package creator;

import java.util.Arrays;
import java.util.HashMap;

public enum SKilLType {
	Bool("skill.lang.bool"),
	Integer8("skill.lang.i8"),
	Integer16("skill.lang.i16"),
	Integer32("skill.lang.i32"),
	Integer64("skill.lang.i64"),
	VariableInt64("skill.lang.v64"),
	Float32("skill.lang.f32"),
	Float64("skill.lang.f64"),
	Array("skill.lang.array"),
	List("skill.lang.list"),
	Set("skill.lang.set"),
	Map("skill.lang.map"),
	String("skill.lang.string"),
	Annotation("skill.lang.annotation");

	private String skillType;
	private static HashMap<String, String> typeMapping;
	static {
		typeMapping.put("skill.lang.bool", "boolean");
		typeMapping.put("skill.lang.i8", "byte");
		typeMapping.put("skill.lang.i16", "short");
		typeMapping.put("skill.lang.i32", "int");
		typeMapping.put("skill.lang.i64", "long");
		typeMapping.put("skill.lang.v64", "java.math.BigInteger");
		typeMapping.put("skill.lang.f32", "float");
		typeMapping.put("skill.lang.f64", "double");
		typeMapping.put("skill.lang.array", "java.util.ArrayList");
		typeMapping.put("skill.lang.list", "java.util.LinkedList");
		typeMapping.put("skill.lang.set", "java.util.HashSet");
		typeMapping.put("skill.lang.map", "java.util.HashMap");
		typeMapping.put("skill.lang.string", "java.lang.String");
		typeMapping.put("skill.lang.annotation", "java.lang.Object");
	}

	SKilLType(String skillType) {
		this.skillType = skillType;
	}
	
	public static boolean isCollection(String skillType){
		String[] collectionTypes = {"java.util.ArrayList","java.util.LinkedList","java.util.HashSet"};
		String mappedValue = typeMapping.get(skillType);
		if(mappedValue == null){
			return false;
		}else{
			return Arrays.asList(collectionTypes).contains(mappedValue);
		}
	}
	
	/**
	 * Checks whether a provided class name is a primitive type
	 * 
	 * @param type
	 *            the name of the class to be checked
	 * @return true, if type is a primitive type. False, otherwise.
	 */
	public static boolean isPrimitive(String skillType) {
		String[] primitiveTypes = { "byte", "short", "int", "long", "float", "double", "boolean", "char" };
		String mappedValue = typeMapping.get(skillType);
		if (mappedValue == null) {
			return false;
		} else {
			return Arrays.asList(primitiveTypes).contains(mappedValue);
		}
	}

	
	public static String getJavaType(String skillType){
		return typeMapping.get(skillType);
	}
	
	public static SKilLType fromString(String type){
		for(SKilLType currentType : SKilLType.values()){
			if(currentType.skillType.equals(type)){
				return currentType;
			}
		}
		return null;
	}
	
}

package creator;

import java.util.Arrays;
import java.util.HashMap;

public enum SKilLType {
	Bool("skill.lang.bool"), Integer8("skill.lang.i8"), Integer16("skill.lang.i16"), Integer32(
			"skill.lang.i32"), Integer64("skill.lang.i64"), VariableInt64("skill.lang.v64"), Float32(
					"skill.lang.f32"), Float64("skill.lang.f64"), Array("skill.lang.array"), List(
							"skill.lang.list"), Set("skill.lang.set"), Map(
									"skill.lang.map"), String("skill.lang.string"), Annotation("skill.lang.annotation");

	private String skillType;
	private static HashMap<String, String> typeMapping = new HashMap<>();
	static {
		typeMapping.put("skill.lang.bool", "boolean");
		typeMapping.put("skill.lang.i8", "byte");
		typeMapping.put("skill.lang.i16", "short");
		typeMapping.put("skill.lang.i32", "int");
		typeMapping.put("skill.lang.i64", "long");
		typeMapping.put("skill.lang.v64", "long");
		typeMapping.put("skill.lang.f32", "float");
		typeMapping.put("skill.lang.f64", "double");
		typeMapping.put("skill.lang.array", "java.util.ArrayList");
		typeMapping.put("skill.lang.list", "java.util.LinkedList");
		typeMapping.put("skill.lang.set", "java.util.HashSet");
		typeMapping.put("skill.lang.map", "java.util.HashMap");
		typeMapping.put("skill.lang.string", "java.lang.String");
		typeMapping.put("skill.lang.annotation", "java.lang.Object");
	}

	SKilLType(String skillType) {
		this.skillType = skillType;
	}

	public static boolean isCollection(String skillType) {
		String[] collectionTypes = { "java.util.ArrayList", "java.util.LinkedList", "java.util.HashSet" };
		String mappedValue = typeMapping.get(skillType);
		if (mappedValue == null) {
			return false;
		} else {
			return Arrays.asList(collectionTypes).contains(mappedValue);
		}
	}

	/**
	 * Checks whether a provided class name is a primitive type
	 * 
	 * @param type
	 *            the name of the class to be checked
	 * @return true, if type is a primitive type. False, otherwise.
	 */
	public static boolean isPrimitive(String type) {
		String[] primitiveTypes = { "byte", "short", "int", "long", "float", "double", "boolean", "char" };
		return Arrays.asList(primitiveTypes).contains(type);
	}

	public static String getJavaType(String skillType) {
		return typeMapping.get(skillType);
	}

	public static SKilLType fromString(String type) {
		for (SKilLType currentType : SKilLType.values()) {
			if (currentType.skillType.equals(type)) {
				return currentType;
			}
		}
		return null;
	}

}

Use long instead of BigInteger + more