dev.orne.beans.StringIdentity Maven / Gradle / Ivy
package dev.orne.beans;
/*-
* #%L
* Orne Beans
* %%
* Copyright (C) 2020 Orne Developments
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import javax.validation.constraints.NotNull;
/**
* Implementation for {@code Identity} for identities composed
* of a single inner {@code String} value.
*
* @author (w) Iker Hernaez
* @version 1.0, 2020-05
* @since 0.1
*/
public class StringIdentity
extends AbstractSimpleIdentity {
/** The serial version UID. */
private static final long serialVersionUID = 5660267975323191055L;
/**
* Creates a new instance.
*
* @param value The identity value
*/
public StringIdentity(
final String value) {
super(value);
}
/**
* Copy constructor.
*
* @param copy The instance to copy
*/
public StringIdentity(
final @NotNull StringIdentity copy) {
super(copy);
}
/**
* Resolves the specified identity token to a valid {@code StringIdentity}.
*
* @param token The identity token
* @return The resolved identity token
* @throws NullPointerException If the identity token is {@code null}
* @throws UnrecognizedIdentityTokenException If the identity token is not
* a valid identity token or it doesn't start with the expected prefix
*/
@IdentityTokenResolver
public static @NotNull StringIdentity fromIdentityToken(
final @NotNull String token) {
return new StringIdentity(extractTokenValue(
IdentityTokenFormatter.DEFAULT_PREFIX,
token));
}
/**
* Extracts the {@code String} value of a token generated by
* {@code StringIdentity}.
*
* Note that the resulting value can be {@code null}. If a non-null
* value is expected use{@code extractRequiredTokenValue(String, String)}.
*
* @param prefix The expected identity token prefix.
* @param token The identity token.
* @return The extracted {@code String} value.
* @throws NullPointerException If the identity token is {@code null}
* @throws UnrecognizedIdentityTokenException If the identity token is not
* a valid simple identity token or if it doesn't start with the expected
* prefix.
* @see #extractRequiredTokenValue(String, String)
*/
public static String extractTokenValue(
final @NotNull String prefix,
final @NotNull String token) {
return IdentityTokenFormatter.parse(prefix, token);
}
/**
* Extracts the {@code String} value of a token generated by
* {@code StringIdentity}.
*
* If the resulting value is {@code null} an exception is thrown.
*
* @param prefix The expected identity token prefix.
* @param token The identity token.
* @return The extracted {@code String} value.
* @throws NullPointerException If the identity token is {@code null}
* @throws UnrecognizedIdentityTokenException If the identity token is not
* a valid simple identity token, if it doesn't start with the expected
* prefix or if the extracted value is null.
* @see #extractTokenValue(String, String)
*/
public static @NotNull String extractRequiredTokenValue(
final @NotNull String prefix,
final @NotNull String token) {
final String result = extractTokenValue(prefix, token);
if (result == null) {
throw new UnrecognizedIdentityTokenException(
"Unrecognized identity token: " + token);
}
return result;
}
}