| package org.apache.helix.api.config; |
| |
| /* |
| * 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.HashMap; |
| import java.util.Map; |
| |
| import org.apache.helix.zookeeper.datamodel.ZNRecord; |
| |
| public class StateTransitionTimeoutConfig { |
| public enum StateTransitionTimeoutProperty { |
| /** |
| * The timeout for a state transition |
| */ |
| TIMEOUT |
| } |
| |
| private final String _resource; |
| private final Map<String, String> _timeoutMap; |
| |
| public StateTransitionTimeoutConfig(ZNRecord record) { |
| _resource = record.getId(); |
| if (record.getMapFields().containsKey(StateTransitionTimeoutProperty.TIMEOUT.name())) { |
| _timeoutMap = record.getMapField(StateTransitionTimeoutProperty.TIMEOUT.name()); |
| } else { |
| _timeoutMap = new HashMap<String, String>(); |
| } |
| } |
| |
| /** |
| * Set state transition timeout for given resource. |
| * Does not apply for Workflow and Job |
| * @param from The from state |
| * @param to The to state |
| * @param timeout The timeout in miliseconds |
| */ |
| public void setStateTransitionTimeout(String from, String to, int timeout) { |
| setStateTransitionTimeout(null, from, to, timeout); |
| } |
| |
| /** |
| * Set state transition timeout for general condition. |
| * Does not apply for Workflow and Job |
| * @param partitionName The partition prefer to time out |
| * @param from The from state |
| * @param to The to state |
| * @param timeout The timeout in miliseconds |
| */ |
| private void setStateTransitionTimeout(String partitionName, String from, String to, |
| int timeout) { |
| if (partitionName != null) { |
| _timeoutMap.put(partitionName, String.valueOf(timeout)); |
| } else { |
| _timeoutMap.put(String.format("%s.%s", from, to), String.valueOf(timeout)); |
| } |
| } |
| |
| /** |
| * Get state transition time out for given partition. |
| * Does not apply for Workflow and Job |
| * @param partitionName The partition prefer to time out |
| * @param from The from state |
| * @param to The to state |
| * @return The timeout in miliseconds. Or -1 if there is no timeout matched up. |
| */ |
| public int getStateTransitionTimeout(String partitionName, String from, String to) { |
| if (partitionName != null && _timeoutMap.containsKey(partitionName)) { |
| return Integer.parseInt(_timeoutMap.get(partitionName)); |
| } else if (_timeoutMap.containsKey(String.format("%s.%s", from, to))) { |
| return Integer.parseInt(_timeoutMap.get(String.format("%s.%s", from, to))); |
| } else if (_timeoutMap.containsKey(String.format("*.%s", to))) { |
| return Integer.parseInt(_timeoutMap.get(String.format("*.%s", to))); |
| } else if (_timeoutMap.containsKey(String.format("%s.*", from))) { |
| return Integer.parseInt(_timeoutMap.get(String.format("%s.*", from))); |
| } else if (_timeoutMap.containsKey("*.*")) { |
| return Integer.parseInt(_timeoutMap.get("*.*")); |
| } |
| return -1; |
| } |
| |
| /** |
| * Get state transition time out for given partition. |
| * Does not apply for Workflow and Job |
| * @param from The from state |
| * @param to The to state |
| * @return The timeout in miliseconds. Or -1 if there is no timeout matched up. |
| */ |
| public int getStateTransitionTimeout(String from, String to) { |
| return getStateTransitionTimeout(null, from, to); |
| } |
| |
| public Map<String, String> getTimeoutMap() { |
| return _timeoutMap; |
| } |
| |
| public String getResource() { |
| return _resource; |
| } |
| |
| /** |
| * Get StateTransitionTimeoutConfig from ZNRecord instead of creating a new |
| * StateTransitionTimeoutConfig object. |
| * @param record The ZNRecord to extract StateTransitionTimeoutConfig |
| * @return A StateTransitionTimeoutConfig if ZNRecord contains StateTransitionTimeoutConfig |
| * setting. |
| */ |
| public static StateTransitionTimeoutConfig fromRecord(ZNRecord record) { |
| return record.getMapFields() |
| .containsKey(StateTransitionTimeoutConfig.StateTransitionTimeoutProperty.TIMEOUT.name()) |
| ? new StateTransitionTimeoutConfig(record) |
| : null; |
| } |
| } |