content: /**
   * 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.ui.model.graph;
  
  import com.google.common.collect.Lists;
  import com.google.common.collect.Sets;
  
  import java.util.List;
  import java.util.Set;
  
  /**
   * @author Jark (wuchong.wc@alibaba-inc.com)
   */
  public class TreeNode {
      private String componentId;
      private int layer = -1;
      private List<TreeNode> parents = Lists.newArrayList();
      private List<TreeNode> children = Lists.newArrayList();
      private Set<String> sources = Sets.newHashSet();
      private Set<TreeNode> loopNodes = Sets.newHashSet();
      private int breadth = -1;
  
      public TreeNode(String componentId) {
          this.componentId = componentId;
      }
  
      public Set<TreeNode> getLoopNodes() {
          return loopNodes;
      }
  
      public void setLoopNodes(Set<TreeNode> loopNodes) {
          this.loopNodes = loopNodes;
      }
  
      public boolean addLoopNode(TreeNode node){
          if (loopNodes.contains(node) || node.getLoopNodes().contains(this)){
              return false;
          }else{
              loopNodes.add(node);
              node.getLoopNodes().add(this);
              return true;
          }
      }
  
      public boolean inCircle(TreeNode node){
          return sources.contains(node.componentId) &&
                  node.getSources().contains(componentId);
      }
  
      public void addSource(String src){
          sources.add(src);
      }
  
      public boolean addSources(Set<String> srcs){
          int beforeSize = sources.size();
          sources.addAll(srcs);
          int afterSize = sources.size();
          return beforeSize == afterSize;
      }
  
      public Set<String> getSources() {
          return sources;
      }
  
      public boolean hasChildren(){
          return children.size() > 0;
      }
  
      public void addParent(TreeNode node){
          parents.add(node);
      }
  
      public void addChild(TreeNode node){
          children.add(node);
      }
  
      public String getComponentId() {
          return componentId;
      }
  
      public void setComponentId(String componentId) {
          this.componentId = componentId;
      }
  
      public List<TreeNode> getParents() {
          return parents;
      }
  
      public void setParents(List<TreeNode> parents) {
          this.parents = parents;
      }
  
      public List<TreeNode> getChildren() {
          return children;
      }
  
      public void setChildren(List<TreeNode> children) {
          this.children = children;
      }
  
      public int getLayer() {
          return layer;
      }
  
      public void setLayer(int layer) {
          this.layer = layer;
      }
  
      public boolean isVisited(){
          return layer != -1;
      }
  
      public int getBreadth() {
          return breadth;
      }
  
      public void setBreadth(int breadth) {
          this.breadth = breadth;
      }
  }
  