Example usage for io.netty.channel ChannelHandlerContext isRemoved

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext isRemoved.

Prototype

boolean isRemoved();

Source Link

Document

Return true if the ChannelHandler which belongs to this context was removed from the ChannelPipeline .

Usage

From source file:code.google.nfs.rpc.netty.serialize.NettyProtocolDecoder.java

License:Apache License

/**
 * Called once data should be decoded from the given {@link ByteBuf}. This method will call
 * {@link #decode(ChannelHandlerContext, ByteBuf, List)} as long as decoding should take place.
 *
 * @param ctx           the {@link ChannelHandlerContext} which this {@link ByteToMessageDecoder} belongs to
 * @param in            the {@link ByteBuf} from which to read data
 * @param out           the {@link List} to which decoded messages should be added
 */// w w  w. j  a  v  a 2s.c  o m
protected void callDecode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
    try {
        while (in.isReadable()) {
            int outSize = out.size();
            int oldInputLength = in.readableBytes();
            decode(ctx, in, out);

            // Check if this handler was removed before try to continue the loop.
            // If it was removed it is not safe to continue to operate on the buffer
            //
            // See https://github.com/netty/netty/issues/1664
            if (ctx.isRemoved()) {
                break;
            }

            if (outSize == out.size()) {
                if (oldInputLength == in.readableBytes()) {
                    break;
                } else {
                    continue;
                }
            }

            if (oldInputLength == in.readableBytes()) {
                throw new DecoderException(StringUtil.simpleClassName(getClass())
                        + ".decode() did not read anything but decoded a message.");
            }

            if (isSingleDecode()) {
                break;
            }
        }
    } catch (DecoderException e) {
        throw e;
    } catch (Throwable cause) {
        throw new DecoderException(cause);
    }
}

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From source file:com.emin.igwmp.skm.core.netty.handler.SocksServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, String msg) throws Exception {
    distributeService.Distribute(ctx, JSON.parseObject(msg, ChiefEntity.class));
    if (!ctx.isRemoved()) {
        return;//from  ww  w. jav  a2s .  c om
    }
}

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From source file:divconq.net.ByteToMessageDecoder.java

License:Apache License

protected void callDecode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
    try {//from  www.  j  av a  2  s .  c  o m
        while (in.isReadable()) {
            int outSize = out.size();
            int oldInputLength = in.readableBytes();

            this.decode(ctx, in, out);

            // Check if this handler was removed before continuing the loop.
            // If it was removed, it is not safe to continue to operate on the buffer.
            //
            // See https://github.com/netty/netty/issues/1664
            if (ctx.isRemoved()) {
                break;
            }

            if (outSize == out.size()) {
                if (oldInputLength == in.readableBytes()) {
                    break;
                } else {
                    continue;
                }
            }

            if (oldInputLength == in.readableBytes()) {
                throw new DecoderException(StringUtil.simpleClassName(getClass())
                        + ".decode() did not read anything but decoded a message.");
            }

            if (this.isSingleDecode()) {
                break;
            }
        }
    } catch (DecoderException e) {
        throw e;
    } catch (Throwable cause) {
        throw new DecoderException(cause);
    }
}

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From source file:net.NettyEngine4.ServerHandler.java

License:Apache License

/**
 * Calls {@link io.netty.channel.ChannelHandlerContext#fireChannelInactive()} to forward
 * to the next {@link io.netty.channel.Channel} in the {@link io.netty.channel.ChannelPipeline}.
 *
 * Sub-classes may override this method to change behavior.
 *
 * ??/*www .  ja va 2 s.c o m*/
 */
@Override
public void channelInactive(ChannelHandlerContext ctx) {
    try {
        ctx.channel().close();
        //clear and store data!  channel closed!
        // this.player.saveAndDestory();

        countConnection.decrementAndGet();// -1

        if (logger.isDebugEnabled())
            logger.debug(ctx.channel().remoteAddress() + " channelClosed , Concurrent  connection... "
                    + countConnection.get());

        ChannelPipeline channelPipeline = ctx.channel().pipeline();

        if (null == channelPipeline) { // if null ,will be returned
            return;
        }
        //remove pipeline object
        while (channelPipeline.last() != null) {
            channelPipeline.removeLast();
        }
        if (ctx.isRemoved()) {
            ctx.close();
            // Set to null so the GC can collect them directly
            channelPipeline = null;
            ctx = null;
            player = null;
        }
    } catch (NoSuchElementException ee) {
        //do nothing
    } catch (Exception e) {
        if (logger.isDebugEnabled())
            logger.error("", e);
        //do nothing
    }
}

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From source file:org.opendaylight.sxp.core.SxpConnection.java

License:Open Source License

/**
 * Gets ChannelHandlerContext according to specified type
 *
 * @param channelHandlerContextType Type of ChannelHandlerContext
 * @return ChannelHandlerContext marked with specified type
 * @throws ChannelHandlerContextNotFoundException    If ChannelHandlerContext isn't present
 * @throws ChannelHandlerContextDiscrepancyException If there are more ChannelHandlerContext,
 *                                                   that it used to be
 *//*from   w  ww  . j a  v a2 s.c o  m*/
public ChannelHandlerContext getChannelHandlerContext(ChannelHandlerContextType channelHandlerContextType)
        throws ChannelHandlerContextNotFoundException, ChannelHandlerContextDiscrepancyException {
    synchronized (ctxs) {
        if ((isModeBoth() && ctxs.size() > 2) || (!isModeBoth() && ctxs.size() > 1)) {
            LOG.warn(this + " Registered contexts: " + ctxs);
            throw new ChannelHandlerContextDiscrepancyException();
        }
        ChannelHandlerContext ctx = ctxs.get(channelHandlerContextType);
        if (ctx == null || ctx.isRemoved()) {
            throw new ChannelHandlerContextNotFoundException();
        }
        return ctx;
    }
}

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From source file:org.opendaylight.sxp.core.SxpConnection.java

License:Open Source License

/**
 * @param channelHandlerContextType Type of ChannelHandlerContext
 * @return If ChannelHandlerContext is actively used
 *///from  w  w w  .ja va 2 s  .c o  m
public boolean hasChannelHandlerContext(ChannelHandlerContextType channelHandlerContextType) {
    synchronized (ctxs) {
        ChannelHandlerContext ctx = ctxs.get(channelHandlerContextType);
        if (ctx == null || ctx.isRemoved()) {
            return false;
        }
        return true;
    }
}

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From source file:org.opendaylight.sxp.core.SxpConnectionTest.java

License:Open Source License

@Test
public void testIsStateOn() throws Exception {
    assertTrue(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.ListenerContext));
    assertTrue(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.SpeakerContext));

    sxpConnection.setStateOff();/*from  www .  j  ava 2 s .  c o  m*/
    assertFalse(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.ListenerContext));
    assertFalse(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.SpeakerContext));

    sxpConnection = SxpConnection.create(sxpNode, mockConnection(ConnectionMode.Both, ConnectionState.On),
            DOMAIN_NAME);

    ChannelHandlerContext context = mock(ChannelHandlerContext.class);
    when(context.isRemoved()).thenReturn(false);
    sxpConnection.markChannelHandlerContext(context, SxpConnection.ChannelHandlerContextType.ListenerContext);
    assertTrue(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.ListenerContext));

    context = mock(ChannelHandlerContext.class);
    when(context.isRemoved()).thenReturn(true);
    sxpConnection.markChannelHandlerContext(context, SxpConnection.ChannelHandlerContextType.SpeakerContext);
    assertFalse(sxpConnection.isStateOn(SxpConnection.ChannelHandlerContextType.SpeakerContext));
}

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