Examples of org.glassfish.grizzly.filterchain.FilterChain

Package org.glassfish.grizzly.filterchain

Examples of org.glassfish.grizzly.filterchain.FilterChain

org.glassfish.grizzly.filterchain.FilterChain
This class implement the "Chain of Responsibility" pattern (for more info, take a look at the classic "Gang of Four" design patterns book). Towards that end, the Chain API models a computation as a series of "protocol filter" that can be combined into a "protocol chain".
The API for Filter consists of a two set of methods (handleXXX() and postXXX) which is passed a "protocol context" parameter containing the dynamic state of the computation, and whose return value is a {@link NextAction} that instructs FilterChain, how it shouldcontinue processing. The owning ProtocolChain must call the postXXX() method of each Filter in a FilterChain in reverse order of the invocation of their handleXXX() methods.
The following picture describe how it Filter(s)
```
 ----------------------------------------------------------------------------- - Filter1.handleXXX() --> Filter2.handleXXX()                    |          - -                                                                |          - -                                                                |          - -                                                                |          - - Filter1.postXXX() <-- Filter2.postXXX()                        |          - ----------------------------------------------------------------------------- 
```
The "context" abstraction is designed to isolate Filter implementations from the environment in which they are run (such as a Filter that can be used in either IIOP or HTTP parsing, without being tied directly to the API contracts of either of these environments). For Filter that need to allocate resources prior to delegation, and then release them upon return (even if a delegated-to Filter throws an exception), the "postXXX" method can be used for cleanup.
@see Filter @see Codec @author Jeanfrancois Arcand @author Alexey Stashok

        // ----------------------------------------- Methods from TransportProbe




        @Override
        public void onBeforeStartEvent(Transport transport) {
            final FilterChain dummyTransportFilterChain = filterChainBuilder.build();
            
            FilterChainBuilder builder = FilterChainBuilder.stateless();
            for (int i = 0, len = dummyTransportFilterChain.size(); i < len; i++) {
                builder.add(dummyTransportFilterChain.get(i));
            }
            
            updateFilterChain(SpdyMode.NPN, builder);
            NextProtoNegSupport.getInstance().setServerSideNegotiator(transport,
                    new ProtocolNegotiator(builder.build()));

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            final boolean hasRemaining = buffer != null && buffer.hasRemaining();
            
            final boolean isHandshaking = isHandshaking(sslEngine);
            if (!isHandshaking) {
                notifyHandshakeComplete(connection, sslEngine);
                final FilterChain connectionFilterChain = sslCtx.getNewConnectionFilterChain();
                sslCtx.setNewConnectionFilterChain(null);
                if (connectionFilterChain != null) {
                    if (LOGGER.isLoggable(Level.FINE)) {
                        LOGGER.log(Level.FINE, "Applying new FilterChain after"
                                + "SSLHandshake. Connection={0} filterchain={1}",

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    // --------------------------------------------------------- Private Methods




    private void configureListener(final NetworkListener listener) {
        FilterChain chain = listener.getFilterChain();
        if (chain == null) {
            final FilterChainBuilder builder = FilterChainBuilder.stateless();
            builder.add(new TransportFilter());
            if (listener.isSecure()) {
                SSLEngineConfigurator sslConfig = listener.getSslEngineConfig();

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    // --------------------------------------------------------- Private Methods
    


    protected FileCacheFilter lookupFileCache(final FilterChainContext fcContext) {
        final FilterChain fc = fcContext.getFilterChain();
        final int lastFileCacheIdx = fileCacheFilterIdx;


        if (lastFileCacheIdx != -1) {
            final Filter filter = fc.get(lastFileCacheIdx);
            if (filter instanceof FileCacheFilter) {
                return (FileCacheFilter) filter;
            }
        }


        final int size = fc.size();
        for (int i = 0; i < size; i++) {
            final Filter filter = fc.get(i);


            if (filter instanceof FileCacheFilter) {
                fileCacheFilterIdx = i;
                return (FileCacheFilter) filter;
            }

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            final boolean hasRemaining = buffer != null && buffer.hasRemaining();
            
            final boolean isHandshaking = isHandshaking(sslEngine);
            if (!isHandshaking) {
                notifyHandshakeComplete(connection, sslEngine);
                final FilterChain connectionFilterChain = sslCtx.getNewConnectionFilterChain();
                sslCtx.setNewConnectionFilterChain(null);
                if (connectionFilterChain != null) {
                    if (LOGGER.isLoggable(Level.FINE)) {
                        LOGGER.log(Level.FINE, "Applying new FilterChain after"
                                + "SSLHandshake. Connection={0} filterchain={1}",

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    // --------------------------------------------------------- Private Methods




    private void configureListener(final NetworkListener listener) {
        FilterChain chain = listener.getFilterChain();
        if (chain == null) {
            final FilterChainBuilder builder = FilterChainBuilder.stateless();
            builder.add(new TransportFilter());
            if (listener.isSecure()) {
                SSLEngineConfigurator sslConfig = listener.getSslEngineConfig();

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    private static FilterChainContext checkAndHandleFilterChainUpdate(final FilterChainContext ctx, final FilterChainContext sendingCtx) {
        FilterChainContext ctxLocal = sendingCtx;
        SSLConnectionContext sslCtx = SSLUtils.getSslConnectionContext(ctx.getConnection());
        if (sslCtx != null) {
            FilterChain fc = sslCtx.getNewConnectionFilterChain();


            if (fc != null) {
                // Create a new FilterChain context using the new
                // FilterChain.
                // TODO: We need to mark this connection somehow

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        return Threads.isService();
    }




    private void flushOnSSLHandshakeComplete() throws IOException {
        final FilterChain filterChain = context.getFilterChain();
        final int idx = filterChain.indexOfType(SSLFilter.class);
        assert (idx != -1);
        final SSLFilter filter = (SSLFilter) filterChain.get(idx);
        final Connection c = context.getConnection();
        filter.addHandshakeListener(new SSLBaseFilter.HandshakeListener() {
            public void onStart(Connection connection) {
            }

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        configurationFile = configurationFile != null ? configurationFile : getClass().getSimpleName().toLowerCase() + ".yml";
        this.configuration = ursusApplicationHelper.parseConfiguration(configurationFile, configurationClass);


        ursusApplicationHelper.configureLogging(configuration);
        FilterChain filterChain = boostrap(configuration, FilterChainBuilder.stateless());
        transport = initializeServer(filterChain, configuration);
        run(transport);




    }

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        parseArguments(args);
        this.configuration = parseConfiguration();


        configureLogging(configuration);
        FilterChain filterChain = boostrap(configuration, FilterChainBuilder.stateless());
        run(initializeServer(filterChain));
    }

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