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.jms.tests.tools;
  
  import java.lang.invoke.MethodHandles;
  import java.util.ArrayList;
  import java.util.Hashtable;
  import java.util.List;
  
  import org.apache.activemq.artemis.jms.tests.tools.container.InVMInitialContextFactory;
  import org.apache.activemq.artemis.jms.tests.tools.container.LocalTestServer;
  import org.apache.activemq.artemis.jms.tests.tools.container.Server;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Collection of static methods to use to start/stop and interact with the in-memory JMS server. It is also use to
   * start/stop a remote server.
   */
  public class ServerManagement {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
  
     // logging levels used by the remote client to forward log output on a remote server
     public static int FATAL = 0;
  
     public static int ERROR = 1;
  
     public static int WARN = 2;
  
     public static int INFO = 3;
  
     public static int DEBUG = 4;
  
     public static int TRACE = 5;
  
     public static final String DEFAULT_QUEUE_CONTEXT = "/queue";
  
     public static final String DEFAULT_TOPIC_CONTEXT = "/topic";
  
  
     private static List<Server> servers = new ArrayList<>();
  
     /**
      * Makes sure that a "hollow" TestServer (either local or remote, depending on the nature of the test), exists and
      * it's ready to be started.
      */
     public static synchronized Server create() throws Exception {
        return new LocalTestServer();
     }
  
     public static void start(final int i, final String config, final boolean clearDatabase) throws Exception {
        ServerManagement.start(i, config, clearDatabase, true);
     }
  
     /**
      * When this method correctly completes, the server (local or remote) is started and fully operational (the server
      * container and the server peer are created and started).
      */
     public static void start(final int i,
                              final String config,
                              final boolean clearDatabase,
                              final boolean startActiveMQServer) throws Exception {
        throw new IllegalStateException("Method to start a server is not implemented");
     }
  
     public static synchronized void kill(final int i) throws Exception {
        if (i == 0) {
           // Cannot kill server 0 if there are any other servers since it has the rmi registry in it
           for (int j = 1; j < ServerManagement.servers.size(); j++) {
              if (ServerManagement.servers.get(j) != null) {
                 throw new IllegalStateException("Cannot kill server 0, since server[" + j + "] still exists");
              }
           }
        }
  
        if (i > ServerManagement.servers.size()) {
           logger.error("server {} has not been created or has already been killed, so it cannot be killed", i);
        } else {
           Server server = ServerManagement.servers.get(i);
           logger.debug("invoking kill() on server {}", i);
           try {
              server.kill();
           } catch (Throwable t) {
              // This is likely to throw an exception since the server dies before the response is received
           }
  
           logger.debug("Waiting for server to die");
  
           try {
              while (true) {
                 server.ping();
                 logger.debug("server {} still alive ...", i);
                 Thread.sleep(100);
              }
           } catch (Throwable e) {
              // Ok
           }
  
           Thread.sleep(300);
  
           logger.debug("server {} killed and dead", i);
        }
  
     }
  
     public static Hashtable<String, String> getJNDIEnvironment(final int serverIndex) {
        return InVMInitialContextFactory.getJNDIEnvironment(serverIndex);
     }
  }
  