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Code Issues Releases Wiki Activity

improve sql parser

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This commit is contained in:
wenshao
2013-08-04 10:16:50 +08:00
parent 459901e8d9
commit c6d0165893
16 changed files with 244 additions and 46 deletions
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src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlDescTest_0.java
+57
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@@ -0,0 +1,57 @@
/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.druid.bvt.sql.mysql;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.MysqlTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
public class MySqlDescTest_0 extends MysqlTest {
public void test_0() throws Exception {
String sql = " Desc City";
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement stmt = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
stmt.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("coditions : " + visitor.getConditions());
System.out.println("orderBy : " + visitor.getOrderByColumns());
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertEquals(0, visitor.getColumns().size());
Assert.assertEquals(0, visitor.getConditions().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("City")));
// Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("t2")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("t2", "id")));
}
}
src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlDescribteTest.java
+2 -2
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@@ -32,13 +32,13 @@ public class MySqlDescribteTest extends MysqlTest {
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
SQLStatement stmt = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
statemen.accept(visitor);
stmt.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlExplainTest_0.java
+57
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@@ -0,0 +1,57 @@
/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.druid.bvt.sql.mysql;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.MysqlTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
public class MySqlExplainTest_0 extends MysqlTest {
public void test_0() throws Exception {
String sql = "explain SELECT * FROM sonar.groups where id = 1";
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement stmt = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
stmt.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("coditions : " + visitor.getConditions());
System.out.println("orderBy : " + visitor.getOrderByColumns());
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertEquals(2, visitor.getColumns().size());
Assert.assertEquals(1, visitor.getConditions().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("sonar.groups")));
// Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("t2")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("t2", "id")));
}
}
src/test/java/com/alibaba/druid/bvt/sql/mysql/MySqlSetTest_0.java
+6 -6
View File
@@ -30,14 +30,14 @@ public class MySqlSetTest_0 extends MysqlTest {
String sql = "SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ";
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> stmt = parser.parseStatementList();
SQLStatement statemen = stmt.get(0);
print(stmt);
List<SQLStatement> stmtList = parser.parseStatementList();
SQLStatement stmt = stmtList.get(0);
print(stmtList);
Assert.assertEquals(1, stmt.size());
Assert.assertEquals(1, stmtList.size());
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
statemen.accept(visitor);
stmt.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
@@ -48,7 +48,7 @@ public class MySqlSetTest_0 extends MysqlTest {
Assert.assertEquals(0, visitor.getColumns().size());
Assert.assertEquals(0, visitor.getConditions().size());
String text = output(stmt);
String text = output(stmtList);
Assert.assertEquals("SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ", text);
}