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
  34 import javax.servlet.http.HttpServletRequest;
  35 import javax.servlet.http.HttpServletResponse;
  36
  37 import org.onap.policy.common.logging.eelf.PolicyLogger;
  38 import org.onap.policy.common.logging.flexlogger.FlexLogger;
  39 import org.onap.policy.common.logging.flexlogger.Logger;
  40 import org.onap.policy.pap.xacml.rest.components.CreateBRMSRuleTemplate;
  41 import org.onap.policy.pap.xacml.rest.components.CreateNewMicroServiceModel;
  42 import org.onap.policy.pap.xacml.rest.components.CreateNewOptimizationModel;
  43
  44 public class ImportService {
  45     private static final Logger logger = FlexLogger.getLogger(ImportService.class);
  46     private static String errorMessage = "Error in reading in file from API call";
  47     private static String errorMsg = "error";
  48     private static String operation = "operation";
  49     private static String importHeader = "import";
  50     private static String service = "service";
  51     private static String extractDir = "ExtractDir";
  52     private static String successMessage = "success";
  53     private static String invalidServiceName = "Invalid ServiceName";
  54     private static final String REGEX = "[0-9a-zA-Z._ ]*";
  55     private static final String MISSING = "missing";
  56
  57     public void doImportMicroServicePut(HttpServletRequest request, HttpServletResponse response) {
  58         String importServiceCreation = request.getParameter("importService");
  59         String fileName = request.getParameter("fileName");
  60         String version = request.getParameter("version");
  61         String serviceName = request.getParameter("serviceName");
  62
  63         if (serviceName == null || serviceName.isEmpty() || !serviceName.matches(REGEX)) {
  64             response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
  65             response.addHeader(errorMsg, MISSING);
  66             response.addHeader(operation, importHeader);
  67             response.addHeader(service, invalidServiceName);
  68             return;
  69         }
  70
  71         String description = request.getParameter("description");
  72         Map<String, String> successMap = new HashMap<>();
  73         if (("BRMSPARAM").equals(importServiceCreation)) {
  74             StringBuilder builder = new StringBuilder();
  75             int ch;
  76             try {
  77                 while ((ch = request.getInputStream().read()) != -1) {
  78                     builder.append((char) ch);
  79                 }
  80             } catch (IOException e) {
  81                 logger.error(e);
  82                 PolicyLogger.error(errorMessage);
  83                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  84                 response.addHeader(errorMsg, MISSING);
  85                 response.addHeader(operation, importHeader);
  86                 response.addHeader(service, serviceName);
  87             }
  88             CreateBRMSRuleTemplate brmsRuleTemplate = new CreateBRMSRuleTemplate();
  89             successMap = brmsRuleTemplate.addRule(builder.toString(), serviceName, description, "API");
  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 =
 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("Exception Occured while closing the input/output stream" + e);
 145                         }
 146                     }
 147                 }
 148
 149                 newMS = new CreateNewMicroServiceModel(fileName, serviceName, "API", version, randomID);
 150
 151                 successMap = newMS.addValuesToNewModel(type);
 152
 153                 if (successMap.containsKey(successMessage)) {
 154                     successMap.clear();
 155                     successMap = newMS.saveImportService();
 156                 }
 157             }
 158         } else if (("OPTIMIZATION").equals(importServiceCreation)) {
 159             CreateNewOptimizationModel newOOF = null;
 160             String randomID = UUID.randomUUID().toString();
 161             if (fileName != null) {
 162                 File extracDir = new File(extractDir);
 163                 if (!extracDir.exists()) {
 164                     extracDir.mkdirs();
 165                 }
 166
 167                 String type = ".yml";
 168
 169                 // get the request content into a String
 170                 String yml = null;
 171                 try (java.util.Scanner scanner = new java.util.Scanner(request.getInputStream());) {
 172                     scanner.useDelimiter("\\A");
 173                     yml = scanner.hasNext() ? scanner.next() : "";
 174                 } catch (IOException e1) {
 175                     logger.error(e1);
 176                     PolicyLogger.error(errorMessage);
 177                     return;
 178                 }
 179                 PolicyLogger.info("Request from API to import new Optimization Service Model");
 180                 try (Writer writer = new BufferedWriter(new OutputStreamWriter(
 181                         new FileOutputStream(extractDir + File.separator + randomID + type), "utf-8"))) {
 182                     writer.write(yml);
 183                 } catch (IOException e) {
 184                     logger.error(e);
 185                     PolicyLogger.error(errorMessage);
 186                     return;
 187                 }
 188
 189                 newOOF = new CreateNewOptimizationModel(fileName, serviceName, "API Import Service", version, randomID);
 190                 successMap = newOOF.addValuesToNewModel();
 191                 if (successMap.containsKey(successMessage)) {
 192                     successMap.clear();
 193                     successMap = newOOF.saveImportService();
 194                 }
 195             }
 196         }
 197
 198         // return a response to the PAP
 199         if (successMap.containsKey(successMessage)) {
 200             response.setStatus(HttpServletResponse.SC_OK);
 201             response.addHeader("successMapKey", successMessage);
 202             response.addHeader(operation, importHeader);
 203             response.addHeader(service, serviceName);
 204         } else if (successMap.containsKey("DBError")) {
 205             if (successMap.get("DBError").contains("EXISTS")) {
 206                 response.setStatus(HttpServletResponse.SC_CONFLICT);
 207                 response.addHeader(service, serviceName);
 208                 response.addHeader(errorMsg, "modelExistsDB");
 209             } else {
 210                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 211                 response.addHeader(errorMsg, "importDB");
 212             }
 213             response.addHeader(operation, importHeader);
 214             response.addHeader(service, serviceName);
 215         } else if (successMap.get(errorMsg).contains("MISSING")) {
 216             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 217             response.addHeader(errorMsg, MISSING);
 218             response.addHeader(operation, importHeader);
 219             response.addHeader(service, serviceName);
 220         } else if (successMap.get(errorMsg).contains("VALIDATION")) {
 221             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 222             response.addHeader(errorMsg, "validation");
 223             response.addHeader(operation, importHeader);
 224             response.addHeader(service, serviceName);
 225         }
 226     }
 227
 228 }