Add command use

use command helps to choose the product
version to use while there are more than
one product commands present in cli

CLI-37
Change-Id: I4020bbbcc7574cfcc73ddcd4d46c627087990d20
Signed-off-by: Kanagaraj Manickam k00365106 <kanagaraj.manickam@huawei.com>

2 files changed, 25 insertions, 1 deletions

diff --git a/main/src/main/java/org/onap/cli/main/OnapCli.java b/main/src/main/java/org/onap/cli/main/OnapCli.java
index 2695c3f7..528c3e18 100644
--- a/main/src/main/java/org/onap/cli/main/OnapCli.java
+++ b/main/src/main/java/org/onap/cli/main/OnapCli.java
@@ -119,8 +119,10 @@ public class OnapCli {
      */
     public void handleInteractive() { // NOSONAR
         if (isInteractive()) {
+
             ConsoleReader console = null;
             try {
+                OnapCommandRegistrar.getRegistrar().setInteractiveMode(true);
                 console = createConsoleReader();
                 String line = null;
                 while ((line = console.readLine()) != null) {
@@ -132,10 +134,30 @@ public class OnapCli {
                         continue;
                     }
                     this.args = Arrays.asList(line.split(OnapCliConstants.PARAM_INTERACTIVE_ARG_SPLIT_PATTERN));
+
+                    if (!args.isEmpty() && this.args.get(0).equals(OnapCliConstants.PARAM_INTERACTIVE_USE)) {
+                        if (args.size() == 1) {
+                            this.print("Please input the product version to use, supported versions: " +
+                        OnapCommandRegistrar.getRegistrar().getAvailableProductVersions());
+                        } else {
+                            try {
+                                OnapCommandRegistrar.getRegistrar().setEnabledProductVersion(args.get(1));
+                                console.close();
+                                console = createConsoleReader();
+                            } catch (OnapCommandException e) {
+                                this.print(e);
+                            }
+                        }
+
+                        continue;
+                    }
                     handleCommand();
                 }
             } catch (IOException e) { // NOSONAR
                 this.print("Failed to read console, " + e.getMessage());
+            } catch (OnapCommandException e) {
+                this.print(e);
+                this.exitFailure();
             } finally {
                 try {
                     TerminalFactory.get().restore();
@@ -175,7 +197,8 @@ public class OnapCli {
         try {
             StringCompleter strCompleter = new StringCompleter(OnapCommandRegistrar.getRegistrar().listCommandsForEnabledProductVersion());
             strCompleter.add(OnapCliConstants.PARAM_INTERACTIVE_EXIT,
-                    OnapCliConstants.PARAM_INTERACTIVE_CLEAR);
+                    OnapCliConstants.PARAM_INTERACTIVE_CLEAR,
+                    OnapCliConstants.PARAM_INTERACTIVE_USE);
             console.addCompleter(strCompleter);
             console.setPrompt(OnapCliConstants.PARAM_INTERACTIVE_PROMPT);
         } catch (OnapCommandException e) { // NOSONAR
diff --git a/main/src/main/java/org/onap/cli/main/conf/OnapCliConstants.java b/main/src/main/java/org/onap/cli/main/conf/OnapCliConstants.java
index 7fb51cbe..4db26f74 100644
--- a/main/src/main/java/org/onap/cli/main/conf/OnapCliConstants.java
+++ b/main/src/main/java/org/onap/cli/main/conf/OnapCliConstants.java
@@ -33,6 +33,7 @@ public final class OnapCliConstants {
     public static final String PARAM_INTERACTIVE_EXIT = "exit";
     public static final String PARAM_INTERACTIVE_BYE = "bye";
     public static final String PARAM_INTERACTIVE_CLEAR = "clear";
+    public static final String PARAM_INTERACTIVE_USE = "use";
     public static final String PARAM_INTERACTIVE_ARG_SPLIT_PATTERN = "\\s+";
 
     private OnapCliConstants(){}