feat(client): Add more observability in apollo config client

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/AbstractConfigFile.java

@@ -17,8 +17,7 @@
 package com.ctrip.framework.apollo.internals;
 
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_CONFIGCHANGES;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.build.ApolloInjector;
 import com.ctrip.framework.apollo.core.utils.DeferredLoggerFactory;
 import com.ctrip.framework.apollo.enums.ConfigSourceType;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/AbstractConfigRepository.java

@@ -16,8 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.build.ApolloInjector;
 import com.ctrip.framework.apollo.util.factory.PropertiesFactory;
 import java.util.List;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/ConfigMonitorInitializer.java

@@ -22,15 +22,15 @@
 import com.ctrip.framework.apollo.monitor.internal.DefaultConfigMonitor;
 import com.ctrip.framework.apollo.monitor.internal.collector.MetricsCollector;
 import com.ctrip.framework.apollo.monitor.internal.collector.MetricsCollectorManager;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloExceptionCollector;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloRunningParamsCollector;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloThreadPoolCollector;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultMetricsCollectorManager;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientExceptionCollector;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientBootstrapArgsCollector;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientThreadPoolCollector;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultMetricsCollectorManager;
 import com.ctrip.framework.apollo.monitor.internal.exporter.MetricsExporter;
 import com.ctrip.framework.apollo.monitor.internal.exporter.MetricsExporterFactory;
 import com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite;
-import com.ctrip.framework.apollo.monitor.internal.tracer.MonitorMessageProducer;
+import com.ctrip.framework.apollo.monitor.internal.tracer.ClientMonitorMessageProducer;
 import com.ctrip.framework.apollo.tracer.internals.NullMessageProducer;
 import com.ctrip.framework.apollo.tracer.internals.cat.CatMessageProducer;
 import com.ctrip.framework.apollo.tracer.internals.cat.CatNames;
@@ -73,14 +73,13 @@ private static List<MetricsCollector> initializeCollectors(
       DefaultMetricsCollectorManager manager) {
     DefaultConfigManager configManager = (DefaultConfigManager) ApolloInjector.getInstance(
         ConfigManager.class);
-    DefaultApolloExceptionCollector exceptionCollector = new DefaultApolloExceptionCollector();
-    DefaultApolloThreadPoolCollector threadPoolCollector = new DefaultApolloThreadPoolCollector(
+    DefaultApolloClientExceptionCollector exceptionCollector = new DefaultApolloClientExceptionCollector();
+    DefaultApolloClientThreadPoolCollector threadPoolCollector = new DefaultApolloClientThreadPoolCollector(
         RemoteConfigRepository.m_executorService, AbstractConfig.m_executorService,
         AbstractConfigFile.m_executorService);
-    DefaultApolloNamespaceCollector namespaceCollector = new DefaultApolloNamespaceCollector(
-        configManager.m_configs, configManager.m_configLocks, configManager.m_configFiles,
-        configManager.m_configFileLocks);
-    DefaultApolloRunningParamsCollector startupCollector = new DefaultApolloRunningParamsCollector(
+    DefaultApolloClientNamespaceCollector namespaceCollector = new DefaultApolloClientNamespaceCollector(
+        configManager.m_configs, configManager.m_configFiles);
+    DefaultApolloClientBootstrapArgsCollector startupCollector = new DefaultApolloClientBootstrapArgsCollector(
         m_configUtil);
 
     List<MetricsCollector> collectors = Lists.newArrayList(exceptionCollector, namespaceCollector,
@@ -99,13 +98,13 @@ private static void initializeConfigMonitor(List<MetricsCollector> collectors,
       MetricsExporter metricsExporter) {
     DefaultConfigMonitor defaultConfigMonitor = (DefaultConfigMonitor) ApolloInjector.getInstance(
         ConfigMonitor.class);
-    DefaultApolloExceptionCollector exceptionCollector = (DefaultApolloExceptionCollector) collectors.get(
+    DefaultApolloClientExceptionCollector exceptionCollector = (DefaultApolloClientExceptionCollector) collectors.get(
         0);
-    DefaultApolloNamespaceCollector namespaceCollector = (DefaultApolloNamespaceCollector) collectors.get(
+    DefaultApolloClientNamespaceCollector namespaceCollector = (DefaultApolloClientNamespaceCollector) collectors.get(
         1);
-    DefaultApolloThreadPoolCollector threadPoolCollector = (DefaultApolloThreadPoolCollector) collectors.get(
+    DefaultApolloClientThreadPoolCollector threadPoolCollector = (DefaultApolloClientThreadPoolCollector) collectors.get(
         2);
-    DefaultApolloRunningParamsCollector startupCollector = (DefaultApolloRunningParamsCollector) collectors.get(
+    DefaultApolloClientBootstrapArgsCollector startupCollector = (DefaultApolloClientBootstrapArgsCollector) collectors.get(
         3);
     defaultConfigMonitor.init(namespaceCollector, threadPoolCollector, exceptionCollector,
         startupCollector, metricsExporter);
@@ -118,7 +117,7 @@ public static MessageProducerComposite initializeMessageProducerComposite() {
 
     // The producer that comes with the client
     if (m_configUtil.isClientMonitorEnabled()) {
-      producers.add(new MonitorMessageProducer());
+      producers.add(new ClientMonitorMessageProducer());
     }
 
     if (ClassLoaderUtil.isClassPresent(CatNames.CAT_CLASS)) {

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/ConfigServiceLocator.java

@@ -16,10 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_SERVICES;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_META_SERVICE;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.build.ApolloInjector;
 import com.ctrip.framework.apollo.core.ApolloClientSystemConsts;
 import com.ctrip.framework.apollo.core.ServiceNameConsts;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/DefaultConfig.java

@@ -16,8 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_CONFIGCHANGES;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.core.utils.DeferredLoggerFactory;
 import com.ctrip.framework.apollo.enums.ConfigSourceType;
 import com.google.common.collect.Maps;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/DefaultConfigManager.java

@@ -16,17 +16,15 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector.NAMESPACE_MONITOR;
-import static com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector.NAMESPACE_USAGE_COUNT;
+import static com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.APOLLO_CLIENT_NAMESPACE_USAGE;
 
 import com.ctrip.framework.apollo.Config;
 import com.ctrip.framework.apollo.ConfigFile;
 import com.ctrip.framework.apollo.build.ApolloInjector;
 import com.ctrip.framework.apollo.core.enums.ConfigFileFormat;
-import com.ctrip.framework.apollo.monitor.internal.MonitorConstant;
-import com.ctrip.framework.apollo.monitor.internal.model.MetricsEvent;
 import com.ctrip.framework.apollo.spi.ConfigFactory;
 import com.ctrip.framework.apollo.spi.ConfigFactoryManager;
+import com.ctrip.framework.apollo.tracer.Tracer;
 import com.google.common.collect.Maps;
 import java.util.Map;
 
@@ -63,9 +61,7 @@ public Config getConfig(String namespace) {
       }
     }
 
-    MetricsEvent.builder().withName(NAMESPACE_USAGE_COUNT)
-        .putAttachment(MonitorConstant.NAMESPACE, namespace)
-        .withTag(NAMESPACE_MONITOR).push();
+    Tracer.logEvent(APOLLO_CLIENT_NAMESPACE_USAGE,namespace);
 
     return config;
   }

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/DefaultInjector.java

@@ -19,9 +19,9 @@
 import com.ctrip.framework.apollo.exceptions.ApolloConfigException;
 import com.ctrip.framework.apollo.monitor.api.ConfigMonitor;
 import com.ctrip.framework.apollo.monitor.internal.DefaultConfigMonitor;
-import com.ctrip.framework.apollo.monitor.internal.exporter.internals.DefaultMetricsExporterFactory;
+import com.ctrip.framework.apollo.monitor.internal.exporter.impl.DefaultMetricsExporterFactory;
 import com.ctrip.framework.apollo.monitor.internal.collector.MetricsCollectorManager;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultMetricsCollectorManager;
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultMetricsCollectorManager;
 import com.ctrip.framework.apollo.monitor.internal.exporter.MetricsExporterFactory;
 import com.ctrip.framework.apollo.spi.ApolloInjectorCustomizer;
 import com.ctrip.framework.apollo.spi.ConfigFactory;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/LocalFileConfigRepository.java

@@ -16,8 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.core.utils.DeferredLoggerFactory;
 import com.ctrip.framework.apollo.enums.ConfigSourceType;
 import java.io.File;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/RemoteConfigLongPollService.java

@@ -16,8 +16,8 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.NAMESPACE;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
+import static com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.APOLLO_CLIENT_NAMESPACE_TIMEOUT;
 
 import com.ctrip.framework.apollo.build.ApolloInjector;
 import com.ctrip.framework.apollo.core.ConfigConsts;
@@ -31,8 +31,6 @@
 import com.ctrip.framework.apollo.core.utils.ApolloThreadFactory;
 import com.ctrip.framework.apollo.core.utils.StringUtils;
 import com.ctrip.framework.apollo.exceptions.ApolloConfigException;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector;
-import com.ctrip.framework.apollo.monitor.internal.model.MetricsEvent;
 import com.ctrip.framework.apollo.spi.ConfigServiceLoadBalancerClient;
 import com.ctrip.framework.apollo.tracer.Tracer;
 import com.ctrip.framework.apollo.tracer.spi.Transaction;
@@ -219,9 +217,7 @@ private void doLongPollingRefresh(String appId, String cluster, String dataCente
         transaction.setStatus(ex);
         long sleepTimeInSecond = m_longPollFailSchedulePolicyInSecond.fail();
         if (ex.getCause() instanceof SocketTimeoutException) {
-          MetricsEvent.builder().withName(DefaultApolloNamespaceCollector.NAMESPACE_TIMEOUT)
-              .putAttachment(NAMESPACE, assembleNamespaces())
-              .withTag(DefaultApolloNamespaceCollector.NAMESPACE_MONITOR).push();
+          Tracer.logEvent(APOLLO_CLIENT_NAMESPACE_TIMEOUT,assembleNamespaces());
         }
         logger.warn(
             "Long polling failed, will retry in {} seconds. appId: {}, cluster: {}, namespaces: {}, long polling url: {}, reason: {}",

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/RemoteConfigRepository.java

@@ -16,14 +16,10 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.NAMESPACE;
-import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.TIMESTAMP;
-import static com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector.NAMESPACE_MONITOR;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_CONFIGS;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_CONFIGMETA;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_VERSION;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIGSERVICE;
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
+import static com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.APOLLO_CLIENT_NAMESPACE_FIRST_LOAD_SPEND;
+import static com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.NAMESPACE_MONITOR;
+import static com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.APOLLO_CLIENT_NAMESPACE_NOT_FOUND;
 
 import com.ctrip.framework.apollo.Apollo;
 import com.ctrip.framework.apollo.build.ApolloInjector;
@@ -40,7 +36,6 @@
 import com.ctrip.framework.apollo.enums.ConfigSourceType;
 import com.ctrip.framework.apollo.exceptions.ApolloConfigException;
 import com.ctrip.framework.apollo.exceptions.ApolloConfigStatusCodeException;
-import com.ctrip.framework.apollo.monitor.internal.collector.internal.DefaultApolloNamespaceCollector;
 import com.ctrip.framework.apollo.monitor.internal.model.MetricsEvent;
 import com.ctrip.framework.apollo.tracer.Tracer;
 import com.ctrip.framework.apollo.tracer.spi.Transaction;
@@ -124,10 +119,12 @@ public Properties getConfig() {
     if (m_configCache.get() == null) {
       long start = System.currentTimeMillis();
       this.sync();
-      MetricsEvent.builder().withName(DefaultApolloNamespaceCollector.NAMESPACE_FIRST_LOAD_SPEND).withTag(
-              NAMESPACE_MONITOR)
-          .putAttachment(NAMESPACE, m_namespace)
-          .putAttachment(TIMESTAMP, System.currentTimeMillis() - start).push();
+      Tracer.logEvent(APOLLO_CLIENT_NAMESPACE_FIRST_LOAD_SPEND+m_namespace,
+          String.valueOf(System.currentTimeMillis() - start));
+//      MetricsEvent.builder().withName(APOLLO_CLIENT_NAMESPACE_FIRST_LOAD_SPEND).withTag(
+//              NAMESPACE_MONITOR)
+//          .putAttachment(NAMESPACE, m_namespace)
+//          .putAttachment(TIMESTAMP, System.currentTimeMillis() - start).push();
     }
     return transformApolloConfigToProperties(m_configCache.get());
   }
@@ -278,8 +275,8 @@ private ApolloConfig loadApolloConfig() {
                 appId, cluster, m_namespace);
             statusCodeException = new ApolloConfigStatusCodeException(ex.getStatusCode(),
                 message);
-            MetricsEvent.builder().withName(DefaultApolloNamespaceCollector.NAMESPACE_NOT_FOUND).withTag(
-                NAMESPACE_MONITOR).putAttachment(NAMESPACE, m_namespace).push();
+            Tracer.logEvent(APOLLO_CLIENT_NAMESPACE_NOT_FOUND,m_namespace);
+
           }
           Tracer.logEvent(APOLLO_CONFIG_EXCEPTION, ExceptionUtil.getDetailMessage(statusCodeException));
           transaction.setStatus(statusCodeException);

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/SimpleConfig.java

@@ -16,8 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CLIENT_CONFIGCHANGES;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.enums.ConfigSourceType;
 import java.util.Collections;
 import java.util.List;

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/YamlConfigFile.java

@@ -16,8 +16,7 @@
  */
 package com.ctrip.framework.apollo.internals;
 
-import static com.ctrip.framework.apollo.monitor.internal.tracer.MessageProducerComposite.APOLLO_CONFIG_EXCEPTION;
-
+import static com.ctrip.framework.apollo.monitor.internal.MonitorConstant.*;
 import com.ctrip.framework.apollo.util.ExceptionUtil;
 import java.util.Properties;
 

apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloClientBootstrapArgsMonitorApi.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2022  Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+package com.ctrip.framework.apollo.monitor.api;
+
+import com.ctrip.framework.apollo.monitor.internal.collector.jmx.ApolloJmxBootstrapArgsMonitor;
+import javax.management.MXBean;
+
+/**
+ * @author Rawven
+ */
+public interface ApolloClientBootstrapArgsMonitorApi extends ApolloJmxBootstrapArgsMonitor {
+
+}

apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloExceptionMonitorApi.java → apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloClientExceptionMonitorApi.java

@@ -16,23 +16,16 @@
  */
 package com.ctrip.framework.apollo.monitor.api;
 
+import com.ctrip.framework.apollo.monitor.internal.collector.jmx.ApolloJmxExceptionMonitor;
 import java.util.List;
-import javax.management.MXBean;
 
 /**
  * @author Rawven
  */
-@MXBean
-public interface ApolloExceptionMonitorApi {
-
-
-  /**
-   * get the number of exceptions
-   */
-  Integer getExceptionNum();
+public interface ApolloClientExceptionMonitorApi extends ApolloJmxExceptionMonitor {
 
   /**
    * get exception details
    */
-  List<String> getExceptionDetails();
+  List<Exception> getExceptionList();
 }

apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloClientNamespaceMonitorApi.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2022 Apollo Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+package com.ctrip.framework.apollo.monitor.api;
+
+import com.ctrip.framework.apollo.monitor.internal.collector.impl.DefaultApolloClientNamespaceCollector.NamespaceMetrics;
+import com.ctrip.framework.apollo.monitor.internal.collector.jmx.ApolloJmxNamespaceMonitor;
+import java.util.Map;
+
+/**
+ * @author Rawven
+ */
+public interface ApolloClientNamespaceMonitorApi extends ApolloJmxNamespaceMonitor {
+
+  Map<String, NamespaceMetrics> getNamespaceMetrics();
+
+}

apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloNamespaceMonitorApi.java → apollo-client/src/main/java/com/ctrip/framework/apollo/monitor/api/ApolloClientThreadPoolMonitorApi.java

@@ -16,38 +16,13 @@
  */
 package com.ctrip.framework.apollo.monitor.api;
 
-import java.util.List;
+import com.ctrip.framework.apollo.monitor.internal.collector.jmx.ApolloJmxThreadPoolMonitor;
 import javax.management.MXBean;
 
 /**
  * @author Rawven
  */
-@MXBean
-public interface ApolloNamespaceMonitorApi {
+public interface ApolloClientThreadPoolMonitorApi extends ApolloJmxThreadPoolMonitor {
 
-  String getNamespaceReleaseKey(String namespace);
 
-  long getNamespaceUsageCount(String namespace);
-
-  String getNamespaceLatestUpdateTime(String namespace);
-
-  long getNamespaceFirstLoadSpend(String namespace);
-
-  String getNamespace404();
-
-  String getNamespaceTimeout();
-
-  List<String> getNamespaceItemName(String namespace);
-
-  List<String> getAllNamespaceReleaseKey();
-
-  List<String> getAllNamespaceUsageCount();
-
-  List<String> getAllNamespacesLatestUpdateTime();
-
-  List<String> getAllUsedNamespaceName();
-
-  List<String> getAllNamespaceFirstLoadSpend();
-
-  List<String> getAllNamespaceItemName();
 }