/*
    * Copyright 2018 the original author or authors.
    *
    *  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
    *
    *         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.openehealth.ipf.platform.camel.ihe.atna.util;
  
  import org.apache.camel.impl.DefaultComponent;
  import org.openehealth.ipf.commons.audit.AuditContext;
  import org.openehealth.ipf.commons.audit.AuditException;
  import org.openehealth.ipf.commons.core.config.ContextFacade;
  
  import java.util.Collection;
  import java.util.Map;
  
  /**
   * @author Christian Ohr
   */
  public abstract class AuditConfiguration {
  
      public static AuditContext obtainAuditContext(DefaultComponent component, Map<String, Object> parameters) {
          Boolean audit = component.getAndRemoveParameter(parameters, "audit", Boolean.class, true);
          AuditContext auditContext = component.resolveAndRemoveReferenceParameter(parameters, "auditContext", AuditContext.class);
          if (auditContext == null) {
              if (audit != null && !audit) {
                  auditContext = AuditContext.noAudit();
              } else {
                  Collection<AuditContext> beans = ContextFacade.getBeans(AuditContext.class);
                  if (beans.size() == 1) {
                      auditContext = beans.iterator().next();
                  } else {
                      throw new AuditException("Must have exactly one bean of type " + AuditContext.class.getName() + ", but was : " + beans.size());
                  }
              }
          }
          return auditContext;
      }
  
  }