From e023e674020f1a435f7b8c8b9276704f576ea6e5 Mon Sep 17 00:00:00 2001
From: CGantert345 <57003061+CGantert345@users.noreply.github.com>
Date: Mon, 29 Mar 2021 14:08:45 +0200
Subject: structure change 1

---
 .../org/uic/barcode/staticFrame/DataRecord.java    | 199 +++++++++++++++++++++
 1 file changed, 199 insertions(+)
 create mode 100644 src/main/java/org/uic/barcode/staticFrame/DataRecord.java

(limited to 'src/main/java/org/uic/barcode/staticFrame/DataRecord.java')

diff --git a/src/main/java/org/uic/barcode/staticFrame/DataRecord.java b/src/main/java/org/uic/barcode/staticFrame/DataRecord.java
new file mode 100644
index 0000000..16d3811
--- /dev/null
+++ b/src/main/java/org/uic/barcode/staticFrame/DataRecord.java
@@ -0,0 +1,199 @@
+package org.uic.barcode.staticFrame;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import org.uic.barcode.ticket.EncodingFormatException;
+
+/**
+ * The Class DataRecord implements the basic decoding and encoding 
+ * of the data record structure, the split into tag, version, length and content.
+ * 
+ * Implementing classes must provide decoding and encoding of the content
+ * 
+ */
+public abstract class DataRecord {
+	
+	/** The id tag. */
+	protected String idTag; 
+	
+	/** The version id. */
+	protected String versionId;
+	
+	/** The content. */
+	protected byte[] content;
+
+	/**
+	 * Instantiates a new data record.
+	 *
+	 * @param idTag the id tag
+	 * @param version the version
+	 */
+	public DataRecord (String idTag, String version) {
+		this.idTag = idTag;
+		this.versionId = version;
+	}
+	
+	/**
+	 * Instantiates a new data record.
+	 *
+	 * @param idTag the id tag
+	 */
+	public DataRecord (String idTag) {
+		this.idTag = idTag;
+	}
+	
+	/**
+	 * Encode.
+	 *
+	 * @return the byte[]
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	public byte[] encode() throws IOException, EncodingFormatException {
+			
+		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+		
+		encodeContent();
+		
+		//size of tag + version + length
+		int length = 12;
+			
+		//size of data
+		length = length + content.length;
+			
+		String lengthElement = String.format("%04d",length);		
+		
+		while (idTag.length() < 6) {
+			idTag = idTag + " ";
+		}
+		
+		while (versionId.length() < 2) {
+			versionId = "0" + versionId;
+		}
+
+		outputStream.write(idTag.getBytes());
+		
+		outputStream.write(versionId.getBytes());
+		
+		outputStream.write(lengthElement.getBytes());	
+		
+		outputStream.write(content);				
+									
+		return outputStream.toByteArray();
+	}
+	
+	/**
+	 * Decode.
+	 *
+	 * @param byteData the byte data
+	 * @return the int
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	public int decode(byte[] byteData) throws IOException, EncodingFormatException {
+		
+	    int offset = 0;
+		String tag = new String(Arrays.copyOfRange(byteData, offset,  offset + 6));
+		this.setIdTag(tag);
+		offset = offset + 6;
+		
+		String version =  new String(Arrays.copyOfRange(byteData, offset,  offset + 2));
+		this.setVersionId(version);
+		offset = offset + 2;				
+		
+		String dataSize =  new String(Arrays.copyOfRange(byteData, offset,  offset + 4));
+		offset = offset + 4;			
+		
+		int length = Integer.parseInt(dataSize) - 12;
+		this.setData(Arrays.copyOfRange(byteData, offset,  offset + length));
+		
+		decodeContent();
+		
+		return length + 12;
+	}
+
+
+	/**
+	 * Gets the id tag.
+	 *
+	 * @return the id tag
+	 */
+	public String getIdTag() {
+		return idTag;
+	}
+
+
+	/**
+	 * Sets the id tag.
+	 *
+	 * @param idTag the new id tag
+	 */
+	public void setIdTag(String idTag) {
+		this.idTag = idTag;
+	}
+
+
+	/**
+	 * Gets the version id.
+	 *
+	 * @return the version id
+	 */
+	public String getVersionId() {
+		return versionId;
+	}
+
+
+	/**
+	 * Sets the version id.
+	 *
+	 * @param versionId the new version id
+	 */
+	public void setVersionId(String versionId) {
+		this.versionId = versionId;
+	}
+
+
+	/**
+	 * Gets the data.
+	 *
+	 * @return the data
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	protected byte[] getData() throws IOException, EncodingFormatException {
+		return content;
+	}
+
+
+	/**
+	 * Sets the data.
+	 *
+	 * @param data the new data
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	protected void setData(byte[] data) throws IOException, EncodingFormatException  {
+		this.content = data;
+	}
+
+
+	
+	/**
+	 * Decode content.
+	 *
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	protected abstract void decodeContent() throws IOException, EncodingFormatException;
+	
+	/**
+	 * Encode content.
+	 *
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 * @throws EncodingFormatException the encoding format exception
+	 */
+	protected abstract void encodeContent() throws IOException, EncodingFormatException;
+	
+}
-- 
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