/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* 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
* 02110-1301 USA.
*/
package org.teiid.dqp.internal.datamgr;
import java.util.Arrays;
import java.util.List;
import junit.framework.Assert;
import org.teiid.language.Command;
import org.teiid.language.QueryExpression;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.DataNotAvailableException;
import org.teiid.translator.Execution;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.ExecutionFactory;
import org.teiid.translator.ResultSetExecution;
import org.teiid.translator.UpdateExecution;
public class FakeConnector extends ExecutionFactory {
private static final int RESULT_SIZE = 5;
private boolean executeBlocks;
private boolean nextBatchBlocks;
private boolean returnsFinalBatch;
private boolean driverThrowsExceptionOnCancel;
private long simulatedBatchRetrievalTime = 1000L;
private ClassLoader classloader;
private int connectionCount;
private int executionCount;
public int getConnectionCount() {
return connectionCount;
}
public int getExecutionCount() {
return executionCount;
}
@Override
public Execution createExecution(Command command, ExecutionContext executionContext, RuntimeMetadata metadata, Object connection) throws TranslatorException {
executionCount++;
return new FakeBlockingExecution(executionContext);
}
public Object getConnection() {
return new FakeConnection();
}
@Override
public Object getConnection(Object factory) throws TranslatorException {
return factory;
}
@Override
public void closeConnection(Object connection, Object factory) {
}
private class FakeConnection {
public FakeConnection() {
connectionCount++;
}
public boolean released = false;
public void close() {
Assert.assertFalse("The connection should not be released more than once", released); //$NON-NLS-1$
released = true;
}
}
private final class FakeBlockingExecution implements ResultSetExecution, UpdateExecution {
private boolean closed = false;
private boolean cancelled = false;
private int rowCount;
ExecutionContext ec;
public FakeBlockingExecution(ExecutionContext ec) {
this.ec = ec;
}
public void execute(QueryExpression query, int maxBatchSize) throws TranslatorException {
if (executeBlocks) {
waitForCancel();
}
if (classloader != null) {
Assert.assertSame(classloader, Thread.currentThread().getContextClassLoader());
}
}
public synchronized void cancel() throws TranslatorException {
cancelled = true;
this.notify();
}
public void close() {
Assert.assertFalse("The execution should not be closed more than once", closed); //$NON-NLS-1$
closed = true;
}
@Override
public void execute() throws TranslatorException {
ec.addWarning(new Exception("Some warning")); //$NON-NLS-1$
}
@Override
public List next() throws TranslatorException, DataNotAvailableException {
if (nextBatchBlocks) {
waitForCancel();
}
if (this.rowCount >= RESULT_SIZE || returnsFinalBatch) {
return null;
}
this.rowCount++;
return Arrays.asList(this.rowCount - 1);
}
private synchronized void waitForCancel() throws TranslatorException {
try {
this.wait(simulatedBatchRetrievalTime);
if (cancelled && driverThrowsExceptionOnCancel) {
throw new TranslatorException("Request cancelled"); //$NON-NLS-1$
}
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
@Override
public int[] getUpdateCounts() throws DataNotAvailableException,
TranslatorException {
return new int[] {1};
}
}
public boolean isExecuteBlocks() {
return executeBlocks;
}
public void setExecuteBlocks(boolean executeBlocks) {
this.executeBlocks = executeBlocks;
}
public boolean isNextBatchBlocks() {
return nextBatchBlocks;
}
public void setNextBatchBlocks(boolean nextBatchBlocks) {
this.nextBatchBlocks = nextBatchBlocks;
}
public boolean isReturnsFinalBatch() {
return returnsFinalBatch;
}
public void setReturnsFinalBatch(boolean returnsFinalBatch) {
this.returnsFinalBatch = returnsFinalBatch;
}
public boolean isDriverThrowsExceptionOnCancel() {
return driverThrowsExceptionOnCancel;
}
public void setDriverThrowsExceptionOnCancel(
boolean driverThrowsExceptionOnCancel) {
this.driverThrowsExceptionOnCancel = driverThrowsExceptionOnCancel;
}
public long getSimulatedBatchRetrievalTime() {
return simulatedBatchRetrievalTime;
}
public void setSimulatedBatchRetrievalTime(long simulatedBatchRetrievalTime) {
this.simulatedBatchRetrievalTime = simulatedBatchRetrievalTime;
}
public void setClassloader(ClassLoader classloader) {
this.classloader = classloader;
}
}