use of com.alibaba.druid.sql.ast.SQLExpr in project druid by alibaba.
the class MySqlExprParser method parseInterval.
protected SQLExpr parseInterval() {
accept(Token.INTERVAL);
if (lexer.token() == Token.LPAREN) {
lexer.nextToken();
SQLMethodInvokeExpr methodInvokeExpr = new SQLMethodInvokeExpr("INTERVAL");
if (lexer.token() != Token.RPAREN) {
exprList(methodInvokeExpr.getParameters(), methodInvokeExpr);
}
accept(Token.RPAREN);
if (//
methodInvokeExpr.getParameters().size() == 1 && lexer.token() == Token.IDENTIFIER) {
SQLExpr value = methodInvokeExpr.getParameters().get(0);
String unit = lexer.stringVal();
lexer.nextToken();
MySqlIntervalExpr intervalExpr = new MySqlIntervalExpr();
intervalExpr.setValue(value);
intervalExpr.setUnit(MySqlIntervalUnit.valueOf(unit.toUpperCase()));
return intervalExpr;
} else {
return primaryRest(methodInvokeExpr);
}
} else {
SQLExpr value = expr();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("Syntax error");
}
String unit = lexer.stringVal();
lexer.nextToken();
MySqlIntervalExpr intervalExpr = new MySqlIntervalExpr();
intervalExpr.setValue(value);
intervalExpr.setUnit(MySqlIntervalUnit.valueOf(unit.toUpperCase()));
return intervalExpr;
}
}
use of com.alibaba.druid.sql.ast.SQLExpr in project druid by alibaba.
the class MySqlExprParser method parsePartition.
public SQLPartition parsePartition() {
accept(Token.PARTITION);
SQLPartition partitionDef = new SQLPartition();
partitionDef.setName(this.name());
SQLPartitionValue values = this.parsePartitionValues();
if (values != null) {
partitionDef.setValues(values);
}
for (; ; ) {
boolean storage = false;
if (identifierEquals("DATA")) {
lexer.nextToken();
acceptIdentifier("DIRECTORY");
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
partitionDef.setDataDirectory(this.expr());
} else if (lexer.token() == Token.TABLESPACE) {
lexer.nextToken();
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
SQLName tableSpace = this.name();
partitionDef.setTableSpace(tableSpace);
} else if (lexer.token() == Token.INDEX) {
lexer.nextToken();
acceptIdentifier("DIRECTORY");
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
partitionDef.setIndexDirectory(this.expr());
} else if (identifierEquals("MAX_ROWS")) {
lexer.nextToken();
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
SQLExpr maxRows = this.primary();
partitionDef.setMaxRows(maxRows);
} else if (identifierEquals("MIN_ROWS")) {
lexer.nextToken();
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
SQLExpr minRows = this.primary();
partitionDef.setMaxRows(minRows);
} else if (//
identifierEquals("ENGINE") || (storage = (lexer.token() == Token.STORAGE || identifierEquals("STORAGE")))) {
if (storage) {
lexer.nextToken();
}
acceptIdentifier("ENGINE");
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
SQLName engine = this.name();
partitionDef.setEngine(engine);
} else if (lexer.token() == Token.COMMENT) {
lexer.nextToken();
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
SQLExpr comment = this.primary();
partitionDef.setComment(comment);
} else {
break;
}
}
if (lexer.token() == Token.LPAREN) {
lexer.nextToken();
for (; ; ) {
acceptIdentifier("SUBPARTITION");
SQLName subPartitionName = this.name();
SQLSubPartition subPartition = new SQLSubPartition();
subPartition.setName(subPartitionName);
partitionDef.addSubPartition(subPartition);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
}
return partitionDef;
}
use of com.alibaba.druid.sql.ast.SQLExpr in project druid by alibaba.
the class MySqlExprParser method primaryRest.
public final SQLExpr primaryRest(SQLExpr expr) {
if (expr == null) {
throw new IllegalArgumentException("expr");
}
if (lexer.token() == Token.LITERAL_CHARS) {
if (expr instanceof SQLIdentifierExpr) {
SQLIdentifierExpr identExpr = (SQLIdentifierExpr) expr;
String ident = identExpr.getName();
if (ident.equalsIgnoreCase("x")) {
String charValue = lexer.stringVal();
lexer.nextToken();
expr = new SQLHexExpr(charValue);
return primaryRest(expr);
} else if (ident.equalsIgnoreCase("b")) {
String charValue = lexer.stringVal();
lexer.nextToken();
expr = new SQLBinaryExpr(charValue);
return primaryRest(expr);
} else if (ident.startsWith("_")) {
String charValue = lexer.stringVal();
lexer.nextToken();
MySqlCharExpr mysqlCharExpr = new MySqlCharExpr(charValue);
mysqlCharExpr.setCharset(identExpr.getName());
if (identifierEquals("COLLATE")) {
lexer.nextToken();
String collate = lexer.stringVal();
mysqlCharExpr.setCollate(collate);
accept(Token.IDENTIFIER);
}
expr = mysqlCharExpr;
return primaryRest(expr);
}
} else if (expr instanceof SQLCharExpr) {
SQLMethodInvokeExpr concat = new SQLMethodInvokeExpr("CONCAT");
concat.addParameter(expr);
do {
String chars = lexer.stringVal();
concat.addParameter(new SQLCharExpr(chars));
lexer.nextToken();
} while (lexer.token() == Token.LITERAL_CHARS || lexer.token() == Token.LITERAL_ALIAS);
expr = concat;
}
} else if (lexer.token() == Token.IDENTIFIER) {
if (expr instanceof SQLHexExpr) {
if ("USING".equalsIgnoreCase(lexer.stringVal())) {
lexer.nextToken();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("syntax error, illegal hex");
}
String charSet = lexer.stringVal();
lexer.nextToken();
expr.getAttributes().put("USING", charSet);
return primaryRest(expr);
}
} else if ("COLLATE".equalsIgnoreCase(lexer.stringVal())) {
lexer.nextToken();
if (lexer.token() == Token.EQ) {
lexer.nextToken();
}
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("syntax error");
}
String collate = lexer.stringVal();
lexer.nextToken();
SQLBinaryOpExpr binaryExpr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.COLLATE, new SQLIdentifierExpr(collate), JdbcConstants.MYSQL);
expr = binaryExpr;
return primaryRest(expr);
} else if (expr instanceof SQLVariantRefExpr) {
if ("COLLATE".equalsIgnoreCase(lexer.stringVal())) {
lexer.nextToken();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("syntax error");
}
String collate = lexer.stringVal();
lexer.nextToken();
expr.putAttribute("COLLATE", collate);
return primaryRest(expr);
}
} else if (expr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr) expr;
String binaryString = lexer.stringVal();
if (intExpr.getNumber().intValue() == 0 && binaryString.startsWith("b")) {
lexer.nextToken();
expr = new SQLBinaryExpr(binaryString.substring(1));
return primaryRest(expr);
}
}
}
if (lexer.token() == Token.LPAREN && expr instanceof SQLIdentifierExpr) {
SQLIdentifierExpr identExpr = (SQLIdentifierExpr) expr;
String ident = identExpr.getName();
if ("EXTRACT".equalsIgnoreCase(ident)) {
lexer.nextToken();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("syntax error");
}
String unitVal = lexer.stringVal();
MySqlIntervalUnit unit = MySqlIntervalUnit.valueOf(unitVal.toUpperCase());
lexer.nextToken();
accept(Token.FROM);
SQLExpr value = expr();
MySqlExtractExpr extract = new MySqlExtractExpr();
extract.setValue(value);
extract.setUnit(unit);
accept(Token.RPAREN);
expr = extract;
return primaryRest(expr);
} else if ("SUBSTRING".equalsIgnoreCase(ident)) {
lexer.nextToken();
SQLMethodInvokeExpr methodInvokeExpr = new SQLMethodInvokeExpr(ident);
for (; ; ) {
SQLExpr param = expr();
methodInvokeExpr.addParameter(param);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
} else if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLExpr from = expr();
methodInvokeExpr.addParameter(from);
if (lexer.token() == Token.FOR) {
lexer.nextToken();
SQLExpr forExpr = expr();
methodInvokeExpr.addParameter(forExpr);
}
break;
} else if (lexer.token() == Token.RPAREN) {
break;
} else {
throw new ParserException("syntax error");
}
}
accept(Token.RPAREN);
expr = methodInvokeExpr;
return primaryRest(expr);
} else if ("TRIM".equalsIgnoreCase(ident)) {
lexer.nextToken();
SQLMethodInvokeExpr methodInvokeExpr = new SQLMethodInvokeExpr(ident);
if (lexer.token() == Token.IDENTIFIER) {
String flagVal = lexer.stringVal();
if ("LEADING".equalsIgnoreCase(flagVal)) {
lexer.nextToken();
methodInvokeExpr.getAttributes().put("TRIM_TYPE", "LEADING");
} else if ("BOTH".equalsIgnoreCase(flagVal)) {
lexer.nextToken();
methodInvokeExpr.getAttributes().put("TRIM_TYPE", "BOTH");
} else if ("TRAILING".equalsIgnoreCase(flagVal)) {
lexer.nextToken();
methodInvokeExpr.putAttribute("TRIM_TYPE", "TRAILING");
}
}
SQLExpr param = expr();
methodInvokeExpr.addParameter(param);
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLExpr from = expr();
methodInvokeExpr.putAttribute("FROM", from);
}
accept(Token.RPAREN);
expr = methodInvokeExpr;
return primaryRest(expr);
} else if ("MATCH".equalsIgnoreCase(ident)) {
lexer.nextToken();
MySqlMatchAgainstExpr matchAgainstExpr = new MySqlMatchAgainstExpr();
if (lexer.token() == Token.RPAREN) {
lexer.nextToken();
} else {
exprList(matchAgainstExpr.getColumns(), matchAgainstExpr);
accept(Token.RPAREN);
}
acceptIdentifier("AGAINST");
accept(Token.LPAREN);
SQLExpr against = primary();
matchAgainstExpr.setAgainst(against);
if (lexer.token() == Token.IN) {
lexer.nextToken();
if (identifierEquals("NATURAL")) {
lexer.nextToken();
acceptIdentifier("LANGUAGE");
acceptIdentifier("MODE");
if (lexer.token() == Token.WITH) {
lexer.nextToken();
acceptIdentifier("QUERY");
acceptIdentifier("EXPANSION");
matchAgainstExpr.setSearchModifier(SearchModifier.IN_NATURAL_LANGUAGE_MODE_WITH_QUERY_EXPANSION);
} else {
matchAgainstExpr.setSearchModifier(SearchModifier.IN_NATURAL_LANGUAGE_MODE);
}
} else if (identifierEquals("BOOLEAN")) {
lexer.nextToken();
acceptIdentifier("MODE");
matchAgainstExpr.setSearchModifier(SearchModifier.IN_BOOLEAN_MODE);
} else {
throw new ParserException("TODO");
}
} else if (lexer.token() == Token.WITH) {
throw new ParserException("TODO");
}
accept(Token.RPAREN);
expr = matchAgainstExpr;
return primaryRest(expr);
} else if (("CONVERT".equalsIgnoreCase(ident)) || ("CHAR".equalsIgnoreCase(ident))) {
lexer.nextToken();
SQLMethodInvokeExpr methodInvokeExpr = new SQLMethodInvokeExpr(ident);
if (lexer.token() != Token.RPAREN) {
exprList(methodInvokeExpr.getParameters(), methodInvokeExpr);
}
if (identifierEquals("USING")) {
lexer.nextToken();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("syntax error");
}
String charset = lexer.stringVal();
lexer.nextToken();
methodInvokeExpr.putAttribute("USING", charset);
}
accept(Token.RPAREN);
expr = methodInvokeExpr;
return primaryRest(expr);
} else if ("POSITION".equalsIgnoreCase(ident)) {
accept(Token.LPAREN);
SQLExpr subStr = this.primary();
accept(Token.IN);
SQLExpr str = this.expr();
accept(Token.RPAREN);
SQLMethodInvokeExpr locate = new SQLMethodInvokeExpr("LOCATE");
locate.addParameter(subStr);
locate.addParameter(str);
expr = locate;
return primaryRest(expr);
}
}
if (lexer.token() == Token.VARIANT && "@".equals(lexer.stringVal())) {
lexer.nextToken();
MySqlUserName userName = new MySqlUserName();
if (expr instanceof SQLCharExpr) {
userName.setUserName(((SQLCharExpr) expr).toString());
} else {
userName.setUserName(((SQLIdentifierExpr) expr).getName());
}
if (lexer.token() == Token.LITERAL_CHARS) {
userName.setHost("'" + lexer.stringVal() + "'");
} else {
userName.setHost(lexer.stringVal());
}
lexer.nextToken();
return userName;
}
if (lexer.token() == Token.ERROR) {
throw new ParserException("syntax error, token: " + lexer.token() + " " + lexer.stringVal() + ", pos : " + lexer.pos());
}
return super.primaryRest(expr);
}
use of com.alibaba.druid.sql.ast.SQLExpr in project druid by alibaba.
the class MySqlStatementParser method parseShowColumns.
private MySqlShowColumnsStatement parseShowColumns() {
MySqlShowColumnsStatement stmt = new MySqlShowColumnsStatement();
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLName table = exprParser.name();
stmt.setTable(table);
if (lexer.token() == Token.FROM || lexer.token() == Token.IN) {
lexer.nextToken();
SQLName database = exprParser.name();
stmt.setDatabase(database);
}
}
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLExpr like = exprParser.expr();
stmt.setLike(like);
}
if (lexer.token() == Token.WHERE) {
lexer.nextToken();
SQLExpr where = exprParser.expr();
stmt.setWhere(where);
}
return stmt;
}
use of com.alibaba.druid.sql.ast.SQLExpr in project druid by alibaba.
the class MySqlStatementParser method parseValueClause.
private void parseValueClause(List<ValuesClause> valueClauseList, int columnSize) {
for (int i = 0; ; ++i) {
if (lexer.token() != Token.LPAREN) {
throw new ParserException("syntax error, expect ')'");
}
lexer.nextTokenValue();
if (lexer.token() != Token.RPAREN) {
List<SQLExpr> valueExprList;
if (columnSize > 0) {
valueExprList = new ArrayList<SQLExpr>(columnSize);
} else {
valueExprList = new ArrayList<SQLExpr>();
}
for (; ; ) {
SQLExpr expr;
if (lexer.token() == Token.LITERAL_INT) {
expr = new SQLIntegerExpr(lexer.integerValue());
lexer.nextTokenComma();
} else if (lexer.token() == Token.LITERAL_CHARS) {
expr = new SQLCharExpr(lexer.stringVal());
lexer.nextTokenComma();
} else if (lexer.token() == Token.LITERAL_NCHARS) {
expr = new SQLNCharExpr(lexer.stringVal());
lexer.nextTokenComma();
} else {
expr = exprParser.expr();
}
if (lexer.token() == Token.COMMA) {
valueExprList.add(expr);
lexer.nextTokenValue();
continue;
} else if (lexer.token() == Token.RPAREN) {
valueExprList.add(expr);
break;
} else {
expr = this.exprParser.primaryRest(expr);
if (lexer.token() != Token.COMMA && lexer.token() != Token.RPAREN) {
expr = this.exprParser.exprRest(expr);
}
valueExprList.add(expr);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
} else {
break;
}
}
}
SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause(valueExprList);
valueClauseList.add(values);
} else {
SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause(new ArrayList<SQLExpr>(0));
valueClauseList.add(values);
}
if (lexer.token() != Token.RPAREN) {
throw new ParserException("syntax error");
}
if (!parseCompleteValues && valueClauseList.size() >= parseValuesSize) {
lexer.skipToEOF();
break;
}
lexer.nextTokenComma();
if (lexer.token() == Token.COMMA) {
lexer.nextTokenLParen();
continue;
} else {
break;
}
}
}
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