a hash that maps a bag name to an expansion pattern: Chef::DataRegion.add( 'secure', { attribute: %w(local region), pattern: 'secure-%<attribute>s' } ) ## Bag name expansion The gem expands bag names using Ruby's `format` method. _More pending..._

= Biological Extensions to the InterMine Webservice Client Library This library is a set of extensions to the InterMine Webservices client, providing access for data in biological formats. It directly extends the InterMine classes, providing extra methods to the Query class. == Example Get all sequences for proteins on "h", "r", "eve", "bib" and "zen": require "rubygems" require "intermine/service" require "intermine/bio" s = Service.new("www.flymine.org/query") puts s.query("Gene").select("proteins").where(:symbol => %w{h r eve bib zen}).fasta Process the locations of these genes one at a time: s.query.select("Gene").where(:symbol => %w{h r eve bib zen}).bed do |line| process line end == Who is this for? InterMine data warehouses are typically constructed to hold Biological data, and as this library facilitates programmatic access to these data, this install is primarily aimed at bioinformaticians. In particular, users of the following services may find it especially useful: * FlyMine (http://www.flymine.org/query) * YeastMine (http://yeastmine.yeastgenome.org/yeastmine) * RatMine (http://ratmine.mcw.edu/ratmine) * modMine (http://intermine.modencode.org/release-23) * metabolicMine (http://www.metabolicmine.org/beta) These extensions are aimed at bioinformaticians looking to integrate these sources of data into other workflows. For details on constructing queries, see the intermine documentation. == Support Support is available on our development mailing list: dev@intermine.org == License This code is Open Source under the LGPL. Source code for all InterMine code can be checked out from svn://subversion.flymine.org/flymine

= Webservice Client Library for InterMine Data-Warehouses This library provides an interface to the InterMine webservices API. It makes construction and execution of queries more straightforward, safe and convenient, and allows for results to be used directly in Ruby code. As well as traditional row based access, the library provides an object-orientated record result format (similar to ActiveRecords), and allows for fast, memory efficient iteration of result sets. == Example Get all protein domains associated with a set of genes and print their names: require "intermine/service" Service.new("www.flymine.org/query"). new_query("Pathway") select(:name). where("genes.symbol" => ["zen", "hox", "h", "bib"]). each_row { |row| puts row[:name]} == Who is this for? InterMine data warehouses are typically constructed to hold Biological data, and as this library facilitates programmatic access to these data, this install is primarily aimed at bioinformaticians. In particular, users of the following services may find it especially useful: * FlyMine (http://www.flymine.org/query) * YeastMine (http://yeastmine.yeastgenome.org/yeastmine) * RatMine (http://ratmine.mcw.edu/ratmine) * modMine (http://intermine.modencode.org/release-23) * metabolicMine (http://www.metabolicmine.org/beta) == How to use this library: We have tried to construct an interface to this library that does not require you to learn an entirely new set of concepts. As such, as well as the underlying methods that are common to all libraries, there is an additional set of aliases and sugar methods that emulate the DSL style of SQL: === SQL style service = Service.new("www.flymine.org/query") service.model. table("Gene"). select("*", "pathways.*"). where(:symbol => "zen"). order_by(:symbol). outerjoin(:pathways). each_row do |r| puts r end === Common InterMine interface service = Service.new("www.flymine.org/query") query = service.new_query("Gene") query.add_views("*", "pathways.*") query.add_constraint("symbol", "=", "zen") query.add_sort_order(:symbol) query.add_join(:pathways) query.each_row do |r| puts r end For more details, see the accompanying documentation and the unit tests for interface examples. Further documentation is available at www.intermine.org. == Support Support is available on our development mailing list: dev@intermine.org == License This code is Open Source under the LGPL. Source code for this gem can be checked out from https://github.com/intermine/intermine-ws-ruby

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