/** * 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 com.alibaba.jstorm.callback.impl; import java.util.Map; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.alibaba.jstorm.callback.BaseCallback; import com.alibaba.jstorm.cluster.StormClusterState; import com.alibaba.jstorm.cluster.StormConfig; import com.alibaba.jstorm.cluster.StormStatus; import com.alibaba.jstorm.daemon.nimbus.NimbusData; import com.alibaba.jstorm.schedule.Assignment; import com.alibaba.jstorm.schedule.Assignment.AssignmentType; /** * Update user configuration * * @author Basti.lj */ public class UpdateTopologyTransitionCallback extends BaseCallback { private static Logger LOG = LoggerFactory.getLogger(DelayStatusTransitionCallback.class); public static final int DEFAULT_DELAY_SECONDS = 30; private NimbusData data; private String topologyId; private StormStatus currentStatus; public UpdateTopologyTransitionCallback(NimbusData data, String topologyId, StormStatus currentStatus) { this.data = data; this.topologyId = topologyId; this.currentStatus = currentStatus; } @Override public <T> Object execute(T... args) { StormClusterState clusterState = data.getStormClusterState(); try { Map userConf = (Map) args[0]; Map topoConf = StormConfig.read_nimbus_topology_conf(topologyId, data.getBlobStore()); topoConf.putAll(userConf); Assignment assignment = clusterState.assignment_info(topologyId, null); assignment.setAssignmentType(AssignmentType.UpdateTopology); assignment.updateTimeStamp(); clusterState.set_assignment(topologyId, assignment); LOG.info("Successfully update topology information to ZK for " + topologyId); } catch (Exception e) { LOG.error("Failed to update topology.", e); } return currentStatus; } }