/* * 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.Map; import java.security.Principal; import org.apache.kafka.common.network.TransportLayer; import org.apache.kafka.common.network.Authenticator; import org.apache.kafka.common.KafkaException; /** DefaultPrincipalBuilder which return transportLayer's peer Principal **/ public class DefaultPrincipalBuilder implements PrincipalBuilder { public void configure(Map<String, ?> configs) {} public Principal buildPrincipal(TransportLayer transportLayer, Authenticator authenticator) throws KafkaException { try { return transportLayer.peerPrincipal(); } catch (Exception e) { throw new KafkaException("Failed to build principal due to: ", e); } } public void close() throws KafkaException {} }