Java tutorial
/* * 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.eagle.security.hive.sensitivity; import com.google.common.base.Function; import com.google.common.collect.Maps; import org.apache.eagle.common.config.EagleConfigConstants; import org.apache.eagle.log.entity.GenericServiceAPIResponseEntity; import org.apache.eagle.security.util.ExternalDataCache; import org.apache.eagle.service.client.IEagleServiceClient; import org.apache.eagle.service.client.impl.EagleServiceClientImpl; import org.apache.eagle.security.entity.HiveResourceSensitivityAPIEntity; import org.quartz.Job; import org.quartz.JobDataMap; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.List; import java.util.Map; public class HiveResourceSensitivityPollingJob implements Job { private final static Logger LOG = LoggerFactory.getLogger(HiveResourceSensitivityPollingJob.class); @Override public void execute(JobExecutionContext context) throws JobExecutionException { JobDataMap jobDataMap = context.getJobDetail().getJobDataMap(); try { List<HiveResourceSensitivityAPIEntity> hiveResourceSensitivity = load(jobDataMap); if (hiveResourceSensitivity == null) { LOG.warn("Hive resource sensitivity information is empty"); return; } Map<String, HiveResourceSensitivityAPIEntity> map = Maps.uniqueIndex(hiveResourceSensitivity, new Function<HiveResourceSensitivityAPIEntity, String>() { @Override public String apply(HiveResourceSensitivityAPIEntity input) { return input.getTags().get("hiveResource"); } }); ExternalDataCache.getInstance().setJobResult(getClass(), map); } catch (Exception ex) { LOG.error("Fail to load hive resource sensitivity data", ex); } } private List<HiveResourceSensitivityAPIEntity> load(JobDataMap jobDataMap) throws Exception { Map<String, Object> map = (Map<String, Object>) jobDataMap.get(EagleConfigConstants.EAGLE_SERVICE); String eagleServiceHost = (String) map.get(EagleConfigConstants.HOST); Integer eagleServicePort = (Integer) map.get(EagleConfigConstants.PORT); String username = map.containsKey(EagleConfigConstants.USERNAME) ? (String) map.get(EagleConfigConstants.USERNAME) : null; String password = map.containsKey(EagleConfigConstants.PASSWORD) ? (String) map.get(EagleConfigConstants.PASSWORD) : null; // load from eagle database LOG.info("Load hive resource sensitivity information from eagle service " + eagleServiceHost + ":" + eagleServicePort); IEagleServiceClient client = new EagleServiceClientImpl(eagleServiceHost, eagleServicePort, username, password); String query = "HiveResourceSensitivityService[]{*}"; GenericServiceAPIResponseEntity<HiveResourceSensitivityAPIEntity> response = client.search() .pageSize(Integer.MAX_VALUE).query(query).send(); client.close(); if (response.getException() != null) throw new IllegalStateException(response.getException()); return response.getObj(); } }