Merge pull request #218 from thingsboard/feature/TB-73

TB-73: Make Rule Action optional

@@ -18,6 +18,7 @@ package org.thingsboard.server.actors.rule;
 import java.util.*;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import org.springframework.util.StringUtils;
 import org.thingsboard.server.actors.ActorSystemContext;
 import org.thingsboard.server.actors.plugin.RuleToPluginMsgWrapper;
 import org.thingsboard.server.actors.shared.ComponentMsgProcessor;
@@ -113,8 +114,9 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
     }
 
     private void initAction() throws Exception {
-        JsonNode actionMd = ruleMd.getAction();
-        action = initComponent(actionMd);
+        if (ruleMd.getAction() != null && !ruleMd.getAction().isNull()) {
+            action = initComponent(ruleMd.getAction());
+        }
     }
 
     private void initProcessor() throws Exception {
@@ -131,9 +133,11 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
     }
 
     private void fetchPluginInfo() {
-        PluginMetaData pluginMd = systemContext.getPluginService().findPluginByApiToken(ruleMd.getPluginToken());
-        pluginTenantId = pluginMd.getTenantId();
-        pluginId = pluginMd.getId();
+        if (!StringUtils.isEmpty(ruleMd.getPluginToken())) {
+            PluginMetaData pluginMd = systemContext.getPluginService().findPluginByApiToken(ruleMd.getPluginToken());
+            pluginTenantId = pluginMd.getTenantId();
+            pluginId = pluginMd.getId();
+        }
     }
 
     protected void onRuleProcessingMsg(ActorContext context, RuleProcessingMsg msg) throws RuleException {
@@ -162,25 +166,27 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
             inMsgMd = new RuleProcessingMetaData();
         }
         logger.debug("[{}] Going to convert in msg: {}", entityId, inMsg);
-        Optional<RuleToPluginMsg<?>> ruleToPluginMsgOptional = action.convert(ruleCtx, inMsg, inMsgMd);
-        if (ruleToPluginMsgOptional.isPresent()) {
-            RuleToPluginMsg<?> ruleToPluginMsg = ruleToPluginMsgOptional.get();
-            logger.debug("[{}] Device msg is converter to: {}", entityId, ruleToPluginMsg);
-            context.parent().tell(new RuleToPluginMsgWrapper(pluginTenantId, pluginId, tenantId, entityId, ruleToPluginMsg), context.self());
-            if (action.isOneWayAction()) {
-                pushToNextRule(context, msg.getCtx(), RuleEngineError.NO_TWO_WAY_ACTIONS);
-            } else {
-                pendingMsgMap.put(ruleToPluginMsg.getUid(), msg);
-                scheduleMsgWithDelay(context, new RuleToPluginTimeoutMsg(ruleToPluginMsg.getUid()), systemContext.getPluginProcessingTimeout());
+        if (action != null) {
+            Optional<RuleToPluginMsg<?>> ruleToPluginMsgOptional = action.convert(ruleCtx, inMsg, inMsgMd);
+            if (ruleToPluginMsgOptional.isPresent()) {
+                RuleToPluginMsg<?> ruleToPluginMsg = ruleToPluginMsgOptional.get();
+                logger.debug("[{}] Device msg is converter to: {}", entityId, ruleToPluginMsg);
+                context.parent().tell(new RuleToPluginMsgWrapper(pluginTenantId, pluginId, tenantId, entityId, ruleToPluginMsg), context.self());
+                if (action.isOneWayAction()) {
+                    pushToNextRule(context, msg.getCtx(), RuleEngineError.NO_TWO_WAY_ACTIONS);
+                    return;
+                } else {
+                    pendingMsgMap.put(ruleToPluginMsg.getUid(), msg);
+                    scheduleMsgWithDelay(context, new RuleToPluginTimeoutMsg(ruleToPluginMsg.getUid()), systemContext.getPluginProcessingTimeout());
+                    return;
+                }
             }
-        } else {
-            logger.debug("[{}] Nothing to send to plugin: {}", entityId, pluginId);
-            pushToNextRule(context, msg.getCtx(), RuleEngineError.NO_REQUEST_FROM_ACTIONS);
-            return;
         }
+        logger.debug("[{}] Nothing to send to plugin: {}", entityId, pluginId);
+        pushToNextRule(context, msg.getCtx(), RuleEngineError.NO_TWO_WAY_ACTIONS);
     }
 
-    public void onPluginMsg(ActorContext context, PluginToRuleMsg<?> msg) {
+    void onPluginMsg(ActorContext context, PluginToRuleMsg<?> msg) {
         RuleProcessingMsg pendingMsg = pendingMsgMap.remove(msg.getUid());
         if (pendingMsg != null) {
             ChainProcessingContext ctx = pendingMsg.getCtx();
@@ -196,7 +202,7 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
         }
     }
 
-    public void onTimeoutMsg(ActorContext context, RuleToPluginTimeoutMsg msg) {
+    void onTimeoutMsg(ActorContext context, RuleToPluginTimeoutMsg msg) {
         RuleProcessingMsg pendingMsg = pendingMsgMap.remove(msg.getMsgId());
         if (pendingMsg != null) {
             logger.debug("[{}] Processing timeout detected [{}]: {}", entityId, msg.getMsgId(), pendingMsg);
@@ -210,13 +216,13 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
             ctx = ctx.withError(error);
         }
         if (ctx.isFailure()) {
-            logger.debug("[{}] Forwarding processing chain to device actor due to failure.", ctx.getInMsg().getDeviceId());
+            logger.debug("[{}][{}] Forwarding processing chain to device actor due to failure.", ruleMd.getId(), ctx.getInMsg().getDeviceId());
             ctx.getDeviceActor().tell(new RulesProcessedMsg(ctx), ActorRef.noSender());
         } else if (!ctx.hasNext()) {
-            logger.debug("[{}] Forwarding processing chain to device actor due to end of chain.", ctx.getInMsg().getDeviceId());
+            logger.debug("[{}][{}] Forwarding processing chain to device actor due to end of chain.", ruleMd.getId(), ctx.getInMsg().getDeviceId());
             ctx.getDeviceActor().tell(new RulesProcessedMsg(ctx), ActorRef.noSender());
         } else {
-            logger.debug("[{}] Forwarding processing chain to next rule actor.", ctx.getInMsg().getDeviceId());
+            logger.debug("[{}][{}] Forwarding processing chain to next rule actor.", ruleMd.getId(), ctx.getInMsg().getDeviceId());
             ChainProcessingContext nextTask = ctx.getNext();
             nextTask.getCurrentActor().tell(new RuleProcessingMsg(nextTask), context.self());
         }
@@ -269,18 +275,16 @@ class RuleActorMessageProcessor extends ComponentMsgProcessor<RuleId> {
     public void onActivate(ActorContext context) throws Exception {
         logger.info("[{}] Going to process onActivate rule.", entityId);
         this.state = ComponentLifecycleState.ACTIVE;
-        if (action != null) {
-            if (filters != null) {
-                filters.forEach(f -> f.resume());
-            } else {
-                initFilters();
-            }
+        if (filters != null) {
+            filters.forEach(RuleLifecycleComponent::resume);
             if (processor != null) {
                 processor.resume();
             } else {
                 initProcessor();
             }
-            action.resume();
+            if (action != null) {
+                action.resume();
+            }
             logger.info("[{}] Rule resumed.", entityId);
         } else {
             start();

@@ -72,16 +72,19 @@ public abstract class RuleManager {
     }
 
     public Optional<ActorRef> update(ActorContext context, RuleId ruleId, ComponentLifecycleEvent event) {
-        RuleMetaData rule = null;
+        RuleMetaData rule;
         if (event != ComponentLifecycleEvent.DELETED) {
             rule = systemContext.getRuleService().findRuleById(ruleId);
-        }
-        if (rule == null) {
+        } else {
             rule = ruleMap.keySet().stream()
                     .filter(r -> r.getId().equals(ruleId))
                     .peek(r -> r.setState(ComponentLifecycleState.SUSPENDED))
                     .findFirst()
                     .orElse(null);
+            if (rule != null) {
+                ruleMap.remove(rule);
+                ruleActors.remove(ruleId);
+            }
         }
         if (rule != null) {
             RuleActorMetaData actorMd = ruleMap.get(rule);

@@ -25,7 +25,7 @@
         </encoder>
     </appender>
 
-    <logger name="org.thingsboard.server" level="INFO" />
+    <logger name="org.thingsboard.server" level="TRACE" />
     <logger name="akka" level="INFO" />
 
     <root level="INFO">

@@ -176,7 +176,7 @@ actors:
   statistics:
     # Enable/disable actor statistics
     enabled: "${ACTORS_STATISTICS_ENABLED:true}"
-    persist_frequency: "${ACTORS_STATISTICS_PERSIST_FREQUENCY:60000}"
+    persist_frequency: "${ACTORS_STATISTICS_PERSIST_FREQUENCY:3600000}"
 
 # Cache parameters
 cache:

@@ -17,6 +17,7 @@ package org.thingsboard.server.common.data.rule;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.SearchTextBased;
 import org.thingsboard.server.common.data.id.RuleId;
@@ -24,6 +25,7 @@ import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.plugin.ComponentLifecycleState;
 
 @Data
+@EqualsAndHashCode(callSuper = true)
 public class RuleMetaData extends SearchTextBased<RuleId> implements HasName {
 
     private static final long serialVersionUID = -5656679015122935465L;

@@ -91,7 +91,9 @@ public class BaseRuleService extends AbstractEntityService implements RuleServic
         if (rule.getProcessor() != null && !rule.getProcessor().isNull()) {
             validateComponentJson(rule.getProcessor(), ComponentType.PROCESSOR);
         }
-        validateComponentJson(rule.getAction(), ComponentType.ACTION);
+        if (rule.getAction() != null && !rule.getAction().isNull()) {
+            validateComponentJson(rule.getAction(), ComponentType.ACTION);
+        }
         validateRuleAndPluginState(rule);
         return ruleDao.save(rule);
     }
@@ -129,6 +131,9 @@ public class BaseRuleService extends AbstractEntityService implements RuleServic
     }
 
     private void validateRuleAndPluginState(RuleMetaData rule) {
+        if (org.springframework.util.StringUtils.isEmpty(rule.getPluginToken())) {
+            return;
+        }
         PluginMetaData pluginMd = pluginService.findPluginByApiToken(rule.getPluginToken());
         if (pluginMd == null) {
             throw new IncorrectParameterException("Rule points to non-existent plugin!");

@@ -125,10 +125,10 @@ public class AlarmProcessor implements RuleProcessor<AlarmProcessorConfiguration
             Alarm alarm = buildAlarm(ctx, msg);
             existing = ctx.createOrUpdateAlarm(alarm);
             if (existing.getStartTs() == alarm.getStartTs()) {
-                log.debug("[{}][{}] New Active Alarm detected");
+                log.debug("[{}][{}] New Active Alarm detected", ctx.getRuleId(), existing.getId());
                 md.put(IS_NEW_ALARM, Boolean.TRUE);
             } else {
-                log.debug("[{}][{}] Existing Active Alarm detected");
+                log.debug("[{}][{}] Existing Active Alarm detected", ctx.getRuleId(), existing.getId());
                 md.put(IS_EXISTING_ALARM, Boolean.TRUE);
             }
         } else if (isClearedAlarm) {

@@ -165,11 +165,11 @@
         <fieldset ng-disabled="loading || !isEdit || isReadOnly">
             <md-input-container ng-if="!isEdit || isReadOnly" flex class="md-block">
                 <label translate>plugin.plugin</label>
-                <input required name="name" ng-model="plugin.name">
+                <input name="name" ng-model="plugin.name">
             </md-input-container>
             <tb-plugin-select ng-show="isEdit && !isReadOnly" flex
                       ng-model="plugin"
-                      tb-required="true"
+                      tb-required="false"
                       the-form="theForm"
                       plugins-scope="action">
             </tb-plugin-select>

@@ -85,10 +85,11 @@ export default function RuleDirective($compile, $templateCache, $mdDialog, $docu
             if (scope.rule) {
                 var valid = scope.rule.filters && scope.rule.filters.length > 0;
                 scope.theForm.$setValidity('filters', valid);
-                valid = angular.isDefined(scope.rule.pluginToken) && scope.rule.pluginToken != null;
-                scope.theForm.$setValidity('plugin', valid);
-                valid = angular.isDefined(scope.rule.action) && scope.rule.action != null;
-                scope.theForm.$setValidity('action', valid);
+                var processorDefined = angular.isDefined(scope.rule.processor) && scope.rule.processor != null;
+                var pluginDefined = angular.isDefined(scope.rule.pluginToken) && scope.rule.pluginToken != null;
+                var pluginActionDefined = angular.isDefined(scope.rule.action) && scope.rule.action != null;
+                valid = processorDefined && !pluginDefined || (pluginDefined && pluginActionDefined);
+                scope.theForm.$setValidity('processorOrPlugin', valid);
             }
         };
 
@@ -160,6 +161,7 @@ export default function RuleDirective($compile, $templateCache, $mdDialog, $docu
         scope.$watch('rule.processor', function(newVal, prevVal) {
             if (scope.rule && scope.isEdit && !angular.equals(newVal, prevVal)) {
                 scope.theForm.$setDirty();
+                scope.updateValidity();
             }
         }, true);