feat(scheduler): 允许集群判断规则为空

service-scheduler/src/main/java/com/lanyuanxiaoyao/service/scheduler/quartz/distribute/cluster/Cluster.java

@@ -1,5 +1,6 @@
 package com.lanyuanxiaoyao.service.scheduler.quartz.distribute.cluster;
 
+import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.StrUtil;
 import com.lanyuanxiaoyao.service.scheduler.quartz.distribute.strategy.AvailableStrategy;
 import org.slf4j.Logger;
@@ -18,6 +19,10 @@ public class Cluster {
     private final String queue;
     private final AvailableStrategy availableStrategy;
 
+    public Cluster(String cluster, String queue) {
+        this(cluster, queue, null);
+    }
+
     public Cluster(String cluster, String queue, AvailableStrategy availableStrategy) {
         this.cluster = cluster;
         this.queue = queue;
@@ -34,6 +39,9 @@ public class Cluster {
 
     public boolean available() {
         try {
+            if (ObjectUtil.isNull(availableStrategy)) {
+                return true;
+            }
             return availableStrategy.available();
         } catch (Throwable throwable) {
             logger.error(StrUtil.format("Check cluster {} available fail", this.cluster), throwable);