Coverage Report - ca.uhn.hl7v2.llp.MllpEncoder
 
Classes in this File Line Coverage Branch Coverage Complexity
MllpEncoder
88%
16/18
100%
2/2
1.75
 
 1  
 /*
 2  
  The contents of this file are subject to the Mozilla Public License Version 1.1
 3  
  (the "License"); you may not use this file except in compliance with the License.
 4  
  You may obtain a copy of the License at http://www.mozilla.org/MPL/
 5  
  Software distributed under the License is distributed on an "AS IS" basis,
 6  
  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
 7  
  specific language governing rights and limitations under the License.
 8  
 
 9  
  The Original Code is "MllpEncoder.java".  Description:
 10  
  "Encodes a message string into an MLLP output stream"
 11  
 
 12  
  The Initial Developer of the Original Code is University Health Network. Copyright (C)
 13  
  2013.  All Rights Reserved.
 14  
 
 15  
  Contributor(s): ______________________________________.
 16  
 
 17  
  Alternatively, the contents of this file may be used under the terms of the
 18  
  GNU General Public License (the "GPL"), in which case the provisions of the GPL are
 19  
  applicable instead of those above.  If you wish to allow use of your version of this
 20  
  file only under the terms of the GPL and not to allow others to use your version
 21  
  of this file under the MPL, indicate your decision by deleting  the provisions above
 22  
  and replace  them with the notice and other provisions required by the GPL License.
 23  
  If you do not delete the provisions above, a recipient may use your version of
 24  
  this file under either the MPL or the GPL.
 25  
  */
 26  
 
 27  
 package ca.uhn.hl7v2.llp;
 28  
 
 29  
 import java.io.*;
 30  
 import java.nio.charset.Charset;
 31  
 
 32  
 /**
 33  
  * MllpEncoder encodes a String into an OutputStream
 34  
  *
 35  
  * @author Christian Ohr
 36  
  */
 37  
 class MllpEncoder {
 38  
 
 39  
     protected Charset charset;
 40  
     protected boolean omitBOM;
 41  
 
 42  773
     MllpEncoder(Charset charset, boolean omitBOM) {
 43  773
         this.charset = charset;
 44  773
         this.omitBOM = omitBOM;
 45  773
     }
 46  
 
 47  
     /**
 48  
      * Returns a HL7 message string extracted from the MLLP stream
 49  
      *
 50  
      * @param in MLLP input stream
 51  
      * @return HL7 message string
 52  
      * @throws java.io.IOException
 53  
      * @throws ca.uhn.hl7v2.llp.LLPException
 54  
      */
 55  
     public void putMessage(String message, OutputStream out) throws IOException, LLPException {
 56  
         // Try to enforce sending the message in one frame. Multiple calls to write()
 57  
         // may cause multiple frames being sent.
 58  1446
         byte[] bytes = toByteArray(message);
 59  1446
         byte[] outBytes = new byte[bytes.length + 3];
 60  1446
         outBytes[0] = MllpConstants.START_BYTE;
 61  1446
         System.arraycopy(bytes, 0, outBytes, 1, bytes.length);
 62  1446
         outBytes[outBytes.length - 2] = MllpConstants.END_BYTE1;
 63  1446
         outBytes[outBytes.length - 1] = MllpConstants.END_BYTE2;
 64  
 
 65  1446
         out.write(outBytes);
 66  1441
         out.flush();
 67  1441
     }
 68  
 
 69  
     /**
 70  
      * Converts the extract byte sequence into a String. This method must respect
 71  
      * a Charset, which is either statically configured or may be obtained at runtime.
 72  
      *
 73  
      * @param data HL7 message as byte sequence
 74  
      * @return HL7 message String using correct charset
 75  
      */
 76  
     protected byte[] toByteArray(String message) {
 77  1361
         return asByteArray(message, charset, omitBOM);
 78  
     }
 79  
 
 80  
     protected static byte[] asByteArray(String message, Charset charset, boolean omitBOM) {
 81  
         try {
 82  1446
             byte[] b = message.getBytes(charset.name());
 83  1446
             return omitBOM ? CharSetUtil.withoutBOM(b) : b;
 84  0
         } catch (UnsupportedEncodingException e) {
 85  
             // never happens
 86  0
             return null;
 87  
         }
 88  
     }
 89  
 
 90  
 }