/**
* 写入数据
*
* @param obj
*/
public static void insert(Object obj) {
if (!Constants.IN_BDB) {
MonitorLog.addStat(
Constants.DATA_PERSISTENCE_LOG, new String[] {"Bdb Ingore"}, new Long[] {1l});
return;
}
Long kIndex = keyIndex.getAndIncrement();
try {
byte[] vbytes = serialData(obj);
byte[] kbytes = serialData("j" + kIndex);
DatabaseEntry keyEntry = new DatabaseEntry(kbytes);
DatabaseEntry valueEntry = new DatabaseEntry(vbytes);
OperationStatus rtn = database.put(null, keyEntry, valueEntry);
if (rtn != OperationStatus.SUCCESS) {
logger.warn("write to bdb fail" + rtn.name());
MonitorLog.addStat(
Constants.DATA_PERSISTENCE_LOG, new String[] {"Bdb Write Fail"}, new Long[] {1l});
} else {
MonitorLog.addStat(
Constants.DATA_PERSISTENCE_LOG, new String[] {"Bdb Success"}, new Long[] {1l});
}
} catch (Exception e) {
logger.error("write to bdb exception", e);
MonitorLog.addStat(
Constants.DATA_PERSISTENCE_LOG, new String[] {"Bdb Write Exception"}, new Long[] {1l});
}
}
protected OperationStatus getNextNearestItem(DatabaseEntry headKey, DatabaseEntry result)
throws DatabaseException {
Cursor cursor = null;
OperationStatus status;
try {
cursor = this.pendingUrisDB.openCursor(null, null);
// get cap; headKey at this point should always point to
// a queue-beginning cap entry (zero-length value)
status = cursor.getSearchKey(headKey, result, null);
if (status != OperationStatus.SUCCESS) {
LOGGER.severe(
"bdb queue cap missing: " + status.toString() + " " + new String(headKey.getData()));
return status;
}
if (result.getData().length > 0) {
LOGGER.severe("bdb queue has nonzero size: " + result.getData().length);
return OperationStatus.KEYEXIST;
}
// get next item (real first item of queue)
status = cursor.getNext(headKey, result, null);
} finally {
if (cursor != null) {
cursor.close();
}
}
return status;
}
@Override
public synchronized void putDecision(Long instance, Decision decision) {
keyBinding.objectToEntry(instance, key);
dataBinding.objectToEntry(decision, data);
OperationStatus status = db.put(null, key, data);
if (logger.isDebugEnabled()) {
logger.debug("DB put " + decision + " " + status.name());
}
}
@Override
public synchronized void putBallot(Long instance, int ballot) {
keyBinding.objectToEntry(instance, key);
ballotBinding.objectToEntry(ballot, ballot_data);
OperationStatus status = db.put(null, key, ballot_data);
if (logger.isDebugEnabled()) {
logger.debug("DB put ballot " + ballot + " for instance " + instance + " " + status.name());
}
}
@Override
public synchronized boolean containsDecision(Long instance) {
boolean found = false;
keyBinding.objectToEntry(instance, key);
OperationStatus status = db.get(null, key, data, LockMode.DEFAULT);
if (status == OperationStatus.SUCCESS) {
found = true;
}
if (logger.isDebugEnabled()) {
logger.debug("DB contains " + instance + " " + found + " (" + status.name() + ")");
}
return found;
}
@Override
public synchronized Decision getDecision(Long instance) {
keyBinding.objectToEntry(instance, key);
Decision decision = null;
OperationStatus status = db.get(null, key, data, LockMode.DEFAULT);
if (status == OperationStatus.SUCCESS) {
decision = dataBinding.entryToObject(data);
}
if (logger.isDebugEnabled()) {
logger.debug("DB get " + decision + " " + status.name());
}
return decision;
}
@Override
public synchronized int getBallot(Long instance) {
keyBinding.objectToEntry(instance, key);
Integer ballot = null;
OperationStatus status = db.get(null, key, ballot_data, LockMode.DEFAULT);
if (status == OperationStatus.SUCCESS) {
ballot = ballotBinding.entryToObject(ballot_data);
}
if (logger.isDebugEnabled()) {
logger.debug("DB get ballot " + ballot + " for instance " + instance + " " + status.name());
}
return ballot.intValue();
}
/**
* todo:触发更新二级索引
*
* @param key
* @param value
* @throws TddlException
*/
@Override
public void put(
ExecutionContext context,
CloneableRecord key,
CloneableRecord value,
IndexMeta indexMeta,
String dbName)
throws TddlException {
DatabaseEntry keyEntry = new DatabaseEntry();
DatabaseEntry valueEntry = new DatabaseEntry();
keyEntry.setData(indexCodecMap.get(indexMeta.getName()).getKey_codec().encode(key));
// 当临时表排序时候可能会用到临时表join，主键插入值为null
// if (keyEntry.getData().length == 1 && !isTempTable) {
// throw new RuntimeException("pk must not null.");
// }
if (value != null) {
valueEntry.setData(indexCodecMap.get(indexMeta.getName()).getValue_codec().encode(value));
} else {
valueEntry = emptyValueEntry;
}
try {
ITransaction transaction = context.getTransaction();
com.sleepycat.je.Transaction txn = null;
if (transaction != null && transaction instanceof JE_Transaction) {
txn = ((JE_Transaction) transaction).txn;
}
OperationStatus operationStatus = getDatabase(dbName).put(txn, keyEntry, valueEntry);
if (operationStatus.equals(OperationStatus.SUCCESS)) {
return;
}
} catch (LockTimeoutException ex) {
throw ex;
} catch (ReplicaWriteException ex) {
throw new TddlException(ExceptionErrorCodeUtils.Read_only, ex);
}
}