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