ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/rest/service/ImportService.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP-PAP-REST
   4  * ================================================================================
   5  * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.policy.pap.xacml.rest.service;
  21
  22 import java.io.BufferedWriter;
  23 import java.io.File;
  24 import java.io.FileOutputStream;
  25 import java.io.IOException;
  26 import java.io.InputStream;
  27 import java.io.OutputStreamWriter;
  28 import java.io.Writer;
  29 import java.util.HashMap;
  30 import java.util.Map;
  31 import java.util.UUID;
  32
  33 import javax.servlet.http.HttpServletRequest;
  34 import javax.servlet.http.HttpServletResponse;
  35
  36 import org.onap.policy.common.logging.eelf.PolicyLogger;
  37 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  38 import org.onap.policy.common.logging.flexlogger.Logger;
  39 import org.onap.policy.pap.xacml.rest.components.CreateBRMSRuleTemplate;
  40 import org.onap.policy.pap.xacml.rest.components.CreateNewMicroServiceModel;
  41
  42 public class ImportService {
  43         private static final Logger logger = FlexLogger.getLogger(ImportService.class);
  44         private static String errorMessage = "Error in reading in file from API call";
  45         private static String errorMsg  = "error";
  46         private static String operation = "operation";
  47         private static String importHeader = "import";
  48         private static String service = "service";
  49         private static String extractDir = "ExtractDir";
  50         private static String successMessage = "success";
  51         private static String invalidServiceName = "Invalid ServiceName";
  52         private static final String REGEX = "[0-9a-zA-Z._ ]*";
  53
  54         public void doImportMicroServicePut(HttpServletRequest request, HttpServletResponse response) {
  55                 String importServiceCreation = request.getParameter("importService");
  56                 String fileName = request.getParameter("fileName");
  57                 String version = request.getParameter("version");
  58                 String serviceName = request.getParameter("serviceName");
  59
  60                 if(serviceName == null || serviceName.isEmpty() || !serviceName.matches(REGEX)){
  61                         response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
  62                         response.addHeader(errorMsg, "missing");
  63                         response.addHeader(operation, importHeader);
  64                         response.addHeader(service, invalidServiceName);
  65                         return;
  66                 }
  67
  68                 String description = request.getParameter("description");
  69                 Map<String, String> successMap = new HashMap<>();
  70                 if(("BRMSPARAM").equals(importServiceCreation)){
  71                         StringBuilder builder = new StringBuilder();
  72                         int ch;
  73                         try {
  74                                 while((ch = request.getInputStream().read()) != -1){
  75                                     builder.append((char)ch);
  76                                 }
  77                         } catch (IOException e) {
  78                                 logger.error(e);
  79                                 PolicyLogger.error(errorMessage);
  80                                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  81                                 response.addHeader(errorMsg, "missing");
  82                                 response.addHeader(operation, importHeader);
  83                                 response.addHeader(service, serviceName);
  84                         }
  85                         CreateBRMSRuleTemplate brmsRuleTemplate = new CreateBRMSRuleTemplate();
  86                         successMap = brmsRuleTemplate.addRule(builder.toString(), serviceName, description, "API");
  87                 }
  88                 else if(("MICROSERVICE").equals(importServiceCreation)){
  89                         CreateNewMicroServiceModel newMS = null;
  90                         String randomID = UUID.randomUUID().toString();
  91                         if ( fileName != null) {
  92                                 File extracDir = new File(extractDir);
  93                                 if (!extracDir.exists()){
  94                                         extracDir.mkdirs();
  95                                 }
  96                                 if (fileName.contains(".xmi")){
  97                                         // get the request content into a String
  98                                         String xmi = null;
  99                                         java.util.Scanner scanner;
 100                                         try {
 101                                                 scanner = new java.util.Scanner(request.getInputStream());
 102                                                 scanner.useDelimiter("\\A");
 103                                                 xmi =  scanner.hasNext() ? scanner.next() : "";
 104                                                 scanner.close();
 105                                         } catch (IOException e1) {
 106                                                 logger.error(e1);
 107                                                 PolicyLogger.error(errorMessage);
 108                                                 return;
 109                                         }
 110                                         PolicyLogger.info("XML request from API for import new Service");
 111                                         try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 112                                                         new FileOutputStream(extractDir + File.separator + randomID+".xmi"), "utf-8"))) {
 113                                                 writer.write(xmi);
 114                                         } catch (IOException e) {
 115                                                 logger.error(e);
 116                                                 PolicyLogger.error(errorMessage);
 117                                                 return;
 118                                         }
 119                                 }else{
 120                                         InputStream inputStream = null;
 121                                         try(FileOutputStream outputStream = new FileOutputStream(extractDir + File.separator + randomID+".zip")) {
 122                                                 inputStream = request.getInputStream();
 123                                                 byte[] buffer = new byte[4096];
 124                                                 int bytesRead = -1 ;
 125                                                 while ((bytesRead = inputStream.read(buffer)) != -1) {
 126                                                         outputStream.write(buffer, 0, bytesRead) ;
 127                                                 }
 128                                         } catch (IOException e) {
 129                                                 PolicyLogger.error("Error in reading in Zip File from API call"+e);
 130                                                 return;
 131                                         }finally{
 132                                                 try {
 133                                                         if(inputStream != null){
 134                                                                 inputStream.close();
 135                                                         }
 136                                                 } catch (IOException e) {
 137                                                         PolicyLogger.error("Exception Occured while closing the input/output stream"+e);
 138                                                 }
 139                                         }
 140                                 }
 141                                 newMS =  new CreateNewMicroServiceModel(fileName, serviceName, "API", version, randomID);
 142                                 successMap = newMS.addValuesToNewModel();
 143                                 if (successMap.containsKey(successMessage)) {
 144                                         successMap.clear();
 145                                         successMap = newMS.saveImportService();
 146                                 }
 147                         }
 148                 }
 149
 150                 // return a response to the PAP
 151                 if (successMap.containsKey(successMessage)) {
 152                         response.setStatus(HttpServletResponse.SC_OK);
 153                         response.addHeader("successMapKey", successMessage);
 154                         response.addHeader(operation, importHeader);
 155                         response.addHeader(service, serviceName);
 156                 } else if (successMap.containsKey("DBError")) {
 157                         if (successMap.get("DBError").contains("EXISTS")){
 158                                 response.setStatus(HttpServletResponse.SC_CONFLICT);
 159                                 response.addHeader(service, serviceName);
 160                                 response.addHeader(errorMsg, "modelExistsDB");
 161                         }else{
 162                                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 163                                 response.addHeader(errorMsg, "importDB");
 164                         }
 165                         response.addHeader(operation, importHeader);
 166                         response.addHeader(service, serviceName);
 167                 }else if (successMap.get(errorMsg).contains("MISSING")){
 168                         response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 169                         response.addHeader(errorMsg, "missing");
 170                         response.addHeader(operation, importHeader);
 171                         response.addHeader(service, serviceName);
 172                 }else if (successMap.get(errorMsg).contains("VALIDATION")){
 173                         response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 174                         response.addHeader(errorMsg, "validation");
 175                         response.addHeader(operation, importHeader);
 176                         response.addHeader(service, serviceName);
 177                 }
 178         }
 179
 180 }