| /** |
| * 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.AtlasException; |
| import org.apache.atlas.catalog.BaseRequest; |
| import org.apache.atlas.catalog.CollectionRequest; |
| import org.apache.atlas.catalog.DefaultTypeSystem; |
| import org.apache.atlas.catalog.EntityResourceProvider; |
| import org.apache.atlas.catalog.EntityTagResourceProvider; |
| import org.apache.atlas.catalog.InstanceRequest; |
| import org.apache.atlas.catalog.Result; |
| import org.apache.atlas.catalog.exception.CatalogException; |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.services.MetadataService; |
| import org.apache.atlas.store.AtlasTypeDefStore; |
| import org.apache.atlas.utils.AtlasPerfTracer; |
| import org.apache.atlas.web.util.Servlets; |
| import org.slf4j.Logger; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| import javax.ws.rs.DELETE; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.POST; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.core.Context; |
| import javax.ws.rs.core.GenericEntity; |
| import javax.ws.rs.core.HttpHeaders; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.UriInfo; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Service which handles API requests for v1 entity resources. |
| */ |
| @Path("v1/entities") |
| @Singleton |
| public class EntityService extends BaseService { |
| private static final Logger PERF_LOG = AtlasPerfTracer.getPerfLogger("rest.EntityService"); |
| |
| private final EntityResourceProvider entityResourceProvider; |
| private final EntityTagResourceProvider entityTagResourceProvider; |
| |
| @Inject |
| public EntityService(MetadataService metadataService, AtlasTypeDefStore typeDefStore) throws AtlasBaseException { |
| DefaultTypeSystem typeSystem = new DefaultTypeSystem(metadataService, typeDefStore); |
| entityResourceProvider = new EntityResourceProvider(typeSystem); |
| entityTagResourceProvider = new EntityTagResourceProvider(typeSystem); |
| } |
| |
| @GET |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response getEntities(@Context HttpHeaders headers, @Context UriInfo ui) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.getEntities()"); |
| } |
| |
| String queryString = decode(getQueryString(ui)); |
| |
| BaseRequest request = new CollectionRequest(Collections.<String, Object>emptyMap(), queryString); |
| Result result = getResources(entityResourceProvider, request); |
| |
| return Response.status(Response.Status.OK).entity(getSerializer().serialize(result, ui)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @GET |
| @Path("{entityId}") |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response getEntity(@Context HttpHeaders headers, |
| @Context UriInfo ui, |
| @PathParam("entityId") String entityId) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.getEntity(" + entityId + ")"); |
| } |
| |
| BaseRequest request = new InstanceRequest(Collections.<String, Object>singletonMap("id", entityId)); |
| Result result = getResource(entityResourceProvider, request); |
| |
| return Response.status(Response.Status.OK).entity(getSerializer().serialize(result, ui)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @GET |
| @Path("{entityId}/tags/{tag}") |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response getEntityTag(@Context HttpHeaders headers, |
| @Context UriInfo ui, |
| @PathParam("entityId") String entityId, |
| @PathParam("tag") String tagName) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.getEntityTag(" + entityId + ", " + tagName + ")"); |
| } |
| |
| Map<String, Object> properties = new HashMap<>(); |
| properties.put("id", entityId); |
| properties.put("name", tagName); |
| Result result = getResource(entityTagResourceProvider, new InstanceRequest(properties)); |
| |
| return Response.status(Response.Status.OK).entity(getSerializer().serialize(result, ui)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @GET |
| @Path("{entityId}/tags") |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response getEntityTags(@Context HttpHeaders headers, |
| @Context UriInfo ui, |
| @PathParam("entityId") String entityGuid) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.getEntityTags(" + entityGuid + ")"); |
| } |
| |
| BaseRequest request = new CollectionRequest(Collections.<String, Object>singletonMap("id", entityGuid), |
| decode(getQueryString(ui))); |
| Result result = getResources(entityTagResourceProvider, request); |
| |
| return Response.status(Response.Status.OK).entity(getSerializer().serialize(result, ui)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @POST |
| @Path("{entityId}/tags/{tag}") |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response tagEntity(String body, |
| @Context HttpHeaders headers, |
| @Context UriInfo ui, |
| @PathParam("entityId") String entityId, |
| @PathParam("tag") String tagName) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.tagEntity(" + entityId + ", " + tagName + ")"); |
| } |
| |
| Map<String, Object> properties = new HashMap<>(); |
| properties.put("id", entityId); |
| properties.put("name", tagName); |
| createResource(entityTagResourceProvider, new InstanceRequest(properties)); |
| |
| return Response.status(Response.Status.CREATED).entity( |
| new Results(ui.getRequestUri().toString(), 201)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @POST |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response tagEntities(String body, |
| @Context HttpHeaders headers, |
| @Context UriInfo ui) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.tagEntities()"); |
| } |
| |
| Map<String, Object> properties = parsePayload(body); |
| |
| if (properties.get("tags") == null || properties.size() != 1) { |
| throw new CatalogException( |
| "Invalid Request, no 'tags' property specified. Creation of entity resource not supported.", 400); |
| |
| } |
| String queryString = decode(getQueryString(ui)); |
| Collection<String> createResults = createResources( |
| entityTagResourceProvider, new CollectionRequest(properties, queryString)); |
| |
| Collection<Results> result = new ArrayList<>(); |
| for (String relativeUrl : createResults) { |
| result.add(new Results(ui.getBaseUri().toString() + relativeUrl, 201)); |
| } |
| |
| return Response.status(Response.Status.CREATED).entity( |
| new GenericEntity<Collection<Results>>(result) { |
| }).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| |
| @DELETE |
| @Path("{entityId}/tags/{tag}") |
| @Produces(Servlets.JSON_MEDIA_TYPE) |
| public Response deleteEntityTag(@Context HttpHeaders headers, |
| @Context UriInfo ui, |
| @PathParam("entityId") String entityId, |
| @PathParam("tag") String tagName) throws CatalogException { |
| AtlasPerfTracer perf = null; |
| try { |
| if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) { |
| perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityService.deleteEntityTag()"); |
| } |
| |
| Map<String, Object> properties = new HashMap<>(); |
| properties.put("id", entityId); |
| properties.put("name", tagName); |
| deleteResource(entityTagResourceProvider, new InstanceRequest(properties)); |
| |
| return Response.status(Response.Status.OK).entity( |
| new Results(ui.getRequestUri().toString(), 200)).build(); |
| } finally { |
| AtlasPerfTracer.log(perf); |
| } |
| } |
| } |