spring security ClaimTypeConverter 源码
spring security ClaimTypeConverter 代码
文件路径：/oauth2/oauth2-core/src/main/java/org/springframework/security/oauth2/core/converter/ClaimTypeConverter.java
/*
* Copyright 2002-2021 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 java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import org.springframework.core.convert.converter.Converter;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
/**
* A {@link Converter} that provides type conversion for claim values.
*
* @author Joe Grandja
* @since 5.2
* @see Converter
*/
public final class ClaimTypeConverter implements Converter<Map<String, Object>, Map<String, Object>> {
private final Map<String, Converter<Object, ?>> claimTypeConverters;
/**
* Constructs a {@code ClaimTypeConverter} using the provided parameters.
* @param claimTypeConverters a {@link Map} of {@link Converter}(s) keyed by claim
* name
*/
public ClaimTypeConverter(Map<String, Converter<Object, ?>> claimTypeConverters) {
Assert.notEmpty(claimTypeConverters, "claimTypeConverters cannot be empty");
Assert.noNullElements(claimTypeConverters.values().toArray(), "Converter(s) cannot be null");
this.claimTypeConverters = Collections.unmodifiableMap(new LinkedHashMap<>(claimTypeConverters));
}
@Override
public Map<String, Object> convert(Map<String, Object> claims) {
if (CollectionUtils.isEmpty(claims)) {
return claims;
}
Map<String, Object> result = new HashMap<>(claims);
this.claimTypeConverters.forEach((claimName, typeConverter) -> {
if (claims.containsKey(claimName)) {
Object claim = claims.get(claimName);
Object mappedClaim = typeConverter.convert(claim);
if (mappedClaim != null) {
result.put(claimName, mappedClaim);
}
}
});
return result;
}
}
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