diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/DB2StatementImpl.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/DB2StatementImpl.java new file mode 100644 index 0000000000..16bee1a003 --- /dev/null +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/DB2StatementImpl.java @@ -0,0 +1,35 @@ +/* + * 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.sql.dialect.db2.ast; + +import com.alibaba.druid.sql.ast.SQLStatementImpl; +import com.alibaba.druid.sql.dialect.db2.visitor.DB2ASTVisitor; +import com.alibaba.druid.sql.visitor.SQLASTVisitor; + +public abstract class DB2StatementImpl extends SQLStatementImpl implements DB2Object { + @Override + protected void accept0(SQLASTVisitor visitor) { + if (visitor instanceof DB2ASTVisitor) { + accept0((DB2ASTVisitor) visitor); + return; + } + + super.accept0(visitor); + } + + @Override + public abstract void accept0(DB2ASTVisitor visitor); +} diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/stmt/DB2ValuesStatement.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/stmt/DB2ValuesStatement.java new file mode 100644 index 0000000000..ec29d16aa8 --- /dev/null +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/ast/stmt/DB2ValuesStatement.java @@ -0,0 +1,45 @@ +/* + * 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.sql.dialect.db2.ast.stmt; + +import com.alibaba.druid.sql.ast.SQLExpr; +import com.alibaba.druid.sql.dialect.db2.ast.DB2StatementImpl; +import com.alibaba.druid.sql.dialect.db2.visitor.DB2ASTVisitor; + +public class DB2ValuesStatement extends DB2StatementImpl { + + private SQLExpr expr; + + @Override + public void accept0(DB2ASTVisitor visitor) { + if (visitor.visit(this)) { + acceptChild(visitor, expr); + } + visitor.endVisit(this); + } + + public SQLExpr getExpr() { + return expr; + } + + public void setExpr(SQLExpr expr) { + if (expr != null) { + expr.setParent(this); + } + this.expr = expr; + } + +} diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2StatementParser.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2StatementParser.java index 92f71a291c..56eef12071 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2StatementParser.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2StatementParser.java @@ -15,8 +15,13 @@ */ package com.alibaba.druid.sql.dialect.db2.parser; +import java.util.List; + +import com.alibaba.druid.sql.ast.SQLStatement; +import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2ValuesStatement; import com.alibaba.druid.sql.parser.Lexer; import com.alibaba.druid.sql.parser.SQLStatementParser; +import com.alibaba.druid.sql.parser.Token; public class DB2StatementParser extends SQLStatementParser { @@ -31,4 +36,16 @@ public class DB2StatementParser extends SQLStatementParser { public DB2SelectParser createSQLSelectParser() { return new DB2SelectParser(this.exprParser); } + + public boolean parseStatementListDialect(List statementList) { + if (lexer.token() == Token.VALUES) { + lexer.nextToken(); + DB2ValuesStatement stmt = new DB2ValuesStatement(); + stmt.setExpr(this.exprParser.expr()); + statementList.add(stmt); + return true; + } + + return false; + } } diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitor.java index 439442e7fd..21369fe73c 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitor.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitor.java @@ -16,6 +16,7 @@ package com.alibaba.druid.sql.dialect.db2.visitor; import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2SelectQueryBlock; +import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2ValuesStatement; import com.alibaba.druid.sql.visitor.SQLASTVisitor; public interface DB2ASTVisitor extends SQLASTVisitor { @@ -23,4 +24,8 @@ public interface DB2ASTVisitor extends SQLASTVisitor { boolean visit(DB2SelectQueryBlock x); void endVisit(DB2SelectQueryBlock x); + + boolean visit(DB2ValuesStatement x); + + void endVisit(DB2ValuesStatement x); } diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitorAdapter.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitorAdapter.java index 9e6a9bbedc..0164620d7b 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitorAdapter.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2ASTVisitorAdapter.java @@ -16,6 +16,7 @@ package com.alibaba.druid.sql.dialect.db2.visitor; import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2SelectQueryBlock; +import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2ValuesStatement; import com.alibaba.druid.sql.visitor.SQLASTVisitorAdapter; public class DB2ASTVisitorAdapter extends SQLASTVisitorAdapter implements DB2ASTVisitor { @@ -29,5 +30,15 @@ public class DB2ASTVisitorAdapter extends SQLASTVisitorAdapter implements DB2AST public void endVisit(DB2SelectQueryBlock x) { } + + @Override + public boolean visit(DB2ValuesStatement x) { + return true; + } + + @Override + public void endVisit(DB2ValuesStatement x) { + + } } diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2OutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2OutputVisitor.java index a47b2b3529..7d5bf20d37 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2OutputVisitor.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2OutputVisitor.java @@ -17,6 +17,7 @@ package com.alibaba.druid.sql.dialect.db2.visitor; import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock; import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2SelectQueryBlock; +import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2ValuesStatement; import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor; public class DB2OutputVisitor extends SQLASTOutputVisitor implements DB2ASTVisitor { @@ -28,31 +29,31 @@ public class DB2OutputVisitor extends SQLASTOutputVisitor implements DB2ASTVisit @Override public boolean visit(DB2SelectQueryBlock x) { this.visit((SQLSelectQueryBlock) x); - + if (x.getFirst() != null) { println(); print("FETCH FIRST "); x.getFirst().accept(this); print(" ROWS ONLY"); } - + if (x.isForReadOnly()) { println(); print("FOR READ ONLY"); } - + if (x.getIsolation() != null) { println(); print("WITH "); print(x.getIsolation().name()); } - + if (x.getOptimizeFor() != null) { println(); print("OPTIMIZE FOR "); x.getOptimizeFor().accept(this); } - + return false; } @@ -60,4 +61,16 @@ public class DB2OutputVisitor extends SQLASTOutputVisitor implements DB2ASTVisit public void endVisit(DB2SelectQueryBlock x) { } + + @Override + public boolean visit(DB2ValuesStatement x) { + print("VALUES "); + x.getExpr().accept(this); + return false; + } + + @Override + public void endVisit(DB2ValuesStatement x) { + + } } diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2SchemaStatVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2SchemaStatVisitor.java index c444b0a879..e2f3b04f24 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2SchemaStatVisitor.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/visitor/DB2SchemaStatVisitor.java @@ -17,6 +17,7 @@ package com.alibaba.druid.sql.dialect.db2.visitor; import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock; import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2SelectQueryBlock; +import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2ValuesStatement; import com.alibaba.druid.sql.visitor.SchemaStatVisitor; import com.alibaba.druid.util.JdbcUtils; @@ -37,4 +38,13 @@ public class DB2SchemaStatVisitor extends SchemaStatVisitor implements DB2ASTVis } + @Override + public boolean visit(DB2ValuesStatement x) { + return false; + } + + @Override + public void endVisit(DB2ValuesStatement x) { + + } } diff --git a/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2Values_Test.java b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2Values_Test.java new file mode 100644 index 0000000000..9dea30492f --- /dev/null +++ b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2Values_Test.java @@ -0,0 +1,65 @@ +/* + * 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.db2; + +import java.util.List; + +import org.junit.Assert; + +import com.alibaba.druid.sql.DB2Test; +import com.alibaba.druid.sql.SQLUtils; +import com.alibaba.druid.sql.ast.SQLStatement; +import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser; +import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor; +import com.alibaba.druid.stat.TableStat; +import com.alibaba.druid.stat.TableStat.Column; +import com.alibaba.druid.util.JdbcConstants; + +public class DB2Values_Test extends DB2Test { + + public void test_0() throws Exception { + String sql = "values 1"; + + DB2StatementParser parser = new DB2StatementParser(sql); + List statementList = parser.parseStatementList(); + SQLStatement stmt = statementList.get(0); + print(statementList); + + Assert.assertEquals(1, statementList.size()); + + DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor(); + 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(0, visitor.getTables().size()); + Assert.assertEquals(0, visitor.getColumns().size()); + Assert.assertEquals(0, visitor.getConditions().size()); + +// Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("t"))); + +// Assert.assertTrue(visitor.getColumns().contains(new Column("t", "*"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name"))); + + String output = SQLUtils.toSQLString(stmt, JdbcConstants.DB2); + Assert.assertEquals("VALUES 1", // + output); + } +}