refactor RuleActionHideProgramStage to kotlin

src/main/java/org/hisp/dhis/rules/models/RuleAction.kt

@@ -0,0 +1,7 @@
+package org.hisp.dhis.rules.models
+
+import javax.annotation.Nonnull
+
+fun interface RuleAction {
+    fun data(): String
+}

src/main/java/org/hisp/dhis/rules/models/RuleActionHideProgramStage.kt

@@ -0,0 +1,10 @@
+package org.hisp.dhis.rules.models
+
+data class RuleActionHideProgramStage(
+    val programStage: String,
+    val data: String = ""
+) : RuleAction {
+    override fun data(): String {
+        return data
+    }
+}

src/test/java/org/hisp/dhis/rules/RuleEngineEffectTypesTest.kt

@@ -150,7 +150,7 @@ class RuleEngineEffectTypesTest {
 
     @Test
     fun simpleConditionMustResultInHideProgramStageEffect() {
-        val ruleAction: RuleAction = RuleActionHideProgramStage.create("test_program_stage")
+        val ruleAction: RuleAction = RuleActionHideProgramStage("test_program_stage")
         val rule = Rule.create(null, null, "true", List.of(ruleAction), "", "")
         val ruleEngine = getRuleEngine(rule)
         val ruleEffects = ruleEngine.evaluate(getTestRuleEvent(RuleEvent.Status.ACTIVE)).call()