com.alibaba.druid.sql.ast.expr.SQLCharExpr Java Examples
The following examples show how to use
com.alibaba.druid.sql.ast.expr.SQLCharExpr.
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Example #1
| Source File: JoinParser.java From Mycat2 with GNU General Public License v3.0 | 6 votes |
|
private Object getExpValue(SQLExpr expr){
if (expr instanceof SQLIntegerExpr){
return ((SQLIntegerExpr)expr).getNumber().longValue();
}
if (expr instanceof SQLNumberExpr){
return ((SQLNumberExpr)expr).getNumber().doubleValue();
}
if (expr instanceof SQLCharExpr){
String va=((SQLCharExpr)expr).toString();
return va;//remove(va,'\'');
}
if (expr instanceof SQLBooleanExpr){
return ((SQLBooleanExpr)expr).getValue();
}
if (expr instanceof SQLNullExpr){
return null;
}
return expr;
}
Example #2
| Source File: FieldMaker.java From elasticsearch-sql with Apache License 2.0 | 6 votes |
|
private static Field makeScriptMethodField(SQLBinaryOpExpr binaryExpr, String alias, String tableAlias) throws SqlParseException {
List<SQLExpr> params = new ArrayList<>();
String scriptFieldAlias;
if (alias == null || alias.equals(""))
scriptFieldAlias = binaryExpr.toString();
else
scriptFieldAlias = alias;
params.add(new SQLCharExpr(scriptFieldAlias));
Object left = getScriptValue(binaryExpr.getLeft());
Object right = getScriptValue(binaryExpr.getRight());
//added by xzb 修复 if 条件的 value 被去除单引号问题
/* String tmp = binaryExpr.getRight().toString().trim();
if (tmp.startsWith("'") && tmp.endsWith("'")) {
right = "'" + right + "'";
}*/
String script = String.format("%s %s %s", left, binaryExpr.getOperator().getName(), right);
params.add(new SQLCharExpr(script));
return makeMethodField("script", params, null, null, tableAlias, false);
}
Example #3
| Source File: DruidInsertParser.java From Mycat2 with GNU General Public License v3.0 | 6 votes |
|
private String getShardingValue(SQLExpr expr) throws SQLNonTransientException {
String shardingValue = null;
if(expr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr)expr;
shardingValue = intExpr.getNumber() + "";
} else if (expr instanceof SQLCharExpr) {
SQLCharExpr charExpr = (SQLCharExpr)expr;
shardingValue = charExpr.getText();
} else if (expr instanceof SQLMethodInvokeExpr) {
SQLMethodInvokeExpr methodInvokeExpr = (SQLMethodInvokeExpr)expr;
try {
shardingValue = tryInvokeSQLMethod(methodInvokeExpr);
}catch (Exception e){
LOGGER.error("",e);
}
if (shardingValue == null){
shardingValue = expr.toString();
}
} else {
shardingValue = expr.toString();
}
return shardingValue;
}
Example #4
| Source File: DruidCreateTableParser.java From Mycat2 with GNU General Public License v3.0 | 6 votes |
|
@Override
public void statementParse(SchemaConfig schema, RouteResultset rrs, SQLStatement stmt) throws SQLNonTransientException {
MySqlCreateTableStatement createStmt = (MySqlCreateTableStatement)stmt;
if(createStmt.getQuery() != null) {
String msg = "create table from other table not supported :" + stmt;
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
}
String tableName = StringUtil.removeBackquote(createStmt.getTableSource().toString().toUpperCase());
if(schema.getTables().containsKey(tableName)) {
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)stmt).getTableElementList().add(column);
String sql = createStmt.toString();
rrs.setStatement(sql);
ctx.setSql(sql);
}
}
ctx.addTable(tableName);
}
Example #5
| Source File: RouterUtil.java From Mycat2 with GNU General Public License v3.0 | 6 votes |
|
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 #6
| Source File: ItemFuncGroupConcat.java From dble with GNU General Public License v2.0 | 6 votes |
|
@Override
public SQLExpr toExpression() {
SQLAggregateExpr aggregate = new SQLAggregateExpr(funcName());
if (hasWithDistinct()) {
aggregate.setOption(SQLAggregateOption.DISTINCT);
}
if (orders != null) {
SQLOrderBy orderBy = new SQLOrderBy();
for (Order order : orders) {
SQLSelectOrderByItem orderItem = new SQLSelectOrderByItem(order.getItem().toExpression());
orderItem.setType(order.getSortOrder());
orderBy.addItem(orderItem);
}
aggregate.putAttribute(ItemFuncKeyWord.ORDER_BY, orderBy);
}
for (Item arg : args) {
aggregate.addArgument(arg.toExpression());
}
if (seperator != null) {
SQLCharExpr sep = new SQLCharExpr(seperator);
aggregate.putAttribute(ItemFuncKeyWord.SEPARATOR, sep);
}
return aggregate;
}
Example #7
| Source File: WhereParser.java From elasticsearch-sql with Apache License 2.0 | 6 votes |
|
private boolean explanSpecialCondWithBothSidesAreLiterals(SQLBinaryOpExpr bExpr, Where where) throws SqlParseException {
if ((bExpr.getLeft() instanceof SQLNumericLiteralExpr || bExpr.getLeft() instanceof SQLCharExpr) &&
(bExpr.getRight() instanceof SQLNumericLiteralExpr || bExpr.getRight() instanceof SQLCharExpr)
) {
SQLMethodInvokeExpr sqlMethodInvokeExpr = new SQLMethodInvokeExpr("script", null);
String operator = bExpr.getOperator().getName();
if (operator.equals("=")) {
operator = "==";
}
sqlMethodInvokeExpr.addParameter(
new SQLCharExpr(Util.expr2Object(bExpr.getLeft(), "'") +
" " + operator + " " +
Util.expr2Object(bExpr.getRight(), "'"))
);
explanCond("AND", sqlMethodInvokeExpr, where);
return true;
}
return false;
}
Example #8
| Source File: Util.java From elasticsearch-sql with Apache License 2.0 | 6 votes |
|
public static Object getScriptValueWithQuote(SQLExpr expr, String quote) throws SqlParseException {
if (expr instanceof SQLIdentifierExpr || expr instanceof SQLPropertyExpr || expr instanceof SQLVariantRefExpr) {
return "doc['" + expr.toString() + "'].value";
} else if (expr instanceof SQLCharExpr) {
return quote + ((SQLCharExpr) expr).getValue() + quote;
} else if (expr instanceof SQLIntegerExpr) {
return ((SQLIntegerExpr) expr).getValue();
} else if (expr instanceof SQLNumericLiteralExpr) {
return ((SQLNumericLiteralExpr) expr).getNumber();
} else if (expr instanceof SQLNullExpr) {
return ((SQLNullExpr) expr).toString().toLowerCase();
} else if (expr instanceof SQLBinaryOpExpr) {
//zhongshu-comment 该分支由忠树添加
String left = "doc['" + ((SQLBinaryOpExpr) expr).getLeft().toString() + "'].value";
String operator = ((SQLBinaryOpExpr) expr).getOperator().getName();
String right = "doc['" + ((SQLBinaryOpExpr) expr).getRight().toString() + "'].value";
return left + operator + right;
}
throw new SqlParseException("could not parse sqlBinaryOpExpr need to be identifier/valuable got " + expr.getClass().toString() + " with value:" + expr.toString());
}
Example #9
| Source File: Util.java From elasticsearch-sql with Apache License 2.0 | 6 votes |
|
public static Object expr2Object(SQLExpr expr, String charWithQuote) {
Object value = null;
if (expr instanceof SQLNumericLiteralExpr) {
value = ((SQLNumericLiteralExpr) expr).getNumber();
} else if (expr instanceof SQLCharExpr) {
value = charWithQuote + ((SQLCharExpr) expr).getText() + charWithQuote;
} else if (expr instanceof SQLIdentifierExpr) {
value = expr.toString();
} else if (expr instanceof SQLPropertyExpr) {
value = expr.toString();
} else if (expr instanceof SQLVariantRefExpr) {
value = expr.toString();
} else if (expr instanceof SQLAllColumnExpr) {
value = "*";
} else if (expr instanceof SQLValuableExpr) {
value = ((SQLValuableExpr) expr).getValue();
} else if (expr instanceof SQLBooleanExpr) {
value = ((SQLBooleanExpr) expr).getValue();
} else {
//throw new SqlParseException("can not support this type " + expr.getClass());
}
return value;
}
Example #10
| Source File: GlobalTableUtil.java From Mycat2 with GNU General Public License v3.0 | 5 votes |
|
static String addColumnIfCreate(String sql, SQLStatement statement) {
if (isCreate(statement) && sql.trim().toUpperCase().startsWith("CREATE TABLE ") && !hasGlobalColumn(statement)) {
SQLColumnDefinition column = new SQLColumnDefinition();
column.setDataType(new SQLCharacterDataType("bigint"));
column.setName(new SQLIdentifierExpr(GLOBAL_TABLE_MYCAT_COLUMN));
column.setComment(new SQLCharExpr("全局表保存修改时间戳的字段名"));
((SQLCreateTableStatement)statement).getTableElementList().add(column);
}
return statement.toString();
}
Example #11
| Source File: FieldMaker.java From elasticsearch-sql with Apache License 2.0 | 5 votes |
|
private static Field handleIdentifier(SQLExpr expr, String alias, String tableAlias) throws SqlParseException {
String name = expr.toString().replace("`", "");
String newFieldName = name;
Field field = null;
if (tableAlias != null) {
String aliasPrefix = tableAlias + ".";
if (name.startsWith(aliasPrefix)) {
newFieldName = name.replaceFirst(aliasPrefix, "");
field = new Field(newFieldName, alias);
}
}
if (tableAlias == null) {
field = new Field(newFieldName, alias);
}
//zhongshu-comment 字段的别名不为空 && 别名和字段名不一样
if (alias != null && !alias.equals(name) && !Util.isFromJoinOrUnionTable(expr)) {
/*
zhongshu-comment newFieldName是字段原来的名字，这句话应该是用于es dsl的
使用别名有很多种情况：
1、最简单的就是select field_1 as a from tbl
2、调用函数处理字段之后，select floor(field_1) as a from tbl
3、执行表达式，select field_1 + field_2 as a from tbl
4、case when field_1='a' then 'haha' else 'hehe' end as a
5、........
所以这个if分支就是为了处理以上这些情况的
*/
List<SQLExpr> paramers = Lists.newArrayList();
paramers.add(new SQLCharExpr(alias)); //zhongshu-comment 别名
paramers.add(new SQLCharExpr("doc['" + newFieldName + "'].value"));
field = makeMethodField("script", paramers, null, alias, tableAlias, true);
}
return field;
}
Example #12
| Source File: FieldMaker.java From elasticsearch-sql with Apache License 2.0 | 5 votes |
|
public static SQLMethodInvokeExpr makeBinaryMethodField(SQLBinaryOpExpr expr, String alias, boolean first) throws SqlParseException {
List<SQLExpr> params = new ArrayList<>();
String scriptFieldAlias;
if (first && (alias == null || alias.equals(""))) {
scriptFieldAlias = "field_" + SQLFunctions.random();
} else {
scriptFieldAlias = alias;
}
params.add(new SQLCharExpr(scriptFieldAlias));
switch (expr.getOperator()) {
case Add:
return convertBinaryOperatorToMethod("add", expr);
case Multiply:
return convertBinaryOperatorToMethod("multiply", expr);
case Divide:
return convertBinaryOperatorToMethod("divide", expr);
case Modulus:
return convertBinaryOperatorToMethod("modulus", expr);
case Subtract:
return convertBinaryOperatorToMethod("subtract", expr);
default:
throw new SqlParseException(expr.getOperator().getName() + " is not support");
}
}
Example #13
| Source File: SqlParser.java From elasticsearch-sql with Apache License 2.0 | 5 votes |
|
private ScriptSortBuilder.ScriptSortType judgeIsStringSort(SQLExpr expr) {
if (expr instanceof SQLCaseExpr) {
List<SQLCaseExpr.Item> itemList = ((SQLCaseExpr) expr).getItems();
for (SQLCaseExpr.Item item : itemList) {
if (item.getValueExpr() instanceof SQLCharExpr) {
return ScriptSortBuilder.ScriptSortType.STRING;
}
}
}
return ScriptSortBuilder.ScriptSortType.NUMBER;
}
Example #14
| Source File: WhereParser.java From elasticsearch-sql with Apache License 2.0 | 5 votes |
|
private Object parseValue(SQLExpr expr) throws SqlParseException {
if (expr instanceof SQLNumericLiteralExpr) {
Number number = ((SQLNumericLiteralExpr) expr).getNumber();
if(number instanceof BigDecimal){
return number.doubleValue();
}
if(number instanceof BigInteger){
return number.longValue();
}
return ((SQLNumericLiteralExpr) expr).getNumber();
} else if (expr instanceof SQLCharExpr) {
return ((SQLCharExpr) expr).getText();
} else if (expr instanceof SQLMethodInvokeExpr) {
return expr;
} else if (expr instanceof SQLNullExpr) {
return null;
} else if (expr instanceof SQLIdentifierExpr) {
return expr;
} else if (expr instanceof SQLPropertyExpr) {
return expr;
} else {
/*
zhongshu-comment 解析where子查询时会抛出这样的异常：
Failed to parse SqlExpression of type class com.alibaba.druid.sql.ast.expr.SQLQueryExpr. expression value: com.alibaba.druid.sql.ast.statement.SQLSelect@1d60737e
*/
throw new SqlParseException(
String.format("Failed to parse SqlExpression of type %s. expression value: %s", expr.getClass(), expr)
);
}
}
Example #15
| Source File: WhereParser.java From elasticsearch-sql with Apache License 2.0 | 5 votes |
|
private boolean explanSpecialCondWithBothSidesAreProperty(SQLBinaryOpExpr bExpr, Where where) throws SqlParseException {
//join is not support
if ((bExpr.getLeft() instanceof SQLPropertyExpr || bExpr.getLeft() instanceof SQLIdentifierExpr) &&
(bExpr.getRight() instanceof SQLPropertyExpr || bExpr.getRight() instanceof SQLIdentifierExpr) &&
Sets.newHashSet("=", "<", ">", ">=", "<=","<>","!=").contains(bExpr.getOperator().getName()) &&
!Util.isFromJoinOrUnionTable(bExpr)
) {
SQLMethodInvokeExpr sqlMethodInvokeExpr = new SQLMethodInvokeExpr("script", null);
String operator = bExpr.getOperator().getName();
if (operator.equals("=")) {
operator = "==";
}else
if (operator.equals("<>")) {
operator = "!=";
}
String leftProperty = Util.expr2Object(bExpr.getLeft()).toString();
String rightProperty = Util.expr2Object(bExpr.getRight()).toString();
if (leftProperty.split("\\.").length > 1) {
leftProperty = leftProperty.substring(leftProperty.split("\\.")[0].length() + 1);
}
if (rightProperty.split("\\.").length > 1) {
rightProperty = rightProperty.substring(rightProperty.split("\\.")[0].length() + 1);
}
sqlMethodInvokeExpr.addParameter(new SQLCharExpr(
"doc['" + leftProperty + "'].value " +
operator +
" doc['" + rightProperty + "'].value"));
explanCond("AND", sqlMethodInvokeExpr, where);
return true;
}
return false;
}
Example #16
| Source File: DruidInsertReplaceParser.java From dble with GNU General Public License v2.0 | 5 votes |
|
static String shardingValueToSting(SQLExpr valueExpr) throws SQLNonTransientException {
String shardingValue = null;
if (valueExpr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr) valueExpr;
shardingValue = intExpr.getNumber() + "";
} else if (valueExpr instanceof SQLCharExpr) {
SQLCharExpr charExpr = (SQLCharExpr) valueExpr;
shardingValue = charExpr.getText();
}
if (shardingValue == null && !(valueExpr instanceof SQLNullExpr)) {
throw new SQLNonTransientException("Not Supported of Sharding Value EXPR :" + valueExpr.toString());
}
return shardingValue;
}
Example #17
| Source File: ShardingValuesHandler.java From dble with GNU General Public License v2.0 | 5 votes |
|
private Integer handleShardingColumn(DumpFileContext context, List<SQLExpr> values) throws SQLNonTransientException {
AbstractPartitionAlgorithm algorithm = context.getTableConfig().getRule().getRuleAlgorithm();
SQLExpr expr = values.get(context.getPartitionColumnIndex());
String shardingValue = null;
if (expr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr) expr;
shardingValue = intExpr.getNumber() + "";
} else if (expr instanceof SQLCharExpr) {
SQLCharExpr charExpr = (SQLCharExpr) expr;
shardingValue = charExpr.getText();
}
if (shardingValue == null && !(expr instanceof SQLNullExpr)) {
throw new SQLNonTransientException("Not Supported of Sharding Value EXPR :" + values.toString());
}
Integer nodeIndex;
try {
nodeIndex = algorithm.calculate(shardingValue);
// null means can't find any valid index
if (nodeIndex == null || nodeIndex >= context.getTableConfig().getDataNodes().size()) {
throw new SQLNonTransientException("can't find any valid datanode shardingValue" + values.toString());
}
} catch (Exception e) {
throw new SQLNonTransientException("can't calculate valid datanode shardingValue" + values.toString() + ",due to " + e.getMessage());
}
return nodeIndex;
}
Example #18
| Source File: ServerLoadDataInfileHandler.java From Mycat2 with GNU General Public License v3.0 | 5 votes |
|
private RouteResultset buildResultSet(Map<String, LoadData> routeMap)
{
statement.setLocal(true);//强制local
SQLLiteralExpr fn = new SQLCharExpr(fileName); //默认druid会过滤掉路径的分隔符，所以这里重新设置下
statement.setFileName(fn);
String srcStatement = statement.toString();
RouteResultset rrs = new RouteResultset(srcStatement, ServerParse.LOAD_DATA_INFILE_SQL);
rrs.setLoadData(true);
rrs.setStatement(srcStatement);
rrs.setAutocommit(serverConnection.isAutocommit());
rrs.setFinishedRoute(true);
int size = routeMap.size();
RouteResultsetNode[] routeResultsetNodes = new RouteResultsetNode[size];
int index = 0;
for (String dn : routeMap.keySet())
{
RouteResultsetNode rrNode = new RouteResultsetNode(dn, ServerParse.LOAD_DATA_INFILE_SQL, srcStatement);
rrNode.setSource(rrs);
rrNode.setTotalNodeSize(size);
rrNode.setStatement(srcStatement);
LoadData newLoadData = new LoadData();
ObjectUtil.copyProperties(loadData, newLoadData);
newLoadData.setLocal(true);
LoadData loadData1 = routeMap.get(dn);
// if (isHasStoreToFile)
if (loadData1.getFileName()!=null)//此处判断是否有保存分库load的临时文件dn1.txt/dn2.txt，不是判断是否有clientTemp.txt
{
newLoadData.setFileName(loadData1.getFileName());
} else
{
newLoadData.setData(loadData1.getData());
}
rrNode.setLoadData(newLoadData);
routeResultsetNodes[index] = rrNode;
index++;
}
rrs.setNodes(routeResultsetNodes);
return rrs;
}
Example #19
| Source File: ItemString.java From dble with GNU General Public License v2.0 | 4 votes |
|
@Override
public SQLExpr toExpression() {
return new SQLCharExpr(value); //LiteralString(null, value, false);
}
Example #20
| Source File: WhereParser.java From elasticsearch-sql with Apache License 2.0 | 4 votes |
|
private SQLMethodInvokeExpr parseSQLBinaryOpExprWhoIsConditionInWhere(SQLBinaryOpExpr soExpr) throws SqlParseException {
if (!(soExpr.getLeft() instanceof SQLCastExpr || soExpr.getRight() instanceof SQLCastExpr)) {
if (!(soExpr.getLeft() instanceof SQLMethodInvokeExpr ||
soExpr.getRight() instanceof SQLMethodInvokeExpr)) {
return null;
}
if (soExpr.getLeft() instanceof SQLMethodInvokeExpr) {
if (!SQLFunctions.buildInFunctions.contains(((SQLMethodInvokeExpr) soExpr.getLeft()).getMethodName())) {
return null;
}
}
if (soExpr.getRight() instanceof SQLMethodInvokeExpr) {
if (!SQLFunctions.buildInFunctions.contains(((SQLMethodInvokeExpr) soExpr.getRight()).getMethodName())) {
return null;
}
}
}
MethodField leftMethod = new MethodField(null, Lists.newArrayList(new KVValue("", Util.expr2Object(soExpr.getLeft(), "'"))), null, null);
if (soExpr.getLeft() instanceof SQLIdentifierExpr || soExpr.getLeft() instanceof SQLPropertyExpr) {
leftMethod = new MethodField(null, Lists.newArrayList(new KVValue("", "doc['" + Util.expr2Object(soExpr.getLeft(), "'") + "'].value")), null, null);
} else if (soExpr.getLeft() instanceof SQLMethodInvokeExpr) {
leftMethod = parseSQLMethodInvokeExprWithFunctionInWhere((SQLMethodInvokeExpr) soExpr.getLeft());
} else if (soExpr.getLeft() instanceof SQLCastExpr) {
leftMethod = parseSQLCastExprInWhere((SQLCastExpr) soExpr.getLeft());
}
MethodField rightMethod = new MethodField(null, Lists.newArrayList(new KVValue("", Util.expr2Object(soExpr.getRight(), "'"))), null, null);
if (soExpr.getRight() instanceof SQLIdentifierExpr || soExpr.getRight() instanceof SQLPropertyExpr) {
rightMethod = new MethodField(null, Lists.newArrayList(new KVValue("", "doc['" + Util.expr2Object(soExpr.getRight(), "'") + "'].value")), null, null);
} else if (soExpr.getRight() instanceof SQLMethodInvokeExpr) {
rightMethod = parseSQLMethodInvokeExprWithFunctionInWhere((SQLMethodInvokeExpr) soExpr.getRight());
} else if (soExpr.getRight() instanceof SQLCastExpr) {
rightMethod = parseSQLCastExprInWhere((SQLCastExpr) soExpr.getRight());
}
String v1 = leftMethod.getParams().get(0).value.toString();
String v1Dec = leftMethod.getParams().size() == 2 ? leftMethod.getParams().get(1).value.toString() + ";" : "";
String v2 = rightMethod.getParams().get(0).value.toString();
String v2Dec = rightMethod.getParams().size() == 2 ? rightMethod.getParams().get(1).value.toString() + ";" : "";
String operator = soExpr.getOperator().getName();
if ("=".equals(operator)) {
operator = "==";
}
String finalStr = String.format("%s%s((Comparable)%s).compareTo(%s) %s 0", v1Dec, v2Dec, v1, v2, operator);
SQLMethodInvokeExpr scriptMethod = new SQLMethodInvokeExpr("script", null);
scriptMethod.addParameter(new SQLCharExpr(finalStr));
return scriptMethod;
}
Example #21
| Source File: MysqlMethodInvocationHandler.java From Mycat2 with GNU General Public License v3.0 | 4 votes |
|
private SQLExpr invokeAddDate(SQLMethodInvokeExpr expr, boolean negative) throws SQLNonTransientException {
List<SQLExpr> parameters = expr.getParameters();
if (parameters.size() != 2) {
throwSyntaxError(expr);
}
SQLExpr p1 = parameters.get(0);
SQLExpr p2 = parameters.get(1);
if (p1 instanceof SQLMethodInvokeExpr) {
p1 = doInvoke((SQLMethodInvokeExpr) p1);
}
if (p1 instanceof SQLCharExpr) {
String time = ((SQLCharExpr) p1).getText();
Integer delta = null;
String unit = null;
if (p2 instanceof SQLIntegerExpr) {
delta = (Integer) ((SQLIntegerExpr) p2).getNumber();
unit = "DAY";
} else if (p2 instanceof MySqlIntervalExpr) {
SQLIntegerExpr value = (SQLIntegerExpr) ((MySqlIntervalExpr) p2).getValue();
delta = (Integer) value.getNumber();
unit = ((MySqlIntervalExpr) p2).getUnit().name();
} else {
throwSyntaxError(p2);
}
try {
Date date = DateUtils.parseDate(time, SUPPORT_PATTERNS);
Date result;
delta = negative ? -delta : delta;
if ("MONTH".equals(unit)) {
result = DateUtils.addMonths(date, delta);
} else if ("DAY".equals(unit)) {
result = DateUtils.addDays(date, delta);
} else if ("HOUR".equals(unit)) {
result = DateUtils.addHours(date, delta);
} else if ("MINUTE".equals(unit)) {
result = DateUtils.addMinutes(date, delta);
} else if ("SECOND".equals(unit)) {
result = DateUtils.addSeconds(date, delta);
} else {
return null;
}
String ret = DateFormatUtils.format(result, "yyyy-MM-dd HH:mm:ss");
return new SQLIdentifierExpr(ret);
} catch (ParseException e) {
LOGGER.error("",e);
}
}
return null;
}
Example #22
| Source File: ElasticSqlExprParser.java From elasticsearch-sql with Apache License 2.0 | 4 votes |
|
private SQLExpr userNameRest(SQLExpr expr) {
if (lexer.token() != Token.VARIANT || !lexer.stringVal().startsWith("@")) {
return expr;
}
MySqlUserName userName = new MySqlUserName();
if (expr instanceof SQLCharExpr) {
userName.setUserName(((SQLCharExpr) expr).toString());
} else {
userName.setUserName(((SQLIdentifierExpr) expr).getName());
}
String strVal = lexer.stringVal();
lexer.nextToken();
if (strVal.length() > 1) {
userName.setHost(strVal.substring(1));
return userName;
}
if (lexer.token() == Token.LITERAL_CHARS) {
userName.setHost("'" + lexer.stringVal() + "'");
} else {
userName.setHost(lexer.stringVal());
}
lexer.nextToken();
if (lexer.token() == Token.IDENTIFIED) {
Lexer.SavePoint mark = lexer.mark();
lexer.nextToken();
if (lexer.token() == Token.BY) {
lexer.nextToken();
if (lexer.identifierEquals(FnvHash.Constants.PASSWORD)) {
lexer.reset(mark);
} else {
userName.setIdentifiedBy(lexer.stringVal());
lexer.nextToken();
}
} else {
lexer.reset(mark);
}
}
return userName;
}
Example #23
| Source File: ElasticSqlExprParser.java From elasticsearch-sql with Apache License 2.0 | 4 votes |
|
protected SQLExpr parseAliasExpr(String alias) {
String chars = alias.substring(1, alias.length() - 1);
return new SQLCharExpr(chars);
}
Example #24
| Source File: MiddlerQueryResultHandler.java From Mycat2 with GNU General Public License v3.0 | 4 votes |
|
@Override
public void add(T t ) {
reusult.add(new SQLCharExpr(t==null?null:t.toString()));
}
Example #25
| Source File: MiddlerQueryResultHandler.java From Mycat2 with GNU General Public License v3.0 | 4 votes |
|
@Override
public List<SQLCharExpr> getResult() {
return reusult;
}
Example #26
| Source File: Paramer.java From elasticsearch-sql with Apache License 2.0 | 4 votes |
|
public static Paramer parseParamer(SQLMethodInvokeExpr method) throws SqlParseException {
Paramer instance = new Paramer();
List<SQLExpr> parameters = method.getParameters();
for (SQLExpr expr : parameters) {
if (expr instanceof SQLCharExpr) {
if (instance.value == null) {
instance.value = ((SQLCharExpr) expr).getText();
} else {
instance.analysis = ((SQLCharExpr) expr).getText();
}
} else if (expr instanceof SQLNumericLiteralExpr) {
instance.boost = ((SQLNumericLiteralExpr) expr).getNumber().floatValue();
} else if (expr instanceof SQLBinaryOpExpr) {
SQLBinaryOpExpr sqlExpr = (SQLBinaryOpExpr) expr;
switch (Util.expr2Object(sqlExpr.getLeft()).toString()) {
case "query":
instance.value = Util.expr2Object(sqlExpr.getRight()).toString();
break;
case "analyzer":
instance.analysis = Util.expr2Object(sqlExpr.getRight()).toString();
break;
case "boost":
instance.boost = Float.parseFloat(Util.expr2Object(sqlExpr.getRight()).toString());
break;
case "slop":
instance.slop = Integer.parseInt(Util.expr2Object(sqlExpr.getRight()).toString());
break;
case "fields":
int index;
for (String f : Strings.splitStringByCommaToArray(Util.expr2Object(sqlExpr.getRight()).toString())) {
index = f.lastIndexOf('^');
if (-1 < index) {
instance.fieldsBoosts.put(f.substring(0, index), Float.parseFloat(f.substring(index + 1)));
} else {
instance.fieldsBoosts.put(f, 1.0F);
}
}
break;
case "type":
instance.type = Util.expr2Object(sqlExpr.getRight()).toString();
break;
case "tie_breaker":
instance.tieBreaker = Float.parseFloat(Util.expr2Object(sqlExpr.getRight()).toString());
break;
case "operator":
instance.operator = Operator.fromString(Util.expr2Object(sqlExpr.getRight()).toString());
break;
case "default_field":
instance.defaultField = Util.expr2Object(sqlExpr.getRight()).toString();
break;
case "in_order":
instance.inOrder = Boolean.valueOf(Util.expr2Object(sqlExpr.getRight()).toString());
break;
case "clauses":
instance.clauses = Util.expr2Object(sqlExpr.getRight()).toString();
break;
case "minimum_should_match":
instance.minimumShouldMatch = Util.expr2Object(sqlExpr.getRight()).toString();
break;
default:
break;
}
}
}
return instance;
}
Example #27
| Source File: MiddlerResultHandler.java From Mycat2 with GNU General Public License v3.0 | votes |
|
public List<SQLCharExpr> getResult();
