Extract common name from legal name to determine path

Rewrote node name to extract common name to use as the node path for samples, to work around characters
being incorrectly treated as separators.

build.gradle

@@ -24,7 +24,7 @@ buildscript {
     ext.assertj_version = '3.6.1'
     ext.slf4j_version = '1.7.25'
     ext.log4j_version = '2.7'
-    ext.bouncycastle_version = '1.56'
+    ext.bouncycastle_version = constants.getProperty("bouncycastleVersion")
     ext.guava_version = constants.getProperty("guavaVersion")
     ext.quickcheck_version = '0.7'
     ext.okhttp_version = '3.5.0'

constants.properties

@@ -1,4 +1,5 @@
-gradlePluginsVersion=0.11.1
+gradlePluginsVersion=0.11.2
 kotlinVersion=1.1.1
 guavaVersion=21.0
+bouncycastleVersion=1.56
 typesafeConfigVersion=1.3.1

gradle-plugins/cordformation/build.gradle

@@ -4,6 +4,7 @@ buildscript {
     file("$projectDir/../../constants.properties").withInputStream { constants.load(it) }
 
     ext.kotlin_version = constants.getProperty("kotlinVersion")
+    ext.bouncycastle_version = constants.getProperty("bouncycastleVersion")
     ext.typesafe_config_version = constants.getProperty("typesafeConfigVersion")
 
     repositories {
@@ -47,6 +48,9 @@ dependencies {
 
     // TypeSafe Config: for simple and human friendly config files.
     compile "com.typesafe:config:$typesafe_config_version"
+
+    // Bouncy Castle: for X.500 distinguished name manipulation
+    compile "org.bouncycastle:bcprov-jdk15on:${bouncycastle_version}"
 }
 
 task createNodeRunner(type: Jar, dependsOn: [classes]) {

gradle-plugins/cordformation/src/main/groovy/net/corda/plugins/Node.groovy

@@ -1,6 +1,8 @@
 package net.corda.plugins
 
 import com.typesafe.config.*
+import org.bouncycastle.asn1.x500.X500Name
+import org.bouncycastle.asn1.x500.style.BCStyle
 import org.gradle.api.Project
 import java.nio.charset.StandardCharsets
 import java.nio.file.Files
@@ -154,7 +156,15 @@ class Node {
     }
 
     void build(File rootDir) {
-        nodeDir = new File(rootDir, name.replaceAll("\\s",""))
+        def dirName
+        try {
+            X500Name x500Name = new X500Name(name)
+            dirName = x500Name.getRDNs(BCStyle.CN).getAt(0).getFirst().getValue().toString()
+        } catch(IllegalArgumentException ex) {
+            // Can't parse as an X500 name, use the full string
+            dirName = name
+        }
+        nodeDir = new File(rootDir, dirName.replaceAll("\\s",""))
         configureRpcUsers()
         installCordaJar()
         installWebserverJar()