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 import org.onap.policy.pap.xacml.rest.components.CreateNewOptimizationModel;
  42
  43 public class ImportService {
  44     private static final Logger logger = FlexLogger.getLogger(ImportService.class);
  45     private static String errorMessage = "Error in reading in file from API call";
  46     private static String errorMsg      = "error";
  47     private static String operation = "operation";
  48     private static String importHeader = "import";
  49     private static String service = "service";
  50     private static String extractDir = "ExtractDir";
  51     private static String successMessage = "success";
  52     private static String invalidServiceName = "Invalid ServiceName";
  53     private static final String REGEX = "[0-9a-zA-Z._ ]*";
  54     private static final String MISSING = "missing";
  55
  56     public void doImportMicroServicePut(HttpServletRequest request, HttpServletResponse response) {
  57         String importServiceCreation = request.getParameter("importService");
  58         String fileName = request.getParameter("fileName");
  59         String version = request.getParameter("version");
  60         String serviceName = request.getParameter("serviceName");
  61
  62         if(serviceName == null || serviceName.isEmpty() || !serviceName.matches(REGEX)){
  63             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
  64             response.addHeader(errorMsg, MISSING);
  65             response.addHeader(operation, importHeader);
  66             response.addHeader(service, invalidServiceName);
  67             return;
  68         }
  69
  70         String description = request.getParameter("description");
  71         Map<String, String> successMap = new HashMap<>();
  72         if(("BRMSPARAM").equals(importServiceCreation)){
  73             StringBuilder builder = new StringBuilder();
  74             int ch;
  75             try {
  76                 while((ch = request.getInputStream().read()) != -1){
  77                     builder.append((char)ch);
  78                 }
  79             } catch (IOException e) {
  80                 logger.error(e);
  81                 PolicyLogger.error(errorMessage);
  82                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  83                 response.addHeader(errorMsg, MISSING);
  84                 response.addHeader(operation, importHeader);
  85                 response.addHeader(service, serviceName);
  86             }
  87             CreateBRMSRuleTemplate brmsRuleTemplate = new CreateBRMSRuleTemplate();
  88             successMap = brmsRuleTemplate.addRule(builder.toString(), serviceName, description, "API");
  89         }
  90         else if(("MICROSERVICE").equals(importServiceCreation)){
  91             CreateNewMicroServiceModel newMS = null;
  92             String randomID = UUID.randomUUID().toString();
  93             String type = ".xmi";
  94             if ( fileName != null) {
  95                 File extracDir = new File(extractDir);
  96                 if (!extracDir.exists()){
  97                     extracDir.mkdirs();
  98                 }
  99                 if (fileName.contains(".xmi") || fileName.contains(".yml")){
 100                     if(fileName.contains(".yml")){
 101                         type = ".yml";
 102                     }
 103                     // get the request content into a String
 104                     String xmi = null;
 105                     java.util.Scanner scanner;
 106                     try {
 107                         scanner = new java.util.Scanner(request.getInputStream());
 108                         scanner.useDelimiter("\\A");
 109                         xmi =  scanner.hasNext() ? scanner.next() : "";
 110                         scanner.close();
 111                     } catch (IOException e1) {
 112                         logger.error(e1);
 113                         PolicyLogger.error(errorMessage);
 114                         return;
 115                     }
 116                     PolicyLogger.info("Request from API to import new Service");
 117                     try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 118                             new FileOutputStream(extractDir + File.separator + randomID+type), "utf-8"))) {
 119                         writer.write(xmi);
 120                     } catch (IOException e) {
 121                         logger.error(e);
 122                         PolicyLogger.error(errorMessage);
 123                         return;
 124                     }
 125                 }else{
 126                     InputStream inputStream = null;
 127                     try(FileOutputStream outputStream = new FileOutputStream(extractDir + File.separator + randomID+".zip")) {
 128                         inputStream = request.getInputStream();
 129                         byte[] buffer = new byte[4096];
 130                         int bytesRead = -1 ;
 131                         while ((bytesRead = inputStream.read(buffer)) != -1) {
 132                             outputStream.write(buffer, 0, bytesRead) ;
 133                         }
 134                     } catch (IOException e) {
 135                         PolicyLogger.error("Error in reading in Zip File from API call"+e);
 136                         return;
 137                     }finally{
 138                         try {
 139                             if(inputStream != null){
 140                                 inputStream.close();
 141                             }
 142                         } catch (IOException e) {
 143                             PolicyLogger.error("Exception Occured while closing the input/output stream"+e);
 144                         }
 145                     }
 146                 }
 147
 148                 newMS =  new CreateNewMicroServiceModel(fileName, serviceName, "API", version, randomID);
 149
 150                 successMap = newMS.addValuesToNewModel(type);
 151
 152                 if (successMap.containsKey(successMessage)) {
 153                     successMap.clear();
 154                     successMap = newMS.saveImportService();
 155                 }
 156             }
 157         } else if(("OPTIMIZATION").equals(importServiceCreation)){
 158             CreateNewOptimizationModel newOOF = null;
 159             String randomID = UUID.randomUUID().toString();
 160             if ( fileName != null) {
 161                 File extracDir = new File(extractDir);
 162                 if (!extracDir.exists()){
 163                     extracDir.mkdirs();
 164                 }
 165
 166                 String type = ".yml";
 167
 168                 // get the request content into a String
 169                 String yml = null;
 170                 try (java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());){
 171                     scanner.useDelimiter("\\A");
 172                     yml =  scanner.hasNext() ? scanner.next() : "";
 173                 } catch (IOException e1) {
 174                     logger.error(e1);
 175                     PolicyLogger.error(errorMessage);
 176                     return;
 177                 }
 178                 PolicyLogger.info("Request from API to import new Optimization Service Model");
 179                 try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 180                         new FileOutputStream(extractDir + File.separator + randomID+type), "utf-8"))) {
 181                     writer.write(yml);
 182                 } catch (IOException e) {
 183                     logger.error(e);
 184                     PolicyLogger.error(errorMessage);
 185                     return;
 186                 }
 187
 188                 newOOF =  new CreateNewOptimizationModel(fileName, serviceName, "API Import Service", version, randomID);
 189                 successMap = newOOF.addValuesToNewModel();
 190                 if (successMap.containsKey(successMessage)) {
 191                     successMap.clear();
 192                     successMap = newOOF.saveImportService();
 193                 }
 194             }
 195         }
 196
 197         // return a response to the PAP
 198         if (successMap.containsKey(successMessage)) {
 199             response.setStatus(HttpServletResponse.SC_OK);
 200             response.addHeader("successMapKey", successMessage);
 201             response.addHeader(operation, importHeader);
 202             response.addHeader(service, serviceName);
 203         } else if (successMap.containsKey("DBError")) {
 204             if (successMap.get("DBError").contains("EXISTS")){
 205                 response.setStatus(HttpServletResponse.SC_CONFLICT);
 206                 response.addHeader(service, serviceName);
 207                 response.addHeader(errorMsg, "modelExistsDB");
 208             }else{
 209                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 210                 response.addHeader(errorMsg, "importDB");
 211             }
 212             response.addHeader(operation, importHeader);
 213             response.addHeader(service, serviceName);
 214         }else if (successMap.get(errorMsg).contains("MISSING")){
 215             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 216             response.addHeader(errorMsg, MISSING);
 217             response.addHeader(operation, importHeader);
 218             response.addHeader(service, serviceName);
 219         }else if (successMap.get(errorMsg).contains("VALIDATION")){
 220             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 221             response.addHeader(errorMsg, "validation");
 222             response.addHeader(operation, importHeader);
 223             response.addHeader(service, serviceName);
 224         }
 225     }
 226
 227 }