portal-BE/src/main/java/org/onap/portal/scheduler/scheduleraux/SchedulerAuxRestInterface.java

   1 /*
   2  * ============LICENSE_START==========================================
   3  * ONAP Portal
   4  * ===================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   6  * ===================================================================
   7  * Modifications Copyright (c) 2019 Samsung
   8  * ===================================================================
   9  *
  10  * Unless otherwise specified, all software contained herein is licensed
  11  * under the Apache License, Version 2.0 (the "License");
  12  * you may not use this software except in compliance with the License.
  13  * You may obtain a copy of the License at
  14  *
  15  *             http://www.apache.org/licenses/LICENSE-2.0
  16  *
  17  * Unless required by applicable law or agreed to in writing, software
  18  * distributed under the License is distributed on an "AS IS" BASIS,
  19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20  * See the License for the specific language governing permissions and
  21  * limitations under the License.
  22  *
  23  * Unless otherwise specified, all documentation contained herein is licensed
  24  * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
  25  * you may not use this documentation except in compliance with the License.
  26  * You may obtain a copy of the License at
  27  *
  28  *             https://creativecommons.org/licenses/by/4.0/
  29  *
  30  * Unless required by applicable law or agreed to in writing, documentation
  31  * distributed under the License is distributed on an "AS IS" BASIS,
  32  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  33  * See the License for the specific language governing permissions and
  34  * limitations under the License.
  35  *
  36  * ============LICENSE_END============================================
  37  *
  38  *
  39  */
  40
  41 package org.onap.portal.scheduler.scheduleraux;
  42
  43 import com.fasterxml.jackson.databind.ObjectMapper;
  44 import com.google.gson.Gson;
  45 import com.google.gson.GsonBuilder;
  46 import com.google.gson.JsonDeserializationContext;
  47 import com.google.gson.JsonDeserializer;
  48 import com.google.gson.JsonElement;
  49 import com.google.gson.JsonParseException;
  50 import java.lang.reflect.Type;
  51 import java.text.SimpleDateFormat;
  52 import java.util.Collections;
  53 import java.util.Date;
  54 import javax.ws.rs.client.Client;
  55 import javax.ws.rs.client.Entity;
  56 import javax.ws.rs.core.MediaType;
  57 import javax.ws.rs.core.MultivaluedHashMap;
  58 import javax.ws.rs.core.Response;
  59 import org.apache.commons.codec.binary.Base64;
  60 import org.apache.cxf.jaxrs.impl.ResponseImpl;
  61 import org.eclipse.jetty.util.security.Password;
  62 import org.json.JSONObject;
  63 import org.onap.portal.logging.format.EPAppMessagesEnum;
  64 import org.onap.portal.logging.logic.EPLogUtil;
  65 import org.onap.portal.scheduler.SchedulerProperties;
  66 import org.onap.portal.scheduler.client.HttpBasicClient;
  67 import org.onap.portal.scheduler.policy.rest.RequestDetails;
  68 import org.onap.portal.scheduler.restobjects.RestObject;
  69 import org.onap.portal.utils.DateUtil;
  70 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
  71 import org.springframework.http.HttpStatus;
  72 import org.springframework.web.client.HttpClientErrorException;
  73
  74 public class SchedulerAuxRestInterface {
  75
  76         /** The logger. */
  77         EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(SchedulerAuxRestInterface.class);
  78
  79         /** The client. */
  80         private static Client client = null;
  81
  82         /** The common headers. */
  83         private MultivaluedHashMap<String, Object> commonHeaders;
  84
  85         public SchedulerAuxRestInterface() {
  86                 super();
  87         }
  88
  89         Gson gson = null;
  90
  91         private final ObjectMapper mapper = new ObjectMapper();
  92
  93         private void init() {
  94                 logger.debug(EELFLoggerDelegate.debugLogger, "initializing");
  95                 GsonBuilder builder = new GsonBuilder();
  96
  97                 // Register an adapter to manage the date types as long values
  98                 builder.registerTypeAdapter(Date.class, new JsonDeserializer<Date>() {
  99                         public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
 100                                         throws JsonParseException {
 101                                 return new Date(json.getAsJsonPrimitive().getAsLong());
 102                         }
 103                 });
 104
 105                 gson = builder.create();
 106         }
 107
 108         public void initRestClient() {
 109                 init();
 110                 final String methodname = "initRestClient()";
 111                 final String mechId = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_CLIENT_MECHID_VAL);
 112                 final String clientPassword = SchedulerProperties
 113                                 .getProperty(SchedulerProperties.SCHEDULERAUX_CLIENT_PASSWORD_VAL);
 114                 final String username = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_USERNAME_VAL);
 115                 final String password = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_PASSWORD_VAL);
 116                 final String environment = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_ENVIRONMENT_VAL);
 117                 final String clientAuth = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_CLIENTAUTH_VAL);
 118                 final String decrypted_client_password = Password.deobfuscate(clientPassword);
 119                 String mechAuthString = mechId + ":" + decrypted_client_password;
 120                 byte[] mechAuthEncBytes = Base64.encodeBase64(mechAuthString.getBytes());
 121                 final String decrypted_password = Password.deobfuscate(password);
 122                 String authString = username + ":" + decrypted_password;
 123                 byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 124                 String authorization = new String(authEncBytes);
 125
 126                 commonHeaders = new MultivaluedHashMap<String, Object>();
 127                 commonHeaders.put("ClientAuth", Collections.singletonList((Object) ("Basic " + clientAuth)));
 128                 commonHeaders.put("Authorization", Collections.singletonList((Object) ("Basic " + authorization)));
 129                 commonHeaders.put("Environment", Collections.singletonList((Object) (environment)));
 130
 131                 if (client == null) {
 132
 133                         try {
 134                                 client = HttpBasicClient.getClient();
 135                         } catch (Exception e) {
 136                                 logger.debug(EELFLoggerDelegate.debugLogger, " Unable to get the SSL client", methodname);
 137
 138                         }
 139                 }
 140         }
 141
 142         @SuppressWarnings("unchecked")
 143         public <T> void Get(T t, String sourceId, String path, RestObject<T> restObject) throws Exception {
 144                 String methodName = "Get";
 145
 146                 logger.debug(EELFLoggerDelegate.debugLogger, " start", methodName);
 147                 SimpleDateFormat dateFormat = DateUtil.getDateFormat();
 148
 149                 String url = "";
 150                 restObject.setT(t);
 151
 152                 url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_SERVER_URL_VAL) + path;
 153                 logger.debug(EELFLoggerDelegate.debugLogger, " sending request to url: ", dateFormat.format(new Date()),
 154                                 methodName, url);
 155
 156                 initRestClient();
 157
 158                 final Response cres = client.target(url).request().accept("application/json").headers(commonHeaders).get();
 159
 160                 int status = cres.getStatus();
 161                 restObject.setStatusCode(status);
 162
 163                 if (status == 200) {
 164                         t = (T) cres.readEntity(t.getClass());
 165                         restObject.setT(t);
 166                         logger.debug(EELFLoggerDelegate.debugLogger, " REST api was successfull!",
 167                                 dateFormat.format(new Date()), methodName);
 168
 169                 } else {
 170                         throw new Exception(methodName + " with status=" + status + ", url= " + url);
 171                 }
 172
 173                 logger.debug(EELFLoggerDelegate.debugLogger, " received status", methodName, status);
 174
 175                 return;
 176         }
 177
 178         @SuppressWarnings("unchecked")
 179         public <T> void Delete(T t, RequestDetails r, String sourceID, String path, RestObject<T> restObject) {
 180
 181                 String methodName = "Delete";
 182                 String url = "";
 183                 Response cres = null;
 184                 SimpleDateFormat dateFormat = DateUtil.getDateFormat();
 185
 186                 try {
 187                         initRestClient();
 188
 189                         url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_SERVER_URL_VAL) + path;
 190                         logger.debug(EELFLoggerDelegate.debugLogger, " methodName sending request to: ",
 191                                 dateFormat.format(new Date()), url, methodName);
 192
 193                         cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 194                                         // .entity(r)
 195                                         .build("DELETE", Entity.entity(r, MediaType.APPLICATION_JSON)).invoke();
 196                         // .method("DELETE", Entity.entity(r, MediaType.APPLICATION_JSON));
 197                         // .delete(Entity.entity(r, MediaType.APPLICATION_JSON));
 198
 199                         int status = cres.getStatus();
 200                         restObject.setStatusCode(status);
 201
 202                         if (status == 404) { // resource not found
 203                                 String msg = "Resource does not exist...: " + cres.getStatus();
 204                                 logger.debug(EELFLoggerDelegate.debugLogger, "msg", dateFormat.format(new Date()), msg);
 205                         } else if (status == 200 || status == 204) {
 206                                 logger.debug(EELFLoggerDelegate.debugLogger, "Resource--deleted:url", dateFormat.format(new Date()),
 207                                                 url);
 208                         } else if (status == 202) {
 209                                 String msg = "Delete in progress: " + status;
 210                                 logger.debug(EELFLoggerDelegate.debugLogger, "msg ", dateFormat.format(new Date()), msg);
 211                         } else {
 212                                 String msg = "Deleting Resource failed: " + status;
 213                                 logger.debug(EELFLoggerDelegate.debugLogger, "msg", dateFormat.format(new Date()), msg);
 214                         }
 215
 216                         try {
 217                                 t = (T) cres.readEntity(t.getClass());
 218                                 restObject.setT(t);
 219                         } catch (HttpClientErrorException e) {
 220                                 logger.error(EELFLoggerDelegate.errorLogger,
 221                                                 " HttpClientErrorException:No response entity, this is probably ok, e=", methodName, e);
 222                                 EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 223                         } catch (Exception e) {
 224                                 logger.error(EELFLoggerDelegate.errorLogger, "No response entity, this is probably ok, e=", methodName,
 225                                                 e);
 226                                 EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 227
 228                         }
 229
 230                 } catch (HttpClientErrorException e) {
 231                         logger.error(EELFLoggerDelegate.errorLogger, " HttpClientErrorException:Exception with the URL", methodName,
 232                                         url, e);
 233                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 234                 } catch (Exception e) {
 235                         logger.error(EELFLoggerDelegate.errorLogger, "Exception with the URL ",
 236                                 dateFormat.format(new Date()), methodName, url, e);
 237                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.INTERNAL_SERVER_ERROR.value());
 238
 239                         throw e;
 240
 241                 }
 242         }
 243
 244         @SuppressWarnings("unchecked")
 245         public <T> void post(T t, JSONObject requestDetails, String uuid, String path, RestObject<T> restObject)
 246                         throws HttpClientErrorException, Exception {
 247
 248                 String methodName = "Post";
 249                 String url = "";
 250                 Response cres = null;
 251                 logger.debug(EELFLoggerDelegate.debugLogger, "POST policy rest interface");
 252                 // logRequest (requestDetails);
 253                 try {
 254
 255                         initRestClient();
 256
 257                         url = SchedulerProperties.getProperty(SchedulerProperties.SCHEDULERAUX_SERVER_URL_VAL) + path;
 258                         logger.debug(EELFLoggerDelegate.debugLogger, " sending request to url= ", methodName, url);
 259                         // Change the content length
 260
 261                         cres = client.target(url).request().accept("application/json").headers(commonHeaders)
 262                                         // .header("content-length", 201)
 263                                         // .header("X-FromAppId", sourceID)
 264                                         .post(Entity.entity(requestDetails, MediaType.APPLICATION_JSON));
 265
 266                         /* It is not recommendable to use the implementation class org.apache.cxf.jaxrs.impl.ResponseImpl in the code,
 267                         but had to force this in-order to prevent conflict with the ResponseImpl class of Jersey Client which
 268                         doesn't work as expected. Created Portal-253 for tracking */
 269                         String str = ((ResponseImpl)cres).readEntity(String.class);
 270
 271                         try {
 272                                 if(t.getClass().getName().equals(String.class.getName())){
 273                                         t=(T) str;
 274
 275                                 }else{
 276                                         t = (T) gson.fromJson(str, t.getClass());
 277                                 }
 278
 279                         } catch (Exception e) {
 280                                 EPLogUtil.logEcompError(logger, EPAppMessagesEnum.BeInvalidJsonInput, e);
 281                         }
 282
 283                         //t = (T) cres.readEntity(t.getClass());
 284                         if (t.equals("")) {
 285                                 restObject.setT(null);
 286                         } else {
 287                                 restObject.setT(t);
 288                         }
 289
 290                         int status = cres.getStatus();
 291
 292                         restObject.setStatusCode(status);
 293
 294                         if (status >= 200 && status <= 299) {
 295                                 logger.debug(EELFLoggerDelegate.debugLogger, " REST api POST was successful!", methodName);
 296
 297                         } else {
 298                                 logger.debug(EELFLoggerDelegate.debugLogger, "methodname with Status and URL", methodName, status, url);
 299                         }
 300
 301                 } catch (HttpClientErrorException e) {
 302                         String message = String.format(
 303                                         " HttpClientErrorException:Exception with the URL . MethodName: %s, Url: %s", methodName,url);
 304                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 305                         EPLogUtil.schedulerAccessAlarm(logger, e.getStatusCode().value());
 306                 } catch (Exception e) {
 307                         String message = String.format(
 308                                         " Exception with the URL . MethodName: %s, Url: %s", methodName,url);
 309                         logger.error(EELFLoggerDelegate.errorLogger, message, e);
 310                         EPLogUtil.schedulerAccessAlarm(logger, HttpStatus.BAD_REQUEST.value());
 311                         throw e;
 312
 313                 }
 314         }
 315
 316         public <T> T getInstance(Class<T> clazz) throws IllegalAccessException, InstantiationException {
 317                 return clazz.newInstance();
 318         }
 319 }