| /** |
| * 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.container.cgroup; |
| |
| import java.util.Set; |
| |
| /** |
| * A class that describes a cgroup hierarchy |
| */ |
| public class Hierarchy { |
| |
| private final String name; |
| |
| private final Set<SubSystemType> subSystems; |
| |
| private final String type; |
| |
| private final String dir; |
| |
| private final CgroupCommon rootCgroups; |
| |
| public Hierarchy(String name, Set<SubSystemType> subSystems, String dir) { |
| this.name = name; |
| this.subSystems = subSystems; |
| this.dir = dir; |
| this.rootCgroups = new CgroupCommon(this, dir); |
| this.type = CgroupUtils.subSystemsToString(subSystems); |
| } |
| |
| /** |
| * get subsystems |
| */ |
| public Set<SubSystemType> getSubSystems() { |
| return subSystems; |
| } |
| |
| /** |
| * get all subsystems in hierarchy as a comma delimited list |
| */ |
| public String getType() { |
| return type; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((dir == null) ? 0 : dir.hashCode()); |
| result = prime * result + ((name == null) ? 0 : name.hashCode()); |
| result = prime * result + ((type == null) ? 0 : type.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| Hierarchy other = (Hierarchy) obj; |
| if (dir == null) { |
| if (other.dir != null) { |
| return false; |
| } |
| } else if (!dir.equals(other.dir)) { |
| return false; |
| } |
| if (name == null) { |
| if (other.name != null) { |
| return false; |
| } |
| } else if (!name.equals(other.name)) { |
| return false; |
| } |
| if (type == null) { |
| if (other.type != null) { |
| return false; |
| } |
| } else if (!type.equals(other.type)) { |
| return false; |
| } |
| return true; |
| } |
| |
| public String getDir() { |
| return dir; |
| } |
| |
| public CgroupCommon getRootCgroups() { |
| return rootCgroups; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public boolean isSubSystemMounted(SubSystemType subsystem) { |
| for (SubSystemType type : this.subSystems) { |
| if (type == subsystem) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return this.dir; |
| } |
| } |