70 lines
1.9 KiB
TypeScript
70 lines
1.9 KiB
TypeScript
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import ms from "ms";
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export abstract class TypeConverter<T> {
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abstract fromString(value: string): T;
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abstract toString(value: T): string;
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abstract validate(value: string): boolean;
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}
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export abstract class StringTypeConverter extends TypeConverter<string> {
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fromString(value: string): string {
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return value;
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}
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toString(value: string): string {
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return value;
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}
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validate(value: string): boolean {
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return typeof value === "string";
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}
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}
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export abstract class NumberTypeConverter extends TypeConverter<number> {
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fromString(value: string): number {
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return Number(value);
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}
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toString(value: number): string {
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return String(value);
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}
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validate(value: string): boolean {
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const num = Number(value);
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return !isNaN(num);
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}
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}
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export abstract class BooleanTypeConverter extends TypeConverter<boolean> {
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fromString(value: string): boolean {
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return value === "true";
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}
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toString(value: boolean): string {
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return value ? "true" : "false";
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}
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validate(value: string): boolean {
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return value === "true" || value === "false";
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}
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}
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export abstract class MsTypeConverter extends TypeConverter<ms.StringValue> {
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fromString(value: string): ms.StringValue {
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return value as ms.StringValue;
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}
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toString(value: ms.StringValue): string {
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return String(value);
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}
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validate(value: string): boolean {
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try {
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const result = ms(value as ms.StringValue);
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return result !== undefined;
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} catch (e) {
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return false;
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}
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}
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}
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// Konkrete Implementierungen der Converter
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export class StringConverter extends StringTypeConverter {}
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export class LongStringConverter extends StringTypeConverter {}
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export class UrlConverter extends StringTypeConverter {}
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export class NumberConverter extends NumberTypeConverter {}
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export class BooleanConverter extends BooleanTypeConverter {}
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export class MsConverter extends MsTypeConverter {}
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