com.google.cloud.bigtable.grpc.io

Class ChannelPool

java.lang.Object

io.grpc.Channel

com.google.cloud.bigtable.grpc.io.ChannelPool

public class ChannelPool
extends io.grpc.Channel

Manages a set of ClosableChannels and uses them in a round robin.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ChannelPool.PooledChannel An implementation of Channel that knows how to return itself to the ChannelPool

Field Summary

Fields

Modifier and Type	Field and Description
protected static Logger	log

Constructor Summary

Constructors

Constructor and Description
ChannelPool(io.grpc.Channel[] channels, List<HeaderInterceptor> headerInterceptors)

Method Summary

Modifier and Type	Method and Description
String	authority()
<ReqT,RespT> io.grpc.ClientCall<ReqT,RespT>	newCall(io.grpc.MethodDescriptor<ReqT,RespT> methodDescriptor, io.grpc.CallOptions callOptions)
ChannelPool.PooledChannel	reserveChannel() Gets a channel from the pool.
int	size()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static final Logger log

Constructor Detail

ChannelPool

public ChannelPool(io.grpc.Channel[] channels,
                   List<HeaderInterceptor> headerInterceptors)

Method Detail

newCall

public <ReqT,RespT> io.grpc.ClientCall<ReqT,RespT> newCall(io.grpc.MethodDescriptor<ReqT,RespT> methodDescriptor,
                                                           io.grpc.CallOptions callOptions)

Specified by:

newCall in class io.grpc.Channel

authority

public String authority()

Specified by:

authority in class io.grpc.Channel

reserveChannel

public ChannelPool.PooledChannel reserveChannel()

Gets a channel from the pool. Long running streaming RPCs can cause a contention issue if there is another RPC started on the same channel. If the pool only has a single channel, keep the channel in the pool so that other RPCs can at least attempt to use it.

size

public int size()