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.onap.portalsdk.core.onboarding.exception.CipherUtilException;
  58 import org.onap.portalsdk.core.onboarding.util.CipherUtil;
  59 import org.onap.portalsdk.core.onboarding.util.KeyConstants;
  60 import org.onap.portalsdk.core.onboarding.util.KeyProperties;
  61 import org.springframework.http.HttpStatus;
  62 import org.springframework.stereotype.Service;
  63 import org.springframework.web.client.HttpClientErrorException;
  64
  65 import com.google.gson.Gson;
  66 import com.google.gson.GsonBuilder;
  67 import com.google.gson.JsonDeserializer;
  68
  69 import lombok.NoArgsConstructor;
  70
  71 @SuppressWarnings("MalformedFormatString")
  72 @Service
  73 @NoArgsConstructor
  74 public class SchedulerRestInterface implements SchedulerRestInterfaceIfc {
  75         private static final String APPLICATION_JSON = "application/json";
  76         private static final String PASSWORD_IS_EMPTY = "Password is Empty";
  77         private static final String HTTP_CLIENT_ERROR = " HttpClientErrorException: Exception For the POST  ."
  78                         + " MethodName: %APPLICATION_JSON, Url: %APPLICATION_JSON";
  79
  80         private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SchedulerRestInterface.class);
  81         private static WebClient client = null;
  82         private static Gson gson = null;
  83
  84         private MultivaluedHashMap<String, String> commonHeaders;
  85
  86         private static void init() {
  87                 logger.debug(EELFLoggerDelegate.debugLogger, "initializing");
  88                 GsonBuilder builder = new GsonBuilder();
  89
  90                 // Register an adapter to manage the date types as long values
  91                 builder.registerTypeAdapter(Date.class,
  92                                 (JsonDeserializer<Date>) (json, typeOfT, context) -> new Date(json.getAsJsonPrimitive().getAsLong()));
  93
  94                 gson = builder.create();
  95         }
  96
  97         public void initRestClient(String URI) {
  98                 logger.debug(EELFLoggerDelegate.debugLogger, "Starting to initialize rest client");
  99
 100                 init();
 101
 102                 final String username;
 103                 String password;
 104
 105                 /* Setting user name based on properties */
 106                 String retrievedUsername = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_USER_NAME_VAL);
 107                 if (retrievedUsername.isEmpty()) {
 108                         username = "";
 109                 } else {
 110                         username = retrievedUsername;
 111                 }
 112
 113                 /* Setting password based on properties */
 114                 String retrievedPassword = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_PASSWORD_VAL);
 115                 if (retrievedPassword.isEmpty()) {
 116                         password = StringUtils.EMPTY;
 117                 } else {
 118
 119                         try {
 120                                 password = CipherUtil.decryptPKC(retrievedPassword,
 121                                                 KeyProperties.getProperty(KeyConstants.CIPHER_ENCRYPTION_KEY));
 122                         } catch (CipherUtilException e) {
 123                                 logger.error(EELFLoggerDelegate.errorLogger, "failed to decrypt; Using as is", e);
 124                                 password = retrievedPassword;
 125                         }
 126
 127                 }
 128                 try {
 129                         if (StringUtils.isBlank(password)) {
 130                                 throw new CredentialException(PASSWORD_IS_EMPTY);
 131                         }
 132                 } catch (Exception ex) {
 133                         logger.error(EELFLoggerDelegate.errorLogger, "Unable to initialize rest client", ex);
 134                 }
 135                 String authString = username + ":" + password;
 136                 byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 137                 String authStringEnc = new String(authEncBytes);
 138
 139                 commonHeaders = new MultivaluedHashMap<>();
 140                 commonHeaders.put("Authorization", Collections.singletonList(("Basic " + authStringEnc)));
 141
 142                 // try {
 143                 // if (!username.isEmpty()) {
 144                 //
 145                 // client = HttpBasicClient.getClient();
 146                 // } else {
 147                 //
 148                 // client = HttpsBasicClient.getClient();
 149                 // }
 150                 // } catch (Exception e) {
 151                 // logger.debug(EELFLoggerDelegate.debugLogger, "Unable to initialize rest
 152                 // client",e.getMessage());
 153                 //
 154                 // }
 155
 156                 client = WebClient.create(URI);
 157                 client.type(MediaType.APPLICATION_JSON).accept(MediaType.APPLICATION_JSON);
 158                 // client.path("");
 159                 client.headers(commonHeaders);
 160
 161                 logger.debug(EELFLoggerDelegate.debugLogger, "Client Initialized");
 162
 163         }
 164
 165         @SuppressWarnings("unchecked")
 166         public <T> void Get(T t, String sourceId, String path,
 167                         org.onap.portalapp.portal.scheduler.restobjects.RestObject<T> restObject) {
 168
 169                 String methodName = "Get";
 170                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 171
 172                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR GET : ", url);
 173                 try {
 174                         initRestClient(url);
 175
 176                         // final Response cres =
 177                         // client.target(url).request().accept(APPLICATION_JSON).headers(commonHeaders).get();
 178                         final ResponseImpl cres = (ResponseImpl) client.get();
 179
 180                         logger.debug(EELFLoggerDelegate.debugLogger, "The implemenation class of Response : ",
 181                                         cres.getClass().getName());
 182                         int status = cres.getStatus();
 183                         restObject.setStatusCode(status);
 184
 185                         if (cres.getEntity() != null) {
 186                                 try {
 187                                         String str = (cres).readEntity(String.class);
 188                                         if (t.getClass().isAssignableFrom(String.class)) {
 189                                                 t = (T) str;
 190
 191                                         } else {
 192                                                 t = (T) gson.fromJson(str, t.getClass());
 193                                         }
 194
 195                                 } catch (Exception e) {
 196                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 197                                 }
 198                         } else {
 199                                 t = null;
 200                                 restObject.set(null);
 201                         }
 202
 203                         if ("".equals(t)) {
 204                                 restObject.set(null);
 205                         } else {
 206                                 restObject.set(t);
 207                         }
 208                 } catch (HttpClientErrorException e) {
 209                         String message = String.format(HTTP_CLIENT_ERROR, methodName, url);
 210                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 211                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 212                 } catch (Exception e) {
 213                         String message = String.format(
 214                                         "Exception For the POST . MethodName: %APPLICATION_JSON, Url: %APPLICATION_JSON", 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) {
 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(url);
 235
 236                         // Change the content length
 237                         final ResponseImpl cres = (ResponseImpl) client.post(requestDetails.toJSONString());
 238
 239                         if (cres != null && cres.getEntity() != null) {
 240
 241                                 try {
 242                                         String str = (cres).readEntity(String.class);
 243                                         if (t.getClass().isAssignableFrom(String.class)) {
 244                                                 t = (T) str;
 245
 246                                         } else {
 247                                                 t = (T) gson.fromJson(str, t.getClass());
 248                                         }
 249
 250                                 } catch (Exception e) {
 251                                         EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 252                                 }
 253                                 restObject.set(t);
 254                         } else {
 255                                 restObject.set(null);
 256                         }
 257
 258                         int status = cres != null ? cres.getStatus() : 0;
 259                         restObject.setStatusCode(status);
 260
 261                         if (status >= 200 && status <= 299) {
 262                                 String message = String.format(" REST api POST was successful!", methodName);
 263                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 264
 265                         } else {
 266                                 String message = String.format(
 267                                                 " FAILED with http status  . MethodName: %APPLICATION_JSON, Status: %APPLICATION_JSON, Url: %APPLICATION_JSON",
 268                                                 methodName, status, url);
 269                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 270                         }
 271
 272                 } catch (HttpClientErrorException e) {
 273                         String message = String.format(HTTP_CLIENT_ERROR, methodName, url);
 274                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 275                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 276                 } catch (Exception e) {
 277                         String message = String.format(HTTP_CLIENT_ERROR, methodName, url);
 278                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 279                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 280                         throw e;
 281                 }
 282         }
 283
 284         @Override
 285         public void logRequest(JSONObject requestDetails) {
 286                 throw new UnsupportedOperationException();
 287         }
 288
 289 }