/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.server.test.mt.util;
import com.foundationdb.qp.operator.API;
import com.foundationdb.qp.operator.Cursor;
import com.foundationdb.qp.operator.Operator;
import com.foundationdb.qp.operator.QueryBindings;
import com.foundationdb.qp.operator.QueryContext;
import com.foundationdb.qp.operator.SimpleQueryContext;
import com.foundationdb.qp.operator.StoreAdapter;
import com.foundationdb.qp.row.Row;
import com.foundationdb.qp.rowtype.Schema;
import com.foundationdb.qp.util.SchemaCache;
import com.foundationdb.server.service.session.Session;
import com.foundationdb.server.test.mt.util.ThreadMonitor.Stage;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
public class MonitoredOperatorThread extends MonitoredThread
{
private final OperatorCreator operatorCreator;
private final boolean retryOnRollback;
public MonitoredOperatorThread(String name,
ServiceHolder services,
OperatorCreator operatorCreator,
ThreadMonitor monitor,
Set<Stage> stageMarks,
boolean retryOnRollback) {
super(name, services, monitor, stageMarks);
this.operatorCreator = operatorCreator;
this.retryOnRollback = retryOnRollback;
}
//
// MonitoredThread
//
@Override
protected boolean doRetryOnRollback() {
return retryOnRollback;
}
@Override
protected boolean doRetryOnTableVersionChange() {
return false;
}
@Override
protected void runInternal(Session session) {
to(Stage.PRE_BEGIN);
boolean success = false;
getServiceHolder().getTransactionService().beginTransaction(session);
// To ensure our desired ordering
getServiceHolder().getTransactionService().getTransactionStartTimestamp(session);
to(Stage.POST_BEGIN);
try {
while(!success) {
to(Stage.PRE_SCAN);
Schema schema = SchemaCache.globalSchema(getServiceHolder().getSchemaManager().getAis(session));
Operator plan = operatorCreator.create(schema);
StoreAdapter adapter = getServiceHolder().getStore().createAdapter(session, schema);
QueryContext context = new SimpleQueryContext(adapter);
QueryBindings bindings = context.createBindings();
Cursor cursor = API.cursor(plan, context, bindings);
cursor.openTopLevel();
try {
Row row;
while((row = cursor.next()) != null) {
getScannedRows().add(row);
switch(getScannedRows().size()) {
case 1: to(Stage.SCAN_FIRST_ROW); break;
case 2: to(Stage.SCAN_SECOND_ROW); break;
}
}
} finally {
cursor.closeTopLevel();
}
to(Stage.POST_SCAN);
to(Stage.PRE_COMMIT);
getServiceHolder().getTransactionService().commitTransaction(session);
success = true;
to(Stage.POST_COMMIT);
}
} finally {
if(!success) {
to(Stage.PRE_ROLLBACK);
getServiceHolder().getTransactionService().rollbackTransactionIfOpen(session);
to(Stage.POST_ROLLBACK);
}
}
}
}