| /** |
| * 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.hadoop.hdds.scm.net; |
| |
| import org.apache.hadoop.HadoopIllegalArgumentException; |
| |
| import java.util.List; |
| |
| /** |
| * Network topology schema to housekeeper relevant information. |
| */ |
| public final class NodeSchema { |
| /** |
| * Network topology layer type enum definition. |
| */ |
| public enum LayerType{ |
| ROOT("Root", NetConstants.INNER_NODE_COST_DEFAULT), |
| INNER_NODE("InnerNode", NetConstants.INNER_NODE_COST_DEFAULT), |
| LEAF_NODE("Leaf", NetConstants.NODE_COST_DEFAULT); |
| |
| private final String description; |
| // default cost |
| private final int cost; |
| |
| LayerType(String description, int cost) { |
| this.description = description; |
| this.cost = cost; |
| } |
| |
| @Override |
| public String toString() { |
| return description; |
| } |
| |
| public int getCost(){ |
| return cost; |
| } |
| public static LayerType getType(String typeStr) { |
| for (LayerType type: LayerType.values()) { |
| if (typeStr.equalsIgnoreCase(type.toString())) { |
| return type; |
| } |
| } |
| return null; |
| } |
| } |
| |
| // default cost |
| private int cost; |
| // layer Type, mandatory property |
| private LayerType type; |
| // default name, can be null or "" |
| private String defaultName; |
| // layer prefix, can be null or "" |
| private String prefix; |
| // sublayer |
| private List<NodeSchema> sublayer; |
| |
| /** |
| * Builder for NodeSchema. |
| */ |
| public static class Builder { |
| private int cost = -1; |
| private LayerType type; |
| private String defaultName; |
| private String prefix; |
| |
| public Builder setCost(int nodeCost) { |
| this.cost = nodeCost; |
| return this; |
| } |
| |
| public Builder setPrefix(String nodePrefix) { |
| this.prefix = nodePrefix; |
| return this; |
| } |
| |
| public Builder setType(LayerType nodeType) { |
| this.type = nodeType; |
| return this; |
| } |
| |
| public Builder setDefaultName(String nodeDefaultName) { |
| this.defaultName = nodeDefaultName; |
| return this; |
| } |
| |
| public NodeSchema build() { |
| if (type == null) { |
| throw new HadoopIllegalArgumentException("Type is mandatory for a " + |
| "network topology node layer definition"); |
| } |
| if (cost == -1) { |
| cost = type.getCost(); |
| } |
| return new NodeSchema(type, cost, prefix, defaultName); |
| } |
| } |
| |
| /** |
| * Constructor. |
| * @param type layer type |
| * @param cost layer's default cost |
| * @param prefix layer's prefix |
| * @param defaultName layer's default name is if specified |
| */ |
| public NodeSchema(LayerType type, int cost, String prefix, |
| String defaultName) { |
| this.type = type; |
| this.cost = cost; |
| this.prefix = prefix; |
| this.defaultName = defaultName; |
| } |
| |
| /** |
| * Constructor. This constructor is only used when build NodeSchema from |
| * YAML file. |
| */ |
| public NodeSchema() { |
| this.type = LayerType.INNER_NODE; |
| } |
| |
| public boolean matchPrefix(String name) { |
| if (name == null || name.isEmpty() || prefix == null || prefix.isEmpty()) { |
| return false; |
| } |
| return name.trim().toLowerCase().startsWith(prefix.toLowerCase()); |
| } |
| |
| public LayerType getType() { |
| return this.type; |
| } |
| |
| public void setType(LayerType type) { |
| this.type = type; |
| } |
| |
| public String getPrefix() { |
| return this.prefix; |
| } |
| |
| public void setPrefix(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| public String getDefaultName() { |
| return this.defaultName; |
| } |
| |
| public void setDefaultName(String name) { |
| this.defaultName = name; |
| } |
| |
| public int getCost() { |
| return this.cost; |
| } |
| public void setCost(int cost) { |
| this.cost = cost; |
| } |
| |
| public void setSublayer(List<NodeSchema> sublayer) { |
| this.sublayer = sublayer; |
| } |
| |
| public List<NodeSchema> getSublayer() { |
| return sublayer; |
| } |
| } |