// OAK-1784
@Test
public void failOnConflict() throws Exception {
final Map<Thread, Semaphore> locks = Maps.newIdentityHashMap();
NodeStore store = new MemoryNodeStore() {
@Nonnull
@Override
public NodeState merge(@Nonnull NodeBuilder builder,
@Nonnull CommitHook commitHook, @Nullable CommitInfo info)
throws CommitFailedException {
Semaphore s = locks.get(Thread.currentThread());
if (s != null) {
s.acquireUninterruptibly();
}
return super.merge(builder, commitHook, info);
}
};
IndexEditorProvider provider = new PropertyIndexEditorProvider();
NodeBuilder builder = store.getRoot().builder();
createIndexDefinition(builder.child(INDEX_DEFINITIONS_NAME), "foo",
false, ImmutableSet.of("foo"), null, TYPE,
Collections.singletonMap(ASYNC_PROPERTY_NAME, "async"));
builder.child("test").setProperty("foo", "a");
store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
final AsyncIndexUpdate async = new AsyncIndexUpdate("async", store,
provider);
async.run();
builder = store.getRoot().builder();
builder.child("test").setProperty("foo", "b");
store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
Thread t = new Thread(new Runnable() {
@Override
public void run() {
async.run();
}
});
Semaphore s = new Semaphore(0);
locks.put(t, s);
t.start();
// make some unrelated changes to trigger indexing
builder = store.getRoot().builder();
builder.setChildNode("dummy").setProperty("foo", "bar");
store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
while (!s.hasQueuedThreads()) {
Thread.yield();
}
// introduce a conflict
builder = store.getRoot().builder();
builder.getChildNode(INDEX_DEFINITIONS_NAME).getChildNode("foo")
.getChildNode(":index").child("a").remove();
store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
s.release(100);
t.join();
builder = store.getRoot().builder();
assertNoConflictMarker(builder);
}