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) $

        if (firstSession) {
            fireServiceActivated();
        }


        // Fire session events.
        IoFilterChain filterChain = session.getFilterChain();
        filterChain.fireSessionCreated();
        filterChain.fireSessionOpened();


        int managedSessionCount = managedSessions.size();


        if (managedSessionCount > largestManagedSessionCount) {
            largestManagedSessionCount = managedSessionCount;

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    /**
     * {@inheritDoc}
     */
    public final boolean isSecured() {
        // If the session does not have a SslFilter, we can return false
        IoFilterChain chain = getFilterChain();


        IoFilter sslFilter = chain.get(SslFilter.class);


        if (sslFilter != null) {
        // Get the SslHandler from the SslFilter
            return ((SslFilter)sslFilter).isSslStarted(this);
        } else {

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        // and reclaim the local address when the connection is closed.
        localSession.getCloseFuture().addListener(LOCAL_ADDRESS_RECLAIMER);


        // initialize connector session
        try {
            IoFilterChain filterChain = localSession.getFilterChain();
            this.getFilterChainBuilder().buildFilterChain(filterChain);


            // The following sentences don't throw any exceptions.
            getListeners().fireSessionCreated(localSession);
            idleChecker.addSession(localSession);
        } catch (Exception e) {
            future.setException(e);
            return future;
        }


        // initialize acceptor session
        VmPipeSession remoteSession = localSession.getRemoteSession();
        ((VmPipeAcceptor) remoteSession.getService()).doFinishSessionInitialization(remoteSession, null);
        try {
            IoFilterChain filterChain = remoteSession.getFilterChain();
            entry.getAcceptor().getFilterChainBuilder().buildFilterChain(filterChain);


            // The following sentences don't throw any exceptions.
            entry.getListeners().fireSessionCreated(remoteSession);
            idleChecker.addSession(remoteSession);

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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);
        }
        return false;

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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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            } 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);
                IoFilterChain filterChain = session.getFilterChain();
                filterChain.fireInputClosed();
            }
        } catch (Exception 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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        } 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(S session, WriteRequest req) {
        session.setCurrentWriteRequest(null);
        IoFilterChain filterChain = session.getFilterChain();
        filterChain.fireMessageSent(req);
    }

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    public void updateTrafficControl(S 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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