本文整理汇总了Java中org.apache.cassandra.db.ReadCommand.createMessage方法的典型用法代码示例。如果您正苦于以下问题:Java ReadCommand.createMessage方法的具体用法?Java ReadCommand.createMessage怎么用?Java ReadCommand.createMessage使用的例子?那么, 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.cassandra.db.ReadCommand
的用法示例。
在下文中一共展示了ReadCommand.createMessage方法的3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: makeRequests
import org.apache.cassandra.db.ReadCommand; //导入方法依赖的package包/类
private void makeRequests(ReadCommand readCommand, Iterable<InetAddress> endpoints)
{
MessageOut<ReadCommand> message = null;
boolean hasLocalEndpoint = false;
for (InetAddress endpoint : endpoints)
{
if (isLocalRequest(endpoint))
{
hasLocalEndpoint = true;
continue;
}
logger.trace("reading {} from {}", readCommand.isDigestQuery() ? "digest" : "data", endpoint);
if (message == null)
message = readCommand.createMessage();
MessagingService.instance().sendRR(message, endpoint, handler);
}
// We delay the local (potentially blocking) read till the end to avoid stalling remote requests.
if (hasLocalEndpoint)
{
logger.trace("reading {} locally", readCommand.isDigestQuery() ? "digest" : "data");
StageManager.getStage(Stage.READ).maybeExecuteImmediately(new LocalReadRunnable(command, handler));
}
}
示例2: makeDigestRequests
import org.apache.cassandra.db.ReadCommand; //导入方法依赖的package包/类
protected void makeDigestRequests(Iterable<InetAddress> endpoints)
{
ReadCommand digestCommand = command.copy();
digestCommand.setDigestQuery(true);
MessageOut<?> message = digestCommand.createMessage();
for (InetAddress endpoint : endpoints)
{
if (isLocalRequest(endpoint))
{
logger.trace("reading digest locally");
StageManager.getStage(Stage.READ).execute(new LocalReadRunnable(digestCommand, handler));
}
else
{
logger.trace("reading digest from {}", endpoint);
MessagingService.instance().sendRR(message, endpoint, handler);
}
}
}
示例3: makeRequests
import org.apache.cassandra.db.ReadCommand; //导入方法依赖的package包/类
private void makeRequests(ReadCommand readCommand, Iterable<InetAddress> endpoints)
{
boolean hasLocalEndpoint = false;
for (InetAddress endpoint : endpoints)
{
if (StorageProxy.canDoLocalRequest(endpoint))
{
hasLocalEndpoint = true;
continue;
}
if (traceState != null)
traceState.trace("reading {} from {}", readCommand.isDigestQuery() ? "digest" : "data", endpoint);
logger.trace("reading {} from {}", readCommand.isDigestQuery() ? "digest" : "data", endpoint);
MessageOut<ReadCommand> message = readCommand.createMessage(MessagingService.instance().getVersion(endpoint));
MessagingService.instance().sendRRWithFailure(message, endpoint, handler);
}
// We delay the local (potentially blocking) read till the end to avoid stalling remote requests.
if (hasLocalEndpoint)
{
logger.trace("reading {} locally", readCommand.isDigestQuery() ? "digest" : "data");
StageManager.getStage(Stage.READ).maybeExecuteImmediately(new LocalReadRunnable(command, handler));
}
}