diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java index 5798b65234..e107379034 100644 --- a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java +++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java @@ -47,6 +47,9 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet protected boolean groupItemSingleLine = false; protected List parameters; + protected Set tables; + + protected boolean exportTables = false; protected String dbType; @@ -108,6 +111,10 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet return parameters; } + public Set getTables() { + return this.tables; + } + public void setParameters(List parameters) { this.parameters = parameters; } @@ -152,6 +159,14 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet this.parameterizedMergeInList = parameterizedMergeInList; } + public boolean isExportTables() { + return exportTables; + } + + public void setExportTables(boolean exportTables) { + this.exportTables = exportTables; + } + public void print(char value) { if (this.appender == null) { return; @@ -1066,9 +1081,21 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet return false; } + protected void addTable(String table) { + if (tables == null) { + tables = new HashSet(); + } + this.tables.add(table); + } + protected void printTableSourceExpr(SQLExpr expr) { + if (exportTables) { + addTable(expr.toString()); + } + if (tableMapping != null && expr instanceof SQLName) { String tableName = expr.toString(); + String destTableName = tableMapping.get(tableName); if (destTableName != null) { tableName = destTableName; diff --git a/src/test/java/com/alibaba/druid/bvt/sql/mysql/select/MySqlSelectTest_exportTables.java b/src/test/java/com/alibaba/druid/bvt/sql/mysql/select/MySqlSelectTest_exportTables.java new file mode 100644 index 0000000000..f8df324538 --- /dev/null +++ b/src/test/java/com/alibaba/druid/bvt/sql/mysql/select/MySqlSelectTest_exportTables.java @@ -0,0 +1,67 @@ +/* + * Copyright 1999-2101 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.select; + +import com.alibaba.druid.sql.MysqlTest; +import com.alibaba.druid.sql.SQLUtils; +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.sql.visitor.SQLASTOutputVisitor; +import com.alibaba.druid.util.JdbcConstants; +import org.junit.Assert; + +import java.util.List; + +public class MySqlSelectTest_exportTables extends MysqlTest { + + public void test_0() throws Exception { + String sql = "select *\n" + + "from my_table\n" + + "where level between 10-5 and 10+5\n" + + "order by -ABS(10 - level) desc\n" + + "limit 0,100"; + + + MySqlStatementParser parser = new MySqlStatementParser(sql); + List statementList = parser.parseStatementList(); + SQLStatement stmt = statementList.get(0); +// print(statementList); + + assertEquals(1, statementList.size()); + + StringBuffer out = new StringBuffer(); + SQLASTOutputVisitor visitor = SQLUtils.createOutputVisitor(out, JdbcConstants.MYSQL); + visitor.setExportTables(true); + + stmt.accept(visitor); + + + assertEquals("SELECT *\n" + + "FROM my_table\n" + + "WHERE level BETWEEN 10 - 5 AND 10 + 5\n" + + "ORDER BY -ABS(10 - level) DESC\n" + + "LIMIT 0, 100", // + out.toString()); + + assertNotNull(visitor.getTables()); + assertEquals(1, visitor.getTables().size()); + assertTrue(visitor.getTables().contains("my_table")); + } + + + +}