Titan Configuration

module.exports = (service) ->
  {options} = service

Kerberos

  # Kerberos Test Principal
  options.test_krb5_user ?= service.deps.test_user.options.krb5.user

Environment

  # Layout
  options.install_dir ?= '/opt/titan'
  options.home ?= path.join options.install_dir, 'current'
  # Package
  options.version ?= '1.0.0'
  # Note, Titan 1.0.0 can be found [here](http://s3.thinkaurelius.com/downloads/titan/titan-#{options.version}-hadoop2.zip)
  options.source ?= "http://s3.thinkaurelius.com/downloads/titan/titan-#{options.version}-hadoop2.zip"
  # Misc
  options.force_check ?= false

Configuration

  options.config ?= {}

Storage Backend

  options.config['storage.backend'] ?= 'hbase'
  if options.config['storage.backend'] is 'hbase'
    zk_hosts = @contexts('ryba/zookeeper/server').map( (ctx)-> ctx.config.host)
    options.config['storage.hostname'] ?= zk_hosts.join ','
    options.config['storage.hbase.table'] ?= 'titan'
    options.config['storage.hbase.short-cf-names'] ?= true

Indexation backend (mandatory even if it should not be)

  options.config['index.search.backend'] ?= 'elasticsearch'
  if options.config['index.search.backend'] is 'elasticsearch'
    es_ctxs = @contexts 'ryba/elasticsearch', require('../elasticsearch/configure').handler
    if es_ctxs.length > 0
      options.config['index.search.hostname'] ?= es_ctxs[0].config.host
      options.config['index.search.elasticsearch.client-only'] ?= true
      options.config['index.search.elasticsearch.cluster-name'] ?= es_ctxs[0].config.ryba.elasticsearch.cluster.name
    unless options.config['index.search.hostname']? and options.config['index.search.elasticsearch.cluster-name']?
      throw Error "Cannot autoconfigure elasticsearch. Provide manual config or install elasticsearch"
  else if options.config['index.search.backend'] is 'solr'
    zk_ctxs = @contexts 'ryba/zookeeper/server'
    solr_ctxs = @contexts 'ryba/solr'
    if solr_ctxs.length > 0
      options.config['index.seach.solr.mode'] ?= solr_ctxs[0].config.ryba.solr.mode
      options.config['index.search.solr.zookeeper-url'] ?= "#{zk_ctxs[0].config.host}:#{zk_ctxs[0].config.ryba.zookeeper.port}"
    unless options.config['index.seach.solr.mode']? and options.config['index.search.solr.zookeeper-url']?
      throw Error "Cannot autoconfigure solr. Provide manual config or install solr"
  else throw Error "Invalid search.backend '#{options.config['index.search.backend']}', 'solr' or 'elasticsearch' expected"

Cache configuration

  options.config['cache.db-cache'] ?= true
  options.config['cache.db-cache-clean-wait'] ?= 20
  options.config['cache.db-cache-time'] ?= 180000
  options.config['cache.db-cache-size'] ?= 0.5

Dependencies

path = require 'path'