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.ByteArrayInputStream;
  import java.io.InputStream;
  import java.nio.charset.Charset;
  
  import ca.uhn.hl7v2.model.Message;
  import ca.uhn.hl7v2.model.v24.message.ADR_A19;
  import ca.uhn.hl7v2.model.v24.segment.MSA;
  import ca.uhn.hl7v2.model.v24.segment.MSH;
  import ca.uhn.hl7v2.model.v24.segment.QRD;
  import org.apache.camel.Exchange;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * Unit test for HL7 DataFormat.
   */
  public class HL7DataFormatTest extends CamelTestSupport {
      private static final String NONE_ISO_8859_1 = "\u221a\u00c4\u221a\u00e0\u221a\u00e5\u221a\u00ed\u221a\u00f4\u2248\u00ea";
  
      private HL7DataFormat hl7 = new HL7DataFormat();
      private HL7DataFormat hl7big5 = new HL7DataFormat() {
          @Override
          protected String guessCharsetName(byte[] b, Exchange exchange) {
              return "Big5";
          }
      };
  
      @Test
      public void testMarshal() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:marshal");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(InputStream.class);
          mock.message(0).body(String.class).contains("MSA|AA|123");
          mock.message(0).body(String.class).contains("QRD|20080805120000");
  
          Message message = createHL7AsMessage();
          template.sendBody("direct:marshal", message);
  
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @Test
      public void testMarshalISO8859() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:marshal");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(InputStream.class);
          mock.message(0).body(String.class).contains("MSA|AA|123");
          mock.message(0).body(String.class).contains("QRD|20080805120000");
          mock.message(0).body(String.class).not().contains(NONE_ISO_8859_1);
          Message message = createHL7AsMessage();
          template.sendBodyAndProperty("direct:marshal", message, Exchange.CHARSET_NAME, "ISO-8859-1");
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @Test
      public void testMarshalUTF16InMessage() throws Exception {
          String charsetName = "UTF-16";
          MockEndpoint mock = getMockEndpoint("mock:marshal");
          mock.expectedMessageCount(1);
  
          Message message = createHL7WithCharsetAsMessage(HL7Charset.getHL7Charset(charsetName));
          template.sendBodyAndProperty("direct:marshal", message, Exchange.CHARSET_NAME, charsetName);
          MockEndpoint.assertIsSatisfied(context);
  
          byte[] body = mock.getExchanges().get(0).getIn().getBody(byte[].class);
          String msg = new String(body, Charset.forName(charsetName));
          assertTrue(msg.contains("MSA|AA|123"));
          assertTrue(msg.contains("QRD|20080805120000"));
      }
  
      @Test
      public void testMarshalUTF8() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:marshal");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(InputStream.class);
          mock.message(0).body(String.class).contains("MSA|AA|123");
          mock.message(0).body(String.class).contains("QRD|20080805120000");
          mock.message(0).body(String.class).contains(NONE_ISO_8859_1);
          Message message = createHL7AsMessage();
          template.sendBodyAndProperty("direct:marshal", message, Exchange.CHARSET_NAME, "UTF-8");
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @Test
      public void testUnmarshal() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:unmarshal");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(Message.class);
  
          mock.expectedHeaderReceived(HL7Constants.HL7_SENDING_APPLICATION, "MYSENDER");
          mock.expectedHeaderReceived(HL7Constants.HL7_SENDING_FACILITY, "MYSENDERAPP");
          mock.expectedHeaderReceived(HL7Constants.HL7_RECEIVING_APPLICATION, "MYCLIENT");
          mock.expectedHeaderReceived(HL7Constants.HL7_RECEIVING_FACILITY, "MYCLIENTAPP");
          mock.expectedHeaderReceived(HL7Constants.HL7_TIMESTAMP, "200612211200");
          mock.expectedHeaderReceived(HL7Constants.HL7_SECURITY, null);
          mock.expectedHeaderReceived(HL7Constants.HL7_MESSAGE_TYPE, "QRY");
          mock.expectedHeaderReceived(HL7Constants.HL7_TRIGGER_EVENT, "A19");
          mock.expectedHeaderReceived(HL7Constants.HL7_MESSAGE_CONTROL, "1234");
          mock.expectedHeaderReceived(HL7Constants.HL7_PROCESSING_ID, "P");
          mock.expectedHeaderReceived(HL7Constants.HL7_VERSION_ID, "2.4");
          mock.expectedHeaderReceived(HL7Constants.HL7_CONTEXT, hl7.getHapiContext());
          mock.expectedHeaderReceived(HL7Constants.HL7_CHARSET, null);
  
          mock.expectedHeaderReceived(Exchange.CHARSET_NAME, "UTF-8");
  
          String body = createHL7AsString();
          template.sendBody("direct:unmarshal", body);
  
          MockEndpoint.assertIsSatisfied(context);
  
          Message msg = mock.getExchanges().get(0).getIn().getBody(Message.class);
          assertEquals("2.4", msg.getVersion());
          QRD qrd = (QRD) msg.get("QRD");
          assertEquals("0101701234", qrd.getWhoSubjectFilter(0).getIDNumber().getValue());
      }
  
      @Test
      public void testUnmarshalWithExplicitUTF16Charset() throws Exception {
          String charset = "UTF-16";
          MockEndpoint mock = getMockEndpoint("mock:unmarshal");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(Message.class);
          mock.expectedHeaderReceived(HL7Constants.HL7_CHARSET, HL7Charset.getHL7Charset(charset).getHL7CharsetName());
          mock.expectedHeaderReceived(Exchange.CHARSET_NAME, charset);
  
          // Message with explicit encoding in MSH-18
          byte[] body = createHL7WithCharsetAsString(HL7Charset.UTF_16).getBytes(Charset.forName(charset));
          template.sendBodyAndHeader("direct:unmarshal", new ByteArrayInputStream(body), Exchange.CHARSET_NAME, charset);
  
          MockEndpoint.assertIsSatisfied(context);
  
          Message msg = mock.getExchanges().get(0).getIn().getBody(Message.class);
          assertEquals("2.4", msg.getVersion());
          QRD qrd = (QRD) msg.get("QRD");
          assertEquals("0101701234", qrd.getWhoSubjectFilter(0).getIDNumber().getValue());
      }
  
      @Test
      public void testUnmarshalWithImplicitBig5Charset() throws Exception {
          String charset = "Big5";
          MockEndpoint mock = getMockEndpoint("mock:unmarshalBig5");
          mock.expectedMessageCount(1);
          mock.message(0).body().isInstanceOf(Message.class);
          mock.expectedHeaderReceived(HL7Constants.HL7_CHARSET, null);
          mock.expectedHeaderReceived(Exchange.CHARSET_NAME, charset);
  
          // Message without explicit encoding in MSH-18, but the unmarshaller "guesses"
          // this time that it is Big5
          byte[] body = createHL7AsString().getBytes(Charset.forName(charset));
          template.sendBody("direct:unmarshalBig5", new ByteArrayInputStream(body));
  
          MockEndpoint.assertIsSatisfied(context);
  
          Message msg = mock.getExchanges().get(0).getIn().getBody(Message.class);
          assertEquals("2.4", msg.getVersion());
          QRD qrd = (QRD) msg.get("QRD");
          assertEquals("0101701234", qrd.getWhoSubjectFilter(0).getIDNumber().getValue());
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
  
          return new RouteBuilder() {
              public void configure() {
  
                  from("direct:marshal").marshal().hl7().to("mock:marshal");
                  from("direct:unmarshal").unmarshal(hl7).to("mock:unmarshal");
                  from("direct:unmarshalBig5").unmarshal(hl7big5).to("mock:unmarshalBig5");
              }
          };
      }
  
      private static String createHL7AsString() {
          return createHL7WithCharsetAsString(null);
      }
  
      private static String createHL7WithCharsetAsString(HL7Charset charset) {
          String hl7Charset = charset == null ? "" : charset.getHL7CharsetName();
          String line1 = String.format(
                  "MSH|^~\\&|MYSENDER|MYSENDERAPP|MYCLIENT|MYCLIENTAPP|200612211200||QRY^A19|1234|P|2.4||||||%s", hl7Charset);
          String line2 = "QRD|200612211200|R|I|GetPatient|||1^RD|0101701234|DEM||";
  
          StringBuilder body = new StringBuilder();
          body.append(line1);
          body.append("\r");
          body.append(line2);
          return body.toString();
      }
  
      private static ADR_A19 createHL7AsMessage() throws Exception {
          ADR_A19 adr = new ADR_A19();
  
          // Populate the MSH Segment
          MSH mshSegment = adr.getMSH();
          mshSegment.getFieldSeparator().setValue("|");
          mshSegment.getEncodingCharacters().setValue("^~\\&");
          mshSegment.getDateTimeOfMessage().getTimeOfAnEvent().setValue("200701011539");
          mshSegment.getSendingApplication().getNamespaceID().setValue("MYSENDER");
          mshSegment.getSequenceNumber().setValue("123");
          mshSegment.getMessageType().getMessageType().setValue("ADR");
          mshSegment.getMessageType().getTriggerEvent().setValue("A19");
  
          // Populate the PID Segment
          MSA msa = adr.getMSA();
          msa.getAcknowledgementCode().setValue("AA");
          msa.getMessageControlID().setValue("123");
          msa.getMsa3_TextMessage().setValue(NONE_ISO_8859_1);
  
          QRD qrd = adr.getQRD();
          qrd.getQueryDateTime().getTimeOfAnEvent().setValue("20080805120000");
  
          return adr;
      }
  
      private static ADR_A19 createHL7WithCharsetAsMessage(HL7Charset charset) throws Exception {
          ADR_A19 adr = createHL7AsMessage();
          adr.getMSH().getCharacterSet(0).setValue(charset.getHL7CharsetName());
          return adr;
      }
  
  }
  