/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Oct 8, 2010
*/
package com.bigdata.relation.accesspath;
import junit.framework.TestCase2;
import com.bigdata.relation.accesspath.BlockingBuffer;
import com.bigdata.relation.accesspath.BufferClosedException;
import com.bigdata.relation.accesspath.IBlockingBuffer;
/**
* Test suite for {@link MultiplexBlockingBuffer}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestMultiplexBlockingBuffer extends TestCase2 {
/**
*
*/
public TestMultiplexBlockingBuffer() {
}
/**
* @param name
*/
public TestMultiplexBlockingBuffer(String name) {
super(name);
}
public void test_multiplex() {
final IBlockingBuffer<String> buffer = new BlockingBuffer<String>();
final MultiplexBlockingBuffer<String> multiplex = new MultiplexBlockingBuffer<String>(buffer);
// buffer is open and empty.
assertTrue(buffer.isOpen());
assertTrue(buffer.isEmpty());
// multiplex is open.
assertTrue(multiplex.isOpen());
final IBlockingBuffer<String> skin1 = multiplex.newInstance();
final IBlockingBuffer<String> skin2 = multiplex.newInstance();
// buffer is open and empty.
assertTrue(buffer.isOpen());
assertTrue(buffer.isEmpty());
// multiplex is open.
assertTrue(multiplex.isOpen());
skin1.add("a");
skin1.flush();
skin1.close();
try {
skin1.add("a2");
fail("Expecting: " + BufferClosedException.class);
} catch (BufferClosedException ex) {
if (log.isInfoEnabled())
log.info("Ignoring expected exception: " + ex);
}
// buffer is open but no longer empty.
assertTrue(buffer.isOpen());
assertFalse(buffer.isEmpty());
// multiplex is open.
assertTrue(multiplex.isOpen());
skin2.add("b");
skin2.add("c");
skin2.flush();
// buffer is open but not empty.
assertTrue(buffer.isOpen());
assertFalse(buffer.isEmpty());
// multiplex is open.
assertTrue(multiplex.isOpen());
// close the last open skin.
skin2.close();
// buffer is closed but not empty.
assertFalse(buffer.isOpen());
assertFalse(buffer.isEmpty());
// multiplex closed.
assertFalse(multiplex.isOpen());
// verify the data.
assertSameIterator(new String[]{"a","b","c"}, buffer.iterator());
}
}