Check Digit ISO 6346

This repo in an implementation of the ISO 6346.

What is ISO 6346 (wikipedia definition)

ISO 6346 is an international standard covering the coding, identification and marking of intermodal (shipping) containers used within containerized intermodal freight transport.The standard establishes a visual identification system for every container that includes a unique serial number (with check digit), the owner, a country code, a size, type and equipment category as well as any operational marks. The standard is managed by the International Container Bureau (BIC).

Step	Container number	Total
	C S Q U 3 0 5 4 3 8
1	13 30 28 32 3 0 5 4 3 8
	x x x x x x x x x x
2	1 2 4 8 16 32 64 128 256 512
	= = = = = = = = = =
	13 60 112 256 48 0 320 512 768 4096
3	Sum all results from (2)	6185
4	Divide (3) by 11 (remainder discarded)	562
5	Multiply (4) by 11	6182
6	(3) minus (5) = Check Digit:	3

Step 1

An equivalent numerical value is assigned to each letter of the alphabet, beginning with 10 for the letter A (11 and multiples thereof are omitted):

0	1	2	3	4	5	6	7	8	9
0	1	2	3	4	5	6	7	8	9

A	B	C	D	E	F	G	H	I	J	K	L	M
10	12	13	14	15	16	17	18	19	20	21	23	24

N	O	P	Q	R	S	T	U	V	W	X	Y	Z
25	26	27	28	29	30	31	32	34	35	36	37	38

Step 2

Each of the numbers calculated in step 1 is multiplied by 2position, where position is the exponent to base 2. Position starts at 0, from left to right.

Step 3

Sum up all results of Step above

Step 4

Round the result down towards zero i.e. make the result a whole number (integer)

Step 5

Divide them by 11

Step 6

Multiply the integer value by 11

Step 7

Subtract result of Step 3 from result of (6): This is the check digit.

💻 Deploy instructions

Use the maven plug-in (wildfly-maven-plugin) for tomcat server in order to automatically deploy this project in your local server. You can find this plug-in in pom.xml file in order to modify with yours configurations, also don't forget to add in settings.xml your credentials for wildfly server.

<servers>
    <server>
        <id>server</id>
        <username>admin</username>
        <password>password</password>
    </server>
</servers>

You can run the below command in order to deploy the artifact in your local tomcat server

mvn clean wildfly:deploy -PnoTests

After the deployment navigate to the following link

API: http://localhost:8080/iso/api/rest
FrontEnd: http://localhost:8080/iso/

Maven Profiles In order to skip tests use this profile

-PnoTests

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