org.objectfabric.TMapSimple Maven / Gradle / Ivy
/**
* This file is part of ObjectFabric (http://objectfabric.org).
*
* ObjectFabric is licensed under the Apache License, Version 2.0, the terms
* of which may be found at http://www.apache.org/licenses/LICENSE-2.0.html.
*
* Copyright ObjectFabric Inc.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
package org.objectfabric;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.Assert;
import org.junit.Test;
public class TMapSimple extends TestsHelper {
private static final boolean LOG = false;
private static final int CYCLES = Debug.ENABLED ? 10 : 100;
@Test
public void run() throws Exception {
final Workspace workspace = Platform.newTestWorkspace();
Logger logger = null;
if (LOG)
logger = new Logger(workspace, workspace.callbackExecutor());
final TMap map = new TMap(workspace.resolve(""));
final CyclicBarrier barrier = new CyclicBarrier(2);
final CountDownLatch latch = new CountDownLatch(1);
final AtomicInteger attempts = new AtomicInteger();
Thread thread = new Thread() {
@Override
public void run() {
workspace.atomic(new Runnable() {
@Override
public void run() {
map.put(0, "A");
map.put(1, "B");
Assert.assertEquals("A", map.get(0));
Assert.assertEquals("B", map.get(1));
Assert.assertEquals(2, map.size());
try {
barrier.await();
} catch (Exception e) {
throw new RuntimeException(e);
}
try {
latch.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
attempts.incrementAndGet();
}
});
}
};
thread.start();
barrier.await();
Assert.assertEquals(null, map.get(0));
Assert.assertEquals(null, map.get(1));
Assert.assertEquals(0, map.size());
map.put(0, "X");
map.put(1, "Y");
Assert.assertEquals("X", map.get(0));
Assert.assertEquals("Y", map.get(1));
Assert.assertEquals(2, map.size());
latch.countDown();
barrier.await();
thread.join();
Assert.assertEquals("A", map.get(0));
Assert.assertEquals("B", map.get(1));
Assert.assertEquals(2, map.size());
Assert.assertEquals(2, attempts.get());
map.put(10, "test");
Assert.assertEquals(3, map.size());
try {
workspace.atomic(new Runnable() {
@Override
public void run() {
map.remove(0);
map.remove(1);
Assert.assertEquals(1, map.size());
map.remove(10);
Assert.assertEquals(0, map.size());
ExpectedExceptionThrower.expectException();
ExpectedExceptionThrower.throwRuntimeException("");
}
});
} catch (RuntimeException ex) {
}
//
Assert.assertEquals(3, map.size());
map.remove(0);
map.remove(1);
Assert.assertEquals("test", map.get(10));
Assert.assertEquals(1, map.size());
final CyclicBarrier barrier1 = new CyclicBarrier(2);
final CyclicBarrier barrier2 = new CyclicBarrier(2);
attempts.set(0);
thread = new Thread() {
@Override
public void run() {
workspace.atomic(new Runnable() {
@Override
public void run() {
map.put(0, "A");
try {
barrier1.await();
} catch (Exception e) {
throw new RuntimeException(e);
}
Assert.assertEquals("A", map.get(0));
attempts.incrementAndGet();
try {
barrier2.await();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
});
}
};
thread.start();
barrier1.await();
map.put(0, "X");
barrier2.await();
barrier1.await();
barrier2.await();
thread.join();
Assert.assertEquals("A", map.get(0));
Assert.assertEquals(2, attempts.get());
Assert.assertEquals(2, map.size());
if (LOG)
logger.close();
workspace.close();
}
@Test
public void sizePrivatePublic() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
map.put("A", 0);
map.put("B", 1);
map.put("C", 2);
workspace.atomic(new Runnable() {
@Override
public void run() {
map.remove("A");
map.remove("B");
map.remove("C");
Assert.assertEquals(0, map.size());
}
});
Assert.assertEquals(0, map.size());
workspace.atomic(new Runnable() {
@Override
public void run() {
map.put("A", 0);
map.remove("A");
Assert.assertEquals(0, map.size());
}
});
Assert.assertEquals(0, map.size());
workspace.close();
}
@Test
public void loop1() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
for (int i = 0; i < CYCLES; i++) {
workspace.atomic(new Runnable() {
@Override
public void run() {
addRemove1(map);
}
});
}
workspace.close();
}
@Test
public void loop2() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
for (int i = 0; i < CYCLES; i++) {
workspace.atomic(new Runnable() {
@Override
public void run() {
addRemove2(map);
}
});
}
workspace.close();
}
@Test
public void loop3() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
for (int i = 0; i < CYCLES; i++) {
map.clear();
workspace.atomic(new Runnable() {
@Override
public void run() {
addRemove3(map);
}
});
}
workspace.close();
}
@Test
public void loop3_bis() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
for (int i = 0; i < CYCLES; i++) {
workspace.atomic(new Runnable() {
@Override
public void run() {
for (Iterator it = map.entrySet().iterator(); it.hasNext();) {
it.next();
it.remove();
}
}
});
workspace.atomic(new Runnable() {
@Override
public void run() {
addRemove3(map);
}
});
}
workspace.close();
}
@Test
public void threads1() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
int threads = Runtime.getRuntime().availableProcessors();
new TMapExtended(workspace).run(threads, new Runnable() {
public void run() {
TMapSimple.addRemove1(map);
}
}, CYCLES / threads);
workspace.close();
}
@Test
public void threads2() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
int threads = Runtime.getRuntime().availableProcessors();
new TMapExtended(workspace).run(threads, new Runnable() {
public void run() {
TMapSimple.addRemove2(map);
}
}, CYCLES / threads);
workspace.close();
}
@Test
public void threads3() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
int threads = Runtime.getRuntime().availableProcessors();
new TMapExtended(workspace).run(threads, new Runnable() {
public void run() {
map.clear();
TMapSimple.addRemove3(map);
}
}, CYCLES / threads);
workspace.close();
}
@Test
public void threads3_bis() {
final Workspace workspace = Platform.newTestWorkspace();
final TMap map = new TMap(workspace.resolve(""));
int threads = Runtime.getRuntime().availableProcessors();
new TMapExtended(workspace).run(threads, new Runnable() {
public void run() {
for (Iterator it = map.entrySet().iterator(); it.hasNext();) {
it.next();
it.remove();
}
TMapSimple.addRemove3(map);
}
}, CYCLES / threads);
workspace.close();
}
private static void addRemove1(TMap map) {
final int MAP_SIZE = 80;
for (int i = 0; i < MAP_SIZE; i++)
map.put(i, i);
Assert.assertEquals(MAP_SIZE, map.size());
for (int i = 0; i < MAP_SIZE; i++)
Assert.assertTrue(i == map.get(i));
for (int i = MAP_SIZE - 1; i >= 0; i--) {
map.remove(i);
Assert.assertEquals(i, map.size());
}
}
private static void addRemove2(final TMap map) {
final int MAP_SIZE = 40;
for (int i = 0; i < MAP_SIZE; i++) {
final int i_ = i;
map.atomic(new Runnable() {
@Override
public void run() {
Assert.assertEquals(i_, map.size());
map.put(i_, i_);
Assert.assertEquals(i_ + 1, map.size());
}
});
Assert.assertEquals(i + 1, map.size());
}
for (int i = MAP_SIZE - 1; i >= 0; i--) {
final int i_ = i;
map.atomic(new Runnable() {
@Override
public void run() {
map.remove(i_);
Assert.assertEquals(i_, map.size());
}
});
Assert.assertEquals(i, map.size());
}
}
private static void addRemove3(final TMap map) {
final HashMap ref = new HashMap();
final AtomicInteger id = new AtomicInteger();
check(map, ref);
for (int i = 0; i < 10; i++) {
record("Transaction.start();");
map.workspace().atomic(new Runnable() {
@Override
public void run() {
for (int t = 0; t < 100; t++) {
int size = map.size();
boolean insert = size == 0 || Platform.get().randomInt(10) < 8;
int index;
if (insert) {
index = Platform.get().randomInt(size + 1);
record("map.add(" + index + ", " + id + ");");
record("ref.add(" + index + ", " + id + ");");
map.put(index, id.get());
ref.put(index, id.getAndIncrement());
} else {
index = Platform.get().randomInt(size);
record("map.remove(" + index + ");");
record("ref.remove(" + index + ");");
map.remove(index);
ref.remove(index);
}
check(map, ref);
}
record("Transaction.getCurrent().commit();");
}
});
check(map, ref);
}
}
/**
* @param message
*/
private static void record(String message) {
// System.out.println(message);
}
private static void check(TMap map, HashMap ref) {
Assert.assertEquals(ref.size(), map.size());
for (Map.Entry entry : map.entrySet())
Assert.assertTrue(ref.get(entry.getKey()).equals(entry.getValue()));
for (Map.Entry entry : ref.entrySet())
Assert.assertTrue(map.get(entry.getKey()).equals(entry.getValue()));
}
}
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