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/*
* ============LICENSE_START====================================================
* org.onap.music.mdbc
* =============================================================================
* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* =============================================================================
* 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.
* ============LICENSE_END======================================================
*/
package org.onap.music.mdbc.test;
import static org.junit.Assert.fail;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.apache.log4j.Logger;
import org.junit.Test;
public class TransactionTest extends TestCommon {
private static final String DB_CONNECTION1 = "avatica://" + "mem:db1";
private static final String DB_CONNECTION2 = "avatica://" + "mem:db2";
private static final String KEYSPACE = "CrossSite_Test";
private final static Logger logger = Logger.getLogger(CrossSiteTest.class);
//@Test
public void testWithAutocommitTrue() {
System.out.println("START TransactionTest.testWithAutocommitTrue");
Set<String> vals = new HashSet<String>(Arrays.asList("1", "2", "3"));
Connection db1 = null, db2 = null;
try {
db1 = getDBConnection(DB_CONNECTION1, KEYSPACE, "0");
db2 = getDBConnection(DB_CONNECTION2, KEYSPACE, "1");
createTable(new Connection[] { db1, db2 });
db1.setAutoCommit(true);
insert(db1, vals);
readcheck(db2, vals);
} catch (Exception e) {
fail("Unexpected exception: "+e);
} finally {
try {
if (db1 != null)
db1.close();
if (db2 != null)
db2.close();
} catch (SQLException e) {
// ignore
}
}
}
//@Test
public void testCommit() {
System.out.println("START TransactionTest.testCommit");
Set<String> vals = new HashSet<String>(Arrays.asList("1", "2", "3", "4"));
Set<String> val2 = new HashSet<String>(Arrays.asList("1", "2", "4"));
Connection db1 = null, db2 = null;
try {
db1 = getDBConnection(DB_CONNECTION1, KEYSPACE, "0");
db2 = getDBConnection(DB_CONNECTION2, KEYSPACE, "1");
createTable(new Connection[] { db1, db2 });
db1.setAutoCommit(false);
insert(db1, vals);
delete(db1, new HashSet<String>(Arrays.asList("3")));
readcheck(db1, val2);
readcheck(db2, new HashSet<String>());
db1.commit();
readcheck(db2, val2);
} catch (Exception e) {
fail("Unexpected exception: "+e);
} finally {
try {
if (db1 != null)
db1.close();
if (db2 != null)
db2.close();
} catch (SQLException e) {
// ignore
}
}
}
//@Test
public void testRollback() {
System.out.println("START TransactionTest.testRollback");
Set<String> vals = new HashSet<String>(Arrays.asList("1", "2", "3", "4"));
Connection db1 = null, db2 = null;
try {
db1 = getDBConnection(DB_CONNECTION1, KEYSPACE, "0");
db2 = getDBConnection(DB_CONNECTION2, KEYSPACE, "1");
createTable(new Connection[] { db1, db2 });
db1.setAutoCommit(false);
insert(db1, vals);
readcheck(db1, vals);
readcheck(db2, new HashSet<String>());
db1.rollback();
readcheck(db1, new HashSet<String>());
readcheck(db2, new HashSet<String>());
} catch (Exception e) {
fail("Unexpected exception: "+e);
} finally {
try {
if (db1 != null)
db1.close();
if (db2 != null)
db2.close();
} catch (SQLException e) {
// ignore
}
}
}
private void createTable(Connection[] c) {
try {
for (Connection db : c) {
logger.info(" start: "+db);
Statement s = db.createStatement();
s.execute("CREATE TABLE IF NOT EXISTS TRANSTEST(KEY VARCHAR(255), PRIMARY KEY (KEY))");
s.close();
logger.info(" Tables created");
}
} catch (Exception e) {
fail(e.toString());
}
}
private void insert(Connection db, Set<String> vals) {
// Put data in DB1
try {
Statement s = db.createStatement();
for (String v : vals)
s.execute("INSERT INTO TRANSTEST(KEY) VALUES('"+v+"')");
s.close();
} catch (Exception e) {
fail("1: " + e.toString());
}
}
private void delete(Connection db, Set<String> vals) {
// Put data in DB1
try {
Statement s = db.createStatement();
for (String v : vals)
s.execute("DELETE FROM TRANSTEST WHERE KEY = '"+v+"'");
s.close();
} catch (Exception e) {
fail("1: " + e.toString());
}
}
private void readcheck(Connection db, Set<String> vals) {
try {
Statement s = db.createStatement();
ResultSet rs = s.executeQuery("SELECT * FROM TRANSTEST");
Set<String> newset = new HashSet<String>();
while (rs.next()) {
String tmp = rs.getString(1);
newset.add(tmp);
}
if (vals.size() != newset.size()) {
fail("wrong number of elements, expected "+vals.size()+" got "+newset.size());
}
for (String t : vals) {
if (!newset.contains(t))
fail("missing element: "+t);
}
} catch (Exception e) {
logger.error(e);
e.printStackTrace();
fail("2: " + e.toString());
}
}
}
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