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package common;

/*

* Date: 11-7-28

*/

import gudusoft.gsqlparser.EDbVendor;

import gudusoft.gsqlparser.ETableSource;

import gudusoft.gsqlparser.TGSqlParser;

import gudusoft.gsqlparser.nodes.*;

import gudusoft.gsqlparser.stmt.TMergeSqlStatement;

import gudusoft.gsqlparser.stmt.TSelectSqlStatement;

import junit.framework.TestCase;

public class testMerge extends TestCase {

public void testDB2(){

TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvdb2);

sqlparser.sqltext = "MERGE INTO archive ar\n" +

"USING (SELECT activity,description FROM activities)ac\n" +

"ON (ar.activity =ac.activity)\n" +

"WHEN MATCHED THEN\n" +

"UPDATE SET\n" +

"description =ac.description\n" +

"WHEN NOT MATCHED THEN\n" +

"INSERT\n" +

"(activity,description)\n" +

"VALUES (ac.activity,ac.description);";

assertTrue(sqlparser.parse() == 0);

TMergeSqlStatement mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

assertTrue(mergeSqlStatement.getTargetTable().toString().equalsIgnoreCase("archive"));

assertTrue(mergeSqlStatement.getTargetTable().getAliasClause().toString().equalsIgnoreCase("ar"));

TTable usingTable = mergeSqlStatement.getUsingTable();

assertTrue(usingTable.getTableType() == ETableSource.subquery);

assertTrue(usingTable.getAliasClause().toString().equalsIgnoreCase("ac"));

assertTrue(mergeSqlStatement.getCondition().toString().equalsIgnoreCase("(ar.activity =ac.activity)"));

assertTrue(mergeSqlStatement.getWhenClauses().size() == 2);

TMergeWhenClause whenClause0 = mergeSqlStatement.getWhenClauses().getElement(0);

TMergeWhenClause whenClause1 = mergeSqlStatement.getWhenClauses().getElement(1);

assertTrue(whenClause0.getType() == TMergeWhenClause.matched);

assertTrue(whenClause1.getType() == TMergeWhenClause.not_matched);

TMergeUpdateClause mergeUpdateClause = whenClause0.getUpdateClause();

assertTrue(mergeUpdateClause.getUpdateColumnList().getResultColumn(0).toString().equalsIgnoreCase("description =ac.description"));

TMergeInsertClause mergeInsertClause = whenClause1.getInsertClause();

assertTrue(mergeInsertClause.getColumnList().getObjectName(0).toString().equalsIgnoreCase("activity"));

assertTrue(mergeInsertClause.getColumnList().getObjectName(1).toString().equalsIgnoreCase("description"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(0).toString().equalsIgnoreCase("ac.activity"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(1).toString().equalsIgnoreCase("ac.description"));

}

public void testSQLServer(){

TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);

sqlparser.sqltext = "MERGE INTO Sales.SalesReason AS Target\n" +

"USING (VALUES ('Recommendation','Other'), ('Review', 'Marketing'), ('Internet', 'Promotion'))\n" +

" AS Source (NewName, NewReasonType)\n" +

"ON Target.Name = Source.NewName\n" +

"WHEN MATCHED THEN\n" +

"\tUPDATE SET ReasonType = Source.NewReasonType\n" +

"WHEN NOT MATCHED BY TARGET THEN\n" +

"\tINSERT (Name, ReasonType) VALUES (NewName, NewReasonType)\n" +

"OUTPUT $action INTO @SummaryOfChanges;";

assertTrue(sqlparser.parse() == 0);

TMergeSqlStatement mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

assertTrue(mergeSqlStatement.getTargetTable().toString().equalsIgnoreCase("Sales.SalesReason"));

assertTrue(mergeSqlStatement.getTargetTable().getAliasClause().toString().equalsIgnoreCase("Target"));

TTable usingTable = mergeSqlStatement.getUsingTable();

assertTrue(usingTable.getTableType() == ETableSource.rowList);

assertTrue(usingTable.getValueClause().getRows().size() == 3);

assertTrue(usingTable.getValueClause().getRows().get(0).getResultColumn(0).toString().equalsIgnoreCase("'Recommendation'"));

assertTrue(usingTable.getValueClause().getRows().get(0).getResultColumn(1).toString().equalsIgnoreCase("'Other'"));

assertTrue(usingTable.getValueClause().getRows().get(1).getResultColumn(0).toString().equalsIgnoreCase("'Review'"));

assertTrue(usingTable.getValueClause().getRows().get(1).getResultColumn(1).toString().equalsIgnoreCase("'Marketing'"));

assertTrue(usingTable.getValueClause().getRows().get(2).getResultColumn(0).toString().equalsIgnoreCase("'Internet'"));

assertTrue(usingTable.getValueClause().getRows().get(2).getResultColumn(1).toString().equalsIgnoreCase("'Promotion'"));

assertTrue(usingTable.getAliasClause().toString().equalsIgnoreCase("Source (NewName, NewReasonType)"));

assertTrue(usingTable.getAliasClause().getAliasName().toString().equalsIgnoreCase("Source"));

assertTrue(usingTable.getAliasClause().getColumns().getObjectName(0).toString().equalsIgnoreCase("NewName"));

assertTrue(usingTable.getAliasClause().getColumns().getObjectName(1).toString().equalsIgnoreCase("NewReasonType"));

assertTrue(mergeSqlStatement.getCondition().toString().equalsIgnoreCase("Target.Name = Source.NewName"));

assertTrue(mergeSqlStatement.getWhenClauses().size() == 2);

TMergeWhenClause whenClause0 = mergeSqlStatement.getWhenClauses().getElement(0);

TMergeWhenClause whenClause1 = mergeSqlStatement.getWhenClauses().getElement(1);

assertTrue(whenClause0.getType() == TMergeWhenClause.matched);

assertTrue(whenClause1.getType() == TMergeWhenClause.not_matched_by_target);

TMergeUpdateClause mergeUpdateClause = whenClause0.getUpdateClause();

assertTrue(mergeUpdateClause.getUpdateColumnList().getResultColumn(0).toString().equalsIgnoreCase("ReasonType = Source.NewReasonType"));

TMergeInsertClause mergeInsertClause = whenClause1.getInsertClause();

assertTrue(mergeInsertClause.getColumnList().getObjectName(0).toString().equalsIgnoreCase("Name"));

assertTrue(mergeInsertClause.getColumnList().getObjectName(1).toString().equalsIgnoreCase("ReasonType"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(0).toString().equalsIgnoreCase("NewName"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(1).toString().equalsIgnoreCase("NewReasonType"));

}

public void testOracle(){

TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);

sqlparser.sqltext = "MERGE INTO test1 a\n" +

"USING all_objects b\n" +

"ON (a.object_id = b.object_id)\n" +

"WHEN MATCHED THEN\n" +

"UPDATE SET a.status = b.status\n" +

"WHEN NOT MATCHED THEN\n" +

"INSERT (object_id, status)\n" +

"VALUES (b.object_id, b.status);";

assertTrue(sqlparser.parse() == 0);

TMergeSqlStatement mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

//System.out.println(mergeSqlStatement.tables.getTable(0).toString());

assertTrue(mergeSqlStatement.getTargetTable().toString().equalsIgnoreCase("test1"));

assertTrue(mergeSqlStatement.getTargetTable().getAliasClause().toString().equalsIgnoreCase("a"));

assertTrue(mergeSqlStatement.getUsingTable().toString().equalsIgnoreCase("all_objects"));

assertTrue(mergeSqlStatement.getUsingTable().getAliasClause().toString().equalsIgnoreCase("b"));

assertTrue(mergeSqlStatement.getCondition().toString().equalsIgnoreCase("a.object_id = b.object_id"));

assertTrue(mergeSqlStatement.getWhenClauses().size() == 2);

TMergeWhenClause whenClause0 = mergeSqlStatement.getWhenClauses().getElement(0);

TMergeWhenClause whenClause1 = mergeSqlStatement.getWhenClauses().getElement(1);

assertTrue(whenClause0.getType() == TMergeWhenClause.matched);

assertTrue(whenClause1.getType() == TMergeWhenClause.not_matched);

TMergeUpdateClause mergeUpdateClause = whenClause0.getUpdateClause();

assertTrue(mergeUpdateClause.getUpdateColumnList().getResultColumn(0).toString().equalsIgnoreCase("a.status = b.status"));

TMergeInsertClause mergeInsertClause = whenClause1.getInsertClause();

assertTrue(mergeInsertClause.getColumnList().getObjectName(0).toString().equalsIgnoreCase("object_id"));

assertTrue(mergeInsertClause.getColumnList().getObjectName(1).toString().equalsIgnoreCase("status"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(0).toString().equalsIgnoreCase("b.object_id"));

assertTrue(mergeInsertClause.getValuelist().getResultColumn(1).toString().equalsIgnoreCase("b.status"));

}

public void testOracle2(){

TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);

sqlparser.sqltext = "MERGE INTO bonuses D\n" +

" USING (SELECT employee_id, salary, department_id FROM employees\n" +

" WHERE department_id = 80) S\n" +

" ON (D.employee_id = S.employee_id)\n" +

" WHEN MATCHED THEN UPDATE SET D.bonus = D.bonus + S.salary*.01\n" +

" DELETE WHERE (S.salary > 8000)\n" +

" WHEN NOT MATCHED THEN INSERT (D.employee_id, D.bonus)\n" +

" VALUES (S.employee_id, S.salary*0.1)\n" +

" WHERE (S.salary <= 8000);";

assertTrue(sqlparser.parse() == 0);

TMergeSqlStatement mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

assertTrue(mergeSqlStatement.getTargetTable().toString().equalsIgnoreCase("bonuses"));

assertTrue(mergeSqlStatement.getTargetTable().getAliasClause().toString().equalsIgnoreCase("D"));

assertTrue(mergeSqlStatement.getWhenClauses().size() == 2);

TMergeWhenClause whenClause0 = mergeSqlStatement.getWhenClauses().getElement(0);

TMergeWhenClause whenClause1 = mergeSqlStatement.getWhenClauses().getElement(1);

assertTrue(whenClause0.getType() == TMergeWhenClause.matched);

assertTrue(whenClause1.getType() == TMergeWhenClause.not_matched);

TMergeUpdateClause mergeUpdateClause = whenClause0.getUpdateClause();

assertTrue(mergeUpdateClause.getUpdateColumnList().getResultColumn(0).toString().equalsIgnoreCase("D.bonus = D.bonus + S.salary*.01"));

assertTrue(mergeUpdateClause.getDeleteWhereClause().toString().equalsIgnoreCase("(S.salary > 8000)"));

//

// TMergeInsertClause mergeInsertClause = whenClause1.getInsertClause();

//

// assertTrue(mergeInsertClause.getColumnList().getObjectName(0).toString().equalsIgnoreCase("object_id"));

// assertTrue(mergeInsertClause.getColumnList().getObjectName(1).toString().equalsIgnoreCase("status"));

//

// assertTrue(mergeInsertClause.getValuelist().getResultColumn(0).toString().equalsIgnoreCase("b.object_id"));

// assertTrue(mergeInsertClause.getValuelist().getResultColumn(1).toString().equalsIgnoreCase("b.status"));

}

public void testMergeVisitor(){

TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);

sqlparser.sqltext = "MERGE INTO t1 USING t2 ON a1=c2 AND b1=b2 WHEN NOT MATCHED THEN INSERT (c2, b2, a2);";

assertTrue(sqlparser.parse() == 0);

TMergeSqlStatement mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

mergeSqlStatement.acceptChildren(new mergeVisitor());

sqlparser.sqltext = "MERGE INTO t1 USING t2 ON a1=b2 AND c1=10 AND b1<b2 WHEN MATCHED THEN UPDATE SET b1=b2";

assertTrue(sqlparser.parse() == 0);

mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

mergeSqlStatement.acceptChildren(new mergeVisitor());

sqlparser.sqltext = "MERGE INTO t1 USING t2 ON a1=c2 WHEN MATCHED THEN DELETE";

assertTrue(sqlparser.parse() == 0);

mergeSqlStatement = (TMergeSqlStatement)sqlparser.sqlstatements.get(0);

mergeSqlStatement.acceptChildren(new mergeVisitor());

}

}

class mergeVisitor extends TParseTreeVisitor {

public void preVisit(TMergeInsertClause node){

// System.out.println("Found:"+node.getClass().getName());

}

public void preVisit(TMergeUpdateClause node){

// System.out.println("Found:"+node.getClass().getName());

}

public void preVisit(TMergeDeleteClause node){

//System.out.println("Found:"+node.getClass().getName());

}

}