| /* |
| * 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.gobblin.service.monitoring; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.TreeSet; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Iterators; |
| import com.typesafe.config.Config; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| import lombok.Getter; |
| import lombok.extern.slf4j.Slf4j; |
| |
| import org.apache.gobblin.configuration.State; |
| import org.apache.gobblin.metastore.FileContextBasedFsStateStore; |
| import org.apache.gobblin.metastore.FileContextBasedFsStateStoreFactory; |
| import org.apache.gobblin.metastore.FsStateStore; |
| import org.apache.gobblin.runtime.troubleshooter.MultiContextIssueRepository; |
| |
| |
| /** |
| * A FileSystem based implementation of {@link JobStatusRetriever}. This implementation stores the job statuses |
| * as {@link org.apache.gobblin.configuration.State} objects in a {@link FsStateStore}. |
| * The store name is set to flowGroup.flowName, while the table name is set to flowExecutionId.jobGroup.jobName. |
| */ |
| @Slf4j |
| @Singleton |
| public class FsJobStatusRetriever extends JobStatusRetriever { |
| public static final String CONF_PREFIX = "fsJobStatusRetriever"; |
| |
| @Getter |
| private final FileContextBasedFsStateStore<State> stateStore; |
| |
| @Inject |
| public FsJobStatusRetriever(Config config, MultiContextIssueRepository issueRepository) { |
| super(issueRepository); |
| this.stateStore = (FileContextBasedFsStateStore<State>) new FileContextBasedFsStateStoreFactory(). |
| createStateStore(config.getConfig(CONF_PREFIX), State.class); |
| } |
| |
| @Override |
| public Iterator<JobStatus> getJobStatusesForFlowExecution(String flowName, String flowGroup, long flowExecutionId) { |
| Preconditions.checkArgument(flowName != null, "FlowName cannot be null"); |
| Preconditions.checkArgument(flowGroup != null, "FlowGroup cannot be null"); |
| |
| Predicate<String> flowExecutionIdPredicate = input -> input.startsWith(String.valueOf(flowExecutionId) + "."); |
| String storeName = KafkaJobStatusMonitor.jobStatusStoreName(flowGroup, flowName); |
| try { |
| List<String> tableNames = this.stateStore.getTableNames(storeName, flowExecutionIdPredicate); |
| List<JobStatus> jobStatuses = new ArrayList<>(tableNames.size()); |
| for (String tableName: tableNames) { |
| List<State> jobStates = this.stateStore.getAll(storeName, tableName); |
| if (jobStates.isEmpty()) { |
| return Iterators.emptyIterator(); |
| } |
| jobStatuses.add(getJobStatus(jobStates.get(0))); |
| } |
| return jobStatuses.iterator(); |
| } catch (IOException e) { |
| log.error("IOException encountered when retrieving job statuses for flow: {},{},{}", flowGroup, flowName, flowExecutionId, e); |
| return Iterators.emptyIterator(); |
| } |
| } |
| |
| @Override |
| public Iterator<JobStatus> getJobStatusesForFlowExecution(String flowName, String flowGroup, long flowExecutionId, |
| String jobName, String jobGroup) { |
| Preconditions.checkArgument(flowName != null, "flowName cannot be null"); |
| Preconditions.checkArgument(flowGroup != null, "flowGroup cannot be null"); |
| Preconditions.checkArgument(jobName != null, "jobName cannot be null"); |
| Preconditions.checkArgument(jobGroup != null, "jobGroup cannot be null"); |
| |
| try { |
| String storeName = KafkaJobStatusMonitor.jobStatusStoreName(flowGroup, flowName); |
| String tableName = KafkaJobStatusMonitor.jobStatusTableName(flowExecutionId, jobGroup, jobName); |
| List<State> jobStates = this.stateStore.getAll(storeName, tableName); |
| if (jobStates.isEmpty()) { |
| return Iterators.emptyIterator(); |
| } else { |
| return Iterators.singletonIterator(getJobStatus(jobStates.get(0))); |
| } |
| } catch (IOException e) { |
| log.error("Exception encountered when listing files", e); |
| return Iterators.emptyIterator(); |
| } |
| } |
| |
| /** |
| * @param flowName |
| * @param flowGroup |
| * @return the last <code>count</code> flow execution ids with the given flowName and flowGroup. -1 will be returned if no such execution found. |
| */ |
| @Override |
| public List<Long> getLatestExecutionIdsForFlow(String flowName, String flowGroup, int count) { |
| Preconditions.checkArgument(flowName != null, "flowName cannot be null"); |
| Preconditions.checkArgument(flowGroup != null, "flowGroup cannot be null"); |
| Preconditions.checkArgument(count > 0, "Number of execution ids must be at least 1."); |
| try { |
| String storeName = KafkaJobStatusMonitor.jobStatusStoreName(flowGroup, flowName); |
| List<String> tableNames = this.stateStore.getTableNames(storeName, input -> true); |
| Set<Long> flowExecutionIds = new TreeSet<>(tableNames.stream() |
| .map(KafkaJobStatusMonitor::getExecutionIdFromTableName) |
| .collect(Collectors.toList())).descendingSet(); |
| return ImmutableList.copyOf(Iterables.limit(flowExecutionIds, count)); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| } |