code: /*
   * 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.yarn.server.resourcemanager.monitor.capacity.mockframework;
  
  import org.apache.hadoop.yarn.api.records.Resource;
  import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
  import org.apache.hadoop.yarn.util.resource.Resources;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.util.Map;
  
  import static org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.mockframework.ProportionalCapacityPreemptionPolicyMockFramework.parseResourceFromString;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.when;
  
  class MockNodeLabelsManager {
    private static final Logger LOG = LoggerFactory.getLogger(MockNodeLabelsManager.class);
  
    private String config;
    private final Resource clusterResource;
    private final Map<String, Resource> partitionToResource;
    private final RMNodeLabelsManager nodeLabelsManager;
  
    MockNodeLabelsManager(String config,
        RMNodeLabelsManager nodeLabelsManager,
        Map<String, Resource> partitionToResource) throws IOException {
      this.config = config;
      this.partitionToResource = partitionToResource;
      this.clusterResource = Resources.createResource(0);
      this.nodeLabelsManager = nodeLabelsManager;
      this.parse();
    }
  
    /**
     * Format is:
     * <pre>
     * partition0=total_resource,exclusivity;
     * partition1=total_resource,exclusivity;
     * ...
     * </pre>
     */
    private void parse() throws IOException {
      String[] partitionConfigArr = config.split(";");
      for (String p : partitionConfigArr) {
        String partitionName = p.substring(0, p.indexOf("="));
        Resource res = parseResourceFromString(p.substring(p.indexOf("=") + 1,
            p.indexOf(",")));
        boolean exclusivity =
            Boolean.valueOf(p.substring(p.indexOf(",") + 1));
        when(nodeLabelsManager.getResourceByLabel(eq(partitionName), any(Resource.class)))
            .thenReturn(res);
        when(nodeLabelsManager.isExclusiveNodeLabel(eq(partitionName))).thenReturn(exclusivity);
  
        // add to partition to resource
        partitionToResource.put(partitionName, res);
        LOG.debug("add partition=" + partitionName + " totalRes=" + res
            + " exclusivity=" + exclusivity);
        Resources.addTo(clusterResource, res);
      }
  
      when(nodeLabelsManager.getClusterNodeLabelNames()).thenReturn(
          partitionToResource.keySet());
    }
  
    public Resource getClusterResource() {
      return clusterResource;
    }
  }
  