| /* |
| * 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.storm.scheduler; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| public class Topologies implements Iterable<TopologyDetails> { |
| Map<String, TopologyDetails> topologies; |
| Map<String, String> nameToId; |
| Map<String, Map<String, Component>> allComponents; |
| |
| /** |
| * Create a new Topologies from a list of TopologyDetails. |
| * |
| * @param details the list of details to use. |
| * @throws IllegalArgumentException if duplicate topology ids are found. |
| */ |
| public Topologies(TopologyDetails... details) { |
| this(mkMap(details)); |
| } |
| |
| /** |
| * Create a new Topologies from a map of id to topology. |
| * |
| * @param topologies a map of topology id to topology details |
| */ |
| public Topologies(Map<String, TopologyDetails> topologies) { |
| if (topologies == null) { |
| topologies = Collections.emptyMap(); |
| } |
| this.topologies = new HashMap<>(topologies); |
| this.nameToId = new HashMap<>(topologies.size()); |
| |
| for (Map.Entry<String, TopologyDetails> entry : topologies.entrySet()) { |
| TopologyDetails topology = entry.getValue(); |
| this.nameToId.put(topology.getName(), entry.getKey()); |
| } |
| } |
| |
| /** |
| * Copy constructor. |
| */ |
| public Topologies(Topologies src) { |
| this(src.topologies); |
| } |
| |
| private static Map<String, TopologyDetails> mkMap(TopologyDetails[] details) { |
| Map<String, TopologyDetails> ret = new HashMap<>(); |
| for (TopologyDetails td : details) { |
| if (ret.put(td.getId(), td) != null) { |
| throw new IllegalArgumentException( |
| "Cannot have multiple topologies with the id " + td.getId()); |
| } |
| } |
| return ret; |
| } |
| |
| public Collection<String> getAllIds() { |
| return topologies.keySet(); |
| } |
| |
| /** |
| * Get a topology given an ID. |
| * |
| * @param topologyId the id of the topology to get |
| * @return the topology or null if it is not found |
| */ |
| public TopologyDetails getById(String topologyId) { |
| return topologies.get(topologyId); |
| } |
| |
| /** |
| * Get a topology given a topology name. Nimbus prevents multiple topologies from having the same name, so this assumes it is true. |
| * |
| * @param topologyName the name of the topology to look for |
| * @return the a topology with the given name. |
| */ |
| public TopologyDetails getByName(String topologyName) { |
| String topologyId = this.nameToId.get(topologyName); |
| |
| if (topologyId == null) { |
| return null; |
| } else { |
| return this.getById(topologyId); |
| } |
| } |
| |
| public Collection<TopologyDetails> getTopologies() { |
| return topologies.values(); |
| } |
| |
| /** |
| * Get all topologies submitted/owned by a given user. |
| * |
| * @param user the name of the user |
| * @return all of the topologies submitted by this user. |
| */ |
| public Collection<TopologyDetails> getTopologiesOwnedBy(String user) { |
| HashSet<TopologyDetails> ret = new HashSet<>(); |
| for (TopologyDetails td : this) { |
| if (user.equals(td.getTopologySubmitter())) { |
| ret.add(td); |
| } |
| } |
| return ret; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder ret = new StringBuilder(); |
| ret.append("Topologies:\n"); |
| for (TopologyDetails td : this.getTopologies()) { |
| ret.append(td.toString()).append("\n"); |
| } |
| return ret.toString(); |
| } |
| |
| @Override |
| public Iterator<TopologyDetails> iterator() { |
| return topologies.values().iterator(); |
| } |
| } |