spring security DefaultMessageSecurityMetadataSource 源码
spring security DefaultMessageSecurityMetadataSource 代码
文件路径：/messaging/src/main/java/org/springframework/security/messaging/access/intercept/DefaultMessageSecurityMetadataSource.java
/*
* 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.messaging.access.intercept;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import org.springframework.messaging.Message;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.messaging.access.expression.ExpressionBasedMessageSecurityMetadataSourceFactory;
import org.springframework.security.messaging.util.matcher.MessageMatcher;
/**
* A default implementation of {@link MessageSecurityMetadataSource} that looks up the
* {@link ConfigAttribute} instances using a {@link MessageMatcher}.
*
* <p>
* Each entry is considered in order. The first entry that matches, the corresponding
* {@code Collection<ConfigAttribute>} is returned.
* </p>
*
* @author Rob Winch
* @since 4.0
* @see ChannelSecurityInterceptor
* @see ExpressionBasedMessageSecurityMetadataSourceFactory
* @deprecated Use {@link MessageMatcherDelegatingAuthorizationManager} instead
*/
@Deprecated
public final class DefaultMessageSecurityMetadataSource implements MessageSecurityMetadataSource {
private final Map<MessageMatcher<?>, Collection<ConfigAttribute>> messageMap;
public DefaultMessageSecurityMetadataSource(
LinkedHashMap<MessageMatcher<?>, Collection<ConfigAttribute>> messageMap) {
this.messageMap = messageMap;
}
@Override
@SuppressWarnings({ "rawtypes", "unchecked" })
public Collection<ConfigAttribute> getAttributes(Object object) throws IllegalArgumentException {
final Message message = (Message) object;
for (Map.Entry<MessageMatcher<?>, Collection<ConfigAttribute>> entry : this.messageMap.entrySet()) {
if (entry.getKey().matches(message)) {
return entry.getValue();
}
}
return null;
}
@Override
public Collection<ConfigAttribute> getAllConfigAttributes() {
Set<ConfigAttribute> allAttributes = new HashSet<>();
for (Collection<ConfigAttribute> entry : this.messageMap.values()) {
allAttributes.addAll(entry);
}
return allAttributes;
}
@Override
public boolean supports(Class<?> clazz) {
return Message.class.isAssignableFrom(clazz);
}
}
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