| /******************************************************************************* |
| * 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 |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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.olingo.odata2.jpa.processor.api; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| /** |
| * This class provides a thread safe container for accessing Tombstone objects |
| * |
| */ |
| public final class ODataJPATombstoneContext { |
| |
| private static final ThreadLocal<String> deltaToken = new ThreadLocal<String>(); |
| private static final ThreadLocal<Long> deltaTokenUTCTimeStamp = new ThreadLocal<Long>(); |
| private static final ThreadLocal<HashMap<String, List<Object>>> deltas = |
| new ThreadLocal<HashMap<String, List<Object>>>(); |
| |
| public static String getDeltaToken() { |
| return deltaToken.get(); |
| } |
| |
| public static void setDeltaToken(final String token) { |
| deltaToken.set(token); |
| } |
| |
| public static void addToDeltaResult(final Object entity, final String entityName) { |
| HashMap<String, List<Object>> entityDeltaMap = deltas.get(); |
| if (entityDeltaMap == null) { |
| deltas.set(new HashMap<String, List<Object>>()); |
| } |
| entityDeltaMap = deltas.get(); |
| if (entityDeltaMap.get(entityName) == null) { |
| entityDeltaMap.put(entityName, new ArrayList<Object>()); |
| } |
| entityDeltaMap.get(entityName).add(entity); |
| } |
| |
| public static List<Object> getDeltaResult(final String entityName) { |
| HashMap<String, List<Object>> entityDeltaMap = deltas.get(); |
| if (entityDeltaMap != null) { |
| return entityDeltaMap.get(entityName); |
| } else { |
| return null; |
| } |
| } |
| |
| public static void cleanup() { |
| deltas.remove(); |
| deltaToken.remove(); |
| deltaTokenUTCTimeStamp.remove(); |
| } |
| |
| public static Long getDeltaTokenUTCTimeStamp() { |
| Long timestamp = deltaTokenUTCTimeStamp.get(); |
| |
| if (timestamp != null) { |
| return timestamp; |
| } else if (deltaToken.get() != null) { |
| try { |
| timestamp = new Long(Long.parseLong(deltaToken.get())); |
| } catch (NumberFormatException e) { |
| return null; |
| } |
| deltaTokenUTCTimeStamp.set(timestamp); |
| } else { |
| deltaTokenUTCTimeStamp.set(new Long(0L)); |
| } |
| |
| return deltaTokenUTCTimeStamp.get(); |
| } |
| |
| } |