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体验新版 GitCode,发现更多精彩内容 >>
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66e55075
编写于
5月 11, 2019
作者:
T
terrymanu
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差异文件
for #2084, add pagination for oracle with 3rd generation parse engine
上级
cf424400
变更
6
隐藏空白更改
内联
并排
Showing
6 changed file
with
181 addition
and
3 deletion
+181
-3
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/extractor/impl/dml/select/SelectItemsExtractor.java
...antlr/extractor/impl/dml/select/SelectItemsExtractor.java
+28
-0
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/ShardingOrPredicateFiller.java
.../antlr/filler/sharding/dml/ShardingOrPredicateFiller.java
+7
-0
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/select/ShardingRowNumberPredicateFiller.java
...sharding/dml/select/ShardingRowNumberPredicateFiller.java
+140
-0
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/select/ShardingSubqueryPredicateFiller.java
.../sharding/dml/select/ShardingSubqueryPredicateFiller.java
+3
-0
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/old/parser/sql/SQLParserFactory.java
...ingsphere/core/parse/old/parser/sql/SQLParserFactory.java
+2
-2
sharding-core/sharding-core-parse/sharding-core-parse-oracle/src/main/resources/META-INF/parsing-rule-definition/sharding/oracle/sql-statement-rule-definition.xml
...inition/sharding/oracle/sql-statement-rule-definition.xml
+1
-1
未找到文件。
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/extractor/impl/dml/select/SelectItemsExtractor.java
浏览文件 @
66e55075
...
...
@@ -18,15 +18,20 @@
package
org.apache.shardingsphere.core.parse.antlr.extractor.impl.dml.select
;
import
com.google.common.base.Optional
;
import
com.google.common.base.Preconditions
;
import
org.antlr.v4.runtime.ParserRuleContext
;
import
org.apache.shardingsphere.core.parse.antlr.extractor.api.OptionalSQLSegmentExtractor
;
import
org.apache.shardingsphere.core.parse.antlr.extractor.impl.dml.select.item.SelectItemExtractor
;
import
org.apache.shardingsphere.core.parse.antlr.extractor.util.ExtractorUtils
;
import
org.apache.shardingsphere.core.parse.antlr.extractor.util.RuleName
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.SelectItemsSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.item.ColumnSelectItemSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.item.SelectItemSegment
;
import
java.util.Collection
;
import
java.util.LinkedList
;
import
java.util.Map
;
import
java.util.TreeSet
;
/**
* Select items extractor.
...
...
@@ -36,8 +41,17 @@ import java.util.Map;
*/
public
final
class
SelectItemsExtractor
implements
OptionalSQLSegmentExtractor
{
// TODO recognize database type, only oracle and sqlserver can use row number
private
final
Collection
<
String
>
rowNumberIdentifiers
;
private
final
SelectItemExtractor
selectItemExtractor
=
new
SelectItemExtractor
();
public
SelectItemsExtractor
()
{
rowNumberIdentifiers
=
new
TreeSet
<>(
String
.
CASE_INSENSITIVE_ORDER
);
rowNumberIdentifiers
.
add
(
"rownum"
);
rowNumberIdentifiers
.
add
(
"ROW_NUMBER"
);
}
@Override
public
Optional
<
SelectItemsSegment
>
extract
(
final
ParserRuleContext
ancestorNode
,
final
Map
<
ParserRuleContext
,
Integer
>
parameterMarkerIndexes
)
{
ParserRuleContext
selectItemsNode
=
ExtractorUtils
.
getFirstChildNode
(
findMainQueryNode
(
ancestorNode
),
RuleName
.
SELECT_ITEMS
);
...
...
@@ -47,6 +61,7 @@ public final class SelectItemsExtractor implements OptionalSQLSegmentExtractor {
setUnqualifiedShorthandSelectItemSegment
(
unqualifiedShorthandNode
.
get
(),
result
,
parameterMarkerIndexes
);
}
setSelectItemSegment
(
selectItemsNode
,
result
,
parameterMarkerIndexes
);
result
.
getSelectItems
().
addAll
(
extractRowNumberSelectItem
(
ancestorNode
,
parameterMarkerIndexes
));
return
Optional
.
of
(
result
);
}
...
...
@@ -84,4 +99,17 @@ public final class SelectItemsExtractor implements OptionalSQLSegmentExtractor {
}
return
ancestorNode
;
}
private
Collection
<
SelectItemSegment
>
extractRowNumberSelectItem
(
final
ParserRuleContext
ancestorNode
,
final
Map
<
ParserRuleContext
,
Integer
>
parameterMarkerIndexes
)
{
Collection
<
SelectItemSegment
>
result
=
new
LinkedList
<>();
Collection
<
ParserRuleContext
>
selectItemNodes
=
ExtractorUtils
.
getAllDescendantNodes
(
ancestorNode
,
RuleName
.
SELECT_ITEM
);
for
(
ParserRuleContext
each
:
selectItemNodes
)
{
Optional
<?
extends
SelectItemSegment
>
selectItemSegment
=
selectItemExtractor
.
extract
(
each
,
parameterMarkerIndexes
);
Preconditions
.
checkState
(
selectItemSegment
.
isPresent
());
if
(
selectItemSegment
.
get
()
instanceof
ColumnSelectItemSegment
&&
rowNumberIdentifiers
.
contains
(((
ColumnSelectItemSegment
)
selectItemSegment
.
get
()).
getName
()))
{
result
.
add
(
selectItemSegment
.
get
());
}
}
return
result
;
}
}
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/ShardingOrPredicateFiller.java
浏览文件 @
66e55075
...
...
@@ -25,6 +25,7 @@ import org.apache.shardingsphere.core.parse.antlr.filler.api.ShardingRuleAwareFi
import
org.apache.shardingsphere.core.parse.antlr.filler.api.ShardingTableMetaDataAwareFiller
;
import
org.apache.shardingsphere.core.parse.antlr.filler.common.dml.PredicateUtils
;
import
org.apache.shardingsphere.core.parse.antlr.filler.encrypt.dml.EncryptOrPredicateFiller
;
import
org.apache.shardingsphere.core.parse.antlr.filler.sharding.dml.select.ShardingRowNumberPredicateFiller
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.AndPredicateSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.OrPredicateSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.PredicateSegment
;
...
...
@@ -32,6 +33,7 @@ import org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.valu
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.value.PredicateCompareRightValue
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.value.PredicateInRightValue
;
import
org.apache.shardingsphere.core.parse.antlr.sql.statement.SQLStatement
;
import
org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.SelectStatement
;
import
org.apache.shardingsphere.core.parse.old.parser.context.condition.AndCondition
;
import
org.apache.shardingsphere.core.parse.old.parser.context.condition.Column
;
import
org.apache.shardingsphere.core.parse.old.parser.context.condition.Condition
;
...
...
@@ -47,6 +49,8 @@ import org.apache.shardingsphere.core.rule.ShardingRule;
@Setter
public
final
class
ShardingOrPredicateFiller
implements
SQLSegmentFiller
<
OrPredicateSegment
>,
ShardingRuleAwareFiller
,
ShardingTableMetaDataAwareFiller
{
private
final
ShardingRowNumberPredicateFiller
shardingRowNumberPredicateFiller
=
new
ShardingRowNumberPredicateFiller
();
private
ShardingRule
shardingRule
;
private
ShardingTableMetaData
shardingTableMetaData
;
...
...
@@ -54,6 +58,9 @@ public final class ShardingOrPredicateFiller implements SQLSegmentFiller<OrPredi
@Override
public
void
fill
(
final
OrPredicateSegment
sqlSegment
,
final
SQLStatement
sqlStatement
)
{
sqlStatement
.
getRouteConditions
().
getOrCondition
().
getAndConditions
().
addAll
(
buildCondition
(
sqlSegment
,
sqlStatement
).
getAndConditions
());
if
(
sqlStatement
instanceof
SelectStatement
)
{
shardingRowNumberPredicateFiller
.
fill
(
sqlSegment
,
sqlStatement
);
}
}
/**
...
...
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/select/ShardingRowNumberPredicateFiller.java
0 → 100644
浏览文件 @
66e55075
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package
org.apache.shardingsphere.core.parse.antlr.filler.sharding.dml.select
;
import
com.google.common.base.Optional
;
import
org.apache.shardingsphere.core.parse.antlr.filler.api.SQLSegmentFiller
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.expr.ExpressionSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.expr.simple.LiteralExpressionSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.expr.simple.ParameterMarkerExpressionSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.AndPredicateSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.OrPredicateSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.PredicateSegment
;
import
org.apache.shardingsphere.core.parse.antlr.sql.segment.dml.predicate.value.PredicateCompareRightValue
;
import
org.apache.shardingsphere.core.parse.antlr.sql.statement.SQLStatement
;
import
org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.SelectStatement
;
import
org.apache.shardingsphere.core.parse.antlr.sql.token.OffsetToken
;
import
org.apache.shardingsphere.core.parse.antlr.sql.token.RowCountToken
;
import
org.apache.shardingsphere.core.parse.old.parser.context.limit.Limit
;
import
org.apache.shardingsphere.core.parse.old.parser.context.limit.LimitValue
;
import
org.apache.shardingsphere.core.parse.old.parser.context.selectitem.SelectItem
;
import
java.util.Collection
;
import
java.util.LinkedList
;
import
java.util.TreeSet
;
/**
* Row number predicate filler for sharding.
*
* @author zhangliang
*/
public
final
class
ShardingRowNumberPredicateFiller
implements
SQLSegmentFiller
<
OrPredicateSegment
>
{
// TODO recognize database type, only oracle and sqlserver can use row number
private
final
Collection
<
String
>
rowNumberIdentifiers
;
public
ShardingRowNumberPredicateFiller
()
{
rowNumberIdentifiers
=
new
TreeSet
<>(
String
.
CASE_INSENSITIVE_ORDER
);
rowNumberIdentifiers
.
add
(
"rownum"
);
rowNumberIdentifiers
.
add
(
"ROW_NUMBER"
);
}
@Override
public
void
fill
(
final
OrPredicateSegment
sqlSegment
,
final
SQLStatement
sqlStatement
)
{
SelectStatement
selectStatement
=
(
SelectStatement
)
sqlStatement
;
Optional
<
String
>
rowNumberAlias
=
findRowNumberAlias
(
selectStatement
);
Collection
<
PredicateSegment
>
rowNumberPredicates
=
getRowNumberPredicates
(
sqlSegment
,
rowNumberAlias
.
orNull
());
if
(!
rowNumberPredicates
.
isEmpty
())
{
fillLimit
(
selectStatement
,
rowNumberPredicates
);
}
}
private
Optional
<
String
>
findRowNumberAlias
(
final
SelectStatement
selectStatement
)
{
for
(
SelectItem
each
:
selectStatement
.
getItems
())
{
if
(
rowNumberIdentifiers
.
contains
(
each
.
getExpression
()))
{
return
each
.
getAlias
();
}
}
return
Optional
.
absent
();
}
private
Collection
<
PredicateSegment
>
getRowNumberPredicates
(
final
OrPredicateSegment
sqlSegment
,
final
String
rowNumberAlias
)
{
Collection
<
PredicateSegment
>
result
=
new
LinkedList
<>();
for
(
AndPredicateSegment
each
:
sqlSegment
.
getAndPredicates
())
{
for
(
PredicateSegment
predicate
:
each
.
getPredicates
())
{
if
(
isRowNumberColumn
(
predicate
,
rowNumberAlias
)
&&
isCompareCondition
(
predicate
))
{
result
.
add
(
predicate
);
}
}
}
return
result
;
}
private
boolean
isRowNumberColumn
(
final
PredicateSegment
predicate
,
final
String
rowNumberAlias
)
{
return
rowNumberIdentifiers
.
contains
(
predicate
.
getColumn
().
getName
())
||
predicate
.
getColumn
().
getName
().
equalsIgnoreCase
(
rowNumberAlias
);
}
private
boolean
isCompareCondition
(
final
PredicateSegment
predicate
)
{
if
(!(
predicate
.
getRightValue
()
instanceof
PredicateCompareRightValue
))
{
return
false
;
}
String
operator
=
((
PredicateCompareRightValue
)
predicate
.
getRightValue
()).
getOperator
();
return
"<"
.
equals
(
operator
)
||
"<="
.
equals
(
operator
)
||
">"
.
equals
(
operator
)
||
">="
.
equals
(
operator
);
}
private
void
fillLimit
(
final
SelectStatement
selectStatement
,
final
Collection
<
PredicateSegment
>
rowNumberPredicates
)
{
Limit
limit
=
new
Limit
();
for
(
PredicateSegment
each
:
rowNumberPredicates
)
{
ExpressionSegment
expression
=
((
PredicateCompareRightValue
)
each
.
getRightValue
()).
getExpression
();
switch
(((
PredicateCompareRightValue
)
each
.
getRightValue
()).
getOperator
())
{
case
"<"
:
limit
.
setRowCount
(
createLimitValue
(
expression
,
false
));
if
(-
1
!=
limit
.
getRowCount
().
getValue
())
{
selectStatement
.
addSQLToken
(
new
RowCountToken
(
expression
.
getStartIndex
(),
expression
.
getStopIndex
(),
limit
.
getRowCount
().
getValue
()));
}
break
;
case
"<="
:
limit
.
setRowCount
(
createLimitValue
(
expression
,
true
));
if
(-
1
!=
limit
.
getRowCount
().
getValue
())
{
selectStatement
.
addSQLToken
(
new
RowCountToken
(
expression
.
getStartIndex
(),
expression
.
getStopIndex
(),
limit
.
getRowCount
().
getValue
()));
}
break
;
case
">"
:
limit
.
setOffset
(
createLimitValue
(
expression
,
false
));
if
(-
1
!=
limit
.
getOffset
().
getValue
())
{
selectStatement
.
addSQLToken
(
new
OffsetToken
(
expression
.
getStartIndex
(),
expression
.
getStopIndex
(),
limit
.
getOffset
().
getValue
()));
}
break
;
case
">="
:
limit
.
setOffset
(
createLimitValue
(
expression
,
true
));
if
(-
1
!=
limit
.
getOffset
().
getValue
())
{
selectStatement
.
addSQLToken
(
new
OffsetToken
(
expression
.
getStartIndex
(),
expression
.
getStopIndex
(),
limit
.
getOffset
().
getValue
()));
}
break
;
default
:
break
;
}
}
selectStatement
.
setLimit
(
limit
);
}
private
LimitValue
createLimitValue
(
final
ExpressionSegment
expression
,
final
boolean
boundOpened
)
{
return
expression
instanceof
ParameterMarkerExpressionSegment
?
new
LimitValue
(-
1
,
((
ParameterMarkerExpressionSegment
)
expression
).
getParameterMarkerIndex
(),
boundOpened
)
:
new
LimitValue
(((
Number
)
((
LiteralExpressionSegment
)
expression
).
getLiterals
()).
intValue
(),
-
1
,
boundOpened
);
}
}
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/antlr/filler/sharding/dml/select/ShardingSubqueryPredicateFiller.java
浏览文件 @
66e55075
...
...
@@ -37,6 +37,8 @@ import org.apache.shardingsphere.core.rule.ShardingRule;
@Setter
public
final
class
ShardingSubqueryPredicateFiller
implements
SQLSegmentFiller
<
SubqueryPredicateSegment
>,
ShardingRuleAwareFiller
,
ShardingTableMetaDataAwareFiller
{
private
final
ShardingRowNumberPredicateFiller
shardingRowNumberPredicateFiller
=
new
ShardingRowNumberPredicateFiller
();
private
ShardingRule
shardingRule
;
private
ShardingTableMetaData
shardingTableMetaData
;
...
...
@@ -47,6 +49,7 @@ public final class ShardingSubqueryPredicateFiller implements SQLSegmentFiller<S
ShardingOrPredicateFiller
shardingOrPredicateFiller
=
getShardingOrPredicateFiller
();
for
(
OrPredicateSegment
each
:
sqlSegment
.
getOrPredicates
())
{
selectStatement
.
getSubqueryConditions
().
add
(
shardingOrPredicateFiller
.
buildCondition
(
each
,
sqlStatement
));
shardingRowNumberPredicateFiller
.
fill
(
each
,
sqlStatement
);
}
}
...
...
sharding-core/sharding-core-parse/sharding-core-parse-common/src/main/java/org/apache/shardingsphere/core/parse/old/parser/sql/SQLParserFactory.java
浏览文件 @
66e55075
...
...
@@ -57,7 +57,7 @@ public final class SQLParserFactory {
*/
public
static
SQLParser
newInstance
(
final
DatabaseType
dbType
,
final
ShardingRule
shardingRule
,
final
LexerEngine
lexerEngine
,
final
ShardingTableMetaData
shardingTableMetaData
,
final
String
sql
)
{
if
(
DatabaseType
.
MySQL
==
dbType
||
DatabaseType
.
H2
==
dbType
||
DatabaseType
.
PostgreSQL
==
dbType
)
{
if
(
DatabaseType
.
MySQL
==
dbType
||
DatabaseType
.
H2
==
dbType
||
DatabaseType
.
PostgreSQL
==
dbType
||
DatabaseType
.
Oracle
==
dbType
)
{
return
new
AntlrParsingEngine
(
dbType
,
sql
,
shardingRule
,
shardingTableMetaData
);
}
lexerEngine
.
nextToken
();
...
...
@@ -81,7 +81,7 @@ public final class SQLParserFactory {
* @return sql parser
*/
public
static
SQLParser
newInstance
(
final
DatabaseType
dbType
,
final
EncryptRule
encryptRule
,
final
ShardingTableMetaData
shardingTableMetaData
,
final
String
sql
)
{
if
(
DatabaseType
.
MySQL
==
dbType
||
DatabaseType
.
H2
==
dbType
||
DatabaseType
.
PostgreSQL
==
dbType
)
{
if
(
DatabaseType
.
MySQL
==
dbType
||
DatabaseType
.
H2
==
dbType
||
DatabaseType
.
PostgreSQL
==
dbType
||
DatabaseType
.
Oracle
==
dbType
)
{
return
new
AntlrParsingEngine
(
dbType
,
sql
,
encryptRule
,
shardingTableMetaData
);
}
throw
new
SQLParsingUnsupportedException
(
String
.
format
(
"Can not support %s"
,
dbType
));
...
...
sharding-core/sharding-core-parse/sharding-core-parse-oracle/src/main/resources/META-INF/parsing-rule-definition/sharding/oracle/sql-statement-rule-definition.xml
浏览文件 @
66e55075
...
...
@@ -29,7 +29,7 @@
<sql-statement-rule
context=
"insert"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.InsertStatement"
extractor-rule-refs=
"table, columns, insertColumns, insertValues"
/>
<sql-statement-rule
context=
"update"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.UpdateStatement"
extractor-rule-refs=
"tableReferences, columns, setAssignments, where, predicate"
/>
<sql-statement-rule
context=
"delete"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.DeleteStatement"
extractor-rule-refs=
"tables, columns, where, predicate"
/>
<sql-statement-rule
context=
"select"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.SelectStatement"
extractor-rule-refs=
"tableReferences, columns, selectItems,
where, predicate, groupBy, orderBy, subqueryPredicate
"
optimizer-class=
"org.apache.shardingsphere.core.parse.antlr.optimizer.select.SelectOptimizer"
/>
<sql-statement-rule
context=
"select"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.SelectStatement"
extractor-rule-refs=
"tableReferences, columns, selectItems,
subqueryPredicate, where, predicate, groupBy, orderBy
"
optimizer-class=
"org.apache.shardingsphere.core.parse.antlr.optimizer.select.SelectOptimizer"
/>
<sql-statement-rule
context=
"setTransaction"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.tcl.SetTransactionStatement"
/>
<sql-statement-rule
context=
"commit"
sql-statement-class=
"org.apache.shardingsphere.core.parse.antlr.sql.statement.tcl.CommitStatement"
/>
...
...
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