| package org.apache.helix.task; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeMap; |
| |
| import org.apache.helix.HelixProperty; |
| import org.apache.helix.ZNRecord; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Typed interface to the workflow context information stored by {@link TaskRebalancer} in the Helix |
| * property store |
| */ |
| public class WorkflowContext extends HelixProperty { |
| private static final Logger LOG = LoggerFactory.getLogger(WorkflowContext.class); |
| |
| protected enum WorkflowContextProperties { |
| STATE, |
| START_TIME, |
| FINISH_TIME, |
| JOB_STATES, |
| LAST_SCHEDULED_WORKFLOW, |
| SCHEDULED_WORKFLOWS, |
| LAST_PURGE_TIME, |
| StartTime, // TODO this should be named JOB_SCHEDULED_START_TIME, it's not the actual start time of the job |
| NAME |
| } |
| |
| public static final int NOT_STARTED = -1; |
| public static final int UNFINISHED = -1; |
| |
| public WorkflowContext(ZNRecord record) { |
| super(record); |
| } |
| |
| public void setWorkflowState(TaskState s) { |
| String workflowState = _record.getSimpleField(WorkflowContextProperties.STATE.name()); |
| if (workflowState == null) { |
| _record.setSimpleField(WorkflowContextProperties.STATE.name(), s.name()); |
| } else if (!workflowState.equals(TaskState.FAILED.name()) && !workflowState |
| .equals(TaskState.COMPLETED.name())) { |
| _record.setSimpleField(WorkflowContextProperties.STATE.name(), s.name()); |
| } |
| } |
| |
| public TaskState getWorkflowState() { |
| String state = _record.getSimpleField(WorkflowContextProperties.STATE.name()); |
| if (state == null) { |
| return TaskState.NOT_STARTED; |
| } |
| |
| return TaskState.valueOf(state); |
| } |
| |
| public void setJobState(String job, TaskState s) { |
| Map<String, String> states = _record.getMapField(WorkflowContextProperties.JOB_STATES.name()); |
| if (states == null) { |
| states = new TreeMap<String, String>(); |
| _record.setMapField(WorkflowContextProperties.JOB_STATES.name(), states); |
| } |
| states.put(job, s.name()); |
| } |
| |
| protected void removeJobStates(Set<String> jobs) { |
| Map<String, String> states = _record.getMapField(WorkflowContextProperties.JOB_STATES.name()); |
| if (states != null) { |
| states.keySet().removeAll(jobs); |
| _record.setMapField(WorkflowContextProperties.JOB_STATES.name(), states); |
| } |
| } |
| |
| public TaskState getJobState(String job) { |
| Map<String, String> states = _record.getMapField(WorkflowContextProperties.JOB_STATES.name()); |
| if (states == null) { |
| return null; |
| } |
| |
| String s = states.get(job); |
| if (s == null) { |
| return null; |
| } |
| |
| return TaskState.valueOf(s); |
| } |
| |
| protected void setJobStartTime(String job, long time) { |
| Map<String, String> startTimes = |
| _record.getMapField(WorkflowContextProperties.StartTime.name()); |
| if (startTimes == null) { |
| startTimes = new HashMap<String, String>(); |
| _record.setMapField(WorkflowContextProperties.StartTime.name(), startTimes); |
| } |
| startTimes.put(job, String.valueOf(time)); |
| } |
| |
| protected void removeJobStartTime(Set<String> jobs) { |
| Map<String, String> startTimes = |
| _record.getMapField(WorkflowContextProperties.StartTime.name()); |
| if (startTimes != null) { |
| startTimes.keySet().removeAll(jobs); |
| _record.setMapField(WorkflowContextProperties.StartTime.name(), startTimes); |
| } |
| } |
| |
| public long getJobStartTime(String job) { |
| Map<String, String> startTimes = |
| _record.getMapField(WorkflowContextProperties.StartTime.name()); |
| if (startTimes == null || !startTimes.containsKey(job)) { |
| return -1; |
| } |
| |
| String t = startTimes.get(job); |
| if (t == null) { |
| return -1; |
| } |
| |
| try { |
| long ret = Long.valueOf(t); |
| return ret; |
| } catch (NumberFormatException e) { |
| LOG.warn("Number error " + t + " for job start time of " + job); |
| return -1; |
| } |
| } |
| |
| public Map<String, Long> getJobStartTimes() { |
| Map<String, Long> startTimes = new HashMap<String, Long>(); |
| Map<String, String> startTimesMap = |
| _record.getMapField(WorkflowContextProperties.StartTime.name()); |
| if (startTimesMap != null) { |
| for (Map.Entry<String, String> time : startTimesMap.entrySet()) { |
| startTimes.put(time.getKey(), Long.valueOf(time.getValue())); |
| } |
| } |
| |
| return startTimes; |
| } |
| |
| public Map<String, TaskState> getJobStates() { |
| Map<String, TaskState> jobStates = new HashMap<String, TaskState>(); |
| Map<String, String> stateFieldMap = |
| _record.getMapField(WorkflowContextProperties.JOB_STATES.name()); |
| if (stateFieldMap != null) { |
| for (Map.Entry<String, String> state : stateFieldMap.entrySet()) { |
| jobStates.put(state.getKey(), TaskState.valueOf(state.getValue())); |
| } |
| } |
| |
| return jobStates; |
| } |
| |
| public void setStartTime(long t) { |
| _record.setSimpleField(WorkflowContextProperties.START_TIME.name(), String.valueOf(t)); |
| } |
| |
| public long getStartTime() { |
| String tStr = _record.getSimpleField(WorkflowContextProperties.START_TIME.name()); |
| if (tStr == null) { |
| return -1; |
| } |
| |
| return Long.parseLong(tStr); |
| } |
| |
| public void setFinishTime(long t) { |
| _record.setSimpleField(WorkflowContextProperties.FINISH_TIME.name(), String.valueOf(t)); |
| } |
| |
| public long getFinishTime() { |
| String tStr = _record.getSimpleField(WorkflowContextProperties.FINISH_TIME.name()); |
| if (tStr == null) { |
| return UNFINISHED; |
| } |
| |
| return Long.parseLong(tStr); |
| } |
| |
| public void setLastScheduledSingleWorkflow(String workflow) { |
| _record.setSimpleField(WorkflowContextProperties.LAST_SCHEDULED_WORKFLOW.name(), workflow); |
| // Record scheduled workflow into the history list as well |
| List<String> workflows = getScheduledWorkflows(); |
| if (workflows == null) { |
| workflows = new ArrayList<String>(); |
| _record.setListField(WorkflowContextProperties.SCHEDULED_WORKFLOWS.name(), workflows); |
| } |
| workflows.add(workflow); |
| } |
| |
| public String getLastScheduledSingleWorkflow() { |
| return _record.getSimpleField(WorkflowContextProperties.LAST_SCHEDULED_WORKFLOW.name()); |
| } |
| |
| protected void setLastJobPurgeTime(long epochTime) { |
| _record.setSimpleField(WorkflowContextProperties.LAST_PURGE_TIME.name(), |
| String.valueOf(epochTime)); |
| } |
| |
| public long getLastJobPurgeTime() { |
| return _record.getLongField(WorkflowContextProperties.LAST_PURGE_TIME.name(), -1); |
| } |
| |
| public List<String> getScheduledWorkflows() { |
| return _record.getListField(WorkflowContextProperties.SCHEDULED_WORKFLOWS.name()); |
| } |
| |
| public void setName(String name) { |
| _record.setSimpleField(WorkflowContextProperties.NAME.name(), name); |
| } |
| |
| public String getName() { |
| return _record.getSimpleField(WorkflowContextProperties.NAME.name()); |
| } |
| } |