Results for apache-connect

A client for connecting to Apache Solr Cell.

ADBC (Apache Arrow Database Connectivity) is an API standard for database access libraries that uses Apache Arrow for data.

This gem permits to sync automatically models and custom data between multiple Rails applications by publishing notifications via pubsub (Google PubSub, RabbitMQ, or Apache Kafka) and automatically processed by all connected applications. Out of the scope, this gem includes transactions to keep Data consistency by processing notifications in the order they were delivered.

Synapse is Airbnb's new system for service discovery. Synapse solves the problem of automated fail-over in the cloud, where failover via network re-configuration is impossible. The end result is the ability to connect internal services together in a scalable, fault-tolerant way. This is a forked version which adds support for Apache Aurora service announcements.

ADBC is Apache Arrow Database Connectivity. It provides a API that can connect to different databases by wrapping database specific APIs. This is not a new approach. There are existing APIs such as Active Record, Sequel and ODBC. The difference between the existing APIs and ADBC is the focus on large data and performance. ADBC is an important part to use Ruby for data processing. We can extract large data from many databases (not only RDBMSs but also data ware houses and so on) and load large data into many databases with ADBC. To use Ruby for data processing, we need data. ADBC helps it.

= DESCRIPTION: Provides a Chef handler which can report run status, including any changes that were made, to a rabbit server. In the case of failed runs a backtrace will be included in the details reported. Based on the Graylog Gelf handler by Jon Wood (<jon@blankpad.net>) https://github.com/jellybob/chef-gelf = REQUIREMENTS: * A Rabbit server running somewhere. = USAGE: This example makes of the chef_handler cookbook, place some thing like this in cookbooks/chef_handler/recipes/rabbit.rb and add it to your run list. include_recipe "chef_handler::default" gem_package "chef-rabbit" do action :nothing end.run_action(:install) # Make sure the newly installed Gem is loaded. Gem.clear_paths require 'chef/rabbit' chef_handler "Chef::RABBIT::Handler" do source "chef/rabbit" arguments({ :connection => { :host => "your_rabbit_server", :user => "rabbit_user", :pass => "rabbit_pass", :vhost => "/stuff" } :queue => { :name => "some_queue", :params => { :durable => true, ... } }, :exchange => { :name => "some_exchange", :params => { :durable => true, ... } }, :timestamp_tag => "@timestamp" }) supports :exception => true, :report => true end.run_action(:enable) Arguments take the form of an options hash, with the following options: * :connection - http://rubybunny.info/articles/connecting.html * :queue - rabbit queue info to use. name is set to "chef-client" + durable = true by default * :exchange - rabbit exchange to use .default_exchange + durable = true by default * :timestamp_tag - tag for timestamp "timestamp" by default * :blacklist ({}) - A hash of cookbooks, resources and actions to ignore in the change list. = BLACKLISTING: Some resources report themselves as having updated on every run even if nothing changed, or are just things you don't care about. To reduce the amount of noise in your logs these can be ignored by providing a blacklist. In this example we don't want to be told about the GELF handler being activated: chef_handler "Chef::RABBIT::Handler" do source "chef/rabbit" arguments({ :blacklist => { "chef_handler" => { "chef_handler" => [ "nothing", "enable" ] } } }) supports :exception => true, :report => true end.run_action(:enable) = LICENSE and AUTHOR: Copyright 2014 by MTN Satellite Communications 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.

==== Ruby Topic Maps (RTM) RTM is a Topic Maps engine written in Ruby. See http://rtm.topicmapslab.de/ for instructions. Several backends and extensions are available as separate gems. ==== Overview From a developer's perspective, RTM is a schema-less database management system. The Topic Maps standard (described below) on which RTM is based provides a way of creating a self-describing schema just by using it. ==== Quickstart require 'rtm' connection = RTM.connect # uses the default Ontopia in-memory backend topic_map = connection.create "http://example.org/my_topic_map/" some_topic = topicmap.get!("identifier_of_the_topic") some_topic["-"] = "default name for the topic" topic_map.to_xtm("my_xtm_file.xtm") ==== Topic Maps Topic Maps is an international industry standard (ISO13250) for interchangeably representing information about the structure of information resources used to define topics, and the relationships between topics. A set of one or more interrelated documents that employs the notation defined by this International Standard is called a topic map. A topic map defines a multidimensional topic space - a space in which the locations are topics, and in which the distances between topics are measurable in terms of the number of intervening topics which must be visited in order to get from one topic to another, and the kinds of relationships that define the path from one topic to another, if any, through the intervening topics, if any. In addition, information objects can have properties, as well as values for those properties, assigned to them. The Topic Maps Data Model which is used in this implementation can be found on http://www.isotopicmaps.org/sam/sam-model/. ==== Backends * rtm-ontopia: JRuby only, recommended, uses Ontopia: http://code.google.com/p/ontopia/ * rtm-tinytim: JRuby only, uses TinyTiM: http://tinytim.sourceforge.net/ * rtm-activerecord: uses a custom ActiveRecord schema ==== Extensions * rtm-tmql: Adds support for the Topic Maps Query Language (TMQL), http://isotopicmaps.org/tmql/ * rtm-tmcl: Adds support for the Topic Maps Constraint Language (TMCL), http://isotopicmaps.org/tmcl/ ==== License Copyright 2009 Topic Maps Lab, University of Leipzig. Apache License, Version 2.0

==== Topic Maps for Rails (rtm-rails) RTM-Rails is the Rails-Adapter for Ruby Topic Maps. It allows simple configuration of topicmaps in config/topicmaps.yml. ==== Overview From a developer's perspective, RTM is a schema-less database management system. The Topic Maps standard (described below) on which RTM is based provides a way of creating a self-describing schema just by using it. You can use RTM as a complement data storage to ActiveRecord in your Rails apps. ==== Quickstart - existing Rails project jruby script/generate topicmaps Run the command above after installing rtm-rails. This will create * a minimal default configuration: config/topicmaps.yml and * a file with more examples and explanations config/topicmaps.example.yml * a file README.topicmaps.txt which contains more information how to use it and where to find more information * an initializer to load the topicmaps at startup * a rake task to migrate the topic maps backends in your rails application. ==== Quickstart - new Rails project For a new Rails application these are the complete initial steps: jruby -S rails my_topicmaps_app cd my_topicmaps_app jruby -S script/generate jdbc jruby -S script/generate topicmaps # The following lines are necessary because Rails does not have a template # for the H2 database and Ontopia does not support the Rails default SQLite3. sed -e "s/sqlite3/h2/" config/database.yml > config/database.yml.h2 mv config/database.yml.h2 config/database.yml # Prepare the database and then check if all is OK jruby -S rake topicmaps:migrate_backends jruby -S rake topicmaps:check ==== Usage inside the application When everything is fine, let's create our first topic: jruby -S script/console TM[:example].get!("http://example.org/my/first/topic") # and save the topic map TM[:example].commit Access the configured topic maps anywhere in your application like this: TM[:example] To retrieve all topics, you can do TM[:example].topics To retrieve a specific topic by its subject identifier: TM[:example].get("http://example.org/my/topic") Commit the changes to the database permanently: TM[:example].commit ... or abort the transaction: TM[:example].abort More information can be found on http://rtm.topicmapslab.de/ ==== Minimal configuration default: topicmaps: example: http://rtm.topicmapslab.de/example1/ The minimal configuration creates a single topic map, named :example with the locator given. This topic map will be persisted in the same database as your ActiveRecord connection if not specified otherwise. The default backend is OntopiaRDBMS (from the rtm-ontopia gem). A more complete configuration can be found in config/topicmaps.example.yml after running "jruby script/generate topicmaps". It also includes how to specifiy multiple connections to different data stores and so on. ==== Topic Maps Topic Maps is an international industry standard (ISO13250) for interchangeably representing information about the structure of information resources used to define topics, and the relationships between topics. A set of one or more interrelated documents that employs the notation defined by this International Standard is called a topic map. A topic map defines a multidimensional topic space - a space in which the locations are topics, and in which the distances between topics are measurable in terms of the number of intervening topics which must be visited in order to get from one topic to another, and the kinds of relationships that define the path from one topic to another, if any, through the intervening topics, if any. In addition, information objects can have properties, as well as values for those properties, assigned to them. The Topic Maps Data Model which is used in this implementation can be found on http://www.isotopicmaps.org/sam/sam-model/. ==== License Copyright 2009 Topic Maps Lab, University of Leipzig. Apache License, Version 2.0

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