001/* 002 * Copyright 2006-2007 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.batch.sample.domain.trade; 018 019import static org.springframework.batch.sample.domain.trade.CustomerOperation.*; 020 021import org.springframework.batch.item.ItemProcessor; 022 023/** 024 * @author Lucas Ward 025 * 026 */ 027public class CustomerUpdateProcessor implements ItemProcessor<CustomerUpdate, CustomerUpdate>{ 028 029 private CustomerDao customerDao; 030 private InvalidCustomerLogger invalidCustomerLogger; 031 032 @Override 033 public CustomerUpdate process(CustomerUpdate item) throws Exception { 034 035 if(item.getOperation() == DELETE){ 036 //delete is not supported 037 invalidCustomerLogger.log(item); 038 return null; 039 } 040 041 CustomerCredit customerCredit = customerDao.getCustomerByName(item.getCustomerName()); 042 043 if(item.getOperation() == ADD && customerCredit == null){ 044 return item; 045 } 046 else if(item.getOperation() == ADD && customerCredit != null){ 047 //veto processing 048 invalidCustomerLogger.log(item); 049 return null; 050 } 051 052 if(item.getOperation() == UPDATE && customerCredit != null){ 053 return item; 054 } 055 else if(item.getOperation() == UPDATE && customerCredit == null){ 056 //veto processing 057 invalidCustomerLogger.log(item); 058 return null; 059 } 060 061 //if an item makes it through all these checks it can be assumed to be bad, logged, and skipped 062 invalidCustomerLogger.log(item); 063 return null; 064 } 065 066 public void setCustomerDao(CustomerDao customerDao) { 067 this.customerDao = customerDao; 068 } 069 070 public void setInvalidCustomerLogger( 071 InvalidCustomerLogger invalidCustomerLogger) { 072 this.invalidCustomerLogger = invalidCustomerLogger; 073 } 074 075}