Unpack DemoBench's capsules within $HOME/demobench directory. (#738)

* Unpack the capsules into a subdirectory of $HOME/demobench.
* Minor tidy up.
* Add a new suggested bank.

tools/demobench/src/main/kotlin/net/corda/demobench/model/JVMConfig.kt

@@ -3,14 +3,15 @@ package net.corda.demobench.model
 import javafx.scene.control.Alert
 import javafx.scene.control.Alert.AlertType.ERROR
 import javafx.stage.Stage
-import tornadofx.*
 import java.nio.file.Path
 import java.nio.file.Paths
+import tornadofx.*
 
 class JVMConfig : Controller() {
 
     val userHome: Path = Paths.get(System.getProperty("user.home")).toAbsolutePath()
     val dataHome: Path = userHome.resolve("demobench")
+    val capsuleHome: Path = dataHome.resolve(".capsule")
     val javaPath: Path = Paths.get(System.getProperty("java.home"), "bin", "java")
     val applicationDir: Path = Paths.get(System.getProperty("user.dir")).toAbsolutePath()
 
@@ -23,9 +24,12 @@ class JVMConfig : Controller() {
     }
 
     fun processFor(jarPath: Path, vararg args: String): ProcessBuilder {
-        return ProcessBuilder(commandFor(jarPath, *args))
+        return ProcessBuilder(commandFor(jarPath, *args)).apply { setCapsuleCacheDir(environment()) }
     }
 
+    fun setCapsuleCacheDir(env: MutableMap<String, String>): MutableMap<String, String> = env.apply {
+        put("CAPSULE_CACHE_DIR", capsuleHome.toString())
+    }
 }
 
 typealias atRuntime = (Path, String) -> Unit

tools/demobench/src/main/kotlin/net/corda/demobench/model/NodeConfig.kt

@@ -47,10 +47,9 @@ class NodeConfig(
             .withValue("myLegalName", valueFor(legalName.toString()))
             .withValue("p2pAddress", addressValueFor(p2pPort))
             .withValue("extraAdvertisedServiceIds", valueFor(extraServices))
-            .withFallback(optional("networkMapService", networkMap, {
-                c, n ->
+            .withFallback(optional("networkMapService", networkMap, { c, n ->
                 c.withValue("address", addressValueFor(n.p2pPort))
-                        .withValue("legalName", valueFor(n.legalName.toString()))
+                    .withValue("legalName", valueFor(n.legalName.toString()))
             }))
             .withValue("webAddress", addressValueFor(webPort))
             .withValue("rpcAddress", addressValueFor(rpcPort))

tools/demobench/src/main/kotlin/net/corda/demobench/model/NodeController.kt

@@ -116,7 +116,10 @@ class NodeController(check: atRuntime = ::checkExists) : Controller() {
                 confFile.writeText(config.toText())
 
                 // Execute the Corda node
-                pty.run(command, System.getenv(), nodeDir.toString())
+                val cordaEnv = System.getenv().toMutableMap().apply {
+                    jvm.setCapsuleCacheDir(this)
+                }
+                pty.run(command, cordaEnv, nodeDir.toString())
                 log.info("Launched node: ${config.legalName}")
                 return true
             } catch (e: Exception) {

tools/demobench/src/main/kotlin/net/corda/demobench/model/NodeData.kt

@@ -19,7 +19,8 @@ object SuggestedDetails {
             "Bank of Big Apples" to "New York",
             "Bank of Baguettes" to "Paris",
             "Bank of Fondue" to "Geneve",
-            "Bank of Maple Syrup" to "Toronto"
+            "Bank of Maple Syrup" to "Toronto",
+            "Bank of Golden Gates" to "San Francisco"
     )
 
     private var cursor = 0

tools/demobench/src/main/kotlin/net/corda/demobench/model/ServiceController.kt

@@ -4,7 +4,6 @@ import tornadofx.*
 import java.io.IOException
 import java.io.InputStreamReader
 import java.net.URL
-import java.util.*
 import java.util.logging.Level
 
 class ServiceController(resourceName: String = "/services.conf") : Controller() {
@@ -17,11 +16,11 @@ class ServiceController(resourceName: String = "/services.conf") : Controller()
      * Load our list of known extra Corda services.
      */
     private fun loadConf(url: URL?): List<String> {
-        if (url == null) {
-            return emptyList()
+        return if (url == null) {
+            emptyList()
         } else {
             try {
-                val set = TreeSet<String>()
+                val set = sortedSetOf<String>()
                 InputStreamReader(url.openStream()).useLines { sq ->
                     sq.forEach { line ->
                         val service = line.trim()
@@ -30,12 +29,11 @@ class ServiceController(resourceName: String = "/services.conf") : Controller()
                         log.info("Supports: $service")
                     }
                 }
-                return set.toList()
+                set.toList()
             } catch (e: IOException) {
                 log.log(Level.SEVERE, "Failed to load $url: ${e.message}", e)
-                return emptyList()
+                emptyList<String>()
             }
         }
     }
-
 }

tools/demobench/src/main/kotlin/net/corda/demobench/pty/R3Pty.kt

@@ -44,7 +44,7 @@ class R3Pty(val name: X500Name, settings: SettingsProvider, dimension: Dimension
 
     @Throws(IOException::class)
     fun run(args: Array<String>, envs: Map<String, String>, workingDir: String?) {
-        check(!terminal.isSessionRunning, { "${terminal.sessionName} is already running" })
+        check(!terminal.isSessionRunning) { "${terminal.sessionName} is already running" }
 
         val environment = envs.toMutableMap()
         if (!UIUtil.isWindows) {
@@ -64,8 +64,7 @@ class R3Pty(val name: X500Name, settings: SettingsProvider, dimension: Dimension
             onExit(exitValue)
         }
 
-        val session = terminal.createTerminalSession(connector)
-        session.start()
+        terminal.createTerminalSession(connector).apply { start() }
     }
 
     @Suppress("unused")