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 org.apache.ambari.server.state.quicklinks;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
  import com.fasterxml.jackson.annotation.JsonInclude;
  import com.fasterxml.jackson.annotation.JsonProperty;
  
  @JsonInclude(JsonInclude.Include.NON_NULL)
  @JsonIgnoreProperties(ignoreUnknown = true)
  public class QuickLinksConfiguration{
    @JsonProperty("protocol")
    private Protocol protocol;
  
    @JsonProperty("links")
    private List<Link> links;
  
    public Protocol getProtocol() {
      return protocol;
    }
  
    public void setProtocol(Protocol protocol) {
      this.protocol = protocol;
    }
  
    public List<Link> getLinks() {
      return links;
    }
  
    public void setLinks(List<Link> links) {
      this.links = links;
    }
  
    public void mergeWithParent(QuickLinksConfiguration parent) {
      if (parent == null) {
        return;
      }
  
      //protocol uses override merge, if the child has it, then use it
      if(protocol == null)
        protocol = parent.getProtocol();
  
      if (links == null) {
        links = parent.getLinks();
      } else if (parent.getLinks() != null) {
        links = mergeLinks(parent.getLinks(), links);
      }
    }
  
    private List<Link> mergeLinks(List<Link> parentLinks, List<Link> childLinks) {
      Map<String, Link> mergedLinks = new HashMap<>();
  
      for (Link parentLink : parentLinks) {
        mergedLinks.put(parentLink.getName(), parentLink);
      }
  
      for (Link childLink : childLinks) {
        if (childLink.getName() != null) {
          if(childLink.isRemoved()){
            mergedLinks.remove(childLink.getName());
          } else {
            Link parentLink = mergedLinks.get(childLink.getName());
            childLink.mergeWithParent(parentLink);
            mergedLinks.put(childLink.getName(), childLink);
          }
        }
      }
      return new ArrayList<>(mergedLinks.values());
    }
  }