feat: add private package support (#79)

Motivation:
Private package support has been released on gatling enterprise.

Modifications:
Add control plane URL configuration in plugin configuration.

Result:
control plane url configuration leads the plugin to upload private package on the private repository.

Closes HYB-307

build.gradle

@@ -13,8 +13,17 @@ repositories {
 }
 
 dependencies {
-  implementation "io.gatling:gatling-enterprise-plugin-commons:1.5.5"
+  implementation "io.gatling:gatling-enterprise-plugin-commons:1.6.0"
   implementation "org.apache.ant:ant:1.10.11"
+  constraints {
+    implementation('com.fasterxml.jackson.core:jackson-databind') {
+      version {
+        strictly '2.14.3'
+      }
+      because 'some gradle versions have bug with multi-jdk jar, introduced in jackson-databind 2.15.' +
+        'cf. https://github.com/gradle/gradle/issues/24390'
+    }
+  }
 
   testImplementation('org.spockframework:spock-core:1.3-groovy-2.5') {
     exclude module: 'groovy-all'

src/main/groovy/io/gatling/gradle/GatlingPluginExtension.groovy

@@ -27,6 +27,7 @@ class GatlingPluginExtension {
     private static final String SYSTEM_PROPS_PROPERTY = "gatling.enterprise.systemProps"
     private static final String ENVIRONMENT_VARIABLES_PROPERTY = "gatling.enterprise.environmentVariables"
     private static final String WAIT_FOR_RUN_END_PROPERTY = "gatling.enterprise.waitForRunEnd"
+    private static final String PRIVATE_CONTROL_PLANE_URL = "gatling.enterprise.privateControlPlaneUrl"
     private static final String PLUGIN_NAME = "gatling-gradle-plugin"
 
     final static class Enterprise {
@@ -42,6 +43,7 @@ class GatlingPluginExtension {
         private String simulationClass
         private boolean batchMode
         private boolean waitForRunEnd
+        private URL privateControlPlaneUrl
 
         def setBatchMode(boolean batchMode) {
             this.batchMode = batchMode
@@ -139,6 +141,14 @@ class GatlingPluginExtension {
             setWaitForRunEnd(waitForRunEnd)
         }
 
+        def setPrivateControlPlaneUrl(String privateControlPlaneUrl) {
+            this.privateControlPlaneUrl = new URL(privateControlPlaneUrl)
+        }
+
+        def privateControlPlaneUrl(String privateControlPlaneUrl) {
+            setPrivateControlPlaneUrl(privateControlPlaneUrl)
+        }
+
         @Input
         @Optional
         UUID getSimulationId() {
@@ -226,6 +236,12 @@ class GatlingPluginExtension {
             return waitForRunEnd || Boolean.getBoolean(WAIT_FOR_RUN_END_PROPERTY)
         }
 
+        @Input
+        @Optional
+        URL getprivateControlPlaneUrl() {
+            return privateControlPlaneUrl ?: new URL(System.getProperty(PRIVATE_CONTROL_PLANE_URL))
+        }
+
         EnterpriseClient initEnterpriseClient(String version) {
             def apiToken = getApiToken()
             if (!apiToken) {
@@ -239,7 +255,7 @@ class GatlingPluginExtension {
             }
 
             try {
-                return new HttpEnterpriseClient(getUrl(), getApiToken(), PLUGIN_NAME, version)
+                return new HttpEnterpriseClient(getUrl(), getApiToken(), PLUGIN_NAME, version, getprivateControlPlaneUrl())
             } catch (UnsupportedClientException e) {
                 throw new InvalidUserDataException(
                     "Please update the Gatling Gradle plugin to the latest version for compatibility with Gatling Enterprise. See https://gatling.io/docs/gatling/reference/current/extensions/gradle_plugin/ for more information about this plugin.",