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.component.quickfixj.examples.transform;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.component.quickfixj.QuickfixjEndpoint;
  import quickfix.DataDictionary;
  import quickfix.Message;
  import quickfix.Session;
  import quickfix.SessionID;
  
  public class QuickfixjEventJsonTransformer {
      private final QuickfixjMessageJsonTransformer renderer;
  
      public QuickfixjEventJsonTransformer() {
          renderer = new QuickfixjMessageJsonTransformer();
      }
  
      public String transform(Exchange exchange) {
          SessionID sessionID = exchange.getIn().getHeader(QuickfixjEndpoint.SESSION_ID_KEY, SessionID.class);
          Session session = Session.lookupSession(sessionID);
          DataDictionary dataDictionary = session.getDataDictionary();
  
          if (dataDictionary == null) {
              throw new IllegalStateException("No Data Dictionary. Exchange must reference an existing session");
          }
  
          StringBuilder sb = new StringBuilder();
          sb.append("\"event\": {\n");
  
          org.apache.camel.Message in = exchange.getIn();
          for (String key : in.getHeaders().keySet()) {
              sb.append("  \"").append(key).append("\": ").append(in.getHeader(key)).append(",\n");
          }
  
          sb.append(renderer.transform(in.getBody(Message.class), "  ", dataDictionary)).append("\n");
          sb.append("}\n");
          return sb.toString();
      }
  }
  