private boolean getResponse() {
if (retries > 20) {
close();
}
if (!acquireReadBuffer()) {
retries++;
return false;
}
try {
// HEADER(1) + DB_VERISON(8)
buffer.limit(9);
int read = connection.read();
log("Get greeting response");
if (read == 1 || read == 9) {
buffer.flip();
byte masterGreeting = buffer.get();
if (masterGreeting == HeaderConstants.BYE) {
log("Problem connecting to master " + connection + ". Got BYE.");
close();
return true;
} else if (masterGreeting != HeaderConstants.MASTER_GREETING) {
log("Got unkown greeting[" + masterGreeting + "] from " + connection);
close();
} else if (read != 9) {
retries++;
connection.pushBackAllReadData();
return false;
}
masterVersion = buffer.getLong();
log("Got master version: " + masterVersion);
if (masterVersion < xaDs.getCurrentLogVersion()) {
log("Got wrong version [" + masterVersion + "]");
close();
return true;
}
setNoRequeue();
setChainJob(new HandleMasterConnection(connection, slave, masterVersion, xaDs));
return true;
} else {
retries++;
if (read > 0) {
connection.pushBackAllReadData();
}
return false;
}
} finally {
releaseReadBuffer();
}
}
@Test
public void hasAllXaManagerBeans() {
for (XaDataSource xaDataSource :
graphDb.getXaDataSourceManager().getAllRegisteredDataSources()) {
XaResourceInfo info = getByName(xaDataSource.getName());
assertEquals(
"wrong branchid for XA data source " + xaDataSource.getName(),
XaManagerBean.toHexString(xaDataSource.getBranchId()),
info.getBranchId());
assertEquals(
"wrong log version for XA data source " + xaDataSource.getName(),
xaDataSource.getCurrentLogVersion(),
info.getLogVersion());
assertEquals(
"wrong last tx ID for XA data source " + xaDataSource.getName(),
xaDataSource.getLastCommittedTxId(),
info.getLastTxId());
}
}
private boolean setupGreeting() {
if (retries > 20) {
close();
}
if (!acquireWriteBuffer()) {
retries++;
return false;
}
buffer.put(HeaderConstants.SLAVE_GREETING);
buffer.putLong(xaDs.getRandomIdentifier());
buffer.putLong(xaDs.getCreationTime());
buffer.putLong(xaDs.getCurrentLogVersion());
byte[] bytes = xaDsName.getBytes();
buffer.putInt(bytes.length);
buffer.put(bytes);
buffer.flip();
log("Setup greeting");
setStatus(Status.SEND_GREETING);
retries = 0;
return true;
}