From 5ef4ad89630e4c51dcd7093e78d71eeda0be727d Mon Sep 17 00:00:00 2001
From: CGantert345 <57003061+CGantert345@users.noreply.github.com>
Date: Fri, 3 Jan 2020 10:42:49 +0100
Subject: api spec

---
 src/org/uic/ticket/api/UicRailTicketCoder.java | 171 +++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 src/org/uic/ticket/api/UicRailTicketCoder.java

(limited to 'src/org/uic/ticket/api/UicRailTicketCoder.java')

diff --git a/src/org/uic/ticket/api/UicRailTicketCoder.java b/src/org/uic/ticket/api/UicRailTicketCoder.java
new file mode 100644
index 0000000..0221526
--- /dev/null
+++ b/src/org/uic/ticket/api/UicRailTicketCoder.java
@@ -0,0 +1,171 @@
+/*
+ * 
+ */
+package org.uic.ticket.api;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.uic.ticket.api.asn.omv1.UicRailTicketData;
+import org.uic.ticket.api.spec.IUicRailTicket;
+import org.uic.ticket.api.utils.Api2OpenAsnEncoder;
+import org.uic.ticket.api.utils.OpenAsn2ApiDecoder;
+
+
+/**
+ * The Class UicRailTicketCoder.
+ */
+public class UicRailTicketCoder {
+
+
+	/**
+	 * encode an UicRailTicket to asn.1 format using PER unaligned encoding 
+	 *
+	 * @param outputStream the output stream for the encoded data
+	 * @param uicRailTicket the uic rail ticket to be encoded
+	 * @param version version of the asn1 specification
+	 * @throws IOException signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException signals that a format rule of the asn.1 specification was violated. 
+	 */
+	public byte[] encodeTag(IUicRailTicket uicRailTicket, int version) throws IOException, EncodingFormatException {
+		
+				
+	    byte[] content = encode(uicRailTicket, version);
+			
+		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+		
+		String idTag = "U_FLEX"; 
+		String versionId = "01";
+		int length = 8;
+			
+		//size of data
+		length = length + content.length;
+		
+		//size of length element
+		length = length + 4;  		
+		String lengthElement = String.format("%04d",length);		
+		
+		outputStream.write(idTag.getBytes());
+		outputStream.write(versionId.getBytes());
+		outputStream.write(lengthElement.getBytes());	
+			
+		outputStream.write(content);					
+					
+		return outputStream.toByteArray();
+	
+}
+	
+
+
+	
+	/**
+	 * encode an UicRailTicket to asn.1 format using PER unaligned encoding 
+	 *
+	 * @param outputStream the output stream for the encoded data
+	 * @param uicRailTicket the uic rail ticket to be encoded
+	 * @param version of the asn1 specification
+	 * @throws IOException signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException signals that a format rule of the asn.1 specification was violated. 
+	 */
+	public byte[] encode (IUicRailTicket uicRailTicket, int version) throws IOException, EncodingFormatException{
+			
+		if (version != 1) {
+			throw new EncodingFormatException(String.format("Encoding version %d not supported", version));
+		}
+		
+		Api2OpenAsnEncoder uicEncoder = new Api2OpenAsnEncoder(); 		
+		
+		UicRailTicketData asnUicRailTicketData = uicEncoder.populateToAsn1Model(uicRailTicket);
+		
+		return asnUicRailTicketData.encode();
+
+	}	
+	
+
+	/**
+	 * encode an UicRailTicket to asn.1 format using PER unaligned encoding 
+	 *
+	 * @param outputStream the output stream for the encoded data
+	 * @param uicRailTicket the uic rail ticket to be encoded
+	 * @param version of the asn1 specification
+	 * @throws IOException signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException signals that a format rule of the asn.1 specification was violated. 
+	 */
+	public void encode ( ByteArrayOutputStream outputStream, IUicRailTicket uicRailTicket, int version) throws IOException, EncodingFormatException{
+			
+		if (version != 1) {
+			throw new EncodingFormatException(String.format("Encoding version %d not supported", version));
+		}
+		
+		Api2OpenAsnEncoder uicEncoder = new Api2OpenAsnEncoder(); 		
+		
+		UicRailTicketData asnUicRailTicketData = uicEncoder.populateToAsn1Model(uicRailTicket);
+		
+		outputStream.write(asnUicRailTicketData.encode());
+		
+		return;
+
+	}	
+	
+	/**
+	 * Decode a rail ticket from asn.1 unaligned PER encoded data. 
+	 *
+	 * @param byteData the asn.1 PER encoded byte data 
+	 * @return the decoded uic rail ticket
+	 * @throws IOException signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException 
+	 */
+	public IUicRailTicket decodeFromAsn (byte[] byteData, int version) throws IOException, EncodingFormatException{
+		
+		if (version != 1) {
+			throw new EncodingFormatException(String.format("Encoding version %d not supported", version));
+		}
+		
+		UicRailTicketData asnUicRailTicketData = UicRailTicketData.decode(byteData);
+			
+		OpenAsn2ApiDecoder uicDecoder = new OpenAsn2ApiDecoder();
+			
+		IUicRailTicket uicRailTicket = uicDecoder.decodeFromAsn(asnUicRailTicketData);
+		
+		return uicRailTicket;				
+
+	}	
+	
+	
+	/**
+	 * Decode a rail ticket from asn.1 unaligned PER encoded data. 
+	 * @param version of the asn1 specification
+	 * @param input stream of the asn.1 PER encoded data 
+	 * @return the decoded uic rail ticket
+	 * @throws IOException signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException 
+	 */
+	public IUicRailTicket decodeFromAsn (InputStream input, int version) throws IOException, EncodingFormatException{
+		
+		if (version != 1) {
+			throw new EncodingFormatException(String.format("Encoding version %d not supported", version));
+		}
+			
+		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+
+		int nRead;
+		byte[] data = new byte[16384];
+
+		while ((nRead = input.read(data, 0, data.length)) != -1) {
+		  buffer.write(data, 0, nRead);
+		}
+
+		buffer.flush();
+
+		byte[] byteData = buffer.toByteArray();
+		
+		return decodeFromAsn (byteData, version);
+			
+
+	}		
+
+	
+
+
+}
-- 
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