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.hl7;
  
  import java.io.IOException;
  
  import ca.uhn.hl7v2.DefaultHapiContext;
  import ca.uhn.hl7v2.HL7Exception;
  import ca.uhn.hl7v2.HapiContext;
  import ca.uhn.hl7v2.model.Message;
  import ca.uhn.hl7v2.parser.DefaultModelClassFactory;
  import ca.uhn.hl7v2.parser.ParserConfiguration;
  import ca.uhn.hl7v2.parser.UnexpectedSegmentBehaviourEnum;
  import ca.uhn.hl7v2.validation.impl.ValidationContextFactory;
  import org.apache.camel.Converter;
  import org.apache.camel.Exchange;
  import org.apache.camel.converter.IOConverter;
  
  /**
   * HL7 converters.
   */
  @Converter(generateLoader = true)
  public final class HL7Converter {
  
      private static final HapiContext DEFAULT_CONTEXT;
  
      static {
          ParserConfiguration parserConfiguration = new ParserConfiguration();
          parserConfiguration.setDefaultObx2Type("ST");
          parserConfiguration.setInvalidObx2Type("ST");
          parserConfiguration.setUnexpectedSegmentBehaviour(UnexpectedSegmentBehaviourEnum.ADD_INLINE);
  
          DEFAULT_CONTEXT = new DefaultHapiContext(
                  parserConfiguration, ValidationContextFactory.noValidation(), new DefaultModelClassFactory());
      }
  
      private HL7Converter() {
          // Helper class
      }
  
      @Converter
      public static String toString(Message message) throws HL7Exception {
          return message.encode();
      }
  
      @Converter
      public static byte[] toByteArray(Message message, Exchange exchange) throws HL7Exception, IOException {
          return IOConverter.toByteArray(message.encode(), exchange);
      }
  
      @Converter
      public static Message toMessage(String body) throws HL7Exception {
          return DEFAULT_CONTEXT.getGenericParser().parse(body);
      }
  
      @Converter
      public static Message toMessage(byte[] body, Exchange exchange) throws HL7Exception, IOException {
          return DEFAULT_CONTEXT.getGenericParser().parse(IOConverter.toString(body, exchange));
      }
  
  }
  