Package org.apache.thrift.server
Class AbstractNonblockingServer.FrameBuffer
java.lang.Object
org.apache.thrift.server.AbstractNonblockingServer.FrameBuffer
- Direct Known Subclasses:
AbstractNonblockingServer.AsyncFrameBuffer
- Enclosing class:
- AbstractNonblockingServer
Class that implements a sort of state machine around the interaction with a client and an
invoker. It manages reading the frame size and frame data, getting it handed off as wrapped
transports, and then the writing of response data back to the client. In the process it manages
flipping the read and write bits on the selection key for its client.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected ByteBuffer
protected final ServerContext
protected final TMemoryInputTransport
protected final TProtocol
protected final TTransport
protected final TProtocol
protected final TTransport
protected final TByteArrayOutputStream
protected final SelectionKey
protected final AbstractNonblockingServer.AbstractSelectThread
protected org.apache.thrift.server.AbstractNonblockingServer.FrameBufferState
protected final TNonblockingTransport
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Constructor Summary
ConstructorsConstructorDescriptionFrameBuffer
(TNonblockingTransport trans, SelectionKey selectionKey, AbstractNonblockingServer.AbstractSelectThread selectThread) -
Method Summary
Modifier and TypeMethodDescriptionvoid
Give this FrameBuffer a chance to set its interest to write, once data has come in.void
close()
Shut the connection down.void
invoke()
Actually invoke the method signified by this FrameBuffer.boolean
Check if this FrameBuffer has a full frame read.boolean
read()
Give this FrameBuffer a chance to read.protected void
When this FrameBuffer needs to change its select interests and execution might not be in its select thread, then this method will make sure the interest change gets done when the select thread wakes back up.void
After the processor has processed the invocation, whatever thread is managing invocations should call this method on this FrameBuffer so we know it's time to start trying to write again.boolean
write()
Give this FrameBuffer a chance to write its output to the final client.
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Field Details
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trans_
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selectionKey_
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selectThread_
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state_
protected org.apache.thrift.server.AbstractNonblockingServer.FrameBufferState state_ -
buffer_
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response_
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frameTrans_
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inTrans_
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outTrans_
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inProt_
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outProt_
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context_
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Constructor Details
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FrameBuffer
public FrameBuffer(TNonblockingTransport trans, SelectionKey selectionKey, AbstractNonblockingServer.AbstractSelectThread selectThread) throws TTransportException - Throws:
TTransportException
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Method Details
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read
public boolean read()Give this FrameBuffer a chance to read. The selector loop should have received a read event for this FrameBuffer.- Returns:
- true if the connection should live on, false if it should be closed
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write
public boolean write()Give this FrameBuffer a chance to write its output to the final client. -
changeSelectInterests
public void changeSelectInterests()Give this FrameBuffer a chance to set its interest to write, once data has come in. -
close
public void close()Shut the connection down. -
isFrameFullyRead
public boolean isFrameFullyRead()Check if this FrameBuffer has a full frame read. -
responseReady
public void responseReady()After the processor has processed the invocation, whatever thread is managing invocations should call this method on this FrameBuffer so we know it's time to start trying to write again. Also, if it turns out that there actually isn't any data in the response buffer, we'll skip trying to write and instead go back to reading. -
invoke
public void invoke()Actually invoke the method signified by this FrameBuffer. -
requestSelectInterestChange
protected void requestSelectInterestChange()When this FrameBuffer needs to change its select interests and execution might not be in its select thread, then this method will make sure the interest change gets done when the select thread wakes back up. When the current thread is this FrameBuffer's select thread, then it just does the interest change immediately.
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