| /******************************************************************************* |
| * 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.ofbiz.entityext; |
| |
| import java.util.Map; |
| |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.UtilValidate; |
| import org.apache.ofbiz.entity.GenericEntityException; |
| import org.apache.ofbiz.entity.GenericValue; |
| import org.apache.ofbiz.service.DispatchContext; |
| import org.apache.ofbiz.service.ServiceUtil; |
| |
| public class EntityWatchServices { |
| |
| public static final String module = EntityWatchServices.class.getName(); |
| |
| /** |
| * This service is meant to be called through an Entity ECA (EECA) to watch an entity |
| * |
| * @param dctx the dispatch context |
| * @param context the context |
| * @return the result of the service execution |
| */ |
| public static Map<String, Object> watchEntity(DispatchContext dctx, Map<String, ? extends Object> context) { |
| GenericValue newValue = (GenericValue) context.get("newValue"); |
| String fieldName = (String) context.get("fieldName"); |
| |
| if (newValue == null) { |
| return ServiceUtil.returnSuccess(); |
| } |
| |
| GenericValue currentValue = null; |
| try { |
| currentValue = dctx.getDelegator().findOne(newValue.getEntityName(), newValue.getPrimaryKey(), false); |
| } catch (GenericEntityException e) { |
| String errMsg = "Error finding currentValue for primary key [" + newValue.getPrimaryKey() + "]: " + e.toString(); |
| Debug.logError(e, errMsg, module); |
| } |
| |
| if (currentValue != null) { |
| if (UtilValidate.isNotEmpty(fieldName)) { |
| // just watch the field |
| Object currentFieldValue = currentValue.get(fieldName); |
| Object newFieldValue = newValue.get(fieldName); |
| boolean changed = false; |
| if (currentFieldValue != null) { |
| if (!currentFieldValue.equals(newFieldValue)) { |
| changed = true; |
| } |
| } else { |
| if (newFieldValue != null) { |
| changed = true; |
| } |
| } |
| |
| if (changed) { |
| String errMsg = "Watching entity [" + currentValue.getEntityName() + "] field [" + fieldName + "] value changed from [" + currentFieldValue + "] to [" + newFieldValue + "] for pk [" + newValue.getPrimaryKey() + "]"; |
| Debug.logInfo(new Exception(errMsg), errMsg, module); |
| } |
| } else { |
| // watch the whole entity |
| if (!currentValue.equals(newValue)) { |
| String errMsg = "Watching entity [" + currentValue.getEntityName() + "] values changed from [" + currentValue + "] to [" + newValue + "] for pk [" + newValue.getPrimaryKey() + "]"; |
| Debug.logInfo(new Exception(errMsg), errMsg, module); |
| } |
| } |
| } else { |
| if (UtilValidate.isNotEmpty(fieldName)) { |
| // just watch the field |
| Object newFieldValue = newValue.get(fieldName); |
| String errMsg = "Watching entity [" + newValue.getEntityName() + "] field [" + fieldName + "] value changed from [null] to [" + newFieldValue + "] for pk [" + newValue.getPrimaryKey() + "]"; |
| Debug.logInfo(new Exception(errMsg), errMsg, module); |
| } else { |
| // watch the whole entity |
| String errMsg = "Watching entity [" + newValue.getEntityName() + "] values changed from [null] to [" + newValue + "] for pk [" + newValue.getPrimaryKey() + "]"; |
| Debug.logInfo(new Exception(errMsg), errMsg, module); |
| } |
| } |
| |
| return ServiceUtil.returnSuccess(); |
| } |
| } |