com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser Java Examples

The following examples show how to use com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: MySQLDialect.java    From Zebra with Apache License 2.0 6 votes vote down vote up
@Override
public String getCountSql(String sql) {
	SQLStatementParser parser = new MySqlStatementParser(sql);
	List<SQLStatement> stmtList = parser.parseStatementList();

	// 将AST通过visitor输出
	StringBuilder out = new StringBuilder();
	MysqlCountOutputVisitor visitor = new MysqlCountOutputVisitor(out);

	for (SQLStatement stmt : stmtList) {
		if (stmt instanceof SQLSelectStatement) {
			stmt.accept(visitor);
			out.append(";");
		}
	}

	return out.toString();
}
 
Example #2
Source File: DefaultRouteStrategy.java    From dble with GNU General Public License v2.0 6 votes vote down vote up
@Override
public SQLStatement parserSQL(String originSql) throws SQLSyntaxErrorException {
    SQLStatementParser parser = new MySqlStatementParser(originSql);

    /**
     * thrown SQL SyntaxError if parser error
     */
    try {
        List<SQLStatement> list = parser.parseStatementList();
        if (list.size() > 1) {
            throw new SQLSyntaxErrorException("MultiQueries is not supported,use single query instead ");
        }
        return list.get(0);
    } catch (Exception t) {
        LOGGER.info("routeNormalSqlWithAST", t);
        if (t.getMessage() != null) {
            throw new SQLSyntaxErrorException(t.getMessage());
        } else {
            throw new SQLSyntaxErrorException(t);
        }
    }
}
 
Example #3
Source File: RouterUtil.java    From Mycat2 with GNU General Public License v3.0 6 votes vote down vote up
private  static String changeCreateTable(SchemaConfig schema,String tableName,String sql) {
	if (schema.getTables().containsKey(tableName)) {
		MySqlStatementParser parser = new MySqlStatementParser(sql);
		SQLStatement insertStatement = parser.parseStatement();
		if (insertStatement instanceof MySqlCreateTableStatement) {
			TableConfig tableConfig = schema.getTables().get(tableName);
			AbstractPartitionAlgorithm algorithm = tableConfig.getRule().getRuleAlgorithm();
			if (algorithm instanceof SlotFunction) {
				SQLColumnDefinition column = new SQLColumnDefinition();
				column.setDataType(new SQLCharacterDataType("int"));
				column.setName(new SQLIdentifierExpr("_slot"));
				column.setComment(new SQLCharExpr("自动迁移算法slot,禁止修改"));
				((SQLCreateTableStatement) insertStatement).getTableElementList().add(column);
				return insertStatement.toString();

			}
		}

	}
	return sql;
}
 
Example #4
Source File: ReplaceTableNameVisitorTest.java    From baymax with Apache License 2.0 6 votes vote down vote up
public void test(String sql, String logicName, String targetName){

        MySqlStatementParser parser = new MySqlStatementParser(sql);
        SQLStatement statement = parser.parseStatement();

        ReplaceTableNameVisitor replaceVisitor = new ReplaceTableNameVisitor(logicName, targetName);
        StringBuilder out = new StringBuilder();
        MySqlOutputVisitor outPutVisitor = new MySqlOutputVisitor(out);
        // 替换表名
        statement.accept(replaceVisitor);
        // 输出sql
        statement.accept(outPutVisitor);

        System.out.println();
        System.out.println(sql);
        System.out.println(out.toString());
        // 输出sql后要还原statement以便下次替换表名
        replaceVisitor.reset();
    }
 
Example #5
Source File: SqlVisitorTest.java    From baymax with Apache License 2.0 6 votes vote down vote up
public void test(String sql) throws Exception {

        MySqlStatementParser parser = new MySqlStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();

        SqlVisitor visitor = new SqlVisitor(null);
        statementList.get(0).accept(visitor);

        System.out.println();
        System.out.println(sql);
        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
        System.out.println("alias : " + visitor.getAliasMap());
        System.out.println("conditions : " + visitor.getConditions());
        System.out.println("columns : " + visitor.getColumns());


    }
 
Example #6
Source File: ExplainHandler.java    From dble with GNU General Public License v2.0 6 votes vote down vote up
private static boolean isInsertSeq(ServerConnection c, String stmt, SchemaConfig schema) throws SQLException {
    SQLStatementParser parser = new MySqlStatementParser(stmt);
    MySqlInsertStatement statement = (MySqlInsertStatement) parser.parseStatement();
    String schemaName = schema == null ? null : schema.getName();
    SQLExprTableSource tableSource = statement.getTableSource();
    SchemaUtil.SchemaInfo schemaInfo = SchemaUtil.getSchemaInfo(c.getUser(), schemaName, tableSource);
    String tableName = schemaInfo.getTable();
    schema = schemaInfo.getSchemaConfig();
    TableConfig tableConfig = schema.getTables().get(tableName);
    if (tableConfig == null) {
        return false;
    } else if (tableConfig.isAutoIncrement()) {
        return true;
    }
    return false;
}
 
Example #7
Source File: SelectHandler.java    From dble with GNU General Public License v2.0 6 votes vote down vote up
private static boolean isSupportSelect(String stmt) {
    SQLStatementParser parser = new MySqlStatementParser(stmt);
    SQLStatement statement = parser.parseStatement();
    if (!(statement instanceof SQLSelectStatement)) {
        return false;
    }

    SQLSelectQuery sqlSelectQuery = ((SQLSelectStatement) statement).getSelect().getQuery();
    if (!(sqlSelectQuery instanceof MySqlSelectQueryBlock)) {
        return false;
    }
    MySqlSelectQueryBlock selectQueryBlock = (MySqlSelectQueryBlock) sqlSelectQuery;
    SQLTableSource mysqlFrom = selectQueryBlock.getFrom();
    if (mysqlFrom != null) {
        return false;
    }
    for (SQLSelectItem item : selectQueryBlock.getSelectList()) {
        SQLExpr selectItem = item.getExpr();
        if (!isVariantRef(selectItem)) {
            return false;
        }
    }
    return true;
}
 
Example #8
Source File: OrVisitorTest.java    From baymax with Apache License 2.0 6 votes vote down vote up
private List<List<TableStat.Condition>> test(String sql){
    MySqlStatementParser parser = new MySqlStatementParser(sql);

    SQLStatement statemen = parser.parseStatement();

    List<Object> parameters = new ArrayList<Object>();

    parameters.add(10);

    OrVisitor visitor = new OrVisitor();
    OrVisitor.OrEntity orEntity = new OrVisitor.OrEntity(visitor, statemen);
    List<List<TableStat.Condition>> conditions = orEntity.getOrConditions();
    System.out.println();
    System.out.println(sql);
    System.out.println(conditions);
    System.out.println();
    return conditions;
}
 
Example #9
Source File: DruidMysqlRouteStrategyTest.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
public void testModifySQLLimit() throws Exception {
    final SchemaConfig schema = schemaMap.get("TESTDB");

    String sql = null;
    RouteResultset rrs = null;
    //SQL span multi datanode 
    sql = "select * from orders limit 2,3";
    rrs = routeStrategy.route(schema, ServerParse.SELECT, sql, null, cachePool);
    Assert.assertEquals(true, rrs.isSqlRouteCacheAble());
    Map<String, RouteResultsetNode> nodeMap = getNodeMap(rrs, 2);
    NodeNameAsserter nameAsserter = new NodeNameAsserter("dn2",
            "dn1");
    nameAsserter.assertRouteNodeNames(nodeMap.keySet());
    Assert.assertEquals(3, rrs.getLimitSize());


    MySqlStatementParser parser = new MySqlStatementParser("SELECT * FROM orders LIMIT 0,5");
    SQLStatement statement = parser.parseStatement();

    Assert.assertEquals(statement.toString(), rrs.getNodes()[0].getStatement());

    //SQL  not span multi datanode
    sql = "select * from customer where id=10000 limit 2,3";
    rrs = routeStrategy.route(schema, ServerParse.SELECT, sql, null, cachePool);
    Assert.assertEquals(true, rrs.isSqlRouteCacheAble());
    nodeMap = getNodeMap(rrs, 1);
    nameAsserter = new NodeNameAsserter("dn1");
    nameAsserter.assertRouteNodeNames(nodeMap.keySet());
    Assert.assertEquals(3, rrs.getLimitSize());
    Assert.assertEquals("select * from customer where id=10000 limit 2,3", rrs.getNodes()[0].getStatement());


}
 
Example #10
Source File: MySqlSqlParser.java    From baymax with Apache License 2.0 5 votes vote down vote up
@Override
public void init(String sql, List<Object> parameters) {
    this.parser		    = new MySqlStatementParser(sql);
    this.visitor 		= new SqlVisitor(parameters);
    this.parameters     = parameters;
    this.sql            = sql;
}
 
Example #11
Source File: DruidMysqlRouteStrategyTest.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
public void testModifySQLLimit() throws Exception {
    final SchemaConfig schema = schemaMap.get("TESTDB");

    String sql = null;
    RouteResultset rrs = null;
    //SQL span multi datanode 
    sql = "select * from orders limit 2,3";
    rrs = routeStrategy.route(new SystemConfig(), schema, ServerParse.SELECT, sql, null, null, cachePool);
    Assert.assertEquals(true, rrs.isCacheAble());
    Map<String, RouteResultsetNode> nodeMap = getNodeMap(rrs, 2);
    NodeNameAsserter nameAsserter = new NodeNameAsserter("dn2",
            "dn1");
    nameAsserter.assertRouteNodeNames(nodeMap.keySet());
    Assert.assertEquals(3, rrs.getLimitSize());


    MySqlStatementParser parser = new MySqlStatementParser("SELECT * FROM orders LIMIT 0,5");
    SQLStatement statement = parser.parseStatement();

    Assert.assertEquals(statement.toString(), rrs.getNodes()[0].getStatement());

    //SQL  not span multi datanode
    sql = "select * from customer where id=10000 limit 2,3";
    rrs = routeStrategy.route(new SystemConfig(), schema, ServerParse.SELECT, sql, null, null, cachePool);
    Assert.assertEquals(true, rrs.isCacheAble());
    nodeMap = getNodeMap(rrs, 1);
    nameAsserter = new NodeNameAsserter("dn1");
    nameAsserter.assertRouteNodeNames(nodeMap.keySet());
    Assert.assertEquals(3, rrs.getLimitSize());
    Assert.assertEquals("select * from customer where id=10000 limit 2,3", rrs.getNodes()[0].getStatement());


}
 
Example #12
Source File: DruidMysqlCreateTableTest.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
private boolean isInsertHasSlot(String sql) {
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    MySqlInsertStatement insertStatement = (MySqlInsertStatement) parser.parseStatement();
    List<SQLExpr> cc = insertStatement.getColumns();
    for (SQLExpr sqlExpr : cc) {
        SQLIdentifierExpr c = (SQLIdentifierExpr) sqlExpr;
        if ("_slot".equalsIgnoreCase(c.getName()) && cc.size() == insertStatement.getValues().getValues().size())
            return true;
    }
    return false;
}
 
Example #13
Source File: AbstractParser.java    From dts with Apache License 2.0 5 votes vote down vote up
protected CommitInfo parse(StatementAdapter statementAdapter) throws SQLException {
    CommitInfo commitInfo = new CommitInfo();
    String sql = statementAdapter.getSql();
    T sqlParseStatement = (T)new MySqlStatementParser(sql).parseStatement();

    commitInfo.setSqlType(getSqlType());

    commitInfo.setWhere(getWhere(sqlParseStatement));

    commitInfo.setSql(sql);
    if (statementAdapter instanceof PreparedStatementAdapter) {
        PreparedStatementAdapter preparedStatementAdapter = (PreparedStatementAdapter)statementAdapter;
        commitInfo.setSqlParams(preparedStatementAdapter.getParamsList());
        commitInfo.setWhereParams(getWhereParams(preparedStatementAdapter.getParamsList(), sqlParseStatement));
    }

    TableMetaInfo tableMetaInfo =
        TableMetaUtils.getTableMetaInfo(statementAdapter.getConnection(), getTableName(sqlParseStatement));
    if (CollectionUtils.isEmpty(tableMetaInfo.getPrimaryKeyName())) {
        return null;
    }
    TableDataInfo originValue =
        getOriginValue(commitInfo.getWhereParams(), sqlParseStatement, statementAdapter, tableMetaInfo);
    commitInfo.setOriginalValue(originValue);

    TableDataInfo presentValue =
        getPresentValue(commitInfo.getSqlParams(), sqlParseStatement, statementAdapter, tableMetaInfo);
    commitInfo.setPresentValue(presentValue);
    return commitInfo;

}
 
Example #14
Source File: SetHandler.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
private static SQLStatement parseSQL(String stmt) throws SQLSyntaxErrorException {
    SQLStatementParser parser = new MySqlStatementParser(stmt);
    try {
        return parser.parseStatement();
    } catch (Exception t) {
        if (t.getMessage() != null) {
            throw new SQLSyntaxErrorException(t.getMessage());
        } else {
            throw new SQLSyntaxErrorException(t);
        }
    }
}
 
Example #15
Source File: QueryConditionAnalyzer.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
/**
 * parseConditionValues
 *
 * @param sql
 * @param table
 * @param column
 * @return
 */
public List<Object> parseConditionValues(String sql, String table, String column) {

    List<Object> values = null;

    if (sql != null && table != null && QueryConditionAnalyzer.this.columnName != null) {

        values = new ArrayList<>();

        MySqlStatementParser parser = new MySqlStatementParser(sql);
        SQLStatement stmt = parser.parseStatement();

        ServerSchemaStatVisitor visitor = new ServerSchemaStatVisitor();
        stmt.accept(visitor);

        String currentTable = visitor.getCurrentTable();
        if (table.equalsIgnoreCase(currentTable)) {

            List<Condition> conditions = visitor.getConditions();
            for (Condition condition : conditions) {

                String ccN = condition.getColumn().getName();
                ccN = fixName(ccN);

                if (column.equalsIgnoreCase(ccN)) {
                    List<Object> ccVL = condition.getValues();
                    values.addAll(ccVL);
                }
            }
        }
    }
    return values;
}
 
Example #16
Source File: DruidUpdateParserTest.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
public void throwExceptionParse(String sql, boolean throwException) throws NoSuchMethodException {
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    List<SQLStatement> statementList = parser.parseStatementList();
    SQLStatement sqlStatement = statementList.get(0);
    MySqlUpdateStatement update = (MySqlUpdateStatement) sqlStatement;
    SchemaConfig schemaConfig = mock(SchemaConfig.class);
    Map<String, TableConfig> tables = mock(Map.class);
    TableConfig tableConfig = mock(TableConfig.class);
    String tableName = "hotnews";
    when((schemaConfig).getTables()).thenReturn(tables);
    when(tables.get(tableName)).thenReturn(tableConfig);
    when(tableConfig.getParentTC()).thenReturn(null);
    RouteResultset routeResultset = new RouteResultset(sql, 11);
    Class c = DruidUpdateParser.class;
    Method method = c.getDeclaredMethod("confirmShardColumnNotUpdated", new Class[]{SQLUpdateStatement.class, SchemaConfig.class, String.class, String.class, String.class, RouteResultset.class});
    method.setAccessible(true);
    try {
        method.invoke(c.newInstance(), update, schemaConfig, tableName, "ID", "", routeResultset);
        if (throwException) {
            System.out.println("Not passed without exception is not correct");
            Assert.assertTrue(false);
        } else {
            System.out.println("Passed without exception. Maybe the partition key exists in update statement,but not update in fact");
            Assert.assertTrue(true);
        }
    } catch (Exception e) {
        if (throwException) {
            System.out.println(e.getCause().getClass());
            Assert.assertTrue(e.getCause() instanceof SQLNonTransientException);
            System.out.println("SQLNonTransientException is expected");
        } else {
            System.out.println("need checked");
            Assert.assertTrue(false);
        }
    }
}
 
Example #17
Source File: ServerSchemaStatVisitorTest.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
private List<WhereUnit> getAllWhereUnit(String sql) {
    SQLStatementParser parser = new MySqlStatementParser(sql);

    ServerSchemaStatVisitor visitor;
    //throw exception
    try {
        SQLStatement statement = parser.parseStatement();
        visitor = new ServerSchemaStatVisitor();
        statement.accept(visitor);
        return visitor.getAllWhereUnit();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return  null;
}
 
Example #18
Source File: TestMySQLPlanNodeVisitor.java    From dble with GNU General Public License v2.0 5 votes vote down vote up
private PlanNode getPlanNode(String sql) {
    SQLStatementParser parser = new MySqlStatementParser(sql);
    SQLSelectStatement ast = (SQLSelectStatement) parser.parseStatement();
    MySQLPlanNodeVisitor visitor = new MySQLPlanNodeVisitor("TESTDB", 33, null, true, null);
    visitor.visit(ast);
    return visitor.getTableNode();
}
 
Example #19
Source File: DruidMysqlCreateTableTest.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
private boolean isInsertHasSlot(String sql)
{
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    MySqlInsertStatement insertStatement= (MySqlInsertStatement)parser.parseStatement();
 List<SQLExpr> cc= insertStatement.getColumns();
    for (SQLExpr sqlExpr : cc) {
        SQLIdentifierExpr c= (SQLIdentifierExpr) sqlExpr;
        if("_slot".equalsIgnoreCase(c.getName())   &&cc.size()==insertStatement.getValues().getValues().size())    return true;
    }
    return false;
}
 
Example #20
Source File: DruidUpdateParserTest.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
public void throwExceptionParse(String sql, boolean throwException) throws NoSuchMethodException {
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    List<SQLStatement> statementList = parser.parseStatementList();
    SQLStatement sqlStatement = statementList.get(0);
    MySqlUpdateStatement update = (MySqlUpdateStatement) sqlStatement;
    SchemaConfig schemaConfig = mock(SchemaConfig.class);
    Map<String, TableConfig> tables = mock(Map.class);
    TableConfig tableConfig = mock(TableConfig.class);
    String tableName = "hotnews";
    when((schemaConfig).getTables()).thenReturn(tables);
    when(tables.get(tableName)).thenReturn(tableConfig);
    when(tableConfig.getParentTC()).thenReturn(null);
    RouteResultset routeResultset = new RouteResultset(sql, 11);
    Class c = DruidUpdateParser.class;
    Method method = c.getDeclaredMethod("confirmShardColumnNotUpdated", new Class[]{SQLUpdateStatement.class, SchemaConfig.class, String.class, String.class, String.class, RouteResultset.class});
    method.setAccessible(true);
    try {
        method.invoke(c.newInstance(), update, schemaConfig, tableName, "ID", "", routeResultset);
        if (throwException) {
            System.out.println("未抛异常,解析通过则不对!");
            Assert.assertTrue(false);
        } else {
            System.out.println("未抛异常,解析通过,此情况分片字段可能在update语句中但是实际不会被更新");
            Assert.assertTrue(true);
        }
    } catch (Exception e) {
        if (throwException) {
            System.out.println(e.getCause().getClass());
            Assert.assertTrue(e.getCause() instanceof SQLNonTransientException);
            System.out.println("抛异常原因为SQLNonTransientException则正确");
        } else {
            System.out.println("抛异常,需要检查");
            Assert.assertTrue(false);
        }
    }
}
 
Example #21
Source File: QueryConditionAnalyzer.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
/**
 * 解析 SQL 获取指定表及条件列的值
 * 
 * @param sql
 * @param tableName
 * @param colnumName
 * @return
 */
public List<Object> parseConditionValues(String sql, String tableName, String colnumName)  {
	
	List<Object> values = null;
	
	if ( sql != null && tableName != null && columnName != null ) {
	
		values = new ArrayList<Object>();
		
		MySqlStatementParser parser = new MySqlStatementParser(sql);
		SQLStatement stmt = parser.parseStatement();
		
		MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
		stmt.accept(visitor);
		
		String currentTable = visitor.getCurrentTable();
		if ( tableName.equalsIgnoreCase( currentTable ) ) {
			
			List<Condition> conditions = visitor.getConditions();
			for(Condition condition: conditions) {
				
				String ccN = condition.getColumn().getName();
				ccN = fixName(ccN);
				
				if ( colnumName.equalsIgnoreCase( ccN ) ) {					
					List<Object> ccVL = condition.getValues();
					values.addAll( ccVL );
				}
			}
		}				
	}
	return values;
}
 
Example #22
Source File: ExplainHandler.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
private static boolean isMycatSeq(String stmt, SchemaConfig schema)
  {
      if(pattern.matcher(stmt).find()) {
	return true;
}
      SQLStatementParser parser =new MySqlStatementParser(stmt);
      MySqlInsertStatement statement = (MySqlInsertStatement) parser.parseStatement();
      String tableName=   statement.getTableName().getSimpleName();
      TableConfig tableConfig= schema.getTables().get(tableName.toUpperCase());
      if(tableConfig==null) {
	return false;
}
      if(tableConfig.isAutoIncrement())
      {
          boolean isHasIdInSql=false;
          String primaryKey = tableConfig.getPrimaryKey();
          List<SQLExpr> columns = statement.getColumns();
          for (SQLExpr column : columns)
          {
              String columnName = column.toString();
              if(primaryKey.equalsIgnoreCase(columnName))
              {
                  isHasIdInSql = true;
                  break;
              }
          }
          if(!isHasIdInSql) {
		return true;
	}
      }


      return false;
  }
 
Example #23
Source File: ShareJoin.java    From Mycat2 with GNU General Public License v3.0 5 votes vote down vote up
public void route(SystemConfig sysConfig, SchemaConfig schema,int sqlType, String realSQL, String charset, ServerConnection sc,	LayerCachePool cachePool) {
	int rs = ServerParse.parse(realSQL);
	this.sqltype = rs & 0xff;
	this.sysConfig=sysConfig; 
	this.schema=schema;
	this.charset=charset; 
	this.sc=sc;	
	this.cachePool=cachePool;		
	try {
	 //  RouteStrategy routes=RouteStrategyFactory.getRouteStrategy();	
	  // rrs =RouteStrategyFactory.getRouteStrategy().route(sysConfig, schema, sqlType2, realSQL,charset, sc, cachePool);		   
		MySqlStatementParser parser = new MySqlStatementParser(realSQL);			
		SQLStatement statement = parser.parseStatement();
		if(statement instanceof SQLSelectStatement) {
		   SQLSelectStatement st=(SQLSelectStatement)statement;
		   SQLSelectQuery sqlSelectQuery =st.getSelect().getQuery();
			if(sqlSelectQuery instanceof MySqlSelectQueryBlock) {
				MySqlSelectQueryBlock mysqlSelectQuery = (MySqlSelectQueryBlock)sqlSelectQuery;
				joinParser=new JoinParser(mysqlSelectQuery,realSQL);
				joinParser.parser();
			}	
		}
	   /*	
	   if (routes instanceof DruidMysqlRouteStrategy) {
		   SQLSelectStatement st=((DruidMysqlRouteStrategy) routes).getSQLStatement();
		   SQLSelectQuery sqlSelectQuery =st.getSelect().getQuery();
			if(sqlSelectQuery instanceof MySqlSelectQueryBlock) {
				MySqlSelectQueryBlock mysqlSelectQuery = (MySqlSelectQueryBlock)st.getSelect().getQuery();
				joinParser=new JoinParser(mysqlSelectQuery,realSQL);
				joinParser.parser();
			}
	   }
	   */
	} catch (Exception e) {
	
	}
}
 
Example #24
Source File: SqlParser.java    From es_data_export with Apache License 2.0 5 votes vote down vote up
public static boolean isInsertSql(String sql){
	MySqlStatementParser parser = new MySqlStatementParser(sql);
	SQLStatement statement = parser.parseStatement();
	if(statement instanceof SQLInsertStatement){
		SQLInsertStatement insert =(SQLInsertStatement) statement; 
		tableName = insert.getTableName().toString();
		return true;
	}else if(statement instanceof SQLUpdateStatement){
		SQLUpdateStatement update =(SQLUpdateStatement) statement; 
		tableName = update.getTableName().toString();
		return true;
	}
	return false;
}
 
Example #25
Source File: AutoCompensateHandler.java    From txle with Apache License 2.0 5 votes vote down vote up
@Override
public void prepareCompensationAfterExecuting(PreparedStatement delegate, String executeSql, Map<String, Object> standbyParams) throws SQLException {
    String globalTxId = CurrentThreadOmegaContext.getGlobalTxIdFromCurThread();
    if (globalTxId == null || globalTxId.length() == 0) {
        return;
    }
    String localTxId = CurrentThreadOmegaContext.getLocalTxIdFromCurThread();
    if (localTxId == null || localTxId.length() == 0) {
        return;
    }

    // To parse SQL by SQLParser tools from Druid.
    MySqlStatementParser parser = new MySqlStatementParser(executeSql);
    SQLStatement sqlStatement = parser.parseStatement();
    if (sqlStatement instanceof MySqlSelectIntoStatement) {
        return;
    }

    if (standbyParams == null) {
        standbyParams = new HashMap<>(8);
    }

    String server = CurrentThreadOmegaContext.getServiceNameFromCurThread();

    // To set a relationship between localTxId and datSourceInfo, in order to determine to use the relative dataSource for localTxId when it need be compensated.
    DatabaseMetaData databaseMetaData = delegate.getConnection().getMetaData();
    String dburl = databaseMetaData.getURL(), dbusername = databaseMetaData.getUserName(), dbdrivername = databaseMetaData.getDriverName();
    DataSourceMappingCache.putLocalTxIdAndDataSourceInfo(localTxId, dburl, dbusername, dbdrivername);
    // To construct kafka message.
    standbyParams.put("dbdrivername", dbdrivername);
    standbyParams.put("dburl", dburl);
    standbyParams.put("dbusername", dbusername);

    if (sqlStatement instanceof MySqlInsertStatement) {
        AutoCompensateInsertHandler.newInstance().prepareCompensationAfterInserting(delegate, sqlStatement, executeSql, globalTxId, localTxId, server, standbyParams);
    } else if (sqlStatement instanceof MySqlUpdateStatement) {
        AutoCompensateUpdateHandler.newInstance().prepareCompensationAfterUpdating(delegate, sqlStatement, executeSql, globalTxId, localTxId, server, standbyParams);
    }
}
 
Example #26
Source File: SqlToCountSqlRewrite.java    From Zebra with Apache License 2.0 5 votes vote down vote up
public String rewrite(String sql, List<ParamContext> countParams) {
	MySqlStatementParser parser = new MySqlStatementParser(sql);
	SQLStatement stmt = parser.parseStatement();
	RewriteSqlToCountSqlVisitor visitor = new RewriteSqlToCountSqlVisitor(countParams);
	stmt.accept(visitor);

	return stmt.toString();
}
 
Example #27
Source File: UpdateRollback.java    From dts with Apache License 2.0 5 votes vote down vote up
@Override
protected boolean canRollback(CommitInfo commitInfo, Connection connection) throws SQLException {
    String sql = commitInfo.getSql();
    SQLUpdateStatement sqlParseStatement = (SQLUpdateStatement)new MySqlStatementParser(sql).parseStatement();
    TableMetaInfo tableMetaInfo =
        TableMetaUtils.getTableMetaInfo(connection, sqlParseStatement.getTableName().getSimpleName());
    TableDataInfo dbValue = UpdateParser.getInstance().getOriginValue(commitInfo.getWhereParams(),
        sqlParseStatement, connection, tableMetaInfo);
    if (commitInfo.getOriginalValue().getLine().size() == 0) {
        return false;
    }
    for (TxcLine txcLine : dbValue.getLine()) {
        txcLine.setPrimaryKeyValues(commitInfo.getPresentValue().getLine().get(0).getPrimaryKeyValues());
        boolean diff = DiffUtils.diff(commitInfo.getPresentValue().getLine().get(0), txcLine);
        if (!diff) {
            try {
                logger.error("data conflict, before:{},after:{}",
                    DiffUtils.getObjectMapper().writeValueAsString(commitInfo.getPresentValue().getLine().get(0)),
                    DiffUtils.getObjectMapper().writeValueAsString(txcLine));
            } catch (Exception e) {
                logger.error(e.getMessage(), e);
            }
            return false;
        }
    }
    return true;
}
 
Example #28
Source File: DruidMysqlRouteStrategyTest.java    From dble with GNU General Public License v2.0 4 votes vote down vote up
private String formatSql(String sql) {
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    SQLStatement stmt = parser.parseStatement();
    return stmt.toString();
}
 
Example #29
Source File: ShowHandler.java    From dble with GNU General Public License v2.0 4 votes vote down vote up
private static boolean isSupportShow(String stmt) {
    SQLStatementParser parser = new MySqlStatementParser(stmt);
    SQLStatement statement = parser.parseStatement();
    return statement instanceof MySqlShowWarningsStatement || statement instanceof MySqlShowVariantsStatement;
}
 
Example #30
Source File: DruidMysqlCreateTableTest.java    From dble with GNU General Public License v2.0 4 votes vote down vote up
public boolean parseSql(String sql) {
    MySqlStatementParser parser = new MySqlStatementParser(sql);
    SQLStatement statement = parser.parseStatement();
    return hasColumn(statement);
}