lib/jdk/jdk5_helper.rb lib/jdk/jdk6_helper.rb lib/jdk_helper.rb @@ -6,7 +6,7 @@ require "rubygems" dir = File.dirname(__FILE__) lib = File.join(dir, "lib", "jmx4r.rb") -version = "0.1.0" +version = "0.1.0.1" task :default => [:test] Rakefile @@ -12,7 +12,8 @@ module JConsole # By default, no authentication is required to connect to it. # # The args hash accepts 3 keys: - # [:port] the port which will be listens to JMX connections + # [:port] the port which will be listens to JMX connections. + # if the port is 0, jmxrmi port is not published # [:pwd_file] the path to the file containing the authentication credentials # [:access_file] the path to the file containing the authorization credentials # @@ -29,13 +30,19 @@ module JConsole cmd =<<-EOCMD.split("\n").join(" ") jconsole -J-Dcom.sun.management.jmxremote - -J-Dcom.sun.management.jmxremote.port=#{port} - -J-Dcom.sun.management.jmxremote.ssl=false - -J-Dcom.sun.management.jmxremote.authenticate=#{!pwd_file.nil?} -EOCMD - if pwd_file and access_file - cmd << " -J-Dcom.sun.management.jmxremote.password.file=#{pwd_file}" - cmd << " -J-Dcom.sun.management.jmxremote.access.file=#{access_file}" + EOCMD + + if port != 0 + cmd << <<-EOCMD.split("\n").join(" ") + -J-Dcom.sun.management.jmxremote.port=#{port} + -J-Dcom.sun.management.jmxremote.ssl=false + -J-Dcom.sun.management.jmxremote.authenticate=#{!pwd_file.nil?} + EOCMD + + if pwd_file and access_file + cmd << " -J-Dcom.sun.management.jmxremote.password.file=#{pwd_file}" + cmd << " -J-Dcom.sun.management.jmxremote.access.file=#{access_file}" + end end Thread.start { system cmd } sleep 3 @@ -46,7 +53,11 @@ EOCMD # By default, it will kill the process corresponding to an instance JConsole with # a port on 3000. Another port can be specified in parameter. def JConsole.stop(port=3000) - jconsole_pid = `ps a -w -o pid,command | grep -w jconsole | grep port=#{port} | grep -v grep | grep -v ruby | cut -c -5` + ps = "ps a -w -o pid,command | grep -w jconsole" + ps << " | grep port=#{port}" if port != 0 + ps << " | grep -v grep | grep -v ruby | cut -c -5" + + jconsole_pid = `#{ps}` `kill #{jconsole_pid}` if jconsole_pid != "" sleep 1 end lib/jconsole.rb @@ -111,6 +111,7 @@ module JMX # # JMX::MBean.establish_connection :port => "node23", :port => 1090 # JMX::MBean.establish_connection :port => "node23", :username => "jeff", :password => "secret" + # JMX::MBean.establish_connection :command => /jconsole/i def self.establish_connection(args={}) @@connection ||= create_connection args end @@ -143,6 +144,15 @@ module JMX # if the url is specified, the host & port parameters are # not taken into account # + # [:command] the pattern matches the command line of the local + # JVM process. + # (listed as 'local processes' on JConsole). + # No default. + # this feature needs a JDK (>=5) installed on the local + # system. + # if the command is specified, the host & port or the url + # parameters are not taken into account + # # [:username] the name of the user (if the MBean server requires authentication). # No default # @@ -164,9 +174,15 @@ module JMX credentials = args[:credentials] provider_package = args[:provider_package] - # host & port are not taken into account if url is set (see issue #7) - standard_url = "service:jmx:rmi:///jndi/rmi://#{host}:#{port}/jmxrmi" - url = args[:url] || standard_url + if args[:command] + require 'jdk_helper' + url = JDKHelper.find_local_url(args[:command]) or + raise "no locally attacheable VMs" + else + # host & port are not taken into account if url is set (see issue #7) + standard_url = "service:jmx:rmi:///jndi/rmi://#{host}:#{port}/jmxrmi" + url = args[:url] || standard_url + end unless credentials if !username.nil? and username.length > 0 lib/jmx4r.rb @@ -77,4 +77,15 @@ class TestConnection < Test::Unit::TestCase end end + def test_establish_connection_local + begin + JConsole::start :port => 0 + connection = JMX::MBean.establish_connection \ + :command => /jconsole/i + assert(connection.getMBeanCount > 0) + ensure + JConsole::stop 0 + end + end + end test/tc_connection.rb ebfc035c61fa9e231e51b96a5f498ba22a2c11b0 sat13f sat13f@gmail.com http://github.com/jmesnil/jmx4r/commit/478de5bc0bc49dd8bc7145d87056080e8a3ee1df 478de5bc0bc49dd8bc7145d87056080e8a3ee1df 2009-10-22T01:41:07-07:00 2009-08-02T00:27:58-07:00 added local JVM connection feature 26600aecc434f3d1a58d573730fbdc33aa3273a1 Jeff Mesnil jmesnil@gmail.com