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Example 1 with SQLAlterTableRename

use of com.alibaba.druid.sql.ast.statement.SQLAlterTableRename in project canal by alibaba.

the class DruidDdlParser method parse.

public static List<DdlResult> parse(String queryString, String schmeaName) {
    List<SQLStatement> stmtList = null;
    try {
        stmtList = SQLUtils.parseStatements(queryString, JdbcConstants.MYSQL, false);
    } catch (ParserException e) {
        // 可能存在一些SQL是不支持的,比如存储过程
        DdlResult ddlResult = new DdlResult();
        ddlResult.setType(EventType.QUERY);
        return Arrays.asList(ddlResult);
    }
    List<DdlResult> ddlResults = new ArrayList<>();
    for (SQLStatement statement : stmtList) {
        if (statement instanceof SQLCreateTableStatement) {
            DdlResult ddlResult = new DdlResult();
            SQLCreateTableStatement createTable = (SQLCreateTableStatement) statement;
            processName(ddlResult, schmeaName, createTable.getName(), false);
            ddlResult.setType(EventType.CREATE);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLAlterTableStatement) {
            SQLAlterTableStatement alterTable = (SQLAlterTableStatement) statement;
            if (alterTable.getTableOptions().size() > 0) {
                DdlResult ddlResult = new DdlResult();
                processName(ddlResult, schmeaName, alterTable.getName(), false);
                ddlResult.setType(EventType.ALTER);
                ddlResults.add(ddlResult);
            }
            for (SQLAlterTableItem item : alterTable.getItems()) {
                if (item instanceof SQLAlterTableRename) {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), true);
                    processName(ddlResult, schmeaName, ((SQLAlterTableRename) item).getToName(), false);
                    ddlResult.setType(EventType.RENAME);
                    ddlResults.add(ddlResult);
                } else if (item instanceof SQLAlterTableAddIndex) {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), false);
                    ddlResult.setType(EventType.CINDEX);
                    ddlResults.add(ddlResult);
                } else if (item instanceof SQLAlterTableDropIndex || item instanceof SQLAlterTableDropKey) {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), false);
                    ddlResult.setType(EventType.DINDEX);
                    ddlResults.add(ddlResult);
                } else if (item instanceof SQLAlterTableAddConstraint) {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), false);
                    SQLConstraint constraint = ((SQLAlterTableAddConstraint) item).getConstraint();
                    if (constraint instanceof SQLUnique) {
                        ddlResult.setType(EventType.CINDEX);
                        ddlResults.add(ddlResult);
                    }
                } else if (item instanceof SQLAlterTableDropConstraint) {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), false);
                    ddlResult.setType(EventType.DINDEX);
                    ddlResults.add(ddlResult);
                } else {
                    DdlResult ddlResult = new DdlResult();
                    processName(ddlResult, schmeaName, alterTable.getName(), false);
                    ddlResult.setType(EventType.ALTER);
                    ddlResults.add(ddlResult);
                }
            }
        } else if (statement instanceof SQLDropTableStatement) {
            SQLDropTableStatement dropTable = (SQLDropTableStatement) statement;
            for (SQLExprTableSource tableSource : dropTable.getTableSources()) {
                DdlResult ddlResult = new DdlResult();
                processName(ddlResult, schmeaName, tableSource.getExpr(), false);
                ddlResult.setType(EventType.ERASE);
                ddlResults.add(ddlResult);
            }
        } else if (statement instanceof SQLCreateIndexStatement) {
            SQLCreateIndexStatement createIndex = (SQLCreateIndexStatement) statement;
            SQLTableSource tableSource = createIndex.getTable();
            DdlResult ddlResult = new DdlResult();
            processName(ddlResult, schmeaName, ((SQLExprTableSource) tableSource).getExpr(), false);
            ddlResult.setType(EventType.CINDEX);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLDropIndexStatement) {
            SQLDropIndexStatement dropIndex = (SQLDropIndexStatement) statement;
            SQLExprTableSource tableSource = dropIndex.getTableName();
            DdlResult ddlResult = new DdlResult();
            processName(ddlResult, schmeaName, tableSource.getExpr(), false);
            ddlResult.setType(EventType.DINDEX);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLTruncateStatement) {
            SQLTruncateStatement truncate = (SQLTruncateStatement) statement;
            for (SQLExprTableSource tableSource : truncate.getTableSources()) {
                DdlResult ddlResult = new DdlResult();
                processName(ddlResult, schmeaName, tableSource.getExpr(), false);
                ddlResult.setType(EventType.TRUNCATE);
                ddlResults.add(ddlResult);
            }
        } else if (statement instanceof MySqlRenameTableStatement) {
            MySqlRenameTableStatement rename = (MySqlRenameTableStatement) statement;
            for (Item item : rename.getItems()) {
                DdlResult ddlResult = new DdlResult();
                processName(ddlResult, schmeaName, item.getName(), true);
                processName(ddlResult, schmeaName, item.getTo(), false);
                ddlResult.setType(EventType.RENAME);
                ddlResults.add(ddlResult);
            }
        } else if (statement instanceof SQLInsertStatement) {
            DdlResult ddlResult = new DdlResult();
            SQLInsertStatement insert = (SQLInsertStatement) statement;
            processName(ddlResult, schmeaName, insert.getTableName(), false);
            ddlResult.setType(EventType.INSERT);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLUpdateStatement) {
            DdlResult ddlResult = new DdlResult();
            SQLUpdateStatement update = (SQLUpdateStatement) statement;
            // 拿到的表名可能为null,比如update a,b set a.id=x
            processName(ddlResult, schmeaName, update.getTableName(), false);
            ddlResult.setType(EventType.UPDATE);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLDeleteStatement) {
            DdlResult ddlResult = new DdlResult();
            SQLDeleteStatement delete = (SQLDeleteStatement) statement;
            // 拿到的表名可能为null,比如delete a,b from a where a.id = b.id
            processName(ddlResult, schmeaName, delete.getTableName(), false);
            ddlResult.setType(EventType.DELETE);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLCreateDatabaseStatement) {
            SQLCreateDatabaseStatement create = (SQLCreateDatabaseStatement) statement;
            DdlResult ddlResult = new DdlResult();
            ddlResult.setType(EventType.QUERY);
            processName(ddlResult, create.getDatabaseName(), null, false);
            ddlResults.add(ddlResult);
        } else if (statement instanceof SQLDropDatabaseStatement) {
            SQLDropDatabaseStatement drop = (SQLDropDatabaseStatement) statement;
            DdlResult ddlResult = new DdlResult();
            ddlResult.setType(EventType.QUERY);
            processName(ddlResult, drop.getDatabaseName(), null, false);
            ddlResults.add(ddlResult);
        }
    }
    return ddlResults;
}
Also used : SQLCreateTableStatement(com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement) SQLAlterTableAddConstraint(com.alibaba.druid.sql.ast.statement.SQLAlterTableAddConstraint) ArrayList(java.util.ArrayList) SQLAlterTableDropIndex(com.alibaba.druid.sql.ast.statement.SQLAlterTableDropIndex) SQLAlterTableStatement(com.alibaba.druid.sql.ast.statement.SQLAlterTableStatement) SQLDropDatabaseStatement(com.alibaba.druid.sql.ast.statement.SQLDropDatabaseStatement) SQLUnique(com.alibaba.druid.sql.ast.statement.SQLUnique) SQLAlterTableDropKey(com.alibaba.druid.sql.ast.statement.SQLAlterTableDropKey) SQLStatement(com.alibaba.druid.sql.ast.SQLStatement) SQLTableSource(com.alibaba.druid.sql.ast.statement.SQLTableSource) SQLAlterTableItem(com.alibaba.druid.sql.ast.statement.SQLAlterTableItem) SQLDropTableStatement(com.alibaba.druid.sql.ast.statement.SQLDropTableStatement) Item(com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlRenameTableStatement.Item) SQLAlterTableItem(com.alibaba.druid.sql.ast.statement.SQLAlterTableItem) SQLCreateDatabaseStatement(com.alibaba.druid.sql.ast.statement.SQLCreateDatabaseStatement) SQLAlterTableRename(com.alibaba.druid.sql.ast.statement.SQLAlterTableRename) SQLInsertStatement(com.alibaba.druid.sql.ast.statement.SQLInsertStatement) MySqlRenameTableStatement(com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlRenameTableStatement) SQLDropIndexStatement(com.alibaba.druid.sql.ast.statement.SQLDropIndexStatement) ParserException(com.alibaba.druid.sql.parser.ParserException) SQLConstraint(com.alibaba.druid.sql.ast.statement.SQLConstraint) SQLAlterTableDropConstraint(com.alibaba.druid.sql.ast.statement.SQLAlterTableDropConstraint) SQLUpdateStatement(com.alibaba.druid.sql.ast.statement.SQLUpdateStatement) SQLAlterTableAddIndex(com.alibaba.druid.sql.ast.statement.SQLAlterTableAddIndex) SQLTruncateStatement(com.alibaba.druid.sql.ast.statement.SQLTruncateStatement) SQLDeleteStatement(com.alibaba.druid.sql.ast.statement.SQLDeleteStatement) SQLExprTableSource(com.alibaba.druid.sql.ast.statement.SQLExprTableSource) SQLCreateIndexStatement(com.alibaba.druid.sql.ast.statement.SQLCreateIndexStatement)

Aggregations

SQLStatement (com.alibaba.druid.sql.ast.SQLStatement)1 SQLAlterTableAddConstraint (com.alibaba.druid.sql.ast.statement.SQLAlterTableAddConstraint)1 SQLAlterTableAddIndex (com.alibaba.druid.sql.ast.statement.SQLAlterTableAddIndex)1 SQLAlterTableDropConstraint (com.alibaba.druid.sql.ast.statement.SQLAlterTableDropConstraint)1 SQLAlterTableDropIndex (com.alibaba.druid.sql.ast.statement.SQLAlterTableDropIndex)1 SQLAlterTableDropKey (com.alibaba.druid.sql.ast.statement.SQLAlterTableDropKey)1 SQLAlterTableItem (com.alibaba.druid.sql.ast.statement.SQLAlterTableItem)1 SQLAlterTableRename (com.alibaba.druid.sql.ast.statement.SQLAlterTableRename)1 SQLAlterTableStatement (com.alibaba.druid.sql.ast.statement.SQLAlterTableStatement)1 SQLConstraint (com.alibaba.druid.sql.ast.statement.SQLConstraint)1 SQLCreateDatabaseStatement (com.alibaba.druid.sql.ast.statement.SQLCreateDatabaseStatement)1 SQLCreateIndexStatement (com.alibaba.druid.sql.ast.statement.SQLCreateIndexStatement)1 SQLCreateTableStatement (com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement)1 SQLDeleteStatement (com.alibaba.druid.sql.ast.statement.SQLDeleteStatement)1 SQLDropDatabaseStatement (com.alibaba.druid.sql.ast.statement.SQLDropDatabaseStatement)1 SQLDropIndexStatement (com.alibaba.druid.sql.ast.statement.SQLDropIndexStatement)1 SQLDropTableStatement (com.alibaba.druid.sql.ast.statement.SQLDropTableStatement)1 SQLExprTableSource (com.alibaba.druid.sql.ast.statement.SQLExprTableSource)1 SQLInsertStatement (com.alibaba.druid.sql.ast.statement.SQLInsertStatement)1 SQLTableSource (com.alibaba.druid.sql.ast.statement.SQLTableSource)1