Merge pull request #5 from ojung/choose-free-port

Choose free port

mbeanz/mbeanz

@@ -5,7 +5,8 @@ import json
 import requests
 import subprocess32
 
-api_url = 'http://localhost:7999'
+port = [line.rstrip('\n') for line in open('/var/tmp/mbeanz.port')][0]
+api_url = 'http://localhost:' + port
 
 class colors:
     OKGREEN = '\033[92m'

mbeanz/requirements.txt

@@ -1,18 +1,2 @@
-enum34==1.0.4
-futures==3.0.3
-greenlet==0.4.7
-httpie==0.9.2
-msgpack-python==0.4.6
-neovim==0.0.37
-pep8==1.5.6
-powerline-status==2.1
-pyflakes==0.8.1
-Pygments==2.0.2
-pyzmq==14.1.1
 requests==2.7.0
-speedtest-cli==0.2.5
 subprocess32==3.2.6
-trollius==2.0
-vboxapi==1.0
-virtualenv==13.1.2
-wheel==0.24.0

project.clj

@@ -7,7 +7,7 @@
                  [org.clojure/core.match "0.3.0-alpha4"]
                  [compojure "1.3.4"]
                  [ring.middleware.logger "0.5.0"]
-                 [http-kit "2.0.0"]
+                 [http-kit "2.1.17"]
                  [ring/ring-mock "0.3.0"]
                  [ring/ring-defaults "0.1.2"]
                  [ring/ring-json "0.4.0"]

src/mbeanz/handler.clj

@@ -9,9 +9,12 @@
             [environ.core :refer [env]]
             [clojure.java.jmx :as jmx])
   (:use [org.httpkit.server :only [run-server]]
-        [clj-stacktrace.core :only [parse-exception]])
+        [clj-stacktrace.core :only [parse-exception]]
+        [clojure.java.io :only [writer]])
   (:import java.lang.management.ManagementFactory))
 
+(defonce server (atom nil))
+
 (def object-pattern (delay (or (env :mbeanz-object-pattern) "*:*")))
 
 (def jmx-remote-host (delay (or (env :mbeanz-jmx-remote-host) "localhost")))
@@ -62,4 +65,6 @@
       (wrap-defaults api-defaults)))
 
 (defn -main [& args]
-  (run-server app {:port 7999}))
+  (reset! server (run-server app {:port 0}))
+  (with-open [my-writer (writer "/var/tmp/mbeanz.port")]
+    (.write my-writer (str (:local-port (meta @server))))))