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   * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.atlas.repository.migration;
  
  import com.google.inject.Inject;
  import org.apache.atlas.TestModules;
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.model.typedef.AtlasRelationshipDef;
  import org.apache.atlas.repository.Constants;
  import org.apache.atlas.repository.graphdb.janus.migration.RelationshipCacheGenerator;
  import org.apache.atlas.store.AtlasTypeDefStore;
  import org.apache.atlas.type.AtlasRelationshipType;
  import org.apache.atlas.type.AtlasTypeRegistry;
  import org.apache.commons.lang.StringUtils;
  import org.testng.annotations.BeforeClass;
  import org.testng.annotations.Guice;
  import org.testng.annotations.Test;
  
  import java.io.IOException;
  import java.util.Map;
  
  import static org.apache.atlas.model.typedef.AtlasRelationshipDef.PropagateTags.ONE_TO_TWO;
  import static org.apache.atlas.model.typedef.AtlasRelationshipDef.PropagateTags.TWO_TO_ONE;
  import static org.apache.atlas.utils.TestLoadModelUtils.loadModelFromJson;
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertTrue;
  
  @Guice(modules = TestModules.TestOnlyModule.class)
  public class RelationshipCacheGeneratorTest {
      @Inject
      private AtlasTypeDefStore typeDefStore;
  
      @Inject
      private AtlasTypeRegistry typeRegistry;
  
      @BeforeClass
      public void setup() throws IOException, AtlasBaseException {
          loadModelFromJson("0000-Area0/0010-base_model.json", typeDefStore, typeRegistry);
          loadModelFromJson("1000-Hadoop/1030-hive_model.json", typeDefStore, typeRegistry);
      }
  
      @Test
      public void createLookup() {
          final String processInputKey  = "__Process.inputs";
          final String processOutputKey = "__Process.outputs";
  
          Map<String, RelationshipCacheGenerator.TypeInfo> cache = RelationshipCacheGenerator.get(typeRegistry);
  
          assertEquals(cache.size(), getLegacyAttributeCount() - 1);
  
          for (Map.Entry<String, RelationshipCacheGenerator.TypeInfo> entry : cache.entrySet()) {
              assertTrue(StringUtils.isNotEmpty(entry.getKey()));
              assertTrue(entry.getKey().startsWith(Constants.INTERNAL_PROPERTY_KEY_PREFIX), entry.getKey());
          }
  
          assertEquals(cache.get(processInputKey).getTypeName(), "dataset_process_inputs");
          assertEquals(cache.get(processInputKey).getPropagateTags(), TWO_TO_ONE);
  
          assertEquals(cache.get(processOutputKey).getTypeName(), "process_dataset_outputs");
          assertEquals(cache.get(processOutputKey).getPropagateTags(), ONE_TO_TWO);
      }
  
      private int getLegacyAttributeCount() {
          int count = 0;
  
          for (AtlasRelationshipType rt : typeRegistry.getAllRelationshipTypes()) {
              AtlasRelationshipDef rd = rt.getRelationshipDef();
  
              if (rd.getEndDef1().getIsLegacyAttribute()) {
                  count++;
              }
  
              if (rd.getEndDef2().getIsLegacyAttribute()) {
                  count++;
              }
          }
  
          return count;
      }
  }
  