Github user steveloughran commented on a diff in the pull request: https://github.com/apache/spark/pull/22598#discussion_r226235157 --- Diff: external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/TokenUtil.scala --- @@ -0,0 +1,111 @@ +/* + * 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.spark.sql.kafka010 + +import java.text.SimpleDateFormat +import java.util.Properties + +import org.apache.hadoop.io.Text +import org.apache.hadoop.security.token.{Token, TokenIdentifier} +import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier +import org.apache.kafka.clients.CommonClientConfigs +import org.apache.kafka.clients.admin.{AdminClient, CreateDelegationTokenOptions} +import org.apache.kafka.common.config.SaslConfigs +import org.apache.kafka.common.security.token.delegation.DelegationToken + +import org.apache.spark.SparkConf +import org.apache.spark.internal.Logging +import org.apache.spark.internal.config._ + +private[kafka010] object TokenUtil extends Logging { + private[kafka010] val TOKEN_KIND = new Text("KAFKA_DELEGATION_TOKEN") + private[kafka010] val TOKEN_SERVICE = new Text("kafka.server.delegation.token") + + private[kafka010] class KafkaDelegationTokenIdentifier extends AbstractDelegationTokenIdentifier { + override def getKind: Text = TOKEN_KIND; + } + + private def printToken(token: DelegationToken): Unit = { + if (log.isDebugEnabled) { + val dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm") + logDebug("%-15s %-30s %-15s %-25s %-15s %-15s %-15s".format( + "TOKENID", "HMAC", "OWNER", "RENEWERS", "ISSUEDATE", "EXPIRYDATE", "MAXDATE")) + val tokenInfo = token.tokenInfo + logDebug("%-15s [hidden] %-15s %-25s %-15s %-15s %-15s".format( + tokenInfo.tokenId, + tokenInfo.owner, + tokenInfo.renewersAsString, + dateFormat.format(tokenInfo.issueTimestamp), + dateFormat.format(tokenInfo.expiryTimestamp), + dateFormat.format(tokenInfo.maxTimestamp))) --- End diff -- are these always going to be valid? I.e. > 0?
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