src/main/java/org/onap/music/conductor/conditionals/MusicConditional.java

   1 /*
   2  * ============LICENSE_START==========================================
   3  * org.onap.music
   4  * ===================================================================
   5  *  Copyright (c) 2017 AT&T Intellectual Property
   6  * ===================================================================
   7  *  Modifications Copyright (C) 2019 IBM.
   8  *  Modifications Copyright (c) 2019 Samsung
   9  * ===================================================================
  10  *  Licensed under the Apache License, Version 2.0 (the "License");
  11  *  you may not use this file except in compliance with the License.
  12  *  You may obtain a copy of the License at
  13  *
  14  *     http://www.apache.org/licenses/LICENSE-2.0
  15  *
  16  *  Unless required by applicable law or agreed to in writing, software
  17  *  distributed under the License is distributed on an "AS IS" BASIS,
  18  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  19  *  See the License for the specific language governing permissions and
  20  *  limitations under the License.
  21  *
  22  * ============LICENSE_END=============================================
  23  * ====================================================================
  24  */
  25
  26 package org.onap.music.conductor.conditionals;
  27
  28 import java.io.PrintWriter;
  29 import java.io.StringWriter;
  30 import java.util.HashMap;
  31 import java.util.Map;
  32
  33 import org.codehaus.jettison.json.JSONObject;
  34 import org.onap.music.datastore.MusicDataStoreHandle;
  35 import org.onap.music.datastore.PreparedQueryObject;
  36 import org.onap.music.eelf.logging.EELFLoggerDelegate;
  37 import org.onap.music.eelf.logging.format.AppMessages;
  38 import org.onap.music.eelf.logging.format.ErrorSeverity;
  39 import org.onap.music.eelf.logging.format.ErrorTypes;
  40 import org.onap.music.exceptions.MusicLockingException;
  41 import org.onap.music.exceptions.MusicQueryException;
  42 import org.onap.music.exceptions.MusicServiceException;
  43 import org.onap.music.main.MusicCore;
  44 import org.onap.music.main.MusicUtil;
  45 import org.onap.music.main.ResultType;
  46 import org.onap.music.main.ReturnType;
  47 import org.onap.music.rest.RestMusicDataAPI;
  48
  49 import com.datastax.driver.core.ColumnDefinitions;
  50 import com.datastax.driver.core.DataType;
  51 import com.datastax.driver.core.ResultSet;
  52 import com.datastax.driver.core.Row;
  53 import com.datastax.driver.core.TableMetadata;
  54
  55 public class MusicConditional {
  56     private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(RestMusicDataAPI.class);
  57
  58     public static ReturnType conditionalInsert(String keyspace, String tablename, String casscadeColumnName,
  59             Map<String, Object> casscadeColumnData, String primaryKey, Map<String, Object> valuesMap,
  60             Map<String, String> status) throws Exception {
  61
  62         Map<String, PreparedQueryObject> queryBank = new HashMap<>();
  63         TableMetadata tableInfo = null;
  64         tableInfo = MusicDataStoreHandle.returnColumnMetadata(keyspace, tablename);
  65         DataType primaryIdType = tableInfo.getPrimaryKey().get(0).getType();
  66         String primaryId = tableInfo.getPrimaryKey().get(0).getName();
  67         DataType casscadeColumnType = tableInfo.getColumn(casscadeColumnName).getType();
  68         String vector = String.valueOf(Thread.currentThread().getId() + System.currentTimeMillis());
  69
  70         PreparedQueryObject select = new PreparedQueryObject();
  71         select.appendQueryString("SELECT * FROM " + keyspace + "." + tablename + " where " + primaryId + " = ?");
  72         select.addValue(MusicUtil.convertToActualDataType(primaryIdType, primaryKey));
  73         queryBank.put(MusicUtil.SELECT, select);
  74
  75         PreparedQueryObject update = new PreparedQueryObject();
  76         //casscade column values
  77         Map<String, String> updateColumnvalues = getValues(true, casscadeColumnData, status);
  78         Object formatedValues = MusicUtil.convertToActualDataType(casscadeColumnType, updateColumnvalues);
  79         update.appendQueryString("UPDATE " + keyspace + "." + tablename + " SET " + casscadeColumnName + " ="
  80                 + casscadeColumnName + " + ? , vector_ts = ?" + " WHERE " + primaryId + " = ? ");
  81         update.addValue(formatedValues);
  82         update.addValue(MusicUtil.convertToActualDataType(DataType.text(), vector));
  83         update.addValue(MusicUtil.convertToActualDataType(primaryIdType, primaryKey));
  84         queryBank.put(MusicUtil.UPDATE, update);
  85
  86
  87         //casscade column values
  88         Map<String, String> insertColumnvalues = getValues(false, casscadeColumnData, status);
  89         formatedValues = MusicUtil.convertToActualDataType(casscadeColumnType, insertColumnvalues);
  90         PreparedQueryObject insert = extractQuery(valuesMap, tableInfo, tablename, keyspace, primaryId, primaryKey,casscadeColumnName,formatedValues);
  91         queryBank.put(MusicUtil.INSERT, insert);
  92
  93
  94         String key = keyspace + "." + tablename + "." + primaryKey;
  95         String lockId;
  96         try {
  97                 lockId = MusicCore.createLockReference(key);
  98         } catch (MusicLockingException e) {
  99                 return new ReturnType(ResultType.FAILURE, e.getMessage());
 100         }
 101         long leasePeriod = MusicUtil.getDefaultLockLeasePeriod();
 102         ReturnType lockAcqResult = MusicCore.acquireLockWithLease(key, lockId, leasePeriod);
 103
 104         try {
 105             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 106                 ReturnType criticalPutResult = conditionalInsertAtomic(lockId, keyspace, tablename, primaryKey,
 107                         queryBank);
 108                 MusicCore.destroyLockRef(lockId);
 109                 if (criticalPutResult.getMessage().contains("insert"))
 110                     criticalPutResult
 111                             .setMessage("Insert values: ");
 112                 else if (criticalPutResult.getMessage().contains("update"))
 113                     criticalPutResult
 114                             .setMessage("Update values: " + updateColumnvalues);
 115                 return criticalPutResult;
 116
 117             } else {
 118                 MusicCore.destroyLockRef(lockId);
 119                 return lockAcqResult;
 120             }
 121         } catch (Exception e) {
 122             logger.error(EELFLoggerDelegate.applicationLogger, e);
 123             MusicCore.destroyLockRef(lockId);
 124             return new ReturnType(ResultType.FAILURE, e.getMessage());
 125         }
 126
 127     }
 128
 129     public static ReturnType conditionalInsertAtomic(String lockId, String keyspace, String tableName,
 130             String primaryKey, Map<String, PreparedQueryObject> queryBank) {
 131
 132         ResultSet results = null;
 133
 134         try {
 135             String fullyQualifiedKey = keyspace + "." + tableName + "." + primaryKey;
 136             ReturnType lockAcqResult = MusicCore.acquireLock(fullyQualifiedKey, lockId);
 137             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 138                 try {
 139                     results = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryBank.get(MusicUtil.SELECT));
 140                 } catch (Exception e) {
 141                     logger.error(EELFLoggerDelegate.applicationLogger, e);
 142                     return new ReturnType(ResultType.FAILURE, e.getMessage());
 143                 }
 144                 if (results.all().isEmpty()) {
 145                     MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.INSERT), "critical");
 146                     return new ReturnType(ResultType.SUCCESS, "insert");
 147                 } else {
 148                     MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.UPDATE), "critical");
 149                     return new ReturnType(ResultType.SUCCESS, "update");
 150                 }
 151             } else {
 152                 return new ReturnType(ResultType.FAILURE,
 153                         "Cannot perform operation since you are the not the lock holder");
 154             }
 155
 156         } catch (Exception e) {
 157             StringWriter sw = new StringWriter();
 158             e.printStackTrace(new PrintWriter(sw));
 159             String exceptionAsString = sw.toString();
 160             logger.error(EELFLoggerDelegate.applicationLogger, e);
 161             return new ReturnType(ResultType.FAILURE,
 162                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
 163                             + exceptionAsString);
 164         }
 165
 166     }
 167
 168         public static ReturnType update(Map<String, PreparedQueryObject> queryBank, String keyspace, String tableName,
 169                         String primaryKey, String primaryKeyValue, String planId, String cascadeColumnName,
 170                         Map<String, String> cascadeColumnValues)
 171                         throws MusicLockingException, MusicQueryException, MusicServiceException {
 172
 173         String key = keyspace + "." + tableName + "." + primaryKeyValue;
 174         String lockId = MusicCore.createLockReference(key);
 175         long leasePeriod = MusicUtil.getDefaultLockLeasePeriod();
 176         ReturnType lockAcqResult = MusicCore.acquireLockWithLease(key, lockId, leasePeriod);
 177
 178         try {
 179
 180             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 181                 ReturnType criticalPutResult = updateAtomic(lockId, keyspace, tableName, primaryKey,primaryKeyValue, queryBank,planId,cascadeColumnValues,cascadeColumnName);
 182                 MusicCore.destroyLockRef(lockId);
 183                 return criticalPutResult;
 184             } else {
 185                 MusicCore.destroyLockRef(lockId);
 186                 return lockAcqResult;
 187             }
 188
 189         } catch (Exception e) {
 190             MusicCore.destroyLockRef(lockId);
 191             logger.error(EELFLoggerDelegate.applicationLogger, e);
 192             return new ReturnType(ResultType.FAILURE, e.getMessage());
 193
 194         }
 195     }
 196
 197     public static ReturnType updateAtomic(String lockId, String keyspace, String tableName, String primaryKey,String primaryKeyValue,
 198             Map<String,PreparedQueryObject> queryBank,String planId,Map<String,String> cascadeColumnValues,String casscadeColumnName) {
 199         try {
 200             String fullyQualifiedKey = keyspace + "." + tableName + "." + primaryKeyValue;
 201             ReturnType lockAcqResult = MusicCore.acquireLock(fullyQualifiedKey, lockId);
 202
 203             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 204                 Row row  = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryBank.get(MusicUtil.SELECT)).one();
 205
 206                 if(row != null) {
 207                     Map<String, String> updatedValues = cascadeColumnUpdateSpecific(row, cascadeColumnValues, casscadeColumnName, planId);
 208                     JSONObject json = new JSONObject(updatedValues);
 209                     PreparedQueryObject update = new PreparedQueryObject();
 210                     String vector_ts = String.valueOf(Thread.currentThread().getId() + System.currentTimeMillis());
 211                     update.appendQueryString("UPDATE " + keyspace + "." + tableName + " SET " + casscadeColumnName + "['" + planId
 212                             + "'] = ?, vector_ts = ? WHERE " + primaryKey + " = ?");
 213                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), json.toString()));
 214                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), vector_ts));
 215                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), primaryKeyValue));
 216                     try {
 217                         MusicDataStoreHandle.getDSHandle().executePut(update, "critical");
 218                     } catch (Exception ex) {
 219                         logger.error(EELFLoggerDelegate.applicationLogger, ex);
 220                         return new ReturnType(ResultType.FAILURE, ex.getMessage());
 221                     }
 222                 }else {
 223                     return new ReturnType(ResultType.FAILURE,"Cannot find data related to key: "+primaryKey);
 224                 }
 225                 MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.UPSERT), "critical");
 226                 return new ReturnType(ResultType.SUCCESS, "update success");
 227
 228             } else {
 229                 return new ReturnType(ResultType.FAILURE,
 230                         "Cannot perform operation since you are the not the lock holder");
 231             }
 232
 233         } catch (Exception e) {
 234             StringWriter sw = new StringWriter();
 235             e.printStackTrace(new PrintWriter(sw));
 236             String exceptionAsString = sw.toString();
 237             logger.error(EELFLoggerDelegate.applicationLogger, e);
 238             return new ReturnType(ResultType.FAILURE,
 239                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
 240                             + exceptionAsString);
 241         }
 242
 243     }
 244
 245     @SuppressWarnings("unchecked")
 246     public static Map<String, String> getValues(boolean isExists, Map<String, Object> casscadeColumnData,
 247             Map<String, String> status) {
 248
 249         Map<String, String> returnMap = new HashMap<>();
 250         Object key = casscadeColumnData.get("key");
 251         String setStatus = "";
 252         Map<String, String> value = (Map<String, String>) casscadeColumnData.get("value");
 253
 254         if (isExists)
 255             setStatus = status.get("exists");
 256         else
 257             setStatus = status.get("nonexists");
 258
 259         value.put("status", setStatus);
 260         JSONObject valueJson = new JSONObject(value);
 261         returnMap.put(key.toString(), valueJson.toString());
 262         return returnMap;
 263
 264     }
 265
 266     public static PreparedQueryObject extractQuery(Map<String, Object> valuesMap, TableMetadata tableInfo, String tableName,
 267             String keySpaceName,String primaryKeyName,String primaryKey,String casscadeColumn,Object casscadeColumnValues) throws Exception {
 268
 269         PreparedQueryObject queryObject = new PreparedQueryObject();
 270         StringBuilder fieldsString = new StringBuilder("(vector_ts"+",");
 271         StringBuilder valueString = new StringBuilder("(" + "?" + ",");
 272         String vector = String.valueOf(Thread.currentThread().getId() + System.currentTimeMillis());
 273         String localPrimaryKey;
 274         queryObject.addValue(vector);
 275         if(casscadeColumn!=null && casscadeColumnValues!=null) {
 276             fieldsString.append(casscadeColumn).append(" ,");
 277             valueString.append("?,");
 278             queryObject.addValue(casscadeColumnValues);
 279         }
 280
 281         int counter = 0;
 282         for (Map.Entry<String, Object> entry : valuesMap.entrySet()) {
 283
 284             fieldsString.append(entry.getKey());
 285             Object valueObj = entry.getValue();
 286             if (primaryKeyName.equals(entry.getKey())) {
 287                 localPrimaryKey = entry.getValue() + "";
 288                 localPrimaryKey = localPrimaryKey.replace("'", "''");
 289             }
 290             DataType colType = null;
 291             try {
 292                 colType = tableInfo.getColumn(entry.getKey()).getType();
 293             } catch(NullPointerException ex) {
 294                 logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey(),
 295                     AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR, ex);
 296             }
 297
 298             Object formattedValue = null;
 299             try {
 300                 formattedValue = MusicUtil.convertToActualDataType(colType, valueObj);
 301             } catch (Exception e) {
 302                 logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
 303             }
 304
 305             valueString.append("?");
 306             queryObject.addValue(formattedValue);
 307
 308
 309             if (counter == valuesMap.size() - 1) {
 310                 fieldsString.append(")");
 311                 valueString.append(")");
 312             } else {
 313                 fieldsString.append(",");
 314                 valueString.append(",");
 315             }
 316             counter = counter + 1;
 317         }
 318         queryObject.appendQueryString("INSERT INTO " + keySpaceName + "." + tableName + " "
 319                 + fieldsString + " VALUES " + valueString);
 320         return queryObject;
 321     }
 322
 323     public static Object getColValue(Row row, String colName, DataType colType) {
 324         switch (colType.getName()) {
 325         case VARCHAR:
 326             return row.getString(colName);
 327         case UUID:
 328             return row.getUUID(colName);
 329         case VARINT:
 330             return row.getVarint(colName);
 331         case BIGINT:
 332             return row.getLong(colName);
 333         case INT:
 334             return row.getInt(colName);
 335         case FLOAT:
 336             return row.getFloat(colName);
 337         case DOUBLE:
 338             return row.getDouble(colName);
 339         case BOOLEAN:
 340             return row.getBool(colName);
 341         case MAP:
 342             return row.getMap(colName, String.class, String.class);
 343         default:
 344             return null;
 345         }
 346     }
 347
 348     @SuppressWarnings("unchecked")
 349     public static Map<String, String> cascadeColumnUpdateSpecific(Row row, Map<String, String> changeOfStatus,
 350             String cascadeColumnName, String planId) {
 351
 352         ColumnDefinitions colInfo = row.getColumnDefinitions();
 353         DataType colType = colInfo.getType(cascadeColumnName);
 354         Object columnValue = getColValue(row, cascadeColumnName, colType);
 355
 356         Map<String, String> finalValues = new HashMap<>();
 357         Map<String, String> values = (Map<String, String>) columnValue;
 358         if (values != null && values.keySet().contains(planId)) {
 359             String valueString = values.get(planId);
 360             String tempValueString = valueString.replaceAll("\\{", "").replaceAll("\"", "").replaceAll("\\}", "");
 361             String[] elements = tempValueString.split(",");
 362             for (String str : elements) {
 363                 String[] keyValue = str.split(":");
 364                 if ((changeOfStatus.keySet().contains(keyValue[0].replaceAll("\\s", ""))))
 365                 keyValue[1] = changeOfStatus.get(keyValue[0].replaceAll("\\s", ""));
 366                 finalValues.put(keyValue[0], keyValue[1]);
 367             }
 368         }
 369         return finalValues;
 370
 371     }
 372
 373 }