io.jsonwebtoken.impl.security.KeyOperationConverter Maven / Gradle / Ivy
/*
* Copyright © 2023 jsonwebtoken.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.jsonwebtoken.impl.security;
import io.jsonwebtoken.impl.lang.Converter;
import io.jsonwebtoken.lang.Assert;
import io.jsonwebtoken.lang.Registry;
import io.jsonwebtoken.security.Jwks;
import io.jsonwebtoken.security.KeyOperation;
final class KeyOperationConverter implements Converter {
static final Converter DEFAULT = new KeyOperationConverter(Jwks.OP.get());
private final Registry registry;
KeyOperationConverter(Registry registry) {
this.registry = Assert.notEmpty(registry, "KeyOperation registry cannot be null or empty.");
}
@Override
public String applyTo(KeyOperation operation) {
Assert.notNull(operation, "KeyOperation cannot be null.");
return operation.getId();
}
@Override
public KeyOperation applyFrom(Object o) {
if (o instanceof KeyOperation) {
return (KeyOperation) o;
}
String id = Assert.isInstanceOf(String.class, o, "Argument must be a KeyOperation or String.");
Assert.hasText(id, "KeyOperation string value cannot be null or empty.");
KeyOperation keyOp = this.registry.get(id);
return keyOp != null ? keyOp : Jwks.OP.builder().id(id).build(); // custom operations are allowed
}
}