Examples of org.apache.mina.core.filterchain.IoFilterChain

Package org.apache.mina.core.filterchain

Examples of org.apache.mina.core.filterchain.IoFilterChain

org.apache.mina.core.filterchain.IoFilterChain
A container of {@link IoFilter}s that forwards {@link IoHandler} eventsto the consisting filters and terminal {@link IoHandler} sequentially.Every {@link IoSession} has its own {@link IoFilterChain} (1-to-1 relationship). @author The Apache MINA Project (dev@mina.apache.org) @version $Rev: 593474 $, $Date: 2007-11-09 11:14:12 +0100 (Fri, 09 Nov 2007) $


        try {
            destroy(session);
            return true;
        } catch (Exception e) {
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
        } finally {
            clearWriteRequestQueue(session);
            ((AbstractIoService) session.getService()).getListeners()
                    .fireSessionDestroyed(session);
        }

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                // forwarded to the filter chain.
                if (buf.hasRemaining()) {
                    buf.reset();
                    failedRequests.add(req);
                } else {
                    IoFilterChain filterChain = session.getFilterChain();
                    filterChain.fireMessageSent(req);
                }
            } else {
                failedRequests.add(req);
            }


            // Discard others.
            while ((req = writeRequestQueue.poll(session)) != null) {
                failedRequests.add(req);
            }
        }


        // Create an exception and notify.
        if (!failedRequests.isEmpty()) {
            WriteToClosedSessionException cause = new WriteToClosedSessionException(
                    failedRequests);
            for (WriteRequest r : failedRequests) {
                session.decreaseScheduledBytesAndMessages(r);
                r.getFuture().setException(cause);
            }
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(cause);
        }
    }

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        // Now, we can write the message. First, create a future
        WriteFuture writeFuture = new DefaultWriteFuture(this);
        WriteRequest writeRequest = new DefaultWriteRequest(message, writeFuture, remoteAddress);
        
        // Then, get the chain and inject the WriteRequest into it
        IoFilterChain filterChain = getFilterChain();
        filterChain.fireFilterWrite(writeRequest);


        // TODO : This is not our business ! The caller has created a FileChannel,
        // he has to close it !
        if (openedFileChannel != null) {
            // If we opened a FileChannel, it needs to be closed when the write has completed

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            } finally {
                buf.flip();
            }


            if (readBytes > 0) {
                IoFilterChain filterChain = session.getFilterChain();
                filterChain.fireMessageReceived(buf);
                buf = null;


                if (hasFragmentation) {
                    if (readBytes << 1 < config.getReadBufferSize()) {
                        session.decreaseReadBufferSize();
                    } else if (readBytes == config.getReadBufferSize()) {
                        session.increaseReadBufferSize();
                    }
                }
            }
            
            if (ret < 0) {
                scheduleRemove(session);
            }
        } catch (Throwable e) {
            if (e instanceof IOException) {
                if (!(e instanceof PortUnreachableException)
                        || !AbstractDatagramSessionConfig.class
                                .isAssignableFrom(config.getClass())
                        || ((AbstractDatagramSessionConfig) config)
                                .isCloseOnPortUnreachable())


                    scheduleRemove(session);
            }
            
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
        }
    }

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                                && !session.isScheduledForFlush()) {
                            scheduleFlush(session);
                        }
                    } catch (Exception e) {
                        scheduleRemove(session);
                        IoFilterChain filterChain = session.getFilterChain();
                        filterChain.fireExceptionCaught(e);
                    }
                    
                    break;
                    
                case CLOSING:

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            } while (writtenBytes < maxWrittenBytes);
        } catch (Exception e) {
          if (req != null) {
            req.getFuture().setException(e);
          }
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
            return false;
        }


        return true;
    }

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        return localWrittenBytes;
    }


    private void fireMessageSent(T session, WriteRequest req) {
        session.setCurrentWriteRequest(null);
        IoFilterChain filterChain = session.getFilterChain();
        filterChain.fireMessageSent(req);
    }

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     */
    public void updateTrafficControl(T session) {
        try {
            setInterestedInRead(session, !session.isReadSuspended());
        } catch (Exception e) {
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
        }
        
        try {
            setInterestedInWrite(session, 
                !session.getWriteRequestQueue().isEmpty(session) && 
                !session.isWriteSuspended());
        } catch (Exception e) {
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
        }
    }

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        // Now, we can write the message. First, create a future
        WriteFuture writeFuture = new DefaultWriteFuture(this);
        WriteRequest writeRequest = new DefaultWriteRequest(message, writeFuture, remoteAddress);
        
        // Then, get the chain and inject the WriteRequest into it
        IoFilterChain filterChain = getFilterChain();
        filterChain.fireFilterWrite(writeRequest);


        // TODO : This is not our business ! The caller has created a FileChannel,
        // he has to close it !
        if (openedFileChannel != null) {
            // If we opened a FileChannel, it needs to be closed when the write has completed

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        try {
            destroy(session);
            return true;
        } catch (Exception e) {
            IoFilterChain filterChain = session.getFilterChain();
            filterChain.fireExceptionCaught(e);
        } finally {
            clearWriteRequestQueue(session);
            ((AbstractIoService) session.getService()).getListeners()
                    .fireSessionDestroyed(session);
        }

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