Initial commit

Implemented the stream access classes

.gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+*.sw?

.travis.yml

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+language: ruby
+rvm:
+  - 2.1.6
+before_install: gem install bundler -v 1.11.2

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in syskit-pocolog.gemspec
+gemspec

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2016 Sylvain Joyeux
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# Syskit::Pocolog
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/syskit/pocolog`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'syskit-pocolog'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install syskit-pocolog
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/syskit-pocolog.
+
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
+

Rakefile

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+require "bundler/gem_tasks"
+require "rake/testtask"
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << "test"
+  t.libs << "lib"
+  t.test_files = FileList['test/**/*_test.rb']
+end
+
+task :default => :spec

lib/syskit-pocolog.rb

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+require 'syskit/pocolog'

lib/syskit/pocolog.rb

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+require 'pocolog'
+require 'syskit'
+
+require 'metaruby/dsls/find_through_method_missing'
+require "syskit/pocolog/version"
+require "syskit/pocolog/streams"
+require "syskit/pocolog/task_streams"
+require "syskit/pocolog/rock_stream_matcher"
+

lib/syskit/pocolog/data_replay_task.rb

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+module Syskit
+    module Pocolog
+        # A single task in the replay environment
+        class DataReplayTask < Syskit::RubyTaskContext
+            # Setup a task to replay the given streams
+            #
+            # @overload for(streams)
+            #   Replay all tasks 
+            # @param [
+            def self.for(stream_mappings)
+            end
+        end
+    end
+end
+

lib/syskit/pocolog/rock_stream_matcher.rb

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+module Syskit
+    module Pocolog
+        # A stream matcher for Rock's standard metadata
+        #
+        # It can be used as parameter to {Streams#query}
+        #
+        # The final query is a logical AND of all the characteristics
+        class RockStreamMatcher
+            attr_reader :query
+
+            def initialize
+                @query = Hash.new
+            end
+
+            def add_regex(key, rx)
+                if existing = query[key]
+                    query[key] = Regexp.union(existing, rx)
+                else
+                    query[key] =  rx
+                end
+                self
+            end
+
+            # Match only ports
+            def ports
+                add_regex('rock_stream_type', /^port$/)
+            end
+
+            # Match only properties
+            def properties
+                add_regex('rock_stream_type', /^property$/)
+            end
+
+            # Match the object (port/property) name
+            def object_name(name)
+                add_regex('rock_task_object_name', name)
+            end
+
+            # Match the task name
+            def task_name(name)
+                add_regex('rock_task_name', name)
+            end
+
+            # Match the task model
+            def task_model(model)
+                add_regex('rock_task_model', model.orogen_model.name)
+            end
+
+            # Tests whether a stream matches this query
+            def ===(stream)
+                query.all? do |key, matcher|
+                    if metadata = stream.metadata[key]
+                        matcher === metadata
+                    end
+                end
+            end
+        end
+    end
+end
+

lib/syskit/pocolog/streams.rb

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+module Syskit
+    module Pocolog
+        # A set of log streams
+        class Streams
+            # Load the set of streams available from a directory
+            #
+            # Note that in each directory, a stream's identity (task name,
+            # port/property name and type) must be unique. If you need to mix
+            # log streams, load files in separate {Streams} objects
+            def self.from_dir(path)
+                streams = new
+                streams.add_dir(Pathname(path))
+                streams
+            end
+
+            # Load the set of streams available from a file
+            def self.from_file(file)
+                streams = new
+                streams.add_file(Pathname(file))
+                streams
+            end
+
+            # The list of streams that are available
+            attr_reader :streams
+
+            def initialize(streams = Array.new)
+                @streams = streams
+            end
+
+            def each_stream(&block)
+                streams.each(&block)
+            end
+
+            # Load all log files from a directory
+            def add_dir(path)
+                path.children.each do |file_or_dir|
+                    if file_or_dir.file? && file_or_dir.to_s =~ /\.\d+\.log$/
+                        add_file(file_or_dir)
+                    end
+                end
+            end
+
+            # Load the streams from a log file
+            def add_file(file)
+                ::Pocolog::Logfiles.open(file).streams.each do |s|
+                    add_stream(s)
+                end
+            end
+
+            # Add a new stream
+            #
+            # @param [Pocolog::DataStream] s
+            def add_stream(s)
+                streams << s
+            end
+
+            # Find all streams whose metadata match the given query
+            def find_all_streams(query)
+                streams.find_all { |s| query === s }
+            end
+
+            # Find all streams that belong to a task
+            def find_task_by_name(name)
+                streams = find_all_streams(RockStreamMatcher.new.task_name(name))
+                if !streams.empty?
+                    TaskStreams.new(streams)
+                end
+            end
+
+            # Give access to the streams per-task by calling <task_name>_task
+            def method_missing(m, *args, &block)
+                MetaRuby::DSLs.find_through_method_missing(
+                    self, m, args, 'task' => "find_task_by_name") || super
+            end
+        end
+    end
+end
+

lib/syskit/pocolog/task_streams.rb

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+module Syskit
+    module Pocolog
+        # Stream accessor for streams that have already be narrowed down to a
+        # single task
+        #
+        # It is returned from the main stream pool by
+        # {Streams#find_task_by_name)
+        class TaskStreams < Streams
+            # Find a port stream that matches the given name
+            def find_port_by_name(name)
+                objects = find_all_streams(RockStreamMatcher.new.ports.object_name(name))
+                if objects.size > 1
+                    raise Ambiguous, "there are multiple ports with the name #{name}"
+                else objects.first
+                end
+            end
+
+            # Find a property stream that matches the given name
+            def find_property_by_name(name)
+                objects = find_all_streams(RockStreamMatcher.new.properties.object_name(name))
+                if objects.size > 1
+                    raise Ambiguous, "there are multiple properties with the name #{name}"
+                else objects.first
+                end
+            end
+
+            # Syskit-looking accessors for ports (_port) and properties
+            # (_property)
+            def method_missing(m, *args)
+                MetaRuby::DSLs.find_through_method_missing(
+                    self, m, args,
+                    "port" => "find_port_by_name",
+                    "property" => "find_property_by_name") || super
+            end
+        end
+    end
+end
+

lib/syskit/pocolog/version.rb

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+module Syskit
+    module Pocolog
+        VERSION = "0.1.0"
+    end
+end

syskit-pocolog.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'syskit/pocolog/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "syskit-pocolog"
+  spec.version       = Syskit::Pocolog::VERSION
+  spec.authors       = ["Sylvain Joyeux"]
+  spec.email         = ["[email protected]"]
+
+  spec.summary       = "A Syskit plugin that allows to replay log files generated by pocolog"
+  spec.description   = "Adds the APIs necessary to transform component networks to replay log files"
+  spec.homepage      = "https://github.com/rock-core/syskit-pocolog"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_dependency 'syskit'
+  spec.add_dependency 'metaruby'
+  spec.add_development_dependency "bundler", "~> 1.11"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "minitest", "~> 5.0"
+end