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