Add a REPL for Smack (smack-repl)

smack-repl/build.gradle

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+ext {
+    scalaVersion = '2.11.7'
+}
+
+dependencies {
+    compile project(':smack-tcp')
+	compile project(':smack-bosh')
+	compile project(':smack-java7')
+	compile project(':smack-resolver-minidns')
+    compile project(':smack-extensions')
+	compile project(':smack-experimental')
+	compile project(':smack-legacy')
+    compile "org.scala-lang:scala-compiler:${scalaVersion}"
+}
+
+task printClasspath(dependsOn: assemble) << {
+    println sourceSets.main.runtimeClasspath.asPath
+}

smack-repl/scala.repl

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+org.igniterealtime.smack.repl.SmackRepl.init()
+
+import org.jivesoftware.smack._
+import org.jivesoftware.smack.util.TLSUtils
+import org.jivesoftware.smack.tcp._
+import org.jxmpp.jid.impl.JidCreate

smack-repl/src/main/java/org/igniterealtime/smack/repl/SmackRepl.java

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+/**
+ *
+ * Copyright 2016 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.repl;
+
+import org.jivesoftware.smack.SmackConfiguration;
+import org.jivesoftware.smack.util.dns.javax.JavaxResolver;
+
+public class SmackRepl {
+
+    public static void init() {
+        SmackConfiguration.getVersion();
+        // smack-repl also pulls in smack-resolver-minidns which has higher precedence the smack-resolver-javax but
+        // won't work on Java SE platforms. Therefore explicitly setup JavaxResolver.
+        JavaxResolver.setup();
+        // CHECKSTYLE:OFF
+        System.out.println("Smack REPL");
+        // CHECKSTYLE:ON
+    }
+
+}

smack-repl/src/main/java/org/igniterealtime/smack/repl/package-info.java

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+/**
+ *
+ * Copyright 2016 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.
+ */
+
+/**
+ * A REPL (Read Eval Print Loop) for Smack.
+ */
+package org.igniterealtime.smack.repl;