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The following commit(s) were added to refs/heads/master by this push:
     new db7c90488 [Feature] Introduce a new plugin RestExtension to extend 
rest service (#4112)
db7c90488 is described below

commit db7c9048862718ead6fe2e548e2fac2411d02890
Author: baiyangtx <[email protected]>
AuthorDate: Mon Mar 9 17:23:14 2026 +0800

    [Feature] Introduce a new plugin RestExtension to extend rest service 
(#4112)
    
    * [Feature] Introduce a new plugin RestExtension to extend rest service
    
    Cherry-picked from 2010d5998a0770fa7b58456e51d63538af9e5e78.
    
    Co-Authored-By: Aime <[email protected]>
    Change-Id: Iedfc5a383dabe42c96ce4030411cb93adc468a77
    
    * refactor
    
    * typo
    
    ---------
    
    Co-authored-by: zhangyongxiang.alpha <[email protected]>
    Co-authored-by: Aime <[email protected]>
---
 .../apache/amoro/server/AmoroServiceContainer.java | 25 ++++++++---
 .../apache/amoro/server/RestCatalogService.java    | 48 ++++++++++++++++++++-
 .../org/apache/amoro/server/RestExtension.java     | 31 ++++++++++++++
 .../apache/amoro/server/RestExtensionFactory.java  | 34 +++++++++++++++
 .../apache/amoro/server/RestExtensionManager.java  | 50 ++++++++++++++++++++++
 .../server/manager/AbstractPluginManager.java      |  7 ++-
 .../amoro/server/manager/PluginConfiguration.java  |  5 +++
 .../org.apache.amoro.server.RestExtensionFactory   | 19 ++++++++
 .../org/apache/amoro/server/AmsEnvironment.java    |  8 ++++
 .../amoro-bin/conf/plugins/rest-extensions.yaml    | 22 ++++++++++
 10 files changed, 241 insertions(+), 8 deletions(-)

diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/AmoroServiceContainer.java 
b/amoro-ams/src/main/java/org/apache/amoro/server/AmoroServiceContainer.java
index 5d76e3983..19bf7be98 100644
--- a/amoro-ams/src/main/java/org/apache/amoro/server/AmoroServiceContainer.java
+++ b/amoro-ams/src/main/java/org/apache/amoro/server/AmoroServiceContainer.java
@@ -21,6 +21,7 @@ package org.apache.amoro.server;
 import static 
org.apache.amoro.server.AmoroManagementConf.USE_MASTER_SLAVE_MODE;
 
 import io.javalin.Javalin;
+import io.javalin.http.Context;
 import io.javalin.http.HttpCode;
 import io.javalin.http.staticfiles.Location;
 import org.apache.amoro.Constants;
@@ -97,9 +98,11 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
+import java.util.function.Function;
 
 public class AmoroServiceContainer {
 
@@ -356,7 +359,12 @@ public class AmoroServiceContainer {
     DashboardServer dashboardServer =
         new DashboardServer(
             serviceConfig, catalogManager, tableManager, optimizerManager, 
terminalManager, this);
-    RestCatalogService restCatalogService = new 
RestCatalogService(catalogManager, tableManager);
+    RestExtensionManager restExtensionManager = new RestExtensionManager();
+    restExtensionManager.initialize();
+    List<RestExtension> restExtensions =
+        restExtensionManager.loadExtensions(serviceConfig, catalogManager, 
tableManager);
+    Function<Context, Optional<RestExtension>> handleExceptionByExtension =
+        ctx -> restExtensions.stream().filter(ext -> 
ext.needHandleException(ctx)).findFirst();
 
     httpServer =
         Javalin.create(
@@ -374,7 +382,9 @@ public class AmoroServiceContainer {
     httpServer.routes(
         () -> {
           dashboardServer.endpoints().addEndpoints();
-          restCatalogService.endpoints().addEndpoints();
+          for (RestExtension restExtension : restExtensions) {
+            restExtension.endpoints().addEndpoints();
+          }
         });
 
     httpServer.before(
@@ -389,8 +399,9 @@ public class AmoroServiceContainer {
     httpServer.exception(
         Exception.class,
         (e, ctx) -> {
-          if (restCatalogService.needHandleException(ctx)) {
-            restCatalogService.handleException(e, ctx);
+          Optional<RestExtension> extension = 
handleExceptionByExtension.apply(ctx);
+          if (extension.isPresent()) {
+            extension.get().handleException(e, ctx);
           } else {
             dashboardServer.handleException(e, ctx);
           }
@@ -399,7 +410,8 @@ public class AmoroServiceContainer {
     httpServer.error(
         HttpCode.NOT_FOUND.getStatus(),
         ctx -> {
-          if (!restCatalogService.needHandleException(ctx)) {
+          Optional<RestExtension> extension = 
handleExceptionByExtension.apply(ctx);
+          if (!extension.isPresent()) {
             ctx.json(new ErrorResponse(HttpCode.NOT_FOUND, "page not found!", 
""));
           }
         });
@@ -407,7 +419,8 @@ public class AmoroServiceContainer {
     httpServer.error(
         HttpCode.INTERNAL_SERVER_ERROR.getStatus(),
         ctx -> {
-          if (!restCatalogService.needHandleException(ctx)) {
+          Optional<RestExtension> extension = 
handleExceptionByExtension.apply(ctx);
+          if (!extension.isPresent()) {
             ctx.json(new ErrorResponse(HttpCode.INTERNAL_SERVER_ERROR, 
"internal error!", ""));
           }
         });
diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/RestCatalogService.java 
b/amoro-ams/src/main/java/org/apache/amoro/server/RestCatalogService.java
index bb3d47cc0..aa342beb9 100644
--- a/amoro-ams/src/main/java/org/apache/amoro/server/RestCatalogService.java
+++ b/amoro-ams/src/main/java/org/apache/amoro/server/RestCatalogService.java
@@ -36,6 +36,7 @@ import io.javalin.http.HttpCode;
 import io.javalin.plugin.json.JavalinJackson;
 import org.apache.amoro.ServerTableIdentifier;
 import org.apache.amoro.TableFormat;
+import org.apache.amoro.config.Configurations;
 import org.apache.amoro.events.IcebergReportEvent;
 import org.apache.amoro.exception.ObjectNotExistsException;
 import org.apache.amoro.properties.CatalogMetaProperties;
@@ -44,6 +45,7 @@ import org.apache.amoro.server.catalog.InternalCatalog;
 import org.apache.amoro.server.catalog.ServerCatalog;
 import org.apache.amoro.server.manager.EventsManager;
 import org.apache.amoro.server.persistence.PersistentBase;
+import org.apache.amoro.server.table.TableManager;
 import org.apache.amoro.server.table.internal.InternalTableCreator;
 import org.apache.amoro.server.table.internal.InternalTableHandler;
 import org.apache.amoro.server.table.internal.InternalTableManager;
@@ -92,7 +94,7 @@ import java.util.stream.Collectors;
  * 
href="https://github.com/apache/iceberg/blob/main/open-api/rest-catalog-open-api.yaml";>iceberg
  * rest-catalog-open-api </a>
  */
-public class RestCatalogService extends PersistentBase {
+public class RestCatalogService extends PersistentBase implements 
RestExtension {
 
   private static final Logger LOG = 
LoggerFactory.getLogger(RestCatalogService.class);
 
@@ -117,6 +119,7 @@ public class RestCatalogService extends PersistentBase {
     this.jsonMapper = new JavalinJackson(objectMapper);
   }
 
+  @Override
   public EndpointGroup endpoints() {
     return () -> {
       // for iceberg rest catalog api
@@ -146,10 +149,12 @@ public class RestCatalogService extends PersistentBase {
     };
   }
 
+  @Override
   public boolean needHandleException(Context ctx) {
     return ctx.req.getRequestURI().startsWith(ICEBERG_REST_API_PREFIX);
   }
 
+  @Override
   public void handleException(Exception e, Context ctx) {
     IcebergRestErrorCode code = IcebergRestErrorCode.exceptionToCode(e);
     ErrorResponse response =
@@ -508,4 +513,45 @@ public class RestCatalogService extends PersistentBase {
       return InternalServerError;
     }
   }
+
+  public static class RestCatalogServiceFactory implements 
RestExtensionFactory {
+
+    private CatalogManager catalogManager;
+    private TableManager tableManager;
+    private Configurations serviceConfig;
+
+    @Override
+    public RestExtensionFactory withServiceConfig(Configurations 
serviceConfig) {
+      this.serviceConfig = serviceConfig;
+      return this;
+    }
+
+    @Override
+    public RestExtensionFactory withCatalogManager(CatalogManager 
catalogManager) {
+      this.catalogManager = catalogManager;
+      return this;
+    }
+
+    @Override
+    public RestExtensionFactory withTableManager(TableManager tableManager) {
+      this.tableManager = tableManager;
+      return this;
+    }
+
+    @Override
+    public RestExtension build() {
+      return new RestCatalogService(catalogManager, tableManager);
+    }
+
+    @Override
+    public void open(Map<String, String> properties) {}
+
+    @Override
+    public void close() {}
+
+    @Override
+    public String name() {
+      return "iceberg-rest-catalog";
+    }
+  }
 }
diff --git a/amoro-ams/src/main/java/org/apache/amoro/server/RestExtension.java 
b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtension.java
new file mode 100644
index 000000000..b397d99ee
--- /dev/null
+++ b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtension.java
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.amoro.server;
+
+import io.javalin.apibuilder.EndpointGroup;
+import io.javalin.http.Context;
+
+public interface RestExtension {
+
+  EndpointGroup endpoints();
+
+  boolean needHandleException(Context ctx);
+
+  void handleException(Exception e, Context ctx);
+}
diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionFactory.java 
b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionFactory.java
new file mode 100644
index 000000000..23cfa6a56
--- /dev/null
+++ b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionFactory.java
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.amoro.server;
+
+import org.apache.amoro.ActivePlugin;
+import org.apache.amoro.config.Configurations;
+import org.apache.amoro.server.catalog.CatalogManager;
+import org.apache.amoro.server.table.TableManager;
+
+public interface RestExtensionFactory extends ActivePlugin {
+  RestExtensionFactory withServiceConfig(Configurations serviceConfig);
+
+  RestExtensionFactory withCatalogManager(CatalogManager catalogManager);
+
+  RestExtensionFactory withTableManager(TableManager tableManager);
+
+  RestExtension build();
+}
diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionManager.java 
b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionManager.java
new file mode 100644
index 000000000..143e61701
--- /dev/null
+++ b/amoro-ams/src/main/java/org/apache/amoro/server/RestExtensionManager.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.amoro.server;
+
+import org.apache.amoro.config.Configurations;
+import org.apache.amoro.server.catalog.CatalogManager;
+import org.apache.amoro.server.manager.AbstractPluginManager;
+import org.apache.amoro.server.table.TableManager;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class RestExtensionManager extends 
AbstractPluginManager<RestExtensionFactory> {
+
+  private static final String REST_EXTENSION_PLUGIN_CATEGORY = 
"rest-extensions";
+
+  public RestExtensionManager() {
+    super(REST_EXTENSION_PLUGIN_CATEGORY);
+  }
+
+  public List<RestExtension> loadExtensions(
+      Configurations serviceConfig, CatalogManager catalogManager, 
TableManager tableManager) {
+    List<RestExtensionFactory> factories = installedPlugins();
+    return factories.stream()
+        .map(
+            factory ->
+                factory
+                    .withServiceConfig(serviceConfig)
+                    .withCatalogManager(catalogManager)
+                    .withTableManager(tableManager)
+                    .build())
+        .collect(Collectors.toList());
+  }
+}
diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/manager/AbstractPluginManager.java
 
b/amoro-ams/src/main/java/org/apache/amoro/server/manager/AbstractPluginManager.java
index e3c70c41f..84d7b6922 100644
--- 
a/amoro-ams/src/main/java/org/apache/amoro/server/manager/AbstractPluginManager.java
+++ 
b/amoro-ams/src/main/java/org/apache/amoro/server/manager/AbstractPluginManager.java
@@ -82,6 +82,8 @@ public abstract class AbstractPluginManager<T extends 
ActivePlugin> implements P
 
   /** Initialize the plugin manager, and install all plugins. */
   public void initialize() {
+    foundAvailablePlugins();
+
     List<PluginConfiguration> pluginConfigs = loadPluginConfigurations();
     pluginConfigs.stream()
         .sorted(Comparator.comparing(PluginConfiguration::getPriority))
@@ -92,7 +94,6 @@ public abstract class AbstractPluginManager<T extends 
ActivePlugin> implements P
                   exists == null, "Duplicate plugin name found: %s", 
config.getName());
             });
 
-    foundAvailablePlugins();
     for (PluginConfiguration pluginConfig : pluginConfigs) {
       if (!pluginConfig.isEnabled()) {
         continue;
@@ -186,6 +187,10 @@ public abstract class AbstractPluginManager<T extends 
ActivePlugin> implements P
         Environments.getConfigPath(), PLUGIN_CONFIG_DIR_NAME, pluginCategory() 
+ ".yaml");
   }
 
+  protected Map<String, T> getFoundedPlugins() {
+    return foundedPlugins;
+  }
+
   /**
    * Visit all installed plugins.
    *
diff --git 
a/amoro-ams/src/main/java/org/apache/amoro/server/manager/PluginConfiguration.java
 
b/amoro-ams/src/main/java/org/apache/amoro/server/manager/PluginConfiguration.java
index 1c35ae9a0..44c5e5a30 100644
--- 
a/amoro-ams/src/main/java/org/apache/amoro/server/manager/PluginConfiguration.java
+++ 
b/amoro-ams/src/main/java/org/apache/amoro/server/manager/PluginConfiguration.java
@@ -25,6 +25,7 @@ import 
org.apache.amoro.shade.jackson2.com.fasterxml.jackson.databind.JsonNode;
 import org.apache.amoro.utils.JacksonUtil;
 
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.Map;
 
 /** Configuration of a plugin. */
@@ -64,6 +65,10 @@ public class PluginConfiguration {
     return new PluginConfiguration(name, enabled, priority, props);
   }
 
+  public static PluginConfiguration emptyConfig(String name) {
+    return new PluginConfiguration(name, true, -1, new HashMap<>());
+  }
+
   /** @return Plugin name. */
   public String getName() {
     return name;
diff --git 
a/amoro-ams/src/main/resources/META-INF/services/org.apache.amoro.server.RestExtensionFactory
 
b/amoro-ams/src/main/resources/META-INF/services/org.apache.amoro.server.RestExtensionFactory
new file mode 100644
index 000000000..a0b5cf404
--- /dev/null
+++ 
b/amoro-ams/src/main/resources/META-INF/services/org.apache.amoro.server.RestExtensionFactory
@@ -0,0 +1,19 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+#
+
+org.apache.amoro.server.RestCatalogService$RestCatalogServiceFactory
diff --git 
a/amoro-ams/src/test/java/org/apache/amoro/server/AmsEnvironment.java 
b/amoro-ams/src/test/java/org/apache/amoro/server/AmsEnvironment.java
index 7ce1cab33..93fd182d3 100644
--- a/amoro-ams/src/test/java/org/apache/amoro/server/AmsEnvironment.java
+++ b/amoro-ams/src/test/java/org/apache/amoro/server/AmsEnvironment.java
@@ -121,6 +121,10 @@ public class AmsEnvironment {
         new File(rootPath + "/conf/plugins/table-runtime-factories.yaml"),
         getTableRuntimeFactoriesConfig(),
         Charset.defaultCharset());
+    FileUtils.writeStringToFile(
+        new File(rootPath + "/conf/plugins/rest-extensions.yaml"),
+        getRestExtensionsConfig(),
+        Charset.defaultCharset());
     System.setProperty(Environments.AMORO_HOME, rootPath);
     System.setProperty("derby.init.sql.dir", path + "../classes/sql/derby/");
     serviceContainer = new AmoroServiceContainer();
@@ -426,4 +430,8 @@ public class AmsEnvironment {
         + "    enabled: true\n"
         + "    priority: 100\n";
   }
+
+  private String getRestExtensionsConfig() {
+    return "rest-extensions:\n" + "  - name: iceberg-rest-catalog\n" + "    
enabled: true\n";
+  }
 }
diff --git a/dist/src/main/amoro-bin/conf/plugins/rest-extensions.yaml 
b/dist/src/main/amoro-bin/conf/plugins/rest-extensions.yaml
new file mode 100644
index 000000000..ff2729d81
--- /dev/null
+++ b/dist/src/main/amoro-bin/conf/plugins/rest-extensions.yaml
@@ -0,0 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+# This file is the config file for plugin rest extension
+# configurations of rest extensions
+rest-extensions:
+  - name: iceberg-rest-catalog
+    enabled: true

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