加入节点的阀门

src/main/java/com/thebeastshop/liteflow/core/Component.java

@@ -51,6 +51,10 @@ public abstract class Component {
 	
 	protected abstract void process() throws Exception;
 	
+	protected boolean isAccess(){
+		return true;
+	}
+	
 	public boolean isContinueOnError() {
 		return continueOnError;
 	}

src/main/java/com/thebeastshop/liteflow/core/FlowExecutor.java

@@ -73,7 +73,10 @@ public class FlowExecutor {
 					for(Node node : nodeList){
 						component = node.getInstance();
 						try{
-							component.setSlotIndex(slotIndex).execute();
+							component.setSlotIndex(slotIndex);
+							if(component.isAccess()){
+								component.execute();
+							}
 						}catch(Throwable t){
 							if(component.isContinueOnError()){
 								LOG.error("component[{}] cause error,but flow is still go on",t,component.getClass().getSimpleName());