org.springframework.security.web.authentication.DelegatingAuthenticationConverter Maven / Gradle / Ivy
/*
* Copyright 2002-2024 the original author or authors.
*
* 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
*
* https://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 org.springframework.security.web.authentication;
import java.util.ArrayList;
import java.util.List;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.security.core.Authentication;
import org.springframework.util.Assert;
/**
* A {@link AuthenticationConverter}, that iterates over multiple
* {@link AuthenticationConverter}. The first non-null {@link Authentication} will be used
* as a result.
*
* @author Max Batischev
* @since 6.3
*/
public final class DelegatingAuthenticationConverter implements AuthenticationConverter {
private final List delegates;
public DelegatingAuthenticationConverter(List delegates) {
Assert.notEmpty(delegates, "delegates cannot be null");
this.delegates = new ArrayList<>(delegates);
}
public DelegatingAuthenticationConverter(AuthenticationConverter... delegates) {
Assert.notEmpty(delegates, "delegates cannot be null");
this.delegates = List.of(delegates);
}
@Override
public Authentication convert(HttpServletRequest request) {
for (AuthenticationConverter delegate : this.delegates) {
Authentication authentication = delegate.convert(request);
if (authentication != null) {
return authentication;
}
}
return null;
}
}