spring security ClaimConversionService 源码
spring security ClaimConversionService 代码
文件路径：/oauth2/oauth2-core/src/main/java/org/springframework/security/oauth2/core/converter/ClaimConversionService.java
/*
* Copyright 2002-2019 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.security.oauth2.core.converter;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.ConverterRegistry;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.security.oauth2.core.ClaimAccessor;
/**
* A {@link ConversionService} configured with converters that provide type conversion for
* claim values.
*
* @author Joe Grandja
* @since 5.2
* @see GenericConversionService
* @see ClaimAccessor
*/
public final class ClaimConversionService extends GenericConversionService {
private static volatile ClaimConversionService sharedInstance;
private ClaimConversionService() {
addConverters(this);
}
/**
* Returns a shared instance of {@code ClaimConversionService}.
* @return a shared instance of {@code ClaimConversionService}
*/
public static ClaimConversionService getSharedInstance() {
ClaimConversionService sharedInstance = ClaimConversionService.sharedInstance;
if (sharedInstance == null) {
synchronized (ClaimConversionService.class) {
sharedInstance = ClaimConversionService.sharedInstance;
if (sharedInstance == null) {
sharedInstance = new ClaimConversionService();
ClaimConversionService.sharedInstance = sharedInstance;
}
}
}
return sharedInstance;
}
/**
* Adds the converters that provide type conversion for claim values to the provided
* {@link ConverterRegistry}.
* @param converterRegistry the registry of converters to add to
*/
public static void addConverters(ConverterRegistry converterRegistry) {
converterRegistry.addConverter(new ObjectToStringConverter());
converterRegistry.addConverter(new ObjectToBooleanConverter());
converterRegistry.addConverter(new ObjectToInstantConverter());
converterRegistry.addConverter(new ObjectToURLConverter());
converterRegistry.addConverter(new ObjectToListStringConverter());
converterRegistry.addConverter(new ObjectToMapStringObjectConverter());
}
}
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