本文整理汇总了Java中org.apache.zookeeper.server.Request.getTxn方法的典型用法代码示例。如果您正苦于以下问题：Java Request.getTxn方法的具体用法？Java Request.getTxn怎么用？Java Request.getTxn使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.zookeeper.server.Request的用法示例。
在下文中一共展示了Request.getTxn方法的1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: propose
import org.apache.zookeeper.server.Request; //导入方法依赖的package包/类
/**
* create a proposal and send it out to all the members
*
* @param request
* @return the proposal that is queued to send to all the members
*/
public Proposal propose(Request request) throws XidRolloverException {
/**
* Address the rollover issue. All lower 32bits set indicate a new leader
* election. Force a re-election instead. See ZOOKEEPER-1277
*/
if ((request.zxid & 0xffffffffL) == 0xffffffffL) {
String msg =
"zxid lower 32 bits have rolled over, forcing re-election, and therefore new epoch start";
shutdown(msg);
throw new XidRolloverException(msg);
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
try {
request.getHdr().serialize(boa, "hdr");
if (request.getTxn() != null) {
request.getTxn().serialize(boa, "txn");
}
baos.close();
} catch (IOException e) {
LOG.warn("This really should be impossible", e);
}
QuorumPacket pp = new QuorumPacket(Leader.PROPOSAL, request.zxid,
baos.toByteArray(), null);
Proposal p = new Proposal();
p.packet = pp;
p.request = request;
synchronized(this) {
p.addQuorumVerifier(self.getQuorumVerifier());
if (request.getHdr().getType() == OpCode.reconfig){
self.setLastSeenQuorumVerifier(request.qv, true);
}
if (self.getQuorumVerifier().getVersion()<self.getLastSeenQuorumVerifier().getVersion()) {
p.addQuorumVerifier(self.getLastSeenQuorumVerifier());
}
if (LOG.isDebugEnabled()) {
LOG.debug("Proposing:: " + request);
}
lastProposed = p.packet.getZxid();
outstandingProposals.put(lastProposed, p);
sendPacket(pp);
}
return p;
}