[CORDA-1552]: Log commands executed by the Shell.

tools/shell/src/main/java/net/corda/tools/shell/FlowShellCommand.java

@@ -10,9 +10,12 @@ import org.crsh.cli.*;
 import org.crsh.command.*;
 import org.crsh.text.*;
 import org.crsh.text.ui.TableElement;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.*;
 
+import static java.util.stream.Collectors.joining;
 import static net.corda.tools.shell.InteractiveShell.runFlowByNameFragment;
 import static net.corda.tools.shell.InteractiveShell.runStateMachinesView;
 
@@ -24,12 +27,16 @@ import static net.corda.tools.shell.InteractiveShell.runStateMachinesView;
                 "flow constructors (the right one is picked automatically) are then specified using the same syntax as for the run command."
 )
 public class FlowShellCommand extends InteractiveShellCommand {
+
+    private static Logger logger = LoggerFactory.getLogger(FlowShellCommand.class);
+
     @Command
     @Usage("Start a (work)flow on the node. This is how you can change the ledger.")
     public void start(
             @Usage("The class name of the flow to run, or an unambiguous substring") @Argument String name,
             @Usage("The data to pass as input") @Argument(unquote = false) List<String> input
     ) {
+        logger.info("Executing command \"flow start {} {}\",", name, input.stream().collect(joining(" ")));
         startFlow(name, input, out, ops(), ansiProgressRenderer(), objectMapper());
     }
 
@@ -37,6 +44,7 @@ public class FlowShellCommand extends InteractiveShellCommand {
     @Command
     @Usage("watch information about state machines running on the node with result information")
     public void watch(InvocationContext<TableElement> context) throws Exception {
+        logger.info("Executing command \"flow watch\".");
         runStateMachinesView(out, ops());
     }
 
@@ -57,6 +65,7 @@ public class FlowShellCommand extends InteractiveShellCommand {
     @Command
     @Usage("list flows that user can start")
     public void list(InvocationContext<String> context) throws Exception {
+        logger.info("Executing command \"flow list\".");
         for (String name : ops().registeredFlows()) {
             context.provide(name + System.lineSeparator());
         }

tools/shell/src/main/java/net/corda/tools/shell/RunShellCommand.java

@@ -10,6 +10,8 @@ import org.crsh.cli.Man;
 import org.crsh.cli.Usage;
 import org.crsh.command.InvocationContext;
 import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -17,11 +19,15 @@ import java.util.Map;
 import java.util.Set;
 
 import static java.util.Comparator.comparing;
+import static java.util.stream.Collectors.joining;
 
 // Note that this class cannot be converted to Kotlin because CRaSH does not understand InvocationContext<Map<?, ?>> which
 // is the closest you can get in Kotlin to raw types.
 
 public class RunShellCommand extends InteractiveShellCommand {
+
+    private static Logger logger = LoggerFactory.getLogger(RunShellCommand.class);
+
     @Command
     @Man(
             "Runs a method from the CordaRPCOps interface, which is the same interface exposed to RPC clients.\n\n" +
@@ -30,10 +36,8 @@ public class RunShellCommand extends InteractiveShellCommand {
                     "consulting the developer guide at https://docs.corda.net/api/kotlin/corda/net.corda.core.messaging/-corda-r-p-c-ops/index.html"
     )
     @Usage("runs a method from the CordaRPCOps interface on the node.")
-    public Object main(
+    public Object main(InvocationContext<Map> context, @Usage("The command to run") @Argument(unquote = false) List<String> command) {
-            InvocationContext<Map> context,
+        logger.info("Executing command \"run {}\",", command.stream().collect(joining(" ")));
-            @Usage("The command to run") @Argument(unquote = false) List<String> command
-    ) {
         StringToMethodCallParser<CordaRPCOps> parser = new StringToMethodCallParser<>(CordaRPCOps.class, objectMapper());
 
         if (command == null) {

tools/shell/src/main/java/net/corda/tools/shell/StartShellCommand.java

@@ -5,14 +5,23 @@ package net.corda.tools.shell;
 import net.corda.tools.shell.utlities.ANSIProgressRenderer;
 import net.corda.tools.shell.utlities.CRaSHANSIProgressRenderer;
 import org.crsh.cli.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.*;
 
+import static java.util.stream.Collectors.joining;
+
 public class StartShellCommand extends InteractiveShellCommand {
+
+    private static Logger logger = LoggerFactory.getLogger(StartShellCommand.class);
+
     @Command
     @Man("An alias for 'flow start'. Example: \"start Yo target: Some other company\"")
     public void main(@Usage("The class name of the flow to run, or an unambiguous substring") @Argument String name,
                      @Usage("The data to pass as input") @Argument(unquote = false) List<String> input) {
+
+        logger.info("Executing command \"start {} {}\",", name, input.stream().collect(joining(" ")));
         ANSIProgressRenderer ansiProgressRenderer = ansiProgressRenderer();
         FlowShellCommand.startFlow(name, input, out, ops(), ansiProgressRenderer != null ? ansiProgressRenderer : new CRaSHANSIProgressRenderer(out), objectMapper());
     }