content: /*
   * 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.activemq.artemis.tests.integration.management;
  
  import org.apache.activemq.artemis.api.config.ActiveMQDefaultConfiguration;
  import org.apache.activemq.artemis.api.core.ActiveMQException;
  import org.apache.activemq.artemis.api.core.client.ClientMessage;
  import org.apache.activemq.artemis.api.core.client.ClientRequestor;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
  import org.apache.activemq.artemis.api.core.client.ServerLocator;
  import org.apache.activemq.artemis.api.core.management.ManagementHelper;
  
  public class CoreMessagingProxy {
  
  
     private final String resourceName;
  
     private final ServerLocator locator;
  
  
     public CoreMessagingProxy(final ServerLocator locator, final String resourceName) throws Exception {
        this.locator = locator;
  
        this.resourceName = resourceName;
     }
  
  
  
  
     public Object retrieveAttributeValue(final String attributeName) {
        return retrieveAttributeValue(attributeName, null);
     }
  
     public Object retrieveAttributeValue(final String attributeName, final Class desiredType) {
        try (ClientSessionFactory sessionFactory = locator.createSessionFactory();
             ClientSession session = getSession(sessionFactory);
             ClientRequestor requestor = getClientRequestor(session)) {
           ClientMessage m = session.createMessage(false);
           ManagementHelper.putAttribute(m, resourceName, attributeName);
           ClientMessage reply;
           reply = requestor.request(m);
           Object result = ManagementHelper.getResult(reply, desiredType);
  
           return result;
        } catch (Exception e) {
           throw new IllegalStateException(e);
        }
     }
  
     public Object invokeOperation(final String operationName, final Object... args) throws Exception {
        return invokeOperation(null, operationName, args);
     }
  
     public Object invokeOperation(final Class desiredType,
                                   final String operationName,
                                   final Object... args) throws Exception {
        try (ClientSessionFactory sessionFactory = locator.createSessionFactory();
             ClientSession session = getSession(sessionFactory);
             ClientRequestor requestor = getClientRequestor(session)) {
           ClientMessage m = session.createMessage(false);
           ManagementHelper.putOperationInvocation(m, resourceName, operationName, args);
           ClientMessage reply = requestor.request(m);
           if (reply != null) {
              if (ManagementHelper.hasOperationSucceeded(reply)) {
                 return ManagementHelper.getResult(reply, desiredType);
              } else {
                 throw new Exception((String) ManagementHelper.getResult(reply));
              }
           } else {
              return null;
           }
        }
     }
  
  
     private ClientSession getSession(ClientSessionFactory sessionFactory) throws ActiveMQException {
        ClientSession session = sessionFactory.createSession(false, true, true);
        session.start();
        return session;
     }
  
     private ClientRequestor getClientRequestor(ClientSession session) throws Exception {
        return new ClientRequestor(session, ActiveMQDefaultConfiguration.getDefaultManagementAddress());
     }
  
  
  }
  