Generate IEEE OUI in JSON format with java.

App.java

package com.ningzeta;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.HashMap;
import java.util.Scanner;

public class App 
{
	private static String OUI_URL = "http://standards-oui.ieee.org/oui/oui.txt";

    public void readOUI() {
		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.enable(SerializationFeature.INDENT_OUTPUT);

		HashMap<String,OUI> ouiMap = new HashMap<>();

		try {
			URL ouiURL = new URL(OUI_URL);
			Scanner scanner = new Scanner(ouiURL.openStream());
			while (scanner.hasNextLine()){
				String line = scanner.nextLine();
				if(line.contains("(hex)")) {
					String[] splits = line.split("\\(hex\\)");
					ouiMap.put(splits[0].trim(),new OUI(splits[1].trim()));
				}
			}
			objectMapper.writeValue(new File("oui.json"),ouiMap);
		}
		catch (IOException ex) {
			ex.printStackTrace();
		}
	}
}

OUI.java

package com.ningzeta;

/**
 * OUI Definition class.
 *
 * @author Ningthoujam Lokhendro
 * @since 5/11/2016
 */
public class OUI {

	String vendor;

	public OUI(String vendor) {
		this.vendor = vendor;
	}

	public String getVendor() {
		return vendor;
	}

	public void setVendor(String vendor) {
		this.vendor = vendor;
	}
}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  
  <groupId>com.ningzeta</groupId>
  <artifactId>oui</artifactId>
  <packaging>jar</packaging>
  <version>1.0.0-SNAPSHOT</version>
  <name>oui</name>
  <url>http://maven.apache.org</url>

  <properties>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <java.version>1.7</java.version>
  </properties>
  
  <dependencies>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.6.4</version>
    </dependency>

  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
          <source>${java.version}</source>
          <target>${java.version}</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>