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) 2017-2019 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
  21 package org.onap.policy.pap.xacml.rest.service;
  22
  23 import java.io.BufferedWriter;
  24 import java.io.File;
  25 import java.io.FileOutputStream;
  26 import java.io.IOException;
  27 import java.io.InputStream;
  28 import java.io.OutputStreamWriter;
  29 import java.io.Writer;
  30 import java.util.HashMap;
  31 import java.util.Map;
  32 import java.util.UUID;
  33 import javax.servlet.http.HttpServletRequest;
  34 import javax.servlet.http.HttpServletResponse;
  35 import org.onap.policy.common.logging.eelf.PolicyLogger;
  36 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  37 import org.onap.policy.common.logging.flexlogger.Logger;
  38 import org.onap.policy.pap.xacml.rest.components.CreateBRMSRuleTemplate;
  39 import org.onap.policy.pap.xacml.rest.components.CreateNewMicroServiceModel;
  40 import org.onap.policy.pap.xacml.rest.components.CreateNewOptimizationModel;
  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     private static final String MISSING = "missing";
  54
  55     public void doImportMicroServicePut(HttpServletRequest request, HttpServletResponse response) {
  56         String importServiceCreation = request.getParameter("importService");
  57         String fileName = request.getParameter("fileName");
  58         String version = request.getParameter("version");
  59         String serviceName = request.getParameter("serviceName");
  60
  61         if (serviceName == null || serviceName.isEmpty() || !serviceName.matches(REGEX)) {
  62             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
  63             response.addHeader(errorMsg, MISSING);
  64             response.addHeader(operation, importHeader);
  65             response.addHeader(service, invalidServiceName);
  66             return;
  67         }
  68
  69         String description = request.getParameter("description");
  70         Map<String, String> successMap = new HashMap<>();
  71         if (("BRMSPARAM").equals(importServiceCreation)) {
  72             StringBuilder builder = new StringBuilder();
  73             int ch;
  74             try {
  75                 while ((ch = request.getInputStream().read()) != -1) {
  76                     builder.append((char) ch);
  77                 }
  78             } catch (IOException e) {
  79                 logger.error(e);
  80                 PolicyLogger.error(errorMessage);
  81                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  82                 response.addHeader(errorMsg, MISSING);
  83                 response.addHeader(operation, importHeader);
  84                 response.addHeader(service, serviceName);
  85             }
  86             CreateBRMSRuleTemplate brmsRuleTemplate = new CreateBRMSRuleTemplate();
  87             successMap =
  88                     brmsRuleTemplate.addRule(builder.toString(), serviceName, description, "API");
  89         } else if (("MICROSERVICE").equals(importServiceCreation)) {
  90             CreateNewMicroServiceModel newMS = null;
  91             String randomID = UUID.randomUUID().toString();
  92             String type = ".xmi";
  93             if (fileName != null) {
  94                 File extracDir = new File(extractDir);
  95                 if (!extracDir.exists()) {
  96                     extracDir.mkdirs();
  97                 }
  98                 if (fileName.contains(".xmi") || fileName.contains(".yml")) {
  99                     if (fileName.contains(".yml")) {
 100                         type = ".yml";
 101                     }
 102                     // get the request content into a String
 103                     String xmi = null;
 104                     java.util.Scanner scanner;
 105                     try {
 106                         scanner = new java.util.Scanner(request.getInputStream());
 107                         scanner.useDelimiter("\\A");
 108                         xmi = scanner.hasNext() ? scanner.next() : "";
 109                         scanner.close();
 110                     } catch (IOException e1) {
 111                         logger.error(e1);
 112                         PolicyLogger.error(errorMessage);
 113                         return;
 114                     }
 115                     PolicyLogger.info("Request from API to import new Service");
 116                     try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 117                             new FileOutputStream(extractDir + File.separator + randomID + type),
 118                             "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 =
 128                             new FileOutputStream(extractDir + File.separator + randomID + ".zip")) {
 129                         inputStream = request.getInputStream();
 130                         byte[] buffer = new byte[4096];
 131                         int bytesRead = -1;
 132                         while ((bytesRead = inputStream.read(buffer)) != -1) {
 133                             outputStream.write(buffer, 0, bytesRead);
 134                         }
 135                     } catch (IOException e) {
 136                         PolicyLogger.error("Error in reading in Zip File from API call" + e);
 137                         return;
 138                     } finally {
 139                         try {
 140                             if (inputStream != null) {
 141                                 inputStream.close();
 142                             }
 143                         } catch (IOException e) {
 144                             PolicyLogger.error(
 145                                     "Exception Occured while closing the input/output stream" + e);
 146                         }
 147                     }
 148                 }
 149
 150                 newMS = new CreateNewMicroServiceModel(fileName, serviceName, "API", version,
 151                         randomID);
 152
 153                 successMap = newMS.addValuesToNewModel(type);
 154
 155                 if (successMap.containsKey(successMessage)) {
 156                     successMap.clear();
 157                     successMap = newMS.saveImportService();
 158                 }
 159             }
 160         } else if (("OPTIMIZATION").equals(importServiceCreation)) {
 161             CreateNewOptimizationModel newOOF = null;
 162             String randomID = UUID.randomUUID().toString();
 163             if (fileName != null) {
 164                 File extracDir = new File(extractDir);
 165                 if (!extracDir.exists()) {
 166                     extracDir.mkdirs();
 167                 }
 168
 169                 String type = ".yml";
 170
 171                 // get the request content into a String
 172                 String yml = null;
 173                 try (java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());) {
 174                     scanner.useDelimiter("\\A");
 175                     yml = scanner.hasNext() ? scanner.next() : "";
 176                 } catch (IOException e1) {
 177                     logger.error(e1);
 178                     PolicyLogger.error(errorMessage);
 179                     return;
 180                 }
 181                 PolicyLogger.info("Request from API to import new Optimization Service Model");
 182                 try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 183                         new FileOutputStream(extractDir + File.separator + randomID + type),
 184                         "utf-8"))) {
 185                     writer.write(yml);
 186                 } catch (IOException e) {
 187                     logger.error(e);
 188                     PolicyLogger.error(errorMessage);
 189                     return;
 190                 }
 191
 192                 newOOF = new CreateNewOptimizationModel(fileName, serviceName, "API Import Service",
 193                         version, randomID);
 194                 successMap = newOOF.addValuesToNewModel();
 195                 if (successMap.containsKey(successMessage)) {
 196                     successMap.clear();
 197                     successMap = newOOF.saveImportService();
 198                 }
 199             }
 200         }
 201
 202         // return a response to the PAP
 203         if (successMap.containsKey(successMessage)) {
 204             response.setStatus(HttpServletResponse.SC_OK);
 205             response.addHeader("successMapKey", successMessage);
 206             response.addHeader(operation, importHeader);
 207             response.addHeader(service, serviceName);
 208         } else if (successMap.containsKey("DBError")) {
 209             if (successMap.get("DBError").contains("EXISTS")) {
 210                 response.setStatus(HttpServletResponse.SC_CONFLICT);
 211                 response.addHeader(service, serviceName);
 212                 response.addHeader(errorMsg, "modelExistsDB");
 213             } else {
 214                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 215                 response.addHeader(errorMsg, "importDB");
 216             }
 217             response.addHeader(operation, importHeader);
 218             response.addHeader(service, serviceName);
 219         } else if (successMap.get(errorMsg).contains("MISSING")) {
 220             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 221             response.addHeader(errorMsg, MISSING);
 222             response.addHeader(operation, importHeader);
 223             response.addHeader(service, serviceName);
 224         } else if (successMap.get(errorMsg).contains("VALIDATION")) {
 225             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 226             response.addHeader(errorMsg, "validation");
 227             response.addHeader(operation, importHeader);
 228             response.addHeader(service, serviceName);
 229         }
 230     }
 231
 232 }