content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * 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
   *
   * https://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 io.aeron.samples.echo;
  
  /**
   * Message to provision a new echo pair.
   */
  public class ProvisioningMessage
  {
      private final Object mutex = new Object();
      private Object result = null;
  
      /**
       * Wait for provision message to be processed.
       *
       * @throws InterruptedException if the thread is interrupted while waiting for the response.
       */
      public void await() throws InterruptedException
      {
          synchronized (mutex)
          {
              while (null == result)
              {
                  mutex.wait();
              }
          }
  
          if (result instanceof Exception)
          {
              throw new RuntimeException((Exception)result);
          }
      }
  
      /**
       * Provide a response for the provisioning request.
       *
       * @param value to be returned to the caller.
       */
      public void complete(final Object value)
      {
          synchronized (mutex)
          {
              result = value;
              mutex.notifyAll();
          }
      }
  }
  