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.camel.quarkus.component.saga.it;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import io.quarkus.runtime.annotations.RegisterForReflection;
  import jakarta.enterprise.context.ApplicationScoped;
  import org.apache.camel.Header;
  
  @ApplicationScoped
  @RegisterForReflection
  public class CreditService {
  
      private int totalCredit;
  
      private Map<String, Integer> reservations = new HashMap<>();
  
      public CreditService() {
          this.totalCredit = 100;
      }
  
      public synchronized void reserveCredit(String id, @Header("amount") int amount) {
          int credit = getCredit();
          if (amount > credit) {
              throw new IllegalStateException("Insufficient credit");
          }
          reservations.put(id, amount);
      }
  
      public synchronized void refundCredit(String id) {
          reservations.remove(id);
      }
  
      public synchronized int getCredit() {
          return totalCredit - reservations.values().stream().reduce(0, (a, b) -> a + b);
      }
  }
  