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.drools.compiler.lang.DRL5Expressions.neg_operator_key_return;
  52 import org.eclipse.jetty.util.security.Password;
  53 import org.json.simple.JSONObject;
  54 import org.onap.portalapp.portal.logging.logic.EPLogUtil;
  55 import org.onap.portalapp.portal.scheduler.client.HttpBasicClient;
  56 import org.onap.portalapp.portal.scheduler.client.HttpsBasicClient;
  57 import org.onap.portalapp.portal.scheduler.restobjects.RestObject;
  58 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
  59 import org.springframework.http.HttpStatus;
  60 import org.springframework.stereotype.Service;
  61 import org.springframework.web.client.HttpClientErrorException;
  62
  63 @Service
  64 public class SchedulerRestInterface implements SchedulerRestInterfaceIfc {
  65
  66         private static final String PASSWORD_IS_EMPTY = "Password is Empty";
  67
  68         private static Client client = null;
  69
  70         private MultivaluedHashMap<String, Object> commonHeaders;
  71
  72         /** The logger. */
  73         static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SchedulerRestInterface.class);
  74
  75         public SchedulerRestInterface() {
  76                 super();
  77         }
  78
  79         public void initRestClient() {
  80                 logger.debug(EELFLoggerDelegate.debugLogger, "Starting to initialize rest client");
  81
  82                 final String username;
  83                 final String password;
  84
  85                 String methodName = "initRestClient";
  86                 /* Setting user name based on properties */
  87                 String retrievedUsername = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_USER_NAME_VAL);
  88                 if (retrievedUsername.isEmpty()) {
  89                         username = "";
  90                 } else {
  91                         username = retrievedUsername;
  92                 }
  93
  94                 /* Setting password based on properties */
  95                 String retrievedPassword = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_PASSWORD_VAL);
  96                 if (retrievedPassword.isEmpty()) {
  97                         password = StringUtils.EMPTY;
  98                 } else {
  99                         if (retrievedPassword.contains("OBF:")) {
 100                                 password = Password.deobfuscate(retrievedPassword);
 101                         } else {
 102                                 password = retrievedPassword;
 103                         }
 104                 }
 105                 try {
 106                         if (StringUtils.isBlank(password)) {
 107                                 throw new CredentialException(PASSWORD_IS_EMPTY);
 108                         }
 109                 } catch (Exception ex) {
 110                         logger.error(EELFLoggerDelegate.errorLogger, "Unable to initialize rest client", ex);
 111                 }
 112                 String authString = username + ":" + password;
 113                 byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 114                 String authStringEnc = new String(authEncBytes);
 115
 116                 commonHeaders = new MultivaluedHashMap<String, Object>();
 117                 commonHeaders.put("Authorization", Collections.singletonList((Object) ("Basic " + authStringEnc)));
 118
 119                 try {
 120                         if (!username.isEmpty()) {
 121
 122                                 client = HttpBasicClient.getClient();
 123                         } else {
 124
 125                                 client = HttpsBasicClient.getClient();
 126                         }
 127                 } catch (Exception e) {
 128                         logger.debug(EELFLoggerDelegate.debugLogger, "Unable to initialize rest client");
 129
 130                 }
 131                 logger.debug(EELFLoggerDelegate.debugLogger, "Client Initialized");
 132
 133         }
 134
 135         @SuppressWarnings("unchecked")
 136         public <T> void Get(T t, String sourceId, String path,
 137                         org.onap.portalapp.portal.scheduler.restobjects.RestObject<T> restObject) throws Exception {
 138
 139                 String methodName = "Get";
 140                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 141
 142                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR GET : ", url);
 143                 try {
 144                         initRestClient();
 145
 146                         final Response cres = client.target(url).request().accept("application/json").headers(commonHeaders).get();
 147
 148                         int status = cres.getStatus();
 149                         restObject.setStatusCode(status);
 150
 151                         t = (T) cres.readEntity(t.getClass());
 152                         if (t.equals("")) {
 153                                 restObject.set(null);
 154                         } else {
 155                                 restObject.set(t);
 156                         }
 157                 } catch (HttpClientErrorException e) {
 158                         String message = String.format(
 159                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName,url);
 160                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 161                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 162                 } catch (Exception e) {
 163                         String message = String.format(
 164                                         "Exception For the POST . MethodName: %s, Url: %s", methodName,url);
 165
 166                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 167                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 168
 169                         throw e;
 170
 171                 }
 172
 173         }
 174
 175         @SuppressWarnings("unchecked")
 176         public <T> void Post(T t, JSONObject requestDetails, String path, RestObject<T> restObject) throws Exception {
 177
 178                 String methodName = "Post";
 179                 String url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 180                 logger.debug(EELFLoggerDelegate.debugLogger, "URL FOR POST : "+ url);
 181
 182                 try {
 183
 184                         initRestClient();
 185
 186                         // Change the content length
 187                         final Response cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 188                                         .post(Entity.entity(requestDetails, MediaType.APPLICATION_JSON));
 189
 190                         if (cres.getEntity() != null) {
 191                                 t = (T) cres.readEntity(t.getClass());
 192                                 restObject.set(t);
 193                         } else {
 194                                 t = null;
 195                                 restObject.set(t);
 196                         }
 197
 198                         int status = cres.getStatus();
 199                         restObject.setStatusCode(status);
 200
 201                         if (status >= 200 && status <= 299) {
 202                                 String message = String.format(
 203                                                 " REST api POST was successful!", methodName);
 204                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 205
 206                         } else {
 207                                 String message = String.format(
 208                                                 " FAILED with http status  . MethodName: %s, Status: %s, Url: %s", methodName,status,url);
 209                                 logger.debug(EELFLoggerDelegate.debugLogger, message);
 210                         }
 211
 212                 } catch (HttpClientErrorException e) {
 213                         String message = String.format(
 214                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName,url);
 215                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 216                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 217                 } catch (Exception e) {
 218                         String message = String.format(
 219                                         " HttpClientErrorException: Exception For the POST  . MethodName: %s, Url: %s", methodName,url);
 220                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 221                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 222                         throw e;
 223                 }
 224         }
 225
 226         @Override
 227         public void logRequest(JSONObject requestDetails) {
 228         }
 229
 230         @SuppressWarnings("unchecked")
 231         public <T> void Delete(T t, JSONObject requestDetails, String sourceID, String path, RestObject<T> restObject) {
 232
 233                 String methodName = "Delete";
 234                 String url = "";
 235                 Response cres = null;
 236
 237                 try {
 238                         initRestClient();
 239
 240                         url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULER_SERVER_URL_VAL) + path;
 241
 242                         cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 243                                         // .entity(r)
 244                                         .build("DELETE", Entity.entity(requestDetails, MediaType.APPLICATION_JSON)).invoke();
 245                         // .method("DELETE", Entity.entity(r, MediaType.APPLICATION_JSON));
 246                         // .delete(Entity.entity(r, MediaType.APPLICATION_JSON));
 247
 248                         int status = cres.getStatus();
 249                         restObject.setStatusCode(status);
 250                         if (cres.getEntity() != null) {
 251                                 t = (T) cres.readEntity(t.getClass());
 252                                 restObject.set(t);
 253                         }
 254
 255                 } catch (HttpClientErrorException e) {
 256                         logger.error(EELFLoggerDelegate.errorLogger, " HttpClientErrorException:Exception For the Delete",
 257                                         methodName, url, e);
 258                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 259                 } catch (Exception e) {
 260                         logger.error(EELFLoggerDelegate.errorLogger, "Exception For the Delete", methodName, url, e);
 261                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 262                         throw e;
 263                 }
 264         }
 265
 266         public <T> T getInstance(Class<T> clazz) throws IllegalAccessException, InstantiationException {
 267                 return clazz.newInstance();
 268         }
 269
 270 }