org.springframework.boot.autoconfigure.session.SessionStoreMappings Maven / Gradle / Ivy
/*
* Copyright 2012-2019 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.boot.autoconfigure.session;
import java.util.Collections;
import java.util.EnumMap;
import java.util.Map;
import org.springframework.boot.WebApplicationType;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
/**
* Mappings between {@link StoreType} and {@code @Configuration}.
*
* @author Tommy Ludwig
* @author Eddú Meléndez
*/
final class SessionStoreMappings {
private static final Map MAPPINGS;
static {
Map mappings = new EnumMap<>(StoreType.class);
mappings.put(StoreType.REDIS,
new Configurations(RedisSessionConfiguration.class, RedisReactiveSessionConfiguration.class));
mappings.put(StoreType.MONGODB,
new Configurations(MongoSessionConfiguration.class, MongoReactiveSessionConfiguration.class));
mappings.put(StoreType.JDBC, new Configurations(JdbcSessionConfiguration.class, null));
mappings.put(StoreType.HAZELCAST, new Configurations(HazelcastSessionConfiguration.class, null));
mappings.put(StoreType.NONE,
new Configurations(NoOpSessionConfiguration.class, NoOpReactiveSessionConfiguration.class));
MAPPINGS = Collections.unmodifiableMap(mappings);
}
private SessionStoreMappings() {
}
static String getConfigurationClass(WebApplicationType webApplicationType, StoreType sessionStoreType) {
Configurations configurations = MAPPINGS.get(sessionStoreType);
Assert.state(configurations != null, () -> "Unknown session store type " + sessionStoreType);
return configurations.getConfiguration(webApplicationType);
}
static StoreType getType(WebApplicationType webApplicationType, String configurationClass) {
return MAPPINGS.entrySet().stream()
.filter((entry) -> ObjectUtils.nullSafeEquals(configurationClass,
entry.getValue().getConfiguration(webApplicationType)))
.map(Map.Entry::getKey).findFirst()
.orElseThrow(() -> new IllegalStateException("Unknown configuration class " + configurationClass));
}
private static class Configurations {
private final Class servletConfiguration;
private final Class reactiveConfiguration;
Configurations(Class servletConfiguration, Class reactiveConfiguration) {
this.servletConfiguration = servletConfiguration;
this.reactiveConfiguration = reactiveConfiguration;
}
String getConfiguration(WebApplicationType webApplicationType) {
switch (webApplicationType) {
case SERVLET:
return getName(this.servletConfiguration);
case REACTIVE:
return getName(this.reactiveConfiguration);
}
return null;
}
String getName(Class configuration) {
return (configuration != null) ? configuration.getName() : null;
}
}
}