temporary code

shardingsphere-control-panel/shardingsphere-orchestration/shardingsphere-orchestration-core/shardingsphere-orchestration-core-configcenter/src/main/java/org/apache/shardingsphere/orchestration/core/configcenter/listener/SchemaChangedListener.java

@@ -118,8 +118,9 @@ public final class SchemaChangedListener extends PostShardingCenterRepositoryEve
     }
     
     private ShardingOrchestrationEvent createRuleChangedEvent(final String shardingSchemaName, final DataChangedEvent event) {
+        YamlRootRuleConfigurations configurations = YamlEngine.unmarshal(event.getValue(), YamlRootRuleConfigurations.class);
         return new RuleConfigurationsChangedEvent(
-                shardingSchemaName, new YamlRuleConfigurationSwapperEngine().swapToRuleConfigurations(YamlEngine.unmarshal(event.getValue(), YamlRootRuleConfigurations.class).getRules()));
+                shardingSchemaName, new YamlRuleConfigurationSwapperEngine().swapToRuleConfigurations(null == configurations ? new LinkedList<>() : configurations.getRules()));
     }
     
     private ShardingOrchestrationEvent createUpdatedEventForNewSchema(final String shardingSchemaName) {

shardingsphere-control-panel/shardingsphere-orchestration/shardingsphere-orchestration-core/shardingsphere-orchestration-core-metadatacenter/src/main/java/org/apache/shardingsphere/orchestration/core/metadatacenter/MetaDataCenter.java

@@ -63,5 +63,4 @@ public final class MetaDataCenter {
         }
         return Optional.of(new RuleSchemaMetaDataYamlSwapper().swapToObject(YamlEngine.unmarshal(path, YamlRuleSchemaMetaData.class)));
     }
-    
 }

shardingsphere-control-panel/shardingsphere-orchestration/shardingsphere-orchestration-core/shardingsphere-orchestration-core-schema/src/main/java/org/apache/shardingsphere/orchestration/core/schema/OrchestrationSchemaContexts.java

@@ -151,9 +151,11 @@ public abstract class OrchestrationSchemaContexts implements SchemaContextsAware
      */
     @Subscribe
     public synchronized void renew(final SchemaAddedEvent schemaAddedEvent) throws Exception {
+        String schemaName = schemaAddedEvent.getShardingSchemaName();
         Map<String, SchemaContext> schemas = new HashMap<>(schemaContexts.getSchemaContexts());
-        schemas.put(schemaAddedEvent.getShardingSchemaName(), getAddedSchemaContext(schemaAddedEvent));
+        schemas.put(schemaName, getAddedSchemaContext(schemaAddedEvent));
         schemaContexts = new SchemaContexts(schemas, schemaContexts.getProps(), schemaContexts.getAuthentication());
+        ShardingOrchestrationFacade.getInstance().getMetaDataCenter().persistMetaDataCenterNode(schemaName, schemaContexts.getSchemaContexts().get(schemaName).getSchema().getMetaData().getSchema());
     }
     
     /**

shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/yaml/engine/YamlEngine.java

@@ -83,7 +83,7 @@ public final class YamlEngine {
      * @return object from YAML
      */
     public static <T> T unmarshal(final String yamlContent, final Class<T> classType) {
-        return Strings.isNullOrEmpty(yamlContent) ? null : new Yaml(new ShardingSphereYamlConstructor(classType)).loadAs(yamlContent, classType);
+        return new Yaml(new ShardingSphereYamlConstructor(classType)).loadAs(yamlContent, classType);
     }
     
     /**

shardingsphere-proxy/shardingsphere-proxy-bootstrap/src/main/resources/conf/server.yaml

@@ -21,26 +21,26 @@
 # 
 ######################################################################################################
 #
-#orchestration:
-#  orchestration_ds:
-#    orchestrationType: registry_center,config_center,metadata_center
-#    instanceType: zookeeper
-#    serverLists: localhost:2181
-#    namespace: orchestration
-#    props:
-#      overwrite: false
-#      retryIntervalMilliseconds: 500
-#      timeToLiveSeconds: 60
-#      maxRetries: 3
-#      operationTimeoutMilliseconds: 500
-#
-#authentication:
-#  users:
-#    root:
-#      password: root
-#    sharding:
-#      password: sharding
-#      authorizedSchemas: sharding_db
+orchestration:
+  orchestration_ds:
+    orchestrationType: registry_center,config_center,metadata_center
+    instanceType: zookeeper
+    serverLists: localhost:2181
+    namespace: orchestration1
+    props:
+      overwrite: false
+      retryIntervalMilliseconds: 500
+      timeToLiveSeconds: 60
+      maxRetries: 3
+      operationTimeoutMilliseconds: 500
+
+authentication:
+  users:
+    root:
+      password: root
+    sharding:
+      password: sharding
+      authorizedSchemas: sharding_db
 #
 #metrics:
 #   name: prometheus