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|
if Concurrent.on_jruby?
require 'concurrent/errors'
require 'concurrent/utility/engine'
require 'concurrent/executor/abstract_executor_service'
module Concurrent
# @!macro abstract_executor_service_public_api
# @!visibility private
class JavaExecutorService < AbstractExecutorService
java_import 'java.lang.Runnable'
FALLBACK_POLICY_CLASSES = {
abort: java.util.concurrent.ThreadPoolExecutor::AbortPolicy,
discard: java.util.concurrent.ThreadPoolExecutor::DiscardPolicy,
caller_runs: java.util.concurrent.ThreadPoolExecutor::CallerRunsPolicy
}.freeze
private_constant :FALLBACK_POLICY_CLASSES
def initialize(*args, &block)
super
ns_make_executor_runnable
end
def post(*args, &task)
raise ArgumentError.new('no block given') unless block_given?
return handle_fallback(*args, &task) unless running?
@executor.submit_runnable Job.new(args, task)
true
rescue Java::JavaUtilConcurrent::RejectedExecutionException
raise RejectedExecutionError
end
def wait_for_termination(timeout = nil)
if timeout.nil?
ok = @executor.awaitTermination(60, java.util.concurrent.TimeUnit::SECONDS) until ok
true
else
@executor.awaitTermination(1000 * timeout, java.util.concurrent.TimeUnit::MILLISECONDS)
end
end
def shutdown
synchronize do
self.ns_auto_terminate = false
@executor.shutdown
nil
end
end
def kill
synchronize do
self.ns_auto_terminate = false
@executor.shutdownNow
nil
end
end
private
def ns_running?
!(ns_shuttingdown? || ns_shutdown?)
end
def ns_shuttingdown?
if @executor.respond_to? :isTerminating
@executor.isTerminating
else
false
end
end
def ns_shutdown?
@executor.isShutdown || @executor.isTerminated
end
def ns_make_executor_runnable
if !defined?(@executor.submit_runnable)
@executor.class.class_eval do
java_alias :submit_runnable, :submit, [java.lang.Runnable.java_class]
end
end
end
class Job
include Runnable
def initialize(args, block)
@args = args
@block = block
end
def run
@block.call(*@args)
end
end
private_constant :Job
end
end
end
|
