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20 package org.apache.mina.transport.socket.nio;
21
22 import java.io.IOException;
23 import java.util.Queue;
24
25 import org.apache.mina.common.ByteBuffer;
26 import org.apache.mina.common.IoFilter.WriteRequest;
27 import org.apache.mina.common.IoFilterChain;
28 import org.apache.mina.common.IoSession;
29 import org.apache.mina.common.support.AbstractIoFilterChain;
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36 class SocketFilterChain extends AbstractIoFilterChain {
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38 SocketFilterChain(IoSession parent) {
39 super(parent);
40 }
41
42 @Override
43 protected void doWrite(IoSession session, WriteRequest writeRequest) {
44 SocketSessionImpl s = (SocketSessionImpl) session;
45 Queue<WriteRequest> writeRequestQueue = s.getWriteRequestQueue();
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49 ByteBuffer buffer = (ByteBuffer) writeRequest.getMessage();
50 buffer.mark();
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52 int remaining = buffer.remaining();
53 if (remaining == 0) {
54 s.increaseScheduledWriteRequests();
55 } else {
56 s.increaseScheduledWriteBytes(buffer.remaining());
57 }
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59 writeRequestQueue.add(writeRequest);
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61 if (session.getTrafficMask().isWritable()) {
62 s.getIoProcessor().flush(s);
63 }
64 }
65
66 @Override
67 protected void doClose(IoSession session) throws IOException {
68 SocketSessionImpl s = (SocketSessionImpl) session;
69 s.getIoProcessor().remove(s);
70 }
71 }