本文整理汇总了Java中org.apache.cassandra.service.ClientState.setCQLVersion方法的典型用法代码示例。如果您正苦于以下问题：Java ClientState.setCQLVersion方法的具体用法？Java ClientState.setCQLVersion怎么用？Java ClientState.setCQLVersion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.cassandra.service.ClientState的用法示例。
在下文中一共展示了ClientState.setCQLVersion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: execute
import org.apache.cassandra.service.ClientState; //导入方法依赖的package包/类
public Message.Response execute(QueryState state)
{
ClientState cState = state.getClientState();
String cqlVersion = options.get(CQL_VERSION);
if (cqlVersion == null)
throw new ProtocolException("Missing value CQL_VERSION in STARTUP message");
try
{
cState.setCQLVersion(cqlVersion);
}
catch (InvalidRequestException e)
{
throw new ProtocolException(e.getMessage());
}
if (cState.getCQLVersion().compareTo(new SemanticVersion("2.99.0")) < 0)
throw new ProtocolException(String.format("CQL version %s is not supported by the binary protocol (supported version are >= 3.0.0)", cqlVersion));
if (options.containsKey(COMPRESSION))
{
String compression = options.get(COMPRESSION).toLowerCase();
if (compression.equals("snappy"))
{
if (FrameCompressor.SnappyCompressor.instance == null)
throw new ProtocolException("This instance does not support Snappy compression");
connection.setCompressor(FrameCompressor.SnappyCompressor.instance);
}
else if (compression.equals("lz4"))
{
connection.setCompressor(FrameCompressor.LZ4Compressor.instance);
}
else
{
throw new ProtocolException(String.format("Unknown compression algorithm: %s", compression));
}
}
if (DatabaseDescriptor.getAuthenticator().requireAuthentication())
return new AuthenticateMessage(DatabaseDescriptor.getAuthenticator().getClass().getName());
else
return new ReadyMessage();
}