本文整理汇总了Java中org.apache.zookeeper.txn.CreateSessionTxn类的典型用法代码示例。如果您正苦于以下问题：Java CreateSessionTxn类的具体用法？Java CreateSessionTxn怎么用？Java CreateSessionTxn使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
CreateSessionTxn类属于org.apache.zookeeper.txn包，在下文中一共展示了CreateSessionTxn类的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: processTxn
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
public ProcessTxnResult processTxn(TxnHeader hdr, Record txn) {
ProcessTxnResult rc;
int opCode = hdr.getType();
long sessionId = hdr.getClientId();
rc = getZKDatabase().processTxn(hdr, txn);
if (opCode == OpCode.createSession) {
if (txn instanceof CreateSessionTxn) {
CreateSessionTxn cst = (CreateSessionTxn) txn;
sessionTracker.addSession(sessionId, cst
.getTimeOut());
} else {
LOG.warn("*****>>>>> Got "
+ txn.getClass() + " "
+ txn.toString());
}
} else if (opCode == OpCode.closeSession) {
sessionTracker.removeSession(sessionId);
}
return rc;
}
示例2: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* Applies transaction to this <code>DataState</code>. Zxid of transaction
* <code>t</code> is not checked, and it is possible to apply out of order
* transactions using this method. User should take care about consistency.
*
* @param t Transaction to be applied.
*/
public void processTransaction(Transaction t) {
TxnHeader hdr = t.getTxnHeader();
Record txn = t.getTxnRecord();
//there should be a check for put and remove operations
switch (hdr.getType()) {
case ZooDefs.OpCode.createSession:
sessions.put(hdr.getClientId(), ((CreateSessionTxn) txn).getTimeOut());
break;
case ZooDefs.OpCode.closeSession:
sessions.remove(hdr.getClientId());
break;
}
dt.processTxn(hdr, txn);
}
示例3: playLog
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* play the log from this logstream into the datatree
* @param logStream
* @return
* @throws IOException
*/
public long playLog(InputArchive logStream) throws IOException {
long highestZxid = 0;
try {
while (true) {
byte[] bytes = logStream.readBuffer("txnEntry");
if (bytes.length == 0) {
// Since we preallocate, we define EOF to be an
// empty transaction
throw new EOFException();
}
TxnHeader hdr = new TxnHeader();
Record txn = SerializeUtils.deserializeTxn(bytes, hdr);
if (logStream.readByte("EOR") != 'B') {
LOG.warn("Last transaction was partial.");
throw new EOFException("Last transaction was partial.");
}
if (hdr.getZxid() <= highestZxid && highestZxid != 0) {
LOG.error(highestZxid + "(higestZxid) >= "
+ hdr.getZxid() + "(next log) for type "
+ hdr.getType());
} else {
highestZxid = hdr.getZxid();
}
switch (hdr.getType()) {
case OpCode.createSession:
sessionsWithTimeouts.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,
ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: 0x"
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
oldDataTree.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessionsWithTimeouts.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,
ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: 0x"
+ Long.toHexString(hdr.getClientId()));
}
oldDataTree.processTxn(hdr, txn);
break;
default:
oldDataTree.processTxn(hdr, txn);
}
Request r = new Request(null, 0, hdr.getCxid(), hdr.getType(),
null, null);
r.txn = txn;
r.hdr = hdr;
r.zxid = hdr.getZxid();
}
} catch (EOFException e) {
// expected in some cases - see comments in try block
}
return highestZxid;
}
示例4: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* process the transaction on the datatree
* @param hdr the hdr of the transaction
* @param dt the datatree to apply transaction to
* @param sessions the sessions to be restored
* @param txn the transaction to be applied
*/
public void processTransaction(TxnHeader hdr,DataTree dt,
Map<Long, Integer> sessions, Record txn)
throws KeeperException.NoNodeException {
ProcessTxnResult rc;
switch (hdr.getType()) {
case OpCode.createSession:
sessions.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: 0x"
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
rc = dt.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessions.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: 0x"
+ Long.toHexString(hdr.getClientId()));
}
rc = dt.processTxn(hdr, txn);
break;
default:
rc = dt.processTxn(hdr, txn);
}
/**
* Snapshots are lazily created. So when a snapshot is in progress,
* there is a chance for later transactions to make into the
* snapshot. Then when the snapshot is restored, NONODE/NODEEXISTS
* errors could occur. It should be safe to ignore these.
*/
if (rc.err != Code.OK.intValue()) {
LOG.debug("Ignoring processTxn failure hdr:" + hdr.getType()
+ ", error: " + rc.err + ", path: " + rc.path);
}
}
示例5: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* process the transaction on the datatree
* @param hdr the hdr of the transaction
* @param dt the datatree to apply transaction to
* @param sessions the sessions to be restored
* @param txn the transaction to be applied
*/
public void processTransaction(TxnHeader hdr,DataTree dt,
Map<Long, Integer> sessions, Record txn)
throws KeeperException.NoNodeException {
ProcessTxnResult rc;
switch (hdr.getType()) {
case OpCode.createSession:
sessions.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: 0x"
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
rc = dt.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessions.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: 0x"
+ Long.toHexString(hdr.getClientId()));
}
rc = dt.processTxn(hdr, txn);
break;
default:
rc = dt.processTxn(hdr, txn);
}
/**
* Snapshots are lazily created. So when a snapshot is in progress,
* there is a chance for later transactions to make into the
* snapshot. Then when the snapshot is restored, NONODE/NODEEXISTS
* errors could occur. It should be safe to ignore these.
*/
if (rc.err != Code.OK.intValue()) {
LOG.debug(
"Ignoring processTxn failure hdr: {}, error: {}, path: {}",
hdr.getType(), rc.err, rc.path);
}
}
示例6: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* process the transaction on the datatree
* @param hdr the hdr of the transaction
* @param dt the datatree to apply transaction to
* @param sessions the sessions to be restored
* @param txn the transaction to be applied
*/
public void processTransaction(TxnHeader hdr,DataTree dt,
Map<Long, Integer> sessions, Record txn)
throws KeeperException.NoNodeException {
ProcessTxnResult rc;
switch (hdr.getType()) {
case OpCode.createSession:
sessions.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: 0x"
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
rc = dt.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessions.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: 0x"
+ Long.toHexString(hdr.getClientId()));
}
rc = dt.processTxn(hdr, txn);
break;
default:
rc = dt.processTxn(hdr, txn);
}
/**
* This should never happen. A NONODE can never show up in the
* transaction logs. This is more indicative of a corrupt transaction
* log. Refer ZOOKEEPER-1333 for more info.
*/
if (rc.err != Code.OK.intValue()) {
if (hdr.getType() == OpCode.create && rc.err == Code.NONODE.intValue()) {
int lastSlash = rc.path.lastIndexOf('/');
String parentName = rc.path.substring(0, lastSlash);
LOG.error("Parent {} missing for {}", parentName, rc.path);
throw new KeeperException.NoNodeException(parentName);
} else {
LOG.debug("Ignoring processTxn failure hdr: " + hdr.getType() +
" : error: " + rc.err);
}
}
}
示例7: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* process the transaction on the datatree
* @param hdr the hdr of the transaction
* @param dt the datatree to apply transaction to
* @param sessions the sessions to be restored
* @param txn the transaction to be applied
*/
public void processTransaction(TxnHeader hdr,DataTree dt,
Map<Long, Integer> sessions, Record txn)
throws KeeperException.NoNodeException {
ProcessTxnResult rc;
switch (hdr.getType()) {
case OpCode.createSession:
sessions.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: "
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
rc = dt.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessions.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: "
+ Long.toHexString(hdr.getClientId()));
}
rc = dt.processTxn(hdr, txn);
break;
default:
rc = dt.processTxn(hdr, txn);
}
/**
* Snapshots are taken lazily. It can happen that the child
* znodes of a parent are modified (deleted or created) after the parent
* is serialized. Therefore, while replaying logs during restore, a
* delete/create might fail because the node was already
* deleted/created.
*
* After seeing this failure, we should increment
* the cversion of the parent znode since the parent was serialized
* before its children.
*
* Note, such failures on DT should be seen only during
* restore.
*/
if ((hdr.getType() == OpCode.create &&
rc.err == Code.NODEEXISTS.intValue()) &&
((CreateTxn)txn).getParentCVersion() == -1) {
LOG.debug("Failed Txn: " + hdr.getType() + " path:" +
rc.path + " err: " + rc.err);
int lastSlash = rc.path.lastIndexOf('/');
String parentName = rc.path.substring(0, lastSlash);
try {
dt.incrementCversion(parentName, hdr.getZxid());
} catch (KeeperException.NoNodeException e) {
LOG.error("Failed to increment parent cversion for: " +
parentName, e);
throw e;
}
} else if (rc.err != Code.OK.intValue()) {
LOG.debug("Ignoring processTxn failure hdr: " + hdr.getType() +
" : error: " + rc.err);
}
}
示例8: playLog
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* play the log from this logstream into the datatree
* @param logStream
* @return
* @throws IOException
*/
public long playLog(InputArchive logStream) throws IOException {
long highestZxid = 0;
try {
while (true) {
byte[] bytes = logStream.readBuffer("txnEntry");
if (bytes.length == 0) {
// Since we preallocate, we define EOF to be an
// empty transaction
throw new EOFException();
}
InputArchive ia = BinaryInputArchive
.getArchive(new ByteArrayInputStream(bytes));
TxnHeader hdr = new TxnHeader();
Record txn = SerializeUtils.deserializeTxn(ia, hdr);
if (logStream.readByte("EOR") != 'B') {
LOG.warn("Last transaction was partial.");
throw new EOFException("Last transaction was partial.");
}
if (hdr.getZxid() <= highestZxid && highestZxid != 0) {
LOG.error(highestZxid + "(higestZxid) >= "
+ hdr.getZxid() + "(next log) for type "
+ hdr.getType());
} else {
highestZxid = hdr.getZxid();
}
switch (hdr.getType()) {
case OpCode.createSession:
sessionsWithTimeouts.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,
ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: 0x"
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
oldDataTree.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessionsWithTimeouts.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,
ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: 0x"
+ Long.toHexString(hdr.getClientId()));
}
oldDataTree.processTxn(hdr, txn);
break;
default:
oldDataTree.processTxn(hdr, txn);
}
Request r = new Request(null, 0, hdr.getCxid(), hdr.getType(),
null, null);
r.txn = txn;
r.hdr = hdr;
r.zxid = hdr.getZxid();
}
} catch (EOFException e) {
// expected in some cases - see comments in try block
}
return highestZxid;
}
示例9: processTransaction
import org.apache.zookeeper.txn.CreateSessionTxn; //导入依赖的package包/类
/**
* process the transaction on the datatree
* @param hdr the hdr of the transaction
* @param dt the datatree to apply transaction to
* @param sessions the sessions to be restored
* @param txn the transaction to be applied
*/
public void processTransaction(TxnHeader hdr,DataTree dt,
Map<Long, Integer> sessions, Record txn)
throws KeeperException.NoNodeException {
ProcessTxnResult rc;
switch (hdr.getType()) {
case OpCode.createSession:
sessions.put(hdr.getClientId(),
((CreateSessionTxn) txn).getTimeOut());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- create session in log: "
+ Long.toHexString(hdr.getClientId())
+ " with timeout: "
+ ((CreateSessionTxn) txn).getTimeOut());
}
// give dataTree a chance to sync its lastProcessedZxid
rc = dt.processTxn(hdr, txn);
break;
case OpCode.closeSession:
sessions.remove(hdr.getClientId());
if (LOG.isTraceEnabled()) {
ZooTrace.logTraceMessage(LOG,ZooTrace.SESSION_TRACE_MASK,
"playLog --- close session in log: "
+ Long.toHexString(hdr.getClientId()));
}
rc = dt.processTxn(hdr, txn);
break;
default:
rc = dt.processTxn(hdr, txn);
}
/**
* Snapshots are taken lazily. It can happen that the child
* znodes of a parent are modified (deleted or created) after the parent
* is serialized. Therefore, while replaying logs during restore, a
* delete/create might fail because the node was already
* deleted/created.
*
* After seeing this failure, we should increment
* the cversion of the parent znode since the parent was serialized
* before its children.
*
* Note, such failures on DT should be seen only during
* restore.
*/
if ((hdr.getType() == OpCode.delete &&
rc.err == Code.NONODE.intValue()) ||
(hdr.getType() == OpCode.create &&
rc.err == Code.NODEEXISTS.intValue())) {
LOG.debug("Failed Txn: " + hdr.getType() + " path:" +
rc.path + " err: " + rc.err);
int lastSlash = rc.path.lastIndexOf('/');
String parentName = rc.path.substring(0, lastSlash);
try {
dt.incrementCversion(parentName, hdr.getZxid());
} catch (KeeperException.NoNodeException e) {
LOG.error("Failed to increment parent cversion for: " +
parentName, e);
throw e;
}
} else if (rc.err != Code.OK.intValue()) {
LOG.debug("Ignoring processTxn failure hdr: " + hdr.getType() +
" : error: " + rc.err);
}
}