MXS-1300: Add calling of module commands to MaxCtrl

Module commands can now be called with MaxCtrl.

client/maxctrl/lib/call.js

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2016 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2020-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+require('../common.js')()
+
+exports.command = 'call <command>'
+exports.desc = 'Call module commands'
+exports.handler = function() {}
+exports.builder = function(yargs) {
+    yargs
+        .command('command <module> <command> [parameters...]', 'Call a module command', {}, function(argv) {
+
+            // First we have to find the correct method to use
+            doRequest('maxscale/modules/' + argv.module + '/', function(resp) {
+
+                // A GET request will return the correct error if the command is not found
+                var verb = "GET"
+
+                resp.data.attributes.commands.forEach(function(i) {
+                    if (i.id == argv.command) {
+                        verb = i.attributes.method;
+                    }
+                })
+
+                doRequest('maxscale/modules/' + argv.module + '/' + argv.command + '?' + argv.parameters.join('&'),
+                          function(resp) {
+                              console.log(JSON.stringify(resp, null, 4))
+                          }, { method: verb })
+            })
+        })
+        .usage('Usage: call <command>')
+        .help()
+        .command('*', 'the default command', {}, () => {
+            console.log('Unknown command. See output of `help call` for a list of commands.')
+        })
+}

client/maxctrl/maxctrl.js

@@ -64,6 +64,7 @@ program
     .command(require('./lib/stop.js'))
     .command(require('./lib/alter.js'))
     .command(require('./lib/rotate.js'))
+    .command(require('./lib/call.js'))
     .help()
     .demandCommand(1, 'At least one command is required')
     .command('*', 'the default command', {}, () => {