/*
* Copyright 2002-2010 the original author or authors.
*
* Licensed 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.springframework.integration.samples.rest.service;
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.integration.samples.rest.domain.Employee;
import org.springframework.integration.samples.rest.domain.EmployeeList;
import org.springframework.security.access.annotation.Secured;
import org.springframework.stereotype.Service;
/**
* EmployeeSearchService.java: This is the default employee search service
* @author Vigil Bose
*/
@Service("employeeSearchService")
public class EmployeeSearchService {
private static Logger logger = Logger.getLogger(EmployeeSearchService.class);
/**
* The API <code>getEmployee()</code> looks up the mapped in coming message header's id param
* and fills the return object with the appropriate employee details. The return
* object is wrapped in Spring Integration Message with response headers filled in.
* This example shows the usage of URL path variables and how the service act on
* those variables.
* @param inMessage
* @return an instance of <code>{@link Message}</code> that wraps <code>{@link EmployeeList}</code>
*/
@Secured("ROLE_REST_HTTP_USER")
public Message<EmployeeList> getEmployee(Message<?> inMessage){
EmployeeList employeeList = new EmployeeList();
Map<String, Object> responseHeaderMap = new HashMap<String, Object>();
try{
MessageHeaders headers = inMessage.getHeaders();
String id = (String)headers.get("employeeId");
boolean isFound;
if (id.equals("1")){
employeeList.getEmployee().add(new Employee(1, "John", "Doe"));
isFound = true;
}else if (id.equals("2")){
employeeList.getEmployee().add(new Employee(2, "Jane", "Doe"));
isFound = true;
}else if (id.equals("0")){
employeeList.getEmployee().add(new Employee(1, "John", "Doe"));
employeeList.getEmployee().add(new Employee(2, "Jane", "Doe"));
isFound = true;
}else{
isFound = false;
}
if (isFound){
setReturnStatusAndMessage("0", "Success", employeeList, responseHeaderMap);
}else{
setReturnStatusAndMessage("2", "Employee Not Found", employeeList, responseHeaderMap);
}
}catch (Throwable e){
setReturnStatusAndMessage("1", "System Error", employeeList, responseHeaderMap);
logger.error("System error occured :"+e);
}
Message<EmployeeList> message = new GenericMessage<EmployeeList>(employeeList, responseHeaderMap);
return message;
}
/**
* The API <code>setReturnStatusAndMessage()</code> sets the return status and return message
* in the return message payload and its header.
* @param status
* @param message
* @param employeeList
* @param responseHeaderMap
*/
private void setReturnStatusAndMessage(String status,
String message,
EmployeeList employeeList,
Map<String, Object> responseHeaderMap){
employeeList.setReturnStatus(status);
employeeList.setReturnStatusMsg(message);
responseHeaderMap.put("Return-Status", status);
responseHeaderMap.put("Return-Status-Msg", message);
}
}