ecomp-portal-BE-common/src/main/java/org/onap/portalapp/portal/scheduler/SchedulerRestInterface.java

   1 /*-
   2  * ============LICENSE_START==========================================
   3  * ONAP Portal
   4  * ===================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ===================================================================
   7  *
   8  * Unless otherwise specified, all software contained herein is licensed
   9  * under the Apache License, Version 2.0 (the "License");
  10  * you may not use this software except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *             http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  *
  21  * Unless otherwise specified, all documentation contained herein is licensed
  22  * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
  23  * you may not use this documentation except in compliance with the License.
  24  * You may obtain a copy of the License at
  25  *
  26  *             https://creativecommons.org/licenses/by/4.0/
  27  *
  28  * Unless required by applicable law or agreed to in writing, documentation
  29  * distributed under the License is distributed on an "AS IS" BASIS,
  30  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  31  * See the License for the specific language governing permissions and
  32  * limitations under the License.
  33  *
  34  * ============LICENSE_END============================================
  35  *
  36  *
  37  */
  38 package org.onap.portalapp.portal.scheduler;
  39
  40 import java.util.Collections;
  41 import java.util.Date;
  42
  43 import javax.security.auth.login.CredentialException;
  44 import javax.ws.rs.core.MediaType;
  45 import javax.ws.rs.core.MultivaluedHashMap;
  46
  47 import org.apache.commons.codec.binary.Base64;
  48 import org.apache.commons.lang.StringUtils;
  49 import org.apache.cxf.jaxrs.client.WebClient;
  50 import org.apache.cxf.jaxrs.impl.ResponseImpl;
  51 import org.eclipse.jetty.util.security.Password;
  52 import org.json.simple.JSONObject;
  53 import org.onap.portalapp.portal.logging.format.EPAppMessagesEnum;
  54 import org.onap.portalapp.portal.logging.logic.EPLogUtil;
  55 import org.onap.portalapp.portal.scheduler.restobjects.RestObject;
  56 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
  57 import org.springframework.http.HttpStatus;
  58 import org.springframework.stereotype.Service;
  59 import org.springframework.web.client.HttpClientErrorException;
  60
  61 import com.google.gson.Gson;
  62 import com.google.gson.GsonBuilder;
  63 import com.google.gson.JsonDeserializer;
  64
  65 import lombok.NoArgsConstructor;
  66
  67 @SuppressWarnings("MalformedFormatString")
  68 @Service
  69 @NoArgsConstructor
  70 public class SchedulerRestInterface implements SchedulerRestInterfaceIfc {
  71         private static final String APPLICATION_JSON = "application/json";
  72         private static final String PASSWORD_IS_EMPTY = "Password is Empty";
  73         private static final String HTTP_CLIENT_ERROR = " HttpClientErrorException: Exception For the POST  ."
  74                                                                                                         + " MethodName: %APPLICATION_JSON, Url: %APPLICATION_JSON";
  75
  76         private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SchedulerRestInterface.class);
  77         private static WebClient client = null;
  78         private static Gson gson = null;
  79
  80         private MultivaluedHashMap<String, String> commonHeaders;
  81
  82         private static void init() {
  83                 logger.debug(EELFLoggerDelegate.debugLogger, "initializing");
  84                 GsonBuilder builder = new GsonBuilder();
  85
  86                 // Register an adapter to manage the date types as long values
  87                 builder.registerTypeAdapter(Date.class,
  88                         (JsonDeserializer<Date>) (json, typeOfT, context) -> new Date(json.getAsJsonPrimitive().getAsLong()));
  89
  90                 gson = builder.create();
  91         }
  92
  93         public void initRestClient(String URI) {
  94                 logger.debug(EELFLoggerDelegate.debugLogger, "Starting to initialize rest client");
  95
  96                 init();
  97
  98                 final String username;
  99                 final String password;
 100
 101                 /* Setting user name based on properties */
 102                 String retrievedUsername = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_USER_NAME_VAL);
 103                 if (retrievedUsername.isEmpty()) {
 104                         username = "";
 105                 } else {
 106                         username = retrievedUsername;
 107                 }
 108
 109                 /* Setting password based on properties */
 110                 String retrievedPassword = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_PASSWORD_VAL);
 111                 if (retrievedPassword.isEmpty()) {
 112                         password = StringUtils.EMPTY;
 113                 } else {
 114                         if (retrievedPassword.contains("OBF:")) {
 115                                 password = Password.deobfuscate(retrievedPassword);
 116                         } else {
 117                                 password = retrievedPassword;
 118                         }
 119                 }
 120                 try {
 121                         if (StringUtils.isBlank(password)) {
 122                                 throw new CredentialException(PASSWORD_IS_EMPTY);
 123                         }
 124                 } catch (Exception ex) {
 125                         logger.error(EELFLoggerDelegate.errorLogger, "Unable to initialize rest client", ex);
 126                 }
 127                 String authString = username + ":" + password;
 128                 byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 129                 String authStringEnc = new String(authEncBytes);
 130
 131                 commonHeaders = new MultivaluedHashMap<>();
 132                 commonHeaders.put("Authorization", Collections.singletonList(("Basic " + authStringEnc)));
 133
 134                 //              try {
 135                 //                      if (!username.isEmpty()) {
 136                 //
 137                 //                              client = HttpBasicClient.getClient();
 138                 //                      } else {
 139                 //
 140                 //                              client = HttpsBasicClient.getClient();
 141                 //                      }
 142                 //              } catch (Exception e) {
 143                 //                      logger.debug(EELFLoggerDelegate.debugLogger, "Unable to initialize rest client",e.getMessage());
 144                 //
 145                 //              }
 146
 147                 client = WebClient.create(URI);
 148                 client.type(MediaType.APPLICATION_JSON).accept(MediaType.APPLICATION_JSON);
 149                 //client.path("");
 150                 client.headers(commonHeaders);
 151
 152                 logger.debug(EELFLoggerDelegate.debugLogger, "Client Initialized");
 153
 154         }
 155
 156         @SuppressWarnings("unchecked")
 157         public <T> void Get(T t, String sourceId, String path,
 158                         org.onap.portalapp.portal.scheduler.restobjects.RestObject<T> restObject) {
 159
 160                 String methodName = "Get";
 161                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 162
 163                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR GET : ", url);
 164                 try {
 165                         initRestClient(url);
 166
 167
 168                         //final Response cres = client.target(url).request().accept(APPLICATION_JSON).headers(commonHeaders).get();
 169                         final ResponseImpl cres = (ResponseImpl)client.get();
 170
 171                         logger.debug(EELFLoggerDelegate.debugLogger, "The implemenation class of Response : ", cres.getClass().getName());
 172                         int status = cres.getStatus();
 173                         restObject.setStatusCode(status);
 174
 175                         if (cres.getEntity() != null) {
 176                                 try {
 177                                         String str = (cres).readEntity(String.class);
 178                                         if (t.getClass().isAssignableFrom(String.class)) {
 179                                                 t = (T) str;
 180
 181                                         } else {
 182                                                 t = (T) gson.fromJson(str, t.getClass());
 183                                         }
 184
 185                                 } catch (Exception e) {
 186                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 187                                 }
 188                         } else {
 189                                 t = null;
 190                                 restObject.set(null);
 191                         }
 192
 193                         if ("".equals(t)) {
 194                                 restObject.set(null);
 195                         } else {
 196                                 restObject.set(t);
 197                         }
 198                 } catch (HttpClientErrorException e) {
 199                         String message = String.format(
 200                                         HTTP_CLIENT_ERROR, methodName, url);
 201                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 202                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 203                 } catch (Exception e) {
 204                         String message = String.format("Exception For the POST . MethodName: %APPLICATION_JSON, Url: %APPLICATION_JSON", methodName, url);
 205
 206                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 207                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 208
 209                         throw e;
 210
 211                 }
 212
 213         }
 214
 215         @SuppressWarnings("unchecked")
 216         public <T> void Post(T t, JSONObject requestDetails, String path, RestObject<T> restObject) {
 217
 218                 String methodName = "Post";
 219                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 220                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR POST : " + url);
 221
 222                 try {
 223
 224                         initRestClient(url);
 225
 226                         // Change the content length
 227                         final ResponseImpl cres = (ResponseImpl)client.post(requestDetails.toJSONString());
 228
 229                         if (cres != null && cres.getEntity() != null) {
 230
 231                                 try {
 232                                         String str = (cres).readEntity(String.class);
 233                                         if (t.getClass().isAssignableFrom(String.class)) {
 234                                                 t = (T) str;
 235
 236                                         } else {
 237                                                 t = (T) gson.fromJson(str, t.getClass());
 238                                         }
 239
 240                                 } catch (Exception e) {
 241                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 242                                 }
 243                                 restObject.set(t);
 244                         } else {
 245                                 restObject.set(null);
 246                         }
 247
 248                         int status = cres != null ? cres.getStatus() : 0;
 249                         restObject.setStatusCode(status);
 250
 251                         if (status >= 200 && status <= 299) {
 252                                 String message = String.format(" REST api POST was successful!", methodName);
 253                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 254
 255                         } else {
 256                                 String message = String.format(" FAILED with http status  . MethodName: %APPLICATION_JSON, Status: %APPLICATION_JSON, Url: %APPLICATION_JSON",
 257                                                 methodName, status, url);
 258                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 259                         }
 260
 261                 } catch (HttpClientErrorException e) {
 262                         String message = String.format(
 263                                         HTTP_CLIENT_ERROR, methodName, url);
 264                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 265                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 266                 } catch (Exception e) {
 267                         String message = String.format(
 268                                         HTTP_CLIENT_ERROR, methodName, url);
 269                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 270                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 271                         throw e;
 272                 }
 273         }
 274
 275         @Override
 276         public void logRequest(JSONObject requestDetails) {
 277                 throw new UnsupportedOperationException();
 278         }
 279
 280
 281 }