Sha256: acee509a925c64a7799a8db56849a38617a3da91ee067879d2ce8dcdf7642955

Contents?: true

Size: 1.67 KB

Versions: 11

Compression:

Stored size: 1.67 KB

Contents

# encoding: utf-8
require 'cabin'

module LogStash::Util::JavaVersion
  def self.logger
    @logger ||= Cabin::Channel.get(LogStash)
  end
  
  # Return the current java version string. Returns nil if this is a non-java platform (e.g. MRI).
  def self.version
    return nil unless LogStash::Environment.jruby?
    java.lang.System.getProperty("java.runtime.version")
  end

  # Takes a string of a java version ex: "1.8.0_24-beta"
  # and returns a parsed map of the components.
  # nil inputs will be returned as nil.
  def self.parse_java_version(version_string)
    return nil if version_string.nil?

    # Crazy java versioning rules @ http://www.oracle.com/technetwork/java/javase/versioning-naming-139433.html
    # The regex below parses this all correctly http://rubular.com/r/sInQc3Nc7f

    match = version_string.match(/\A(\d+)\.(\d+)\.(\d+)(_(\d+))?(-(.+))?\Z/)

    return nil unless match

    major, minor, patch, ufull, update, bfull, build = match.captures

    {
      :full => version_string,
      :major => major.to_i,
      :minor => minor.to_i,
      :patch => patch.to_i,
      :update => update.to_i, # this is always coerced to an int (a nil will be zero) to make comparisons easier
      :build => build # not an integer, could be b06 for instance!,
    }
  end

  # Determine if the given java version string is a bad version of java
  # If it is, return true, if it isn't return false.
  # Accepts nil, returning nil.
  def self.bad_java_version?(version_string)
    return nil if version_string.nil?

    parsed = parse_java_version(version_string)
    return false unless parsed

    if parsed[:major] == 1 && parsed[:minor] < 8
      true
    else
      false
    end
  end
end

Version data entries

11 entries across 11 versions & 1 rubygems

Version Path
logstash-core-5.0.0.alpha6.snapshot1-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha5.snapshot1-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha4.snapshot3-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha4.snapshot2-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha4.snapshot1-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3.snapshot8-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3.snapshot7-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3.snapshot6-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3.snapshot5-java lib/logstash/util/java_version.rb
logstash-core-5.0.0.alpha3.snapshot4-java lib/logstash/util/java_version.rb