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.lang.reflect.Type;
  41 import java.util.Collections;
  42 import java.util.Date;
  43
  44 import javax.security.auth.login.CredentialException;
  45 import javax.ws.rs.client.Client;
  46 import javax.ws.rs.client.Entity;
  47 import javax.ws.rs.core.MediaType;
  48 import javax.ws.rs.core.MultivaluedHashMap;
  49 import javax.ws.rs.core.Response;
  50
  51 import org.apache.commons.codec.binary.Base64;
  52 import org.apache.commons.lang.StringUtils;
  53 import org.apache.cxf.jaxrs.impl.ResponseImpl;
  54 import org.eclipse.jetty.util.security.Password;
  55 import org.json.simple.JSONObject;
  56 import org.onap.portalapp.portal.logging.format.EPAppMessagesEnum;
  57 import org.onap.portalapp.portal.logging.logic.EPLogUtil;
  58 import org.onap.portalapp.portal.scheduler.client.HttpBasicClient;
  59 import org.onap.portalapp.portal.scheduler.client.HttpsBasicClient;
  60 import org.onap.portalapp.portal.scheduler.restobjects.RestObject;
  61 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
  62 import org.springframework.http.HttpStatus;
  63 import org.springframework.stereotype.Service;
  64 import org.springframework.web.client.HttpClientErrorException;
  65
  66 import com.fasterxml.jackson.databind.ObjectMapper;
  67 import com.google.gson.Gson;
  68 import com.google.gson.GsonBuilder;
  69 import com.google.gson.JsonDeserializationContext;
  70 import com.google.gson.JsonDeserializer;
  71 import com.google.gson.JsonElement;
  72 import com.google.gson.JsonParseException;
  73
  74 @Service
  75 public class SchedulerRestInterface implements SchedulerRestInterfaceIfc {
  76
  77         private static final String PASSWORD_IS_EMPTY = "Password is Empty";
  78
  79         private static Client client = null;
  80
  81         private MultivaluedHashMap<String, Object> commonHeaders;
  82
  83         /** The logger. */
  84         static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SchedulerRestInterface.class);
  85
  86         public SchedulerRestInterface() {
  87                 super();
  88         }
  89
  90         Gson gson = null;
  91
  92         private final ObjectMapper mapper = new ObjectMapper();
  93
  94         private void init() {
  95                 logger.debug(EELFLoggerDelegate.debugLogger, "initializing");
  96                 GsonBuilder builder = new GsonBuilder();
  97
  98                 // Register an adapter to manage the date types as long values
  99                 builder.registerTypeAdapter(Date.class, new JsonDeserializer<Date>() {
 100                         public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
 101                                         throws JsonParseException {
 102                                 return new Date(json.getAsJsonPrimitive().getAsLong());
 103                         }
 104                 });
 105
 106                 gson = builder.create();
 107         }
 108
 109         public void initRestClient() {
 110                 logger.debug(EELFLoggerDelegate.debugLogger, "Starting to initialize rest client");
 111
 112                 init();
 113
 114                 final String username;
 115                 final String password;
 116
 117                 String methodName = "initRestClient";
 118                 /* Setting user name based on properties */
 119                 String retrievedUsername = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_USER_NAME_VAL);
 120                 if (retrievedUsername.isEmpty()) {
 121                         username = "";
 122                 } else {
 123                         username = retrievedUsername;
 124                 }
 125
 126                 /* Setting password based on properties */
 127                 String retrievedPassword = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_PASSWORD_VAL);
 128                 if (retrievedPassword.isEmpty()) {
 129                         password = StringUtils.EMPTY;
 130                 } else {
 131                         if (retrievedPassword.contains("OBF:")) {
 132                                 password = Password.deobfuscate(retrievedPassword);
 133                         } else {
 134                                 password = retrievedPassword;
 135                         }
 136                 }
 137                 try {
 138                         if (StringUtils.isBlank(password)) {
 139                                 throw new CredentialException(PASSWORD_IS_EMPTY);
 140                         }
 141                 } catch (Exception ex) {
 142                         logger.error(EELFLoggerDelegate.errorLogger, "Unable to initialize rest client", ex);
 143                 }
 144                 String authString = username + ":" + password;
 145                 byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 146                 String authStringEnc = new String(authEncBytes);
 147
 148                 commonHeaders = new MultivaluedHashMap<String, Object>();
 149                 commonHeaders.put("Authorization", Collections.singletonList((Object) ("Basic " + authStringEnc)));
 150
 151                 try {
 152                         if (!username.isEmpty()) {
 153
 154                                 client = HttpBasicClient.getClient();
 155                         } else {
 156
 157                                 client = HttpsBasicClient.getClient();
 158                         }
 159                 } catch (Exception e) {
 160                         logger.debug(EELFLoggerDelegate.debugLogger, "Unable to initialize rest client",e.getMessage());
 161
 162                 }
 163                 logger.debug(EELFLoggerDelegate.debugLogger, "Client Initialized");
 164
 165         }
 166
 167         @SuppressWarnings("unchecked")
 168         public <T> void Get(T t, String sourceId, String path,
 169                         org.onap.portalapp.portal.scheduler.restobjects.RestObject<T> restObject) throws Exception {
 170
 171                 String methodName = "Get";
 172                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 173
 174                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR GET : ", url);
 175                 try {
 176                         initRestClient();
 177
 178                         final Response cres = client.target(url).request().accept("application/json").headers(commonHeaders).get();
 179
 180                         int status = cres.getStatus();
 181                         restObject.setStatusCode(status);
 182
 183                         if (cres != null && cres.getEntity() != null) {
 184                                 try {
 185                                         String str = ((ResponseImpl) cres).readEntity(String.class);
 186                                         if (t.getClass().getName().equals(String.class.getName())) {
 187                                                 t = (T) str;
 188
 189                                         } else {
 190                                                 t = (T) gson.fromJson(str, t.getClass());
 191                                         }
 192
 193                                 } catch (Exception e) {
 194                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 195                                 }
 196                         } else {
 197                                 t = null;
 198                                 restObject.set(t);
 199                         }
 200
 201                         // t = (T) cres.readEntity(t.getClass());
 202
 203                         if (t.equals("")) {
 204                                 restObject.set(null);
 205                         } else {
 206                                 restObject.set(t);
 207                         }
 208                 } catch (HttpClientErrorException e) {
 209                         String message = String.format(
 210                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName, url);
 211                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 212                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 213                 } catch (Exception e) {
 214                         String message = String.format("Exception For the POST . MethodName: %s, Url: %s", methodName, url);
 215
 216                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 217                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 218
 219                         throw e;
 220
 221                 }
 222
 223         }
 224
 225         @SuppressWarnings("unchecked")
 226         public <T> void Post(T t, JSONObject requestDetails, String path, RestObject<T> restObject) throws Exception {
 227
 228                 String methodName = "Post";
 229                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 230                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR POST : " + url);
 231
 232                 try {
 233
 234                         initRestClient();
 235
 236                         // Change the content length
 237                         final Response cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 238                                         .post(Entity.entity(requestDetails, MediaType.APPLICATION_JSON));
 239
 240                         if (cres != null && cres.getEntity() != null) {
 241
 242                                 try {
 243                                         String str = ((ResponseImpl) cres).readEntity(String.class);
 244                                         if (t.getClass().getName().equals(String.class.getName())) {
 245                                                 t = (T) str;
 246
 247                                         } else {
 248                                                 t = (T) gson.fromJson(str, t.getClass());
 249                                         }
 250
 251                                 } catch (Exception e) {
 252                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 253                                 }
 254                                 // t = (T) cres.readEntity(t.getClass());
 255                                 restObject.set(t);
 256                         } else {
 257                                 t = null;
 258                                 restObject.set(t);
 259                         }
 260
 261                         int status = cres.getStatus();
 262                         restObject.setStatusCode(status);
 263
 264                         if (status >= 200 && status <= 299) {
 265                                 String message = String.format(" REST api POST was successful!", methodName);
 266                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 267
 268                         } else {
 269                                 String message = String.format(" FAILED with http status  . MethodName: %s, Status: %s, Url: %s",
 270                                                 methodName, status, url);
 271                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 272                         }
 273
 274                 } catch (HttpClientErrorException e) {
 275                         String message = String.format(
 276                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName, url);
 277                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 278                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 279                 } catch (Exception e) {
 280                         String message = String.format(
 281                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName, url);
 282                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 283                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 284                         throw e;
 285                 }
 286         }
 287
 288         @Override
 289         public void logRequest(JSONObject requestDetails) {
 290         }
 291
 292         @SuppressWarnings("unchecked")
 293         public <T> void Delete(T t, JSONObject requestDetails, String sourceID, String path, RestObject<T> restObject) {
 294
 295                 String methodName = "Delete";
 296                 String url = "";
 297                 Response cres = null;
 298
 299                 try {
 300                         initRestClient();
 301
 302                         url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 303
 304                         cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 305                                         // .entity(r)
 306                                         .build("DELETE", Entity.entity(requestDetails, MediaType.APPLICATION_JSON)).invoke();
 307                         // .method("DELETE", Entity.entity(r, MediaType.APPLICATION_JSON));
 308                         // .delete(Entity.entity(r, MediaType.APPLICATION_JSON));
 309
 310                         int status = cres.getStatus();
 311                         restObject.setStatusCode(status);
 312                         if (cres.getEntity() != null) {
 313                                 t = (T) cres.readEntity(t.getClass());
 314                                 restObject.set(t);
 315                         }
 316
 317                 } catch (HttpClientErrorException e) {
 318                         logger.error(EELFLoggerDelegate.errorLogger, " HttpClientErrorException:Exception For the Delete",
 319                                         methodName, url, e);
 320                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 321                 } catch (Exception e) {
 322                         logger.error(EELFLoggerDelegate.errorLogger, "Exception For the Delete", methodName, url, e);
 323                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 324                         throw e;
 325                 }
 326         }
 327
 328         public <T> T getInstance(Class<T> clazz) throws IllegalAccessException, InstantiationException {
 329                 return clazz.newInstance();
 330         }
 331
 332 }