Reads from an {@link InputStream} containing a stream of encoded HL7 messagesand iterates over those messages. This class is geared towards reading from files, and tries to be very lenient about the format of the stream, specifically concerning control characters and line endings. It should be safe to provide a stream containing Windows or Unix line endings (which will be treated as segment delimiters). It is also safe to provide a stream containing MLLP control blocks before and after each message (although these will not be validated! Do not use this class to read MLLP messages from a socket stream!)
The input stream could, for example, be a FileInputStream reading from a text file containing a number of HL7 messages in plain text format.
Usage note: If an IOException occurs while reading from the streamor a message parsing exception occurs, it will be thrown as an unchecked {@link ParseFailureError}