Add scala code to smack-repl

smack-repl/.gitignore

@@ -0,0 +1 @@
+/.cache-*

smack-repl/build.gradle

@@ -1,3 +1,10 @@
+plugins {
+	id "com.github.alisiikh.scalastyle_2.12" version "2.0.2"
+}
+
+apply plugin: 'scala'
+apply plugin: 'com.github.alisiikh.scalastyle_2.12'
+
 ext {
     scalaVersion = '2.12.1'
 }
@@ -11,11 +18,20 @@ dependencies {
 	compile project(':smack-experimental')
 	compile project(':smack-legacy')
 	compile project(':smack-integration-test')
+    compile "org.scala-lang:scala-library:$scalaVersion"
     compile "com.lihaoyi:ammonite_$scalaVersion:1.3.2"
     testCompile project(path: ":smack-core", configuration: "testRuntime")
     testCompile project(path: ":smack-core", configuration: "archives")
 }
 
+scalaStyle {
+	config = new File(rootConfigDir, 'scalaStyle.xml')
+	verbose = true
+	failOnViolation = true
+}
+
+check.dependsOn(scalaStyleCheck)
+
 task printClasspath(dependsOn: assemble) {
     doLast {
         println sourceSets.main.runtimeClasspath.asPath

smack-repl/src/main/scala/org/igniterealtime/smack/scala/util/CheckInBandRegistration.scala

@@ -0,0 +1,49 @@
+/**
+ *
+ * Copyright 2018 Florian Schmaus
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.igniterealtime.smack.scala.util
+
+import org.jxmpp.jid.DomainBareJid;
+import org.jxmpp.jid.impl.JidCreate;
+
+import org.jivesoftware.smack.tcp.XMPPTCPConnection;
+import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration;
+
+import org.jivesoftware.smackx.iqregister.AccountManager
+
+object CheckInBandRegistration {
+
+  def supportsIbr(xmppServiceString: String) : Boolean = {
+    val xmppServiceAddress = JidCreate domainBareFrom(xmppServiceString)
+
+    val config = XMPPTCPConnectionConfiguration.builder()
+                  .setXmppDomain(xmppServiceAddress)
+                  .build();
+
+    supportsIbr(config)
+  }
+
+  def supportsIbr(connectionConfiguration: XMPPTCPConnectionConfiguration) : Boolean = {
+    val connection = new XMPPTCPConnection(connectionConfiguration)
+    connection.connect
+    try {
+      AccountManager.getInstance(connection).supportsAccountCreation
+    } finally {
+      connection disconnect
+    }
+  }
+
+}