@Test
public void testSyncCreate() {
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String testName = className + "_" + methodName;
System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));
String path = String.format("/%s/%s", testName, "msg_0");
ZNRecord record = new ZNRecord("msg_0");
ZkBaseDataAccessor<ZNRecord> accessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
boolean success = accessor.create(path, record, AccessOption.PERSISTENT);
Assert.assertTrue(success);
ZNRecord getRecord = _gZkClient.readData(path);
Assert.assertNotNull(getRecord);
Assert.assertEquals(getRecord.getId(), "msg_0");
record.setSimpleField("key0", "value0");
success = accessor.create(path, record, AccessOption.PERSISTENT);
Assert.assertFalse(success, "Should fail since node already exists");
getRecord = _gZkClient.readData(path);
Assert.assertNotNull(getRecord);
Assert.assertEquals(getRecord.getSimpleFields().size(), 0);
System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
}
@Test
public void testSyncGetStat() {
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String testName = className + "_" + methodName;
System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));
String path = String.format("/%s/%s", testName, "msg_0");
ZNRecord record = new ZNRecord("msg_0");
ZkBaseDataAccessor<ZNRecord> accessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
Stat stat = accessor.getStat(path, 0);
Assert.assertNull(stat);
boolean success = accessor.create(path, record, AccessOption.EPHEMERAL);
Assert.assertTrue(success);
stat = accessor.getStat(path, 0);
Assert.assertNotNull(stat);
Assert.assertEquals(stat.getVersion(), 0);
Assert.assertNotSame(stat.getEphemeralOwner(), 0);
System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
}
@Test
public void testSyncGet() {
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String testName = className + "_" + methodName;
System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));
String path = String.format("/%s/%s", testName, "msg_0");
ZNRecord record = new ZNRecord("msg_0");
ZkBaseDataAccessor<ZNRecord> accessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
Stat stat = new Stat();
ZNRecord getRecord = accessor.get(path, stat, 0);
Assert.assertNull(getRecord);
try {
accessor.get(path, stat, AccessOption.THROW_EXCEPTION_IFNOTEXIST);
Assert.fail("Should throw exception if not exist");
} catch (Exception e) {
// OK
}
boolean success = accessor.create(path, record, AccessOption.PERSISTENT);
Assert.assertTrue(success);
getRecord = accessor.get(path, stat, 0);
Assert.assertNotNull(getRecord);
Assert.assertEquals(getRecord.getId(), "msg_0");
Assert.assertEquals(stat.getVersion(), 0);
record.setSimpleField("key0", "value0");
success = accessor.set(path, record, AccessOption.PERSISTENT);
Assert.assertTrue(success);
getRecord = accessor.get(path, stat, 0);
Assert.assertNotNull(getRecord);
Assert.assertEquals(record.getSimpleFields().size(), 1);
Assert.assertNotNull(getRecord.getSimpleField("key0"));
Assert.assertEquals(getRecord.getSimpleField("key0"), "value0");
Assert.assertEquals(stat.getVersion(), 1);
ZNRecord newRecord = new ZNRecord("msg_0");
newRecord.setSimpleField("key1", "value1");
success = accessor.update(path, new ZNRecordUpdater(newRecord), AccessOption.PERSISTENT);
Assert.assertTrue(success);
getRecord = accessor.get(path, stat, 0);
Assert.assertNotNull(getRecord);
Assert.assertEquals(getRecord.getSimpleFields().size(), 2);
Assert.assertNotNull(getRecord.getSimpleField("key0"));
Assert.assertEquals(getRecord.getSimpleField("key0"), "value0");
Assert.assertNotNull(getRecord.getSimpleField("key1"));
Assert.assertEquals(getRecord.getSimpleField("key1"), "value1");
Assert.assertEquals(stat.getVersion(), 2);
System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
}
@Test
public void testSyncExist() {
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String testName = className + "_" + methodName;
System.out.println("START " + testName + " at " + new Date(System.currentTimeMillis()));
String path = String.format("/%s/%s", testName, "msg_0");
ZNRecord record = new ZNRecord("msg_0");
ZkBaseDataAccessor<ZNRecord> accessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
boolean success = accessor.exists(path, 0);
Assert.assertFalse(success);
success = accessor.create(path, record, AccessOption.EPHEMERAL);
Assert.assertTrue(success);
success = accessor.exists(path, 0);
Assert.assertTrue(success);
System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
}
