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.patches;
  
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.listener.ChangedTypeDefs;
  import org.apache.atlas.model.typedef.AtlasEntityDef;
  import org.apache.atlas.repository.graph.SolrIndexHelper;
  import org.apache.atlas.type.AtlasTypeRegistry;
  import org.apache.commons.collections.CollectionUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.ArrayList;
  import java.util.Collection;
  
  import static org.apache.atlas.model.patches.AtlasPatch.PatchStatus.APPLIED;
  
  /**
   * This patch handler installs free text request handlers for already running Atlas instances.
   * --instances that were deployed with older versions.
   */
  public class FreeTextRequestHandlerPatch extends AtlasPatchHandler {
      private static final Logger LOG = LoggerFactory.getLogger(FreeTextRequestHandlerPatch.class);
  
      private static final String PATCH_ID          = "JAVA_PATCH_0000_003";
      private static final String PATCH_DESCRIPTION = "Creates Solr request handler for use in free-text searches";
  
      private final PatchContext context;
  
      public FreeTextRequestHandlerPatch(PatchContext context) {
          super(context.getPatchRegistry(), PATCH_ID, PATCH_DESCRIPTION);
  
          this.context = context;
      }
  
      @Override
      public void apply() throws AtlasBaseException {
          AtlasTypeRegistry          typeRegistry = context.getTypeRegistry();
          Collection<AtlasEntityDef> entityDefs   = typeRegistry.getAllEntityDefs();
  
          if (CollectionUtils.isNotEmpty(entityDefs)) {
              SolrIndexHelper indexHelper     = new SolrIndexHelper(typeRegistry);
              ChangedTypeDefs changedTypeDefs = new ChangedTypeDefs(null, new ArrayList<>(entityDefs), null);
  
              indexHelper.onChange(changedTypeDefs);
          }
  
          setStatus(APPLIED);
  
          LOG.info("FreeTextRequestHandlerPatch.apply(): patchId={}, status={}", getPatchId(), getStatus());
      }
  }
  