org.springframework.security.web.context.SupplierDeferredSecurityContext Maven / Gradle / Ivy
/*
* Copyright 2002-2022 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.context;
import java.util.function.Supplier;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.log.LogMessage;
import org.springframework.security.core.context.DeferredSecurityContext;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolderStrategy;
/**
* @author Steve Riesenberg
* @since 5.8
*/
final class SupplierDeferredSecurityContext implements DeferredSecurityContext {
private static final Log logger = LogFactory.getLog(SupplierDeferredSecurityContext.class);
private final Supplier supplier;
private final SecurityContextHolderStrategy strategy;
private SecurityContext securityContext;
private boolean missingContext;
SupplierDeferredSecurityContext(Supplier supplier, SecurityContextHolderStrategy strategy) {
this.supplier = supplier;
this.strategy = strategy;
}
@Override
public SecurityContext get() {
init();
return this.securityContext;
}
@Override
public boolean isGenerated() {
init();
return this.missingContext;
}
private void init() {
if (this.securityContext != null) {
return;
}
this.securityContext = this.supplier.get();
this.missingContext = (this.securityContext == null);
if (this.missingContext) {
this.securityContext = this.strategy.createEmptyContext();
if (logger.isTraceEnabled()) {
logger.trace(LogMessage.format("Created %s", this.securityContext));
}
}
}
}