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* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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*/
package org.teiid.dqp.internal.process;
import static org.junit.Assert.*;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Arrays;
import java.util.List;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.mockito.stubbing.DeprecatedOngoingStubbing;
import org.teiid.client.util.ResultsFuture;
import org.teiid.core.util.UnitTestUtil;
import org.teiid.dqp.internal.datamgr.ConnectorManager;
import org.teiid.dqp.internal.datamgr.ConnectorManagerRepository;
import org.teiid.jdbc.FakeServer;
import org.teiid.jdbc.RequestOptions;
import org.teiid.jdbc.StatementCallback;
import org.teiid.jdbc.TeiidStatement;
import org.teiid.language.Command;
import org.teiid.language.QueryExpression;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.query.util.CommandContext;
import org.teiid.runtime.EmbeddedConfiguration;
import org.teiid.translator.DataNotAvailableException;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.ExecutionFactory;
import org.teiid.translator.ResultSetExecution;
import org.teiid.translator.ReusableExecution;
import org.teiid.translator.TranslatorException;
@SuppressWarnings("nls")
public class TestExecutionReuse {
private static final int EXEC_COUNT = 3;
private static FakeServer server;
private static class FakeReusableExecution implements ResultSetExecution, ReusableExecution<Object> {
@Override
public List<?> next() throws TranslatorException,
DataNotAvailableException {
return null;
}
@Override
public void cancel() throws TranslatorException {
}
@Override
public void close() {
}
@Override
public void execute() throws TranslatorException {
}
@Override
public void dispose() {
}
@Override
public void reset(Command c, ExecutionContext executionContext,
Object connection) {
}
}
private static FakeReusableExecution execution;
private static boolean isDisposed;
@Before public void setup() throws DataNotAvailableException, TranslatorException {
execution = Mockito.mock(FakeReusableExecution.class);
ec = null;
DeprecatedOngoingStubbing stubbing = Mockito.stub(execution.next()).toReturn((List) Arrays.asList((Object)null)).toReturn(null);
for (int i = 1; i < EXEC_COUNT; i++) {
stubbing.toReturn(Arrays.asList((Object)null)).toReturn(null);
}
Mockito.doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocation) throws Throwable {
synchronized (TestExecutionReuse.class) {
isDisposed = true;
TestExecutionReuse.class.notify();
}
return null;
}
}).when(execution).dispose();
}
private static ExecutionContext ec;
@BeforeClass public static void oneTimeSetUp() throws Exception {
EmbeddedConfiguration config = new EmbeddedConfiguration();
config.setUserRequestSourceConcurrency(1);
server = new FakeServer(false);
server.setConnectorManagerRepository(new ConnectorManagerRepository() {
private ConnectorManager cm = new ConnectorManager("x", "y") {
private ExecutionFactory<Object, Object> ef = new ExecutionFactory<Object, Object>() {
@Override
public ResultSetExecution createResultSetExecution(
QueryExpression command,
ExecutionContext executionContext,
RuntimeMetadata metadata, Object connection)
throws TranslatorException {
ec = executionContext;
return execution;
};
public boolean isSourceRequired() {
return false;
};
};
@Override
public ExecutionFactory<Object, Object> getExecutionFactory() {
return ef;
}
@Override
public Object getConnectionFactory()
throws TranslatorException {
return null;
}
};
@Override
public ConnectorManager getConnectorManager(String connectorName) {
return cm;
}
});
server.start(config, false);
server.deployVDB("PartsSupplier", UnitTestUtil.getTestDataPath() + "/PartsSupplier.vdb");
}
@AfterClass public static void oneTimeTearDown() throws Exception {
server.stop();
}
@Test public void testReusableAsynchContinuous() throws Exception {
Connection c = server.createConnection("jdbc:teiid:partssupplier");
Statement s = c.createStatement();
TeiidStatement ts = s.unwrap(TeiidStatement.class);
final ResultsFuture<Integer> result = new ResultsFuture<Integer>();
ts.submitExecute("select part_id from parts order by part_id", new StatementCallback() {
int rowCount;
@Override
public void onRow(Statement stmt, ResultSet rs) throws SQLException {
rowCount++;
if (rowCount == EXEC_COUNT) {
stmt.close();
}
}
@Override
public void onException(Statement stmt, Exception e) {
result.getResultsReceiver().exceptionOccurred(e);
}
@Override
public void onComplete(Statement stmt) {
result.getResultsReceiver().receiveResults(rowCount);
}
}, new RequestOptions().continuous(true));
synchronized (TestExecutionReuse.class) {
while (!isDisposed) {
TestExecutionReuse.class.wait();
}
}
assertEquals(EXEC_COUNT, result.get().intValue());
assertTrue(ec.getCommandContext().isContinuous());
Mockito.verify(execution, Mockito.times(1)).dispose();
Mockito.verify(execution, Mockito.times(EXEC_COUNT)).execute();
Mockito.verify(execution, Mockito.times(EXEC_COUNT)).close();
Mockito.verify(execution, Mockito.times(EXEC_COUNT - 1)).reset((Command)Mockito.anyObject(), (ExecutionContext)Mockito.anyObject(), Mockito.anyObject());
}
@Test public void testCommandContext() {
CommandContext cc = new CommandContext();
FakeReusableExecution fe = new FakeReusableExecution();
cc.putReusableExecution("a", fe);
cc.putReusableExecution("a", new FakeReusableExecution());
ReusableExecution<?> re = cc.getReusableExecution("a");
ReusableExecution<?> re1 = cc.getReusableExecution("a");
assertSame(fe, re);
assertNotSame(fe, re1);
assertNull(cc.getReusableExecution("a"));
}
}