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/*
* Copyright (c) 2019 TOYOTA MOTOR CORPORATION
*
* 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 app.market.utils.rest;
import java.util.Map;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.RestTemplate;
import app.market.utils.SpringWebUtil;
import app.market.utils.constants.Constants;
import app.market.utils.json.JsonResult;
import app.market.utils.property.KeysConstants;
import app.market.utils.property.MessageUtil;
import app.market.utils.webservice.ApiParam;
public class RestTemplateUtil {
private RestTemplate restTemplate;
public RestTemplateUtil() {
this.restTemplate = new RestTemplate();
}
/**
*
* @param url
* @param model
* @return
* @throws Exception
*/
public String post(String url, Object model, HttpSession session) throws Exception {
HttpHeaders requestHeaders = new HttpHeaders();
Class<?> clx = model.getClass();
//String token = SpringWebUtil.getRequest().getParameter( "token" );
String token = (String) session.getAttribute(Constants.SESSION_TOKEN);
String servletPath = SpringWebUtil.getRequest().getServletPath();
if ( StringUtils.isEmpty( token ) || StringUtils.isEmpty( servletPath ) )
throw new HttpClientErrorException( HttpStatus.UNAUTHORIZED,
MessageUtil.getPropertites( KeysConstants.STATUS_UNAUTHORIZED ) );
requestHeaders.add( Constants.TOKEN_AUTHORIZATION, token );
//requestHeaders.add( Constants.TOKEN_AUTHORIZATION_RESOURCE, servletPath );
HttpEntity<Object> requestEntity = new HttpEntity<Object>( clx.getClass().forName( clx.getName() ).cast( model ), requestHeaders );
String result = restTemplate.postForObject( url, requestEntity, String.class );
return result;
}
/**
* Restful GET
* @param url
* @param params
* @return
* @throws Exception
*/
public String get(String url,HttpSession session, String... params) throws Exception {
HttpEntity<Object> requestEntity = getRequestEntity(null, session);
ResponseEntity<String> result = restTemplate.exchange( url, HttpMethod.GET, requestEntity, String.class, params );
return result.getBody();
}
/**
* getQueryParam
* @param url
* @param queryParams
* @return
* @throws Exception
*/
public String getByQueryParam(String url, Map<String, Object> queryParams, HttpSession session) throws Exception {
HttpEntity<Object> requestEntity = getRequestEntity(null, session);
url = addParamURL(url, queryParams);
ResponseEntity<String> result = restTemplate.exchange(url, HttpMethod.GET, requestEntity, String.class, queryParams);
return result.getBody();
}
/**
* Restful GET (download)
* @param url
* @param param
* @return
* @throws Exception
*/
public ResponseEntity<byte[]> download(String url, Map<String, Object> queryParams, HttpSession session) throws Exception {
HttpEntity<Object> requestEntity = getRequestEntity(null, session);
url = addParamURL(url, queryParams);
ResponseEntity<byte[]> exchange = restTemplate.exchange(url, HttpMethod.GET, requestEntity, byte[].class);
return exchange;
}
/**
* Restful Post
* @param restUserSelectloginuser
* @param postData
* @return
* @throws Exception
*/
public ResponseEntity<String> Post(String restUserSelectloginuser, Object postData, HttpSession session) throws Exception {
ResponseEntity<String> rEntity = restTemplate.postForEntity( restUserSelectloginuser, postData, String.class);
return rEntity;
}
/**
* Restful POST(update)
* @param url
* @param param
* @param class1
* @return
* @throws ClassNotFoundException
*/
public String post(String url, MultiValueMap<String, Object> queryParam, Class<String> classz, String[] pathParam, HttpSession session)
throws ClassNotFoundException {
HttpEntity<Object> requestEntity = getRequestEntity(queryParam, session);
String result = null;
if(pathParam == null){
result = restTemplate.postForObject( url, requestEntity, String.class);
}else{
result = restTemplate.postForObject( url, requestEntity, String.class, pathParam);
}
return result;
}
/**
* Restful DELETE
* @param url
* @param id
* @return
* @throws Exception
*/
public String delete(String url, String id, HttpSession session) throws Exception {
String json = "";
HttpEntity<Object> requestEntity = getRequestEntity(id, session);
ResponseEntity<String> exchange = restTemplate.exchange(url, HttpMethod.DELETE, requestEntity, String.class, id);
json = exchange.getBody();
return json;
}
/*===========================================================================================================================
* PRIVATE METHOD
===========================================================================================================================*/
/**
* getRequestEntity
* @param body
* @param session
* @return
*/
private HttpEntity<Object> getRequestEntity(Object body, HttpSession session)
{
HttpHeaders requestHeaders = new HttpHeaders();
//String token = SpringWebUtil.getRequest().getParameter(ApiParam.API_RESPONSE_TOKEN);
String token = (String) session.getAttribute(Constants.SESSION_TOKEN);
if(token == null) token = "";
String servletPath = SpringWebUtil.getRequest().getServletPath();
if (StringUtils.isEmpty(servletPath)) {
throw new HttpClientErrorException(HttpStatus.UNAUTHORIZED,
MessageUtil.getPropertites(KeysConstants.STATUS_UNAUTHORIZED));
}
requestHeaders.add(Constants.TOKEN_AUTHORIZATION, token);
//requestHeaders.add(Constants.TOKEN_AUTHORIZATION_RESOURCE, servletPath);
HttpEntity<Object> requestEntity = new HttpEntity<Object>( body, requestHeaders );
return requestEntity;
}
private String addParamURL(String url, Map<String, Object> queryParams ){
url += "?";
for (String key : queryParams.keySet()) {
if (!url.endsWith("?")) {
url += "&";
}
Object val = queryParams.get(key);
if(val != null){
url += key + "=" + val.toString();
}
}
return url;
}
}
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