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.web.resources;
  
  import org.apache.atlas.AtlasErrorCode;
  import org.apache.atlas.discovery.AtlasLineageService;
  import org.apache.atlas.exception.AtlasBaseException;
  import org.apache.atlas.model.instance.AtlasEntity;
  import org.apache.atlas.model.lineage.AtlasLineageInfo;
  import org.apache.atlas.model.lineage.AtlasLineageInfo.LineageDirection;
  import org.apache.atlas.repository.store.graph.AtlasEntityStore;
  import org.apache.atlas.type.AtlasEntityType;
  import org.apache.atlas.type.AtlasTypeRegistry;
  import org.apache.atlas.utils.AtlasPerfTracer;
  import org.apache.atlas.v1.model.lineage.DataSetLineageResponse;
  import org.apache.atlas.v1.model.lineage.SchemaResponse;
  import org.apache.atlas.web.util.LineageUtils;
  import org.apache.atlas.web.util.Servlets;
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.stereotype.Service;
  
  import javax.inject.Inject;
  import javax.inject.Singleton;
  import javax.servlet.http.HttpServletRequest;
  import javax.ws.rs.Consumes;
  import javax.ws.rs.GET;
  import javax.ws.rs.Path;
  import javax.ws.rs.PathParam;
  import javax.ws.rs.Produces;
  import javax.ws.rs.WebApplicationException;
  import javax.ws.rs.core.Context;
  import javax.ws.rs.core.Response;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.apache.atlas.v1.model.lineage.SchemaResponse.SchemaDetails;
  
  /**
   * Jersey Resource for Hive Table Lineage.
   */
  @Path("lineage/hive")
  @Singleton
  @Service
  @Deprecated
  public class DataSetLineageResource {
      private static final Logger LOG      = LoggerFactory.getLogger(DataSetLineageResource.class);
      private static final Logger PERF_LOG = AtlasPerfTracer.getPerfLogger("rest.DataSetLineageResource");
  
      private final AtlasLineageService atlasLineageService;
      private final AtlasTypeRegistry   typeRegistry;
      private final AtlasEntityStore    atlasEntityStore;
  
      @Inject
      public DataSetLineageResource(final AtlasLineageService atlasLineageService, final AtlasTypeRegistry typeRegistry, final AtlasEntityStore atlasEntityStore) {
          this.atlasLineageService = atlasLineageService;
          this.typeRegistry        = typeRegistry;
          this.atlasEntityStore    = atlasEntityStore;
      }
  
      /**
       * Returns the inputs graph for a given entity.
       *
       * @param tableName table name
       */
      @GET
      @Path("table/{tableName}/inputs/graph")
      @Consumes(Servlets.JSON_MEDIA_TYPE)
      @Produces(Servlets.JSON_MEDIA_TYPE)
      public DataSetLineageResponse inputsGraph(@Context HttpServletRequest request, @PathParam("tableName") String tableName) {
          LOG.debug("==> DataSetLineageResource.inputsGraph({})", tableName);
  
          DataSetLineageResponse ret  = new DataSetLineageResponse();
          AtlasPerfTracer        perf = null;
  
          try {
              if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
                  perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "DataSetLineageResource.inputsGraph(tableName=" + tableName + ")");
              }
  
              String guid = getGuid(tableName);
  
              AtlasLineageInfo lineageInfo = atlasLineageService.getAtlasLineageInfo(guid, LineageDirection.INPUT, -1);
              ret.setTableName(tableName);
              ret.setRequestId(Servlets.getRequestId());
              ret.setResults(LineageUtils.toLineageStruct(lineageInfo, typeRegistry));
  
              return ret;
          } catch (IllegalArgumentException e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
          } catch (WebApplicationException e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
  
              throw e;
          } catch (Throwable e) {
              LOG.error("Unable to get lineage inputs graph for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.INTERNAL_SERVER_ERROR));
          } finally {
              AtlasPerfTracer.log(perf);
          }
      }
  
      /**
       * Returns the outputs graph for a given entity.
       *
       * @param tableName table name
       */
      @GET
      @Path("table/{tableName}/outputs/graph")
      @Consumes(Servlets.JSON_MEDIA_TYPE)
      @Produces(Servlets.JSON_MEDIA_TYPE)
      public DataSetLineageResponse outputsGraph(@Context HttpServletRequest request, @PathParam("tableName") String tableName) {
          LOG.debug("==> DataSetLineageResource.outputsGraph({})", tableName);
  
          DataSetLineageResponse ret  = new DataSetLineageResponse();
          AtlasPerfTracer        perf = null;
  
          try {
              if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
                  perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "DataSetLineageResource.outputsGraph(tableName=" + tableName + ")");
              }
  
              String guid = getGuid(tableName);
  
              AtlasLineageInfo lineageInfo = atlasLineageService.getAtlasLineageInfo(guid, LineageDirection.OUTPUT, -1);
  
              ret.setTableName(tableName);
              ret.setRequestId(Servlets.getRequestId());
              ret.setResults(LineageUtils.toLineageStruct(lineageInfo, typeRegistry));
  
              return ret;
          } catch (IllegalArgumentException e) {
              LOG.error("Unable to get lineage outputs graph for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
          } catch (WebApplicationException e) {
              LOG.error("Unable to get lineage outputs graph for table {}", tableName, e);
  
              throw e;
          } catch (Throwable e) {
              LOG.error("Unable to get lineage outputs graph for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.INTERNAL_SERVER_ERROR));
          } finally {
              AtlasPerfTracer.log(perf);
          }
      }
  
      /**
       * Return the schema for the given tableName.
       *
       * @param tableName table name
       */
      @GET
      @Path("table/{tableName}/schema")
      @Consumes(Servlets.JSON_MEDIA_TYPE)
      @Produces(Servlets.JSON_MEDIA_TYPE)
      public SchemaResponse schema(@Context HttpServletRequest request, @PathParam("tableName") String tableName) {
          LOG.debug("==> DataSetLineageResource.schema({})", tableName);
  
          AtlasPerfTracer perf = null;
          SchemaResponse  ret  = new SchemaResponse();
  
          try {
              if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
                  perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "DataSetLineageResource.schema(tableName=" + tableName + ")");
              }
  
              SchemaDetails schemaDetails = atlasLineageService.getSchemaForHiveTableByName(tableName);
  
              ret.setRequestId(Servlets.getRequestId());
              ret.setTableName(tableName);
              ret.setResults(schemaDetails);
  
              return ret;
          } catch (IllegalArgumentException e) {
              LOG.error("Unable to get schema for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
          } catch (WebApplicationException e) {
              LOG.error("Unable to get schema for table {}", tableName, e);
  
              throw e;
          } catch (Throwable e) {
              LOG.error("Unable to get schema for table {}", tableName, e);
  
              throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.INTERNAL_SERVER_ERROR));
          } finally {
              AtlasPerfTracer.log(perf);
          }
      }
  
      private String getGuid(String tableName) throws AtlasBaseException {
          if (StringUtils.isEmpty(tableName)) {
              // TODO: Fix the error code if mismatch
              throw new AtlasBaseException(AtlasErrorCode.BAD_REQUEST);
          }
  
          Map<String, Object> lookupAttributes = new HashMap<>();
  
          lookupAttributes.put("qualifiedName", tableName);
  
          AtlasEntityType                    entityType = typeRegistry.getEntityTypeByName("hive_table");
          AtlasEntity.AtlasEntityWithExtInfo hiveTable  = atlasEntityStore.getByUniqueAttributes(entityType, lookupAttributes);
  
          if (hiveTable != null) {
              return hiveTable.getEntity().getGuid();
          } else {
              throw new AtlasBaseException(AtlasErrorCode.INSTANCE_NOT_FOUND, tableName);
          }
      }
  }
  