| /** |
| * 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; |
| |
| import org.apache.atlas.metrics.Metrics; |
| import org.apache.atlas.model.instance.AtlasEntity.AtlasEntityWithExtInfo; |
| import org.apache.atlas.model.instance.AtlasObjectId; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.*; |
| |
| public class RequestContextV1 { |
| private static final Logger LOG = LoggerFactory.getLogger(RequestContextV1.class); |
| |
| private static final ThreadLocal<RequestContextV1> CURRENT_CONTEXT = new ThreadLocal<>(); |
| |
| private Set<AtlasObjectId> createdEntityIds = new LinkedHashSet<>(); |
| private Set<AtlasObjectId> updatedEntityIds = new LinkedHashSet<>(); |
| private Set<AtlasObjectId> deletedEntityIds = new LinkedHashSet<>(); |
| private Map<String, AtlasEntityWithExtInfo> entityCacheV2 = new HashMap<>(); |
| |
| private String user; |
| private final long requestTime; |
| |
| private Metrics metrics = new Metrics(); |
| |
| private RequestContextV1() { |
| requestTime = System.currentTimeMillis(); |
| } |
| |
| //To handle gets from background threads where createContext() is not called |
| //createContext called for every request in the filter |
| public static RequestContextV1 get() { |
| RequestContextV1 ret = CURRENT_CONTEXT.get(); |
| |
| if (ret == null) { |
| ret = new RequestContextV1(); |
| CURRENT_CONTEXT.set(ret); |
| } |
| |
| return ret; |
| } |
| |
| public static void clear() { |
| RequestContextV1 instance = CURRENT_CONTEXT.get(); |
| |
| if (instance != null) { |
| if (instance.entityCacheV2 != null) { |
| instance.entityCacheV2.clear(); |
| } |
| } |
| |
| CURRENT_CONTEXT.remove(); |
| } |
| |
| public String getUser() { |
| return user; |
| } |
| |
| public void setUser(String user) { |
| this.user = user; |
| } |
| |
| public void recordEntityCreate(Collection<AtlasObjectId> createdEntityIds) { |
| this.createdEntityIds.addAll(createdEntityIds); |
| } |
| |
| public void recordEntityCreate(AtlasObjectId createdEntityId) { |
| this.createdEntityIds.add(createdEntityId); |
| } |
| |
| public void recordEntityUpdate(Collection<AtlasObjectId> updatedEntityIds) { |
| this.updatedEntityIds.addAll(updatedEntityIds); |
| } |
| |
| public void recordEntityUpdate(AtlasObjectId entityId) { |
| this.updatedEntityIds.add(entityId); |
| } |
| |
| public void recordEntityDelete(AtlasObjectId entityId) { |
| deletedEntityIds.add(entityId); |
| } |
| |
| /** |
| * Adds the specified instance to the cache |
| * |
| */ |
| public void cache(AtlasEntityWithExtInfo entity) { |
| if (entity != null && entity.getEntity() != null && entity.getEntity().getGuid() != null) { |
| entityCacheV2.put(entity.getEntity().getGuid(), entity); |
| } |
| } |
| |
| public Collection<AtlasObjectId> getCreatedEntityIds() { |
| return createdEntityIds; |
| } |
| |
| public Collection<AtlasObjectId> getUpdatedEntityIds() { |
| return updatedEntityIds; |
| } |
| |
| public Collection<AtlasObjectId> getDeletedEntityIds() { |
| return deletedEntityIds; |
| } |
| |
| /** |
| * Checks if an instance with the given guid is in the cache for this request. Either returns the instance |
| * or null if it is not in the cache. |
| * |
| * @param guid the guid to find |
| * @return Either the instance or null if it is not in the cache. |
| */ |
| public AtlasEntityWithExtInfo getInstanceV2(String guid) { |
| return entityCacheV2.get(guid); |
| } |
| |
| public long getRequestTime() { |
| return requestTime; |
| } |
| |
| public boolean isDeletedEntity(AtlasObjectId entityId) { |
| return deletedEntityIds.contains(entityId); |
| } |
| |
| public static Metrics getMetrics() { |
| return get().metrics; |
| } |
| } |