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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.repository.store.graph.v2.tasks;
  
  import org.apache.atlas.ApplicationProperties;
  import org.apache.atlas.discovery.AtlasDiscoveryService;
  import org.apache.atlas.model.tasks.AtlasTask;
  import org.apache.atlas.repository.Constants.AtlasAuditAgingType;
  import org.apache.atlas.repository.audit.EntityAuditRepository;
  import org.apache.atlas.repository.graphdb.AtlasGraph;
  import org.apache.atlas.tasks.AbstractTask;
  import org.apache.atlas.tasks.TaskFactory;
  import org.apache.atlas.type.AtlasTypeRegistry;
  import org.apache.commons.configuration.Configuration;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.stereotype.Component;
  
  import javax.inject.Inject;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import static org.apache.atlas.repository.Constants.PROPERTY_KEY_GUIDS_TO_AGEOUT_BY_CUSTOM;
  import static org.apache.atlas.repository.Constants.PROPERTY_KEY_GUIDS_TO_AGEOUT_BY_DEFAULT;
  import static org.apache.atlas.repository.Constants.PROPERTY_KEY_GUIDS_TO_SWEEPOUT;
  
  @Component
  public class AuditReductionTaskFactory implements TaskFactory {
      private static final Logger LOG = LoggerFactory.getLogger(AuditReductionTaskFactory.class);
  
      public static final  int    MAX_PENDING_TASKS_ALLOWED;
      public static final  String ATLAS_AUDIT_REDUCTION                  = "ATLAS_AUDIT_REDUCTION";
      public static final  String ATLAS_AUDIT_REDUCTION_ENTITY_RETRIEVAL = "AUDIT_REDUCTION_ENTITY_RETRIEVAL";
  
      public static final Map<AtlasAuditAgingType, String> AGING_TYPE_PROPERTY_KEY_MAP = new HashMap<>();
  
      private static final int           MAX_PENDING_TASKS_ALLOWED_DEFAULT = 50;
      private static final String        MAX_PENDING_TASKS_ALLOWED_KEY     = "atlas.audit.reduction.max.pending.tasks";
      private static final List<String>  SUPPORTED_TYPES                   = new ArrayList<>(Arrays.asList(ATLAS_AUDIT_REDUCTION, ATLAS_AUDIT_REDUCTION_ENTITY_RETRIEVAL));
  
      private final EntityAuditRepository auditRepository;
      private final AtlasGraph            graph;
      private final AtlasDiscoveryService discoveryService;
      private final AtlasTypeRegistry     typeRegistry;
  
      @Inject
      public AuditReductionTaskFactory(EntityAuditRepository auditRepository, AtlasGraph graph, AtlasDiscoveryService discoveryService, AtlasTypeRegistry typeRegistry) {
          this.auditRepository  = auditRepository;
          this.graph            = graph;
          this.discoveryService = discoveryService;
          this.typeRegistry     = typeRegistry;
      }
  
      @Override
      public AbstractTask create(AtlasTask task) {
          String taskType = task.getType();
          String taskGuid = task.getGuid();
  
          switch (taskType) {
              case ATLAS_AUDIT_REDUCTION:
                  return new AuditReductionTask(task, auditRepository, graph);
  
              case ATLAS_AUDIT_REDUCTION_ENTITY_RETRIEVAL:
                  return new AuditReductionEntityRetrievalTask(task, graph, discoveryService, typeRegistry);
  
              default:
                  LOG.warn("Type: {} - {} not found!. The task will be ignored.", taskType, taskGuid);
                  return null;
          }
      }
  
      @Override
      public List<String> getSupportedTypes() {
          return SUPPORTED_TYPES;
      }
  
      static {
          Configuration configuration = null;
  
          try {
              configuration = ApplicationProperties.get();
          } catch (Exception e) {
              LOG.info("Failed to load application properties", e);
          }
  
          if (configuration != null) {
              MAX_PENDING_TASKS_ALLOWED = configuration.getInt(MAX_PENDING_TASKS_ALLOWED_KEY, MAX_PENDING_TASKS_ALLOWED_DEFAULT);
          } else {
              MAX_PENDING_TASKS_ALLOWED = MAX_PENDING_TASKS_ALLOWED_DEFAULT;
          }
  
          AGING_TYPE_PROPERTY_KEY_MAP.put(AtlasAuditAgingType.DEFAULT, PROPERTY_KEY_GUIDS_TO_AGEOUT_BY_DEFAULT);
          AGING_TYPE_PROPERTY_KEY_MAP.put(AtlasAuditAgingType.SWEEP, PROPERTY_KEY_GUIDS_TO_SWEEPOUT);
          AGING_TYPE_PROPERTY_KEY_MAP.put(AtlasAuditAgingType.CUSTOM, PROPERTY_KEY_GUIDS_TO_AGEOUT_BY_CUSTOM);
      }
  }
  