Examples with OracleDbLinkExpr com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr used on opensource projects

Example 1 with OracleDbLinkExpr

use of com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr in project druid by alibaba.

the class OracleExprParser method name.

public SQLName name() {
    SQLName name = super.name();
    if (lexer.token() == Token.MONKEYS_AT) {
        lexer.nextToken();
        if (lexer.token() != Token.IDENTIFIER) {
            throw new ParserException("syntax error, expect identifier, but " + lexer.token());
        }
        OracleDbLinkExpr dbLink = new OracleDbLinkExpr();
        dbLink.setExpr(name);
        dbLink.setDbLink(lexer.stringVal());
        lexer.nextToken();
        return dbLink;
    }
    return name;
}

Example 2 with OracleDbLinkExpr

use of com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr in project druid by alibaba.

the class OracleExprParser method primaryRest.

public SQLExpr primaryRest(SQLExpr expr) {
    if (expr.getClass() == SQLIdentifierExpr.class) {
        String ident = ((SQLIdentifierExpr) expr).getName();
        if ("TIMESTAMP".equalsIgnoreCase(ident)) {
            if (lexer.token() != Token.LITERAL_ALIAS && lexer.token() != Token.LITERAL_CHARS) {
                return new SQLIdentifierExpr("TIMESTAMP");
            }
            SQLTimestampExpr timestamp = new SQLTimestampExpr();
            String literal = lexer.stringVal();
            timestamp.setLiteral(literal);
            accept(Token.LITERAL_CHARS);
            if (identifierEquals("AT")) {
                lexer.nextToken();
                acceptIdentifier("TIME");
                acceptIdentifier("ZONE");
                String timezone = lexer.stringVal();
                timestamp.setTimeZone(timezone);
                accept(Token.LITERAL_CHARS);
            }
            return primaryRest(timestamp);
        }
    }
    if (lexer.token() == Token.IDENTIFIER && expr instanceof SQLNumericLiteralExpr) {
        String ident = lexer.stringVal();
        if (ident.length() == 1) {
            char unit = ident.charAt(0);
            switch(unit) {
                case 'K':
                case 'M':
                case 'G':
                case 'T':
                case 'P':
                case 'E':
                case 'k':
                case 'm':
                case 'g':
                case 't':
                case 'p':
                case 'e':
                    expr = new OracleSizeExpr(expr, OracleSizeExpr.Unit.valueOf(ident.toUpperCase()));
                    lexer.nextToken();
                    break;
                default:
                    break;
            }
        }
    }
    if (lexer.token() == Token.DOTDOT) {
        lexer.nextToken();
        SQLExpr upBound = expr();
        return new OracleRangeExpr(expr, upBound);
    }
    if (lexer.token() == Token.MONKEYS_AT) {
        lexer.nextToken();
        OracleDbLinkExpr dblink = new OracleDbLinkExpr();
        dblink.setExpr(expr);
        if (lexer.token() == Token.BANG) {
            dblink.setDbLink("!");
            lexer.nextToken();
        } else {
            String link = lexer.stringVal();
            accept(Token.IDENTIFIER);
            dblink.setDbLink(link);
        }
        expr = dblink;
    }
    if (identifierEquals("DAY") || identifierEquals("YEAR")) {
        lexer.mark();
        String name = lexer.stringVal();
        lexer.nextToken();
        if (lexer.token() == Token.COMMA) {
            lexer.reset();
            return expr;
        }
        OracleIntervalExpr interval = new OracleIntervalExpr();
        interval.setValue(expr);
        OracleIntervalType type = OracleIntervalType.valueOf(name);
        interval.setType(type);
        if (lexer.token() == Token.LPAREN) {
            lexer.nextToken();
            if (lexer.token() != Token.LITERAL_INT) {
                throw new ParserException("syntax error");
            }
            interval.setPrecision(lexer.integerValue().intValue());
            lexer.nextToken();
            accept(Token.RPAREN);
        }
        accept(Token.TO);
        if (identifierEquals("SECOND")) {
            lexer.nextToken();
            interval.setToType(OracleIntervalType.SECOND);
            if (lexer.token() == Token.LPAREN) {
                lexer.nextToken();
                if (lexer.token() != Token.LITERAL_INT) {
                    throw new ParserException("syntax error");
                }
                interval.setFactionalSecondsPrecision(lexer.integerValue().intValue());
                lexer.nextToken();
                accept(Token.RPAREN);
            }
        } else {
            interval.setToType(OracleIntervalType.MONTH);
            lexer.nextToken();
        }
        expr = interval;
    }
    if (identifierEquals("AT")) {
        char markChar = lexer.current();
        int markBp = lexer.bp();
        lexer.nextToken();
        if (identifierEquals("LOCAL")) {
            lexer.nextToken();
            expr = new OracleDatetimeExpr(expr, new SQLIdentifierExpr("LOCAL"));
        } else {
            if (identifierEquals("TIME")) {
                lexer.nextToken();
            } else {
                lexer.reset(markBp, markChar, Token.IDENTIFIER);
                return expr;
            }
            acceptIdentifier("ZONE");
            SQLExpr timeZone = primary();
            expr = new OracleDatetimeExpr(expr, timeZone);
        }
    }
    SQLExpr restExpr = super.primaryRest(expr);
    if (restExpr != expr && restExpr instanceof SQLMethodInvokeExpr) {
        SQLMethodInvokeExpr methodInvoke = (SQLMethodInvokeExpr) restExpr;
        if (methodInvoke.getParameters().size() == 1) {
            SQLExpr paramExpr = methodInvoke.getParameters().get(0);
            if (paramExpr instanceof SQLIdentifierExpr && "+".equals(((SQLIdentifierExpr) paramExpr).getName())) {
                OracleOuterExpr outerExpr = new OracleOuterExpr();
                if (methodInvoke.getOwner() == null) {
                    outerExpr.setExpr(new SQLIdentifierExpr(methodInvoke.getMethodName()));
                } else {
                    outerExpr.setExpr(new SQLPropertyExpr(methodInvoke.getOwner(), methodInvoke.getMethodName()));
                }
                return outerExpr;
            }
        }
    }
    return restExpr;
}

Example 3 with OracleDbLinkExpr

use of com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr in project druid by alibaba.

the class EqualTest_dbLink method test_eq.

public void test_eq() throws Exception {
    String sql = "a@b";
    String sql_c = "a@c";
    OracleDbLinkExpr exprA, exprB, exprC;
    {
        OracleExprParser parser = new OracleExprParser(sql);
        exprA = (OracleDbLinkExpr) parser.expr();
    }
    {
        OracleExprParser parser = new OracleExprParser(sql);
        exprB = (OracleDbLinkExpr) parser.expr();
    }
    {
        OracleExprParser parser = new OracleExprParser(sql_c);
        exprC = (OracleDbLinkExpr) parser.expr();
    }
    Assert.assertEquals(exprA, exprB);
    Assert.assertNotEquals(exprA, exprC);
    Assert.assertTrue(exprA.equals(exprA));
    Assert.assertFalse(exprA.equals(new Object()));
    Assert.assertEquals(exprA.hashCode(), exprB.hashCode());
    Assert.assertEquals(new OracleDbLinkExpr(), new OracleDbLinkExpr());
    Assert.assertEquals(new OracleDbLinkExpr().hashCode(), new OracleDbLinkExpr().hashCode());
}

Example 4 with OracleDbLinkExpr

use of com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr in project druid by alibaba.

the class OracleASTVisitorAdapterTest method test_adapter.

public void test_adapter() throws Exception {
    OracleASTVisitorAdapter adapter = new OracleASTVisitorAdapter();
    new OraclePLSQLCommitStatement().accept(adapter);
    new OracleAnalytic().accept(adapter);
    new OracleAnalyticWindowing().accept(adapter);
    new SQLDateExpr().accept(adapter);
    new OracleDbLinkExpr().accept(adapter);
    new OracleSelectForUpdate().accept(adapter);
    new OracleSelectHierachicalQueryClause().accept(adapter);
    new OracleSelectPivot.Item().accept(adapter);
    new OracleSelectPivot().accept(adapter);
    new CheckOption().accept(adapter);
    new ReadOnly().accept(adapter);
    new OracleSelectUnPivot().accept(adapter);
    new SQLTimestampExpr().accept(adapter);
    new PartitionExtensionClause().accept(adapter);
    new VersionsFlashbackQueryClause().accept(adapter);
    new VersionsFlashbackQueryClause().accept(adapter);
    new AsOfFlashbackQueryClause().accept(adapter);
    new SQLGroupingSetExpr().accept(adapter);
    new OracleWithSubqueryEntry().accept(adapter);
    new OracleFileSpecification().accept(adapter);
    new OracleAlterTablespaceAddDataFile().accept(adapter);
    new OracleAlterTablespaceStatement().accept(adapter);
    new SQLCreateSequenceStatement().accept(adapter);
    new SQLLoopStatement().accept(adapter);
    new OracleIntervalExpr().accept(adapter);
    new OracleDeleteStatement().accept(adapter);
    new OracleUpdateStatement().accept(adapter);
    new SampleClause().accept(adapter);
    new OracleSelectTableReference().accept(adapter);
    new SearchClause().accept(adapter);
    new CycleClause().accept(adapter);
    new OracleBinaryFloatExpr().accept(adapter);
    new OracleBinaryDoubleExpr().accept(adapter);
    new OracleCursorExpr().accept(adapter);
    new OracleIsSetExpr().accept(adapter);
    new ReturnRowsClause().accept(adapter);
    new ModelClause().accept(adapter);
    new MainModelClause().accept(adapter);
    new ModelColumnClause().accept(adapter);
    new QueryPartitionClause().accept(adapter);
    new ModelColumn().accept(adapter);
    new ModelRulesClause().accept(adapter);
    new CellAssignmentItem().accept(adapter);
    new CellAssignment().accept(adapter);
    new SQLMergeStatement().accept(adapter);
    new MergeUpdateClause().accept(adapter);
    new MergeInsertClause().accept(adapter);
    new SQLErrorLoggingClause().accept(adapter);
    new OracleReturningClause().accept(adapter);
    new OracleInsertStatement().accept(adapter);
    new InsertIntoClause().accept(adapter);
    new OracleMultiInsertStatement().accept(adapter);
    new ConditionalInsertClause().accept(adapter);
    new ConditionalInsertClauseItem().accept(adapter);
    new OracleSelectQueryBlock().accept(adapter);
    new SQLBlockStatement().accept(adapter);
    new OracleLockTableStatement().accept(adapter);
    new OracleAlterSessionStatement().accept(adapter);
    new OracleExprStatement().accept(adapter);
    new OracleDatetimeExpr().accept(adapter);
    new OracleExceptionStatement().accept(adapter);
    new OracleExceptionStatement.Item().accept(adapter);
    new OracleArgumentExpr().accept(adapter);
    new OracleSetTransactionStatement().accept(adapter);
    new SQLDropSequenceStatement().accept(adapter);
    new OracleDataTypeIntervalDay().accept(adapter);
    new OracleDataTypeIntervalYear().accept(adapter);
    new OracleDataTypeTimestamp().accept(adapter);
    new OracleDropDbLinkStatement().accept(adapter);
    new OracleCreateDatabaseDbLinkStatement().accept(adapter);
    new SQLCreateProcedureStatement().accept(adapter);
    new OracleSavePointStatement().accept(adapter);
    new SQLFetchStatement().accept(adapter);
    new OracleExitStatement().accept(adapter);
    new OracleExplainStatement().accept(adapter);
    new OracleAlterProcedureStatement().accept(adapter);
    new OracleAlterTableDropPartition().accept(adapter);
    new OracleAlterTableTruncatePartition().accept(adapter);
    new OracleAlterTableSplitPartition.TableSpaceItem().accept(adapter);
    new OracleAlterTableSplitPartition.UpdateIndexesClause().accept(adapter);
    new OracleAlterTableSplitPartition.NestedTablePartitionSpec().accept(adapter);
    new OracleAlterTableSplitPartition().accept(adapter);
    new OracleAlterTableModify().accept(adapter);
    new OracleCreateIndexStatement().accept(adapter);
    new OracleAlterIndexStatement().accept(adapter);
    new OracleForStatement().accept(adapter);
    new OracleAlterIndexStatement().accept(adapter);
    new OracleRangeExpr().accept(adapter);
    new OraclePrimaryKey().accept(adapter);
    new OracleCreateTableStatement().accept(adapter);
    new SQLAlterTableRename().accept(adapter);
    new OracleStorageClause().accept(adapter);
    new OracleGotoStatement().accept(adapter);
    new OracleLabelStatement().accept(adapter);
    new SQLParameter().accept(adapter);
    new OracleCommitStatement().accept(adapter);
    new OracleAlterTriggerStatement().accept(adapter);
    new OracleAlterSynonymStatement().accept(adapter);
    new AsOfSnapshotClause().accept(adapter);
    new OracleAlterViewStatement().accept(adapter);
    new OracleAlterTableMoveTablespace().accept(adapter);
    new OracleSizeExpr().accept(adapter);
}