Merge pull request #48 from vanniktech/close

BluetoothConnection: Close everything separately.

rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/BluetoothConnection.java

@@ -242,21 +242,9 @@ public boolean send(String text) {
    * Close the streams and socket connection.
    */
   public void closeConnection() {
-    try {
-      connected = false;
-
-      if (inputStream != null) {
-        inputStream.close();
-      }
-
-      if (outputStream != null) {
-        outputStream.close();
-      }
-
-      if (socket != null) {
-        socket.close();
-      }
-    } catch (IOException ignored) {
-    }
+    connected = false;
+    Utils.close(inputStream);
+    Utils.close(outputStream);
+    Utils.close(socket);
   }
 }

rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/Utils.java

@@ -0,0 +1,20 @@
+package com.github.ivbaranov.rxbluetooth;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+final class Utils {
+  static void close(Closeable closeable) {
+    if (closeable != null) {
+      try {
+        closeable.close();
+      } catch (IOException ignored) {
+        // Ignored.
+      }
+    }
+  }
+
+  private Utils() {
+    throw new AssertionError("No instances.");
+  }
+}