kafka SaslExtensionsCallback 源码
kafka SaslExtensionsCallback 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/security/auth/SaslExtensionsCallback.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.kafka.common.security.auth;
import java.util.Objects;
import javax.security.auth.callback.Callback;
/**
* Optional callback used for SASL mechanisms if any extensions need to be set
* in the SASL exchange.
*/
public class SaslExtensionsCallback implements Callback {
private SaslExtensions extensions = SaslExtensions.empty();
/**
* Returns always non-null {@link SaslExtensions} consisting of the extension
* names and values that are sent by the client to the server in the initial
* client SASL authentication message. The default value is
* {@link SaslExtensions#empty()} so that if this callback is
* unhandled the client will see a non-null value.
*/
public SaslExtensions extensions() {
return extensions;
}
/**
* Sets the SASL extensions on this callback.
*
* @param extensions
* the mandatory extensions to set
*/
public void extensions(SaslExtensions extensions) {
this.extensions = Objects.requireNonNull(extensions, "extensions must not be null");
}
}
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