io.jsonwebtoken.impl.security.ProvidedKeyBuilder 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.lang.Assert;
import io.jsonwebtoken.security.KeyBuilder;
import java.security.Key;
abstract class ProvidedKeyBuilder> extends AbstractSecurityBuilder
implements KeyBuilder {
protected final K key;
ProvidedKeyBuilder(K key) {
this.key = Assert.notNull(key, "Key cannot be null.");
}
@Override
public final K build() {
if (this.key instanceof ProviderKey) { // already wrapped, don't wrap again:
return this.key;
}
return doBuild();
}
abstract K doBuild();
}