/*
 * Copyright 1999-2017 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.oracle.select;

import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import org.junit.Assert;

import java.util.List;

public class OracleSelectTest19 extends OracleTest {
    public void test_0() throws Exception {
        String sql = //
                "SELECT ddf.file_name file_name, vdf.status status, ddf.tablespace_name tablespace_name" + //
                        ", '', ddf.autoextensible autoextensible" + //
                        "   , ddf.increment_by increment_by, ddf.maxbytes max_file_size, vdf.create_bytes " + //
                        "FROM sys.dba_data_files ddf, v$datafile vdf /*+ all_rows use_concat */ " + //
                        "WHERE (ddf.file_name = vdf.name) " + //
                        "UNION ALL " + //
                        "SELECT dtf.file_name file_name, vtf.status status, dtf.tablespace_name tablespace_name" + //
                        "   , '', dtf.autoextensible autoextensible, dtf.increment_by increment_by" + //
                        "   , dtf.maxbytes max_file_size, vtf.create_bytes " + //
                        "FROM sys.dba_temp_files dtf, v$tempfile vtf " + //
                        "WHERE (dtf.file_id = vtf.file#) "; //

        OracleStatementParser parser = new OracleStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement statemen = statementList.get(0);
        print(statementList);

        Assert.assertEquals(1, statementList.size());

        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
        statemen.accept(visitor);

        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
        System.out.println("coditions : " + visitor.getConditions());
        System.out.println("relationships : " + visitor.getRelationships());
        System.out.println("orderBy : " + visitor.getOrderByColumns());

        Assert.assertEquals(4, visitor.getTables().size());

        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("sys.dba_data_files")));

        Assert.assertEquals(17, visitor.getColumns().size());

        Assert.assertTrue(visitor.containsColumn("sys.dba_data_files", "file_name"));
        Assert.assertTrue(visitor.containsColumn("v$datafile", "status"));
        Assert.assertTrue(visitor.containsColumn("sys.dba_data_files", "tablespace_name"));
    }
}
