dubbo provider add getBusinessParams

chaosblade-exec-plugin/chaosblade-exec-plugin-dubbo/src/main/java/com/alibaba/chaosblade/exec/plugin/dubbo/consumer/DubboConsumerEnhancer.java

@@ -111,12 +111,16 @@ protected Object getUrl(Object instance, Object invocation) throws Exception {
         }
         return ReflectUtil.invokeMethod(instance, GET_URL, new Object[0], false);
     }
+
     @Override
     protected Map<String, Map<String, String>> getBusinessParams(final Object invocation) throws Exception {
         return BusinessParamUtil.getAndParse(DubboConstant.TARGET_NAME, new BusinessDataGetter() {
             @Override
             public String get(String key) throws Exception {
                 Map<String, String> attachments = ReflectUtil.invokeMethod(invocation, GET_ATTACHMENTS, new Object[0], false);
+                if (attachments == null || attachments.isEmpty()) {
+                    return null;
+                }
                 return attachments.get(key);
             }
         });

chaosblade-exec-plugin/chaosblade-exec-plugin-dubbo/src/main/java/com/alibaba/chaosblade/exec/plugin/dubbo/provider/DubboProviderEnhancer.java

@@ -18,9 +18,11 @@
 
 import com.alibaba.chaosblade.exec.common.aop.EnhancerModel;
 import com.alibaba.chaosblade.exec.common.model.action.delay.TimeoutExecutor;
+import com.alibaba.chaosblade.exec.common.util.BusinessParamUtil;
 import com.alibaba.chaosblade.exec.common.util.ReflectUtil;
 import com.alibaba.chaosblade.exec.plugin.dubbo.DubboConstant;
 import com.alibaba.chaosblade.exec.plugin.dubbo.DubboEnhancer;
+import com.alibaba.chaosblade.exec.spi.BusinessDataGetter;
 
 import java.util.Map;
 
@@ -41,8 +43,17 @@ protected TimeoutExecutor createTimeoutExecutor(ClassLoader classLoader, long ti
     }
 
     @Override
-    protected Map<String, Map<String, String>> getBusinessParams(Object invocation) throws Exception {
-        return null;
+    protected Map<String, Map<String, String>> getBusinessParams(final Object invocation) throws Exception {
+        return BusinessParamUtil.getAndParse(DubboConstant.TARGET_NAME, new BusinessDataGetter() {
+            @Override
+            public String get(String key) throws Exception {
+                Map<String, String> attachments = ReflectUtil.invokeMethod(invocation, GET_ATTACHMENTS, new Object[0], false);
+                if (attachments == null || attachments.isEmpty()) {
+                    return null;
+                }
+                return attachments.get(key);
+            }
+        });
     }
 
     @Override