spring security ObjectToMapStringObjectConverter 源码
spring security ObjectToMapStringObjectConverter 代码
文件路径：/oauth2/oauth2-core/src/main/java/org/springframework/security/oauth2/core/converter/ObjectToMapStringObjectConverter.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 java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.ConditionalGenericConverter;
/**
* @author Joe Grandja
* @since 5.2
*/
final class ObjectToMapStringObjectConverter implements ConditionalGenericConverter {
@Override
public Set<ConvertiblePair> getConvertibleTypes() {
return Collections.singleton(new ConvertiblePair(Object.class, Map.class));
}
@Override
public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
if (targetType.getElementTypeDescriptor() == null
|| targetType.getMapKeyTypeDescriptor().getType().equals(String.class)) {
return true;
}
return false;
}
@Override
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
if (source == null) {
return null;
}
if (!(source instanceof Map)) {
return null;
}
Map<?, ?> sourceMap = (Map<?, ?>) source;
Map<String, Object> result = new HashMap<>();
sourceMap.forEach((k, v) -> result.put(k.toString(), v));
return result;
}
}
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