Added a command-line to set device mastership role.
diff --git a/cli/src/main/java/org/onlab/onos/cli/net/RoleCompleter.java b/cli/src/main/java/org/onlab/onos/cli/net/RoleCompleter.java
new file mode 100644
index 0000000..b540fca
--- /dev/null
+++ b/cli/src/main/java/org/onlab/onos/cli/net/RoleCompleter.java
@@ -0,0 +1,27 @@
+package org.onlab.onos.cli.net;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onlab.onos.net.MastershipRole;
+
+import java.util.List;
+import java.util.SortedSet;
+
+/**
+ * Device mastership role completer.
+ */
+public class RoleCompleter implements Completer {
+ @Override
+ public int complete(String buffer, int cursor, List<String> candidates) {
+ // Delegate string completer
+ StringsCompleter delegate = new StringsCompleter();
+ SortedSet<String> strings = delegate.getStrings();
+ strings.add(MastershipRole.MASTER.toString().toLowerCase());
+ strings.add(MastershipRole.STANDBY.toString().toLowerCase());
+ strings.add(MastershipRole.NONE.toString().toLowerCase());
+
+ // Now let the completer do the work for figuring out what to offer.
+ return delegate.complete(buffer, cursor, candidates);
+ }
+
+}