private void enode_test_1() throws IOException, InterruptedException, KeeperException {
checkRoot();
String parentName = testDirOnZK;
String nodeName = parentName + "/enode_abc";
ZooKeeper zk = new ZooKeeper(hostPort, 10000, this);
Stat stat = zk.exists(parentName, false);
if (stat == null) {
try {
zk.create(parentName, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
} catch (KeeperException ke) {
fail("Creating node " + parentName + ke.getMessage());
}
}
try {
zk.create(nodeName, null, Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NodeExists;
if (!valid) {
fail("Unexpected exception code for createin: " + ke.getMessage());
}
}
stat = zk.exists(nodeName, false);
if (stat == null) {
fail("node " + nodeName + " should exist");
}
System.out.println("Closing client with sessionid: 0x" + Long.toHexString(zk.getSessionId()));
zk.close();
zk = new ZooKeeper(hostPort, 10000, this);
for (int i = 0; i < 10; i++) {
System.out.println("i = " + i);
stat = zk.exists(nodeName, false);
if (stat != null) {
System.out.println("node " + nodeName + " should not exist after reconnection close");
} else {
System.out.println("node " + nodeName + " is gone after reconnection close!");
break;
}
Thread.sleep(5000);
}
deleteZKDir(zk, nodeName);
zk.close();
}
private void delete_create_get_set_test_1()
throws IOException, InterruptedException, KeeperException {
checkRoot();
ZooKeeper zk = new ZooKeeper(hostPort, 10000, this);
String parentName = testDirOnZK;
String nodeName = parentName + "/benwashere";
try {
zk.delete(nodeName, -1);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NoNode || code == KeeperException.Code.NotEmpty;
if (!valid) {
fail("Unexpected exception code for delete: " + ke.getMessage());
}
}
try {
zk.create(nodeName, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NodeExists;
if (!valid) {
fail("Unexpected exception code for create: " + ke.getMessage());
}
}
try {
zk.setData(nodeName, "hi".getBytes(), 5700);
fail("Should have gotten BadVersion exception");
} catch (KeeperException ke) {
if (ke.getCode() != Code.BadVersion) {
fail("Should have gotten BadVersion exception");
}
}
zk.setData(nodeName, "hi".getBytes(), -1);
Stat st = new Stat();
byte[] bytes = zk.getData(nodeName, false, st);
String retrieved = new String(bytes);
if (!"hi".equals(retrieved)) {
fail("The retrieved data [" + retrieved + "] is differented than the expected [hi]");
}
try {
zk.delete(nodeName, 6800);
fail("Should have gotten BadVersion exception");
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid =
code == KeeperException.Code.NotEmpty || code == KeeperException.Code.BadVersion;
if (!valid) {
fail("Unexpected exception code for delete: " + ke.getMessage());
}
}
try {
zk.delete(nodeName, -1);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NotEmpty;
if (!valid) {
fail("Unexpected exception code for delete: " + code);
}
}
deleteZKDir(zk, nodeName);
zk.close();
}
private void enode_test_2() throws IOException, InterruptedException, KeeperException {
checkRoot();
String parentName = testDirOnZK;
String nodeName = parentName + "/enode_abc";
ZooKeeper zk = new ZooKeeper(hostPort, 10000, this);
ZooKeeper zk_1 = new ZooKeeper(hostPort, 10000, this);
Stat stat = zk_1.exists(parentName, false);
if (stat == null) {
try {
zk.create(parentName, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
} catch (KeeperException ke) {
fail("Creating node " + parentName + ke.getMessage());
}
}
stat = zk_1.exists(nodeName, false);
if (stat != null) {
try {
zk.delete(nodeName, -1);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid =
code == KeeperException.Code.NoNode || code == KeeperException.Code.NotEmpty;
if (!valid) {
fail("Unexpected exception code for delete: " + ke.getMessage());
}
}
}
List<String> firstGen = zk_1.getChildren(parentName, true);
try {
zk.create(nodeName, null, Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NodeExists;
if (!valid) {
fail("Unexpected exception code for createin: " + ke.getMessage());
}
}
Thread.sleep(5000);
WatchedEvent event = events.poll(10, TimeUnit.SECONDS);
if (event == null) {
throw new IOException("No event was delivered promptly");
}
if (event.getType() != EventType.NodeChildrenChanged
|| !event.getPath().equalsIgnoreCase(parentName)) {
fail("Unexpected event was delivered: " + event.toString());
}
stat = zk_1.exists(nodeName, false);
if (stat == null) {
fail("node " + nodeName + " should exist");
}
try {
zk.delete(parentName, -1);
fail("Should be impossible to delete a non-empty node " + parentName);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NotEmpty;
if (!valid) {
fail("Unexpected exception code for delete: " + code);
}
}
try {
zk.create(nodeName + "/def", null, Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
fail("Should be impossible to create child off Ephemeral node " + nodeName);
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NoChildrenForEphemerals;
if (!valid) {
fail("Unexpected exception code for createin: " + code);
}
}
try {
List<String> children = zk.getChildren(nodeName, false);
if (children.size() > 0) {
fail("ephemeral node " + nodeName + " should not have children");
}
} catch (KeeperException ke) {
int code = ke.getCode();
boolean valid = code == KeeperException.Code.NoNode;
if (!valid) {
fail("Unexpected exception code for createin: " + code);
}
}
firstGen = zk_1.getChildren(parentName, true);
stat = zk_1.exists(nodeName, true);
if (stat == null) {
fail("node " + nodeName + " should exist");
}
System.out.println("session id of zk: " + zk.getSessionId());
System.out.println("session id of zk_1: " + zk_1.getSessionId());
zk.close();
stat = zk_1.exists("nosuchnode", false);
event = this.getEvent(10);
if (event == null) {
throw new AssertionFailedError("First event was not delivered promptly");
}
if (!((event.getType() == EventType.NodeChildrenChanged
&& event.getPath().equalsIgnoreCase(parentName))
|| (event.getType() == EventType.NodeDeleted
&& event.getPath().equalsIgnoreCase(nodeName)))) {
System.out.print(
parentName
+ " "
+ EventType.NodeChildrenChanged
+ " "
+ nodeName
+ " "
+ EventType.NodeDeleted);
fail("Unexpected first event was delivered: " + event.toString());
}
event = this.getEvent(10);
if (event == null) {
throw new AssertionFailedError("Second event was not delivered promptly");
}
if (!((event.getType() == EventType.NodeChildrenChanged
&& event.getPath().equalsIgnoreCase(parentName))
|| (event.getType() == EventType.NodeDeleted
&& event.getPath().equalsIgnoreCase(nodeName)))) {
System.out.print(
parentName
+ " "
+ EventType.NodeChildrenChanged
+ " "
+ nodeName
+ " "
+ EventType.NodeDeleted);
fail("Unexpected second event was delivered: " + event.toString());
}
firstGen = zk_1.getChildren(parentName, false);
stat = zk_1.exists(nodeName, false);
if (stat != null) {
fail("node " + nodeName + " should have been deleted");
}
if (firstGen.contains(nodeName)) {
fail("node " + nodeName + " should not be a children");
}
deleteZKDir(zk_1, nodeName);
zk_1.close();
}
