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 = MusicCore.createLockReference(key);
  96         long leasePeriod = MusicUtil.getDefaultLockLeasePeriod();
  97         ReturnType lockAcqResult = MusicCore.acquireLockWithLease(key, lockId, leasePeriod);
  98
  99         try {
 100             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 101                 ReturnType criticalPutResult = conditionalInsertAtomic(lockId, keyspace, tablename, primaryKey,
 102                         queryBank);
 103                 MusicCore.destroyLockRef(lockId);
 104                 if (criticalPutResult.getMessage().contains("insert"))
 105                     criticalPutResult
 106                             .setMessage("Insert values: ");
 107                 else if (criticalPutResult.getMessage().contains("update"))
 108                     criticalPutResult
 109                             .setMessage("Update values: " + updateColumnvalues);
 110                 return criticalPutResult;
 111
 112             } else {
 113                 MusicCore.destroyLockRef(lockId);
 114                 return lockAcqResult;
 115             }
 116         } catch (Exception e) {
 117             logger.error(EELFLoggerDelegate.applicationLogger, e);
 118             MusicCore.destroyLockRef(lockId);
 119             return new ReturnType(ResultType.FAILURE, e.getMessage());
 120         }
 121
 122     }
 123
 124     public static ReturnType conditionalInsertAtomic(String lockId, String keyspace, String tableName,
 125             String primaryKey, Map<String, PreparedQueryObject> queryBank) {
 126
 127         ResultSet results = null;
 128
 129         try {
 130             String fullyQualifiedKey = keyspace + "." + tableName + "." + primaryKey;
 131             ReturnType lockAcqResult = MusicCore.acquireLock(fullyQualifiedKey, lockId);
 132             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 133                 try {
 134                     results = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryBank.get(MusicUtil.SELECT));
 135                 } catch (Exception e) {
 136                     logger.error(EELFLoggerDelegate.applicationLogger, e);
 137                     return new ReturnType(ResultType.FAILURE, e.getMessage());
 138                 }
 139                 if (results.all().isEmpty()) {
 140                     MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.INSERT), "critical");
 141                     return new ReturnType(ResultType.SUCCESS, "insert");
 142                 } else {
 143                     MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.UPDATE), "critical");
 144                     return new ReturnType(ResultType.SUCCESS, "update");
 145                 }
 146             } else {
 147                 return new ReturnType(ResultType.FAILURE,
 148                         "Cannot perform operation since you are the not the lock holder");
 149             }
 150
 151         } catch (Exception e) {
 152             StringWriter sw = new StringWriter();
 153             e.printStackTrace(new PrintWriter(sw));
 154             String exceptionAsString = sw.toString();
 155             logger.error(EELFLoggerDelegate.applicationLogger, e);
 156             return new ReturnType(ResultType.FAILURE,
 157                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
 158                             + exceptionAsString);
 159         }
 160
 161     }
 162
 163     public static ReturnType update(Map<String,PreparedQueryObject> queryBank, String keyspace, String tableName, String primaryKey,String primaryKeyValue,String planId,String cascadeColumnName,Map<String,String> cascadeColumnValues) throws MusicLockingException, MusicQueryException, MusicServiceException {
 164
 165         String key = keyspace + "." + tableName + "." + primaryKeyValue;
 166         String lockId = MusicCore.createLockReference(key);
 167         long leasePeriod = MusicUtil.getDefaultLockLeasePeriod();
 168         ReturnType lockAcqResult = MusicCore.acquireLockWithLease(key, lockId, leasePeriod);
 169
 170         try {
 171
 172             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 173                 ReturnType criticalPutResult = updateAtomic(lockId, keyspace, tableName, primaryKey,primaryKeyValue, queryBank,planId,cascadeColumnValues,cascadeColumnName);
 174                 MusicCore.destroyLockRef(lockId);
 175                 return criticalPutResult;
 176             } else {
 177                 MusicCore.destroyLockRef(lockId);
 178                 return lockAcqResult;
 179             }
 180
 181         } catch (Exception e) {
 182             MusicCore.destroyLockRef(lockId);
 183             logger.error(EELFLoggerDelegate.applicationLogger, e);
 184             return new ReturnType(ResultType.FAILURE, e.getMessage());
 185
 186         }
 187     }
 188
 189     public static ReturnType updateAtomic(String lockId, String keyspace, String tableName, String primaryKey,String primaryKeyValue,
 190             Map<String,PreparedQueryObject> queryBank,String planId,Map<String,String> cascadeColumnValues,String casscadeColumnName) {
 191         try {
 192             String fullyQualifiedKey = keyspace + "." + tableName + "." + primaryKeyValue;
 193             ReturnType lockAcqResult = MusicCore.acquireLock(fullyQualifiedKey, lockId);
 194
 195             if (lockAcqResult.getResult().equals(ResultType.SUCCESS)) {
 196                 Row row  = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryBank.get(MusicUtil.SELECT)).one();
 197
 198                 if(row != null) {
 199                     Map<String, String> updatedValues = cascadeColumnUpdateSpecific(row, cascadeColumnValues, casscadeColumnName, planId);
 200                     JSONObject json = new JSONObject(updatedValues);
 201                     PreparedQueryObject update = new PreparedQueryObject();
 202                     String vector_ts = String.valueOf(Thread.currentThread().getId() + System.currentTimeMillis());
 203                     update.appendQueryString("UPDATE " + keyspace + "." + tableName + " SET " + casscadeColumnName + "['" + planId
 204                             + "'] = ?, vector_ts = ? WHERE " + primaryKey + " = ?");
 205                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), json.toString()));
 206                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), vector_ts));
 207                     update.addValue(MusicUtil.convertToActualDataType(DataType.text(), primaryKeyValue));
 208                     try {
 209                         MusicDataStoreHandle.getDSHandle().executePut(update, "critical");
 210                     } catch (Exception ex) {
 211                         logger.error(EELFLoggerDelegate.applicationLogger, ex);
 212                         return new ReturnType(ResultType.FAILURE, ex.getMessage());
 213                     }
 214                 }else {
 215                     return new ReturnType(ResultType.FAILURE,"Cannot find data related to key: "+primaryKey);
 216                 }
 217                 MusicDataStoreHandle.getDSHandle().executePut(queryBank.get(MusicUtil.UPSERT), "critical");
 218                 return new ReturnType(ResultType.SUCCESS, "update success");
 219
 220             } else {
 221                 return new ReturnType(ResultType.FAILURE,
 222                         "Cannot perform operation since you are the not the lock holder");
 223             }
 224
 225         } catch (Exception e) {
 226             StringWriter sw = new StringWriter();
 227             e.printStackTrace(new PrintWriter(sw));
 228             String exceptionAsString = sw.toString();
 229             logger.error(EELFLoggerDelegate.applicationLogger, e);
 230             return new ReturnType(ResultType.FAILURE,
 231                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
 232                             + exceptionAsString);
 233         }
 234
 235     }
 236
 237     @SuppressWarnings("unchecked")
 238     public static Map<String, String> getValues(boolean isExists, Map<String, Object> casscadeColumnData,
 239             Map<String, String> status) {
 240
 241         Map<String, String> returnMap = new HashMap<>();
 242         Object key = casscadeColumnData.get("key");
 243         String setStatus = "";
 244         Map<String, String> value = (Map<String, String>) casscadeColumnData.get("value");
 245
 246         if (isExists)
 247             setStatus = status.get("exists");
 248         else
 249             setStatus = status.get("nonexists");
 250
 251         value.put("status", setStatus);
 252         JSONObject valueJson = new JSONObject(value);
 253         returnMap.put(key.toString(), valueJson.toString());
 254         return returnMap;
 255
 256     }
 257
 258     public static PreparedQueryObject extractQuery(Map<String, Object> valuesMap, TableMetadata tableInfo, String tableName,
 259             String keySpaceName,String primaryKeyName,String primaryKey,String casscadeColumn,Object casscadeColumnValues) throws Exception {
 260
 261         PreparedQueryObject queryObject = new PreparedQueryObject();
 262         StringBuilder fieldsString = new StringBuilder("(vector_ts"+",");
 263         StringBuilder valueString = new StringBuilder("(" + "?" + ",");
 264         String vector = String.valueOf(Thread.currentThread().getId() + System.currentTimeMillis());
 265         String localPrimaryKey;
 266         queryObject.addValue(vector);
 267         if(casscadeColumn!=null && casscadeColumnValues!=null) {
 268             fieldsString.append(casscadeColumn).append(" ,");
 269           valueString.append("?,");
 270           queryObject.addValue(casscadeColumnValues);
 271         }
 272
 273         int counter = 0;
 274         for (Map.Entry<String, Object> entry : valuesMap.entrySet()) {
 275
 276             fieldsString.append(entry.getKey());
 277             Object valueObj = entry.getValue();
 278             if (primaryKeyName.equals(entry.getKey())) {
 279               localPrimaryKey = entry.getValue() + "";
 280               localPrimaryKey = localPrimaryKey.replace("'", "''");
 281             }
 282             DataType colType = null;
 283             try {
 284                 colType = tableInfo.getColumn(entry.getKey()).getType();
 285             } catch(NullPointerException ex) {
 286                 logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey
 287                     (), AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR, ex);
 288
 289             }
 290
 291             Object formattedValue = null;
 292             try {
 293               formattedValue = MusicUtil.convertToActualDataType(colType, valueObj);
 294             } catch (Exception e) {
 295               logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
 296           }
 297
 298             valueString.append("?");
 299             queryObject.addValue(formattedValue);
 300
 301
 302             if (counter == valuesMap.size() - 1) {
 303                 fieldsString.append(")");
 304                 valueString.append(")");
 305             } else {
 306                 fieldsString.append(",");
 307                 valueString.append(",");
 308             }
 309             counter = counter + 1;
 310         }
 311         queryObject.appendQueryString("INSERT INTO " + keySpaceName + "." + tableName + " "
 312                 + fieldsString + " VALUES " + valueString);
 313         return queryObject;
 314     }
 315
 316     public static Object getColValue(Row row, String colName, DataType colType) {
 317         switch (colType.getName()) {
 318         case VARCHAR:
 319             return row.getString(colName);
 320         case UUID:
 321             return row.getUUID(colName);
 322         case VARINT:
 323             return row.getVarint(colName);
 324         case BIGINT:
 325             return row.getLong(colName);
 326         case INT:
 327             return row.getInt(colName);
 328         case FLOAT:
 329             return row.getFloat(colName);
 330         case DOUBLE:
 331             return row.getDouble(colName);
 332         case BOOLEAN:
 333             return row.getBool(colName);
 334         case MAP:
 335             return row.getMap(colName, String.class, String.class);
 336         default:
 337             return null;
 338         }
 339     }
 340
 341     @SuppressWarnings("unchecked")
 342     public static Map<String, String> cascadeColumnUpdateSpecific(Row row, Map<String, String> changeOfStatus,
 343             String cascadeColumnName, String planId) {
 344
 345         ColumnDefinitions colInfo = row.getColumnDefinitions();
 346         DataType colType = colInfo.getType(cascadeColumnName);
 347         Object columnValue = getColValue(row, cascadeColumnName, colType);
 348
 349         Map<String, String> finalValues = new HashMap<>();
 350         Map<String, String> values = (Map<String, String>) columnValue;
 351         if (values != null && values.keySet().contains(planId)) {
 352             String valueString = values.get(planId);
 353             String tempValueString = valueString.replaceAll("\\{", "").replaceAll("\"", "").replaceAll("\\}", "");
 354             String[] elements = tempValueString.split(",");
 355             for (String str : elements) {
 356                 String[] keyValue = str.split(":");
 357                 if ((changeOfStatus.keySet().contains(keyValue[0].replaceAll("\\s", ""))))
 358                 keyValue[1] = changeOfStatus.get(keyValue[0].replaceAll("\\s", ""));
 359                 finalValues.put(keyValue[0], keyValue[1]);
 360             }
 361         }
 362         return finalValues;
 363
 364     }
 365
 366 }