private static void solve(Grid grid, List<Grid> solutions) {
// Return if there is already more than two solution
if (solutions.size() >= 2) {
return;
}
// Find first empty cell
int loc = grid.findEmptyCell();
// If no empty cells are found,a solution is found
if (loc < 0) {
solutions.add(grid.clone());
return;
}
// Try each of the 9 digits in this empty cell
for (int n = 1; n < 10; n++) {
if (grid.set(loc, n)) {
// With this cell set,work on the next cell
solve(grid, solutions);
// Clear the cell so that it can be filled with another digit
grid.clear(loc);
}
}
}
/** @throws Exception If failed. */
@SuppressWarnings({"ObjectEquality"})
public void testDifferentTasks() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Execute different tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
// In ISOLATED_CLASSLOADER mode tasks should have the class
// loaders because they have the same CL locally and thus the same
// resources.
// So 1 resource locally and 1 remotely
assert task1Rsrc1 == task2Rsrc1;
assert task1Rsrc2 == task2Rsrc2;
assert task1Rsrc3 == task2Rsrc3;
assert task1Rsrc4 == task2Rsrc4;
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
}
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
}
/** @throws Exception If failed. */
@SuppressWarnings("unchecked")
public void testCancel() throws Exception {
Grid grid = G.grid(getTestGridName());
grid.compute()
.localDeployTask(GridCancelTestTask.class, U.detectClassLoader(GridCancelTestTask.class));
GridComputeTaskFuture<?> fut = grid.compute().execute(GridCancelTestTask.class.getName(), null);
// Wait until jobs begin execution.
boolean await = startSignal.await(WAIT_TIME, TimeUnit.MILLISECONDS);
assert await : "Jobs did not start.";
info("Test task result: " + fut);
assert fut != null;
// Only first job should successfully complete.
Object res = fut.get();
assert (Integer) res == 1;
// Wait for all jobs to finish.
await = stopSignal.await(WAIT_TIME, TimeUnit.MILLISECONDS);
assert await : "Jobs did not stop.";
// One is definitely processed. But there might be some more processed or cancelled or processed
// and cancelled.
// Thus total number should be at least SPLIT_COUNT and at most (SPLIT_COUNT - 1) *2 +1
assert (cancelCnt + processedCnt) >= SPLIT_COUNT
&& (cancelCnt + processedCnt) <= (SPLIT_COUNT - 1) * 2 + 1
: "Invalid cancel count value: " + cancelCnt;
}
/** @throws Exception If failed. */
@SuppressWarnings({"ObjectEquality"})
public void testUndeployedTask() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Execute tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
grid1.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// 1 local and 1 remote resource instances
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
grid1.compute().undeployTask(SharedResourceTask2.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// We undeployed last task for this class loader and resources.
// All resources should be undeployed.
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
// Execute the same tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
// 2 new resources.
checkUsageCount(createClss, UserResource1.class, 8);
checkUsageCount(deployClss, UserResource1.class, 8);
checkUsageCount(createClss, UserResource2.class, 8);
checkUsageCount(deployClss, UserResource2.class, 8);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
}
checkUsageCount(undeployClss, UserResource1.class, 8);
checkUsageCount(undeployClss, UserResource2.class, 8);
}
/**
* Starts the local node and checks for presence of log file. Also checks that this is really a
* log of a started node.
*
* @param id Test-local node ID.
* @throws Exception If error occurred.
*/
private void checkOneNode(int id) throws Exception {
try (Grid grid = G.start(getConfiguration("grid" + id))) {
String id8 = U.id8(grid.localNode().id());
String logPath = "work/log/gridgain-" + id8 + ".log";
File logFile = U.resolveGridGainPath(logPath);
assertNotNull("Failed to resolve path: " + logPath, logFile);
assertTrue("Log file does not exist: " + logFile, logFile.exists());
String logContent = U.readFileToString(logFile.getAbsolutePath(), "UTF-8");
assertTrue(
"Log file does not contain it's node ID: " + logFile,
logContent.contains(">>> Local node [ID=" + id8.toUpperCase()));
}
}
/** @throws Exception If failed. */
public void testSameTaskFromTwoNodesLeft() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
Grid grid3 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid3 = startGrid(3, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid2.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 6);
checkUsageCount(deployClss, UserResource1.class, 6);
checkUsageCount(createClss, UserResource2.class, 6);
checkUsageCount(deployClss, UserResource2.class, 6);
checkUsageCount(undeployClss, UserResource1.class, 0);
checkUsageCount(undeployClss, UserResource2.class, 0);
GridTestUtils.close(grid1, log());
// Wait until other nodes get notified
// this grid1 left.
Thread.sleep(1000);
// Undeployment happened only on Grid1.
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
GridTestUtils.close(grid2, log());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(1000);
// Grid1 and Grid2
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
GridTestUtils.close(grid3, log());
}
}
/** @throws Exception If failed. */
@SuppressWarnings("unchecked")
public void testRedeployedTask() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
try {
// Execute same task with different class loaders. Second execution should redeploy first one.
grid.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 2);
checkUsageCount(createClss, UserResource2.class, 2);
checkUsageCount(deployClss, UserResource1.class, 2);
checkUsageCount(deployClss, UserResource2.class, 2);
// Change class loader of the task. So it's just implicit redeploy.
ClassLoader tstClsLdr =
new GridTestClassLoader(
null,
getClass().getClassLoader(),
SharedResourceTask1.class.getName(),
GridResourceSharedUndeploySelfTest.SharedResourceTask1.GridSharedJob1.class.getName(),
GridResourceSharedUndeploySelfTest.class.getName());
Class<? extends GridComputeTask<Object, Object>> taskCls =
(Class<? extends GridComputeTask<Object, Object>>)
tstClsLdr.loadClass(SharedResourceTask1.class.getName());
grid.compute().execute(taskCls, null).get();
// Old resources should be undeployed at this point.
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
// We should detect redeployment and create new resources.
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid, log());
}
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
}
/** @throws Exception If failed. */
public void testDifferentTaskNameLocally() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Versions are different - should not share
// 2 resource created locally
try {
grid.compute().execute(SharedResourceTask1Version1.class, null).get();
try {
grid.compute().execute(SharedResourceTask1Version2.class, null).get();
assert false : "SharedResourceTask4 should not be allowed to deploy.";
} catch (GridException e) {
info("Received expected exception: " + e);
}
} finally {
GridTestUtils.close(grid, log());
}
}
/** @throws Exception If failed. */
public void testSameTaskLocally() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
try {
// Execute the same task twice.
// 1 resource created locally
grid.compute().execute(SharedResourceTask1.class, null).get();
grid.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 2);
checkUsageCount(createClss, UserResource2.class, 2);
checkUsageCount(deployClss, UserResource1.class, 2);
checkUsageCount(deployClss, UserResource2.class, 2);
} finally {
GridTestUtils.close(grid, log());
}
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(save)) new GridSaver(grid, fileName());
if (e.getSource().equals(load)) {
GridLoader gl = new GridLoader(grid, fileName());
try {
grid.setMap(gl.read());
} catch (IOException ioex) {
System.out.println("File load Failed ioex");
}
}
parent.getParent().refresh();
}
/**
* Tests that failover don't pick local node if it has been excluded from topology.
*
* @throws Exception If failed.
*/
@SuppressWarnings({"WaitNotInLoop", "UnconditionalWait", "unchecked"})
public void testFailoverTopology() throws Exception {
try {
Grid grid1 = startGrid(1);
Grid grid2 = startGrid(2);
assert grid1 != null;
assert grid2 != null;
grid1.compute().localDeployTask(JobTask.class, JobTask.class.getClassLoader());
try {
GridComputeTaskFuture<String> fut;
synchronized (mux) {
fut = grid1.compute().execute(JobTask.class, null);
mux.wait();
}
stopAndCancelGrid(2);
String res = fut.get();
info("Task result: " + res);
} catch (GridException e) {
info("Got unexpected grid exception: " + e);
}
info("Failed over: " + failCnt.get());
assert failCnt.get() == 1
: "Invalid fail over counter [expected=1, actual=" + failCnt.get() + ']';
} finally {
stopGrid(1);
// Stopping stopped instance just in case.
stopGrid(2);
}
}
/**
* Runs JDBC example.
*
* @param args Command line arguments.
* @throws Exception In case of error.
*/
public static void main(String[] args) throws Exception {
Grid grid = G.start("examples/config/spring-cache.xml");
Connection conn = null;
try {
// Populate cache with data.
populate(grid.cache(CACHE_NAME));
// Register JDBC driver.
Class.forName("org.gridgain.jdbc.GridJdbcDriver");
// Open JDBC connection.
conn =
DriverManager.getConnection("jdbc:gridgain://localhost/" + CACHE_NAME, configuration());
X.println(">>>");
// Query all persons.
queryAllPersons(conn);
X.println(">>>");
// Query person older than 30 years.
queryPersons(conn, 30);
X.println(">>>");
// Query persons working in GridGain.
queryPersonsInOrganization(conn, "GridGain");
X.println(">>>");
} finally {
// Close JDBC connection.
if (conn != null) conn.close();
G.stop(true);
}
}
/**
* Starts Grid instance. Note that if grid is already started, then it will be looked up and
* returned from this method.
*
* @return Started grid.
*/
private Grid startGrid() {
Properties props = System.getProperties();
gridName = props.getProperty(GRIDGAIN_NAME.name());
if (!props.containsKey(GRIDGAIN_NAME.name()) || G.state(gridName) != GridFactoryState.STARTED) {
selfStarted = true;
// Set class loader for the spring.
ClassLoader curCl = Thread.currentThread().getContextClassLoader();
// Add no-op logger to remove no-appender warning.
Appender app = new NullAppender();
Logger.getRootLogger().addAppender(app);
try {
Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
Grid grid = G.start(cfgPath);
gridName = grid.name();
System.setProperty(GRIDGAIN_NAME.name(), grid.name());
return grid;
} catch (GridException e) {
throw new GridRuntimeException("Failed to start grid: " + cfgPath, e);
} finally {
Logger.getRootLogger().removeAppender(app);
Thread.currentThread().setContextClassLoader(curCl);
}
}
return G.grid(gridName);
}
public static void main(String[] args) throws Exception {
// Open the file containing the givens
File file = new File(args[0]);
FileReader rd = new FileReader(args[0]);
// Process each grid in the file
while (true) {
Grid grid = Grid.create(rd);
if (grid == null) {
// No more grids
break;
}
// Find a solution
List<Grid> solutions = solve(grid);
printSolutions(grid, solutions);
}
}
/** @throws Exception If failed. */
public void testSameTaskFromTwoNodesUndeploy() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
Grid grid3 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid3 = startGrid(3, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid2.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 6);
checkUsageCount(deployClss, UserResource1.class, 6);
checkUsageCount(createClss, UserResource2.class, 6);
checkUsageCount(deployClss, UserResource2.class, 6);
checkUsageCount(undeployClss, UserResource1.class, 0);
checkUsageCount(undeployClss, UserResource2.class, 0);
grid1.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
checkUsageCount(undeployClss, UserResource1.class, 6);
checkUsageCount(undeployClss, UserResource2.class, 6);
grid2.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// All Tasks from originating nodes were undeployed. All resources should be cleaned up.
checkUsageCount(undeployClss, UserResource1.class, 6);
checkUsageCount(undeployClss, UserResource2.class, 6);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
GridTestUtils.close(grid3, log());
}
}
/**
* Runs all tests belonging to this test suite on the grid.
*
* @param result Test result collector.
*/
@Override
public void run(TestResult result) {
if (isDisabled) {
copy.run(result);
} else {
GridTestRouter router = createRouter();
Grid grid = startGrid();
try {
List<GridTaskFuture<?>> futs = new ArrayList<GridTaskFuture<?>>(testCount());
List<GridJunit3SerializableTest> tests =
new ArrayList<GridJunit3SerializableTest>(testCount());
for (int i = 0; i < testCount(); i++) {
Test junit = testAt(i);
GridJunit3SerializableTest test;
if (junit instanceof TestSuite) {
test = new GridJunit3SerializableTestSuite((TestSuite) junit);
} else {
assert junit instanceof TestCase
: "Test must be either TestSuite or TestCase: " + junit;
test = new GridJunit3SerializableTestCase((TestCase) junit);
}
tests.add(test);
if (clsLdr == null) {
clsLdr = U.detectClassLoader(junit.getClass());
}
futs.add(
grid.execute(
new GridJunit3Task(junit.getClass(), clsLdr),
new GridJunit3Argument(router, test, locTests.contains(test.getName())),
timeout));
}
for (int i = 0; i < testCount(); i++) {
GridTaskFuture<?> fut = futs.get(i);
GridJunit3SerializableTest origTest = tests.get(i);
try {
GridJunit3SerializableTest resTest = (GridJunit3SerializableTest) fut.get();
origTest.setResult(resTest);
origTest.getTest().run(result);
} catch (GridException e) {
handleFail(result, origTest, e);
}
}
} finally {
stopGrid();
}
}
}