Java ExceptionEvent类代码示例

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
    throws Exception {
  Channel ch = e.getChannel();
  Throwable cause = e.getCause();
  if (cause instanceof TooLongFrameException) {
    sendError(ctx, BAD_REQUEST);
    return;
  } else if (cause instanceof IOException) {
    if (cause instanceof ClosedChannelException) {
      LOG.debug("Ignoring closed channel error", cause);
      return;
    }
    String message = String.valueOf(cause.getMessage());
    if (IGNORABLE_ERROR_MESSAGE.matcher(message).matches()) {
      LOG.debug("Ignoring client socket close", cause);
      return;
    }
  }

  LOG.error("Shuffle error: ", cause);
  if (ch.isConnected()) {
    LOG.error("Shuffle error " + e);
    sendError(ctx, INTERNAL_SERVER_ERROR);
  }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent
        e) throws Exception {
    log.debug("[exceptionCaught]: " + e.toString());
    if (e.getCause() instanceof ReadTimeoutException) {
        log.debug("Disconnecting device {} due to read timeout", e.getChannel().getRemoteAddress());
        return;
    } else if (e.getCause() instanceof ClosedChannelException) {
        log.debug("Channel for OSPF {} already closed", e.getChannel().getRemoteAddress());
    } else if (e.getCause() instanceof IOException) {
        log.debug("Disconnecting OSPF {} due to IO Error: {}", e.getChannel().getRemoteAddress(),
                  e.getCause().getMessage());
    } else if (e.getCause() instanceof OspfParseException) {
        OspfParseException errMsg = (OspfParseException) e.getCause();
        byte errorCode = errMsg.errorCode();
        byte errorSubCode = errMsg.errorSubCode();
        log.debug("Error while parsing message from OSPF {}, ErrorCode {}",
                  e.getChannel().getRemoteAddress(), errorCode);
    } else if (e.getCause() instanceof RejectedExecutionException) {
        log.debug("Could not process message: queue full");
    } else {
        log.debug("Error while processing message from OSPF {}, {}",
                  e.getChannel().getRemoteAddress(), e.getCause().getMessage());
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
    if (e.getCause() instanceof ReadTimeoutException) {
        log.debug("Disconnecting device {} due to read timeout", e.getChannel().getRemoteAddress());
        return;
    } else if (e.getCause() instanceof ClosedChannelException) {
        log.debug("Channel for ISIS {} already closed", e.getChannel().getRemoteAddress());
    } else if (e.getCause() instanceof IOException) {
        log.debug("Disconnecting ISIS {} due to IO Error: {}", e.getChannel().getRemoteAddress(),
                  e.getCause().getMessage());
    } else if (e.getCause() instanceof IsisParseException) {
        IsisParseException errMsg = (IsisParseException) e.getCause();
        byte errorCode = errMsg.errorCode();
        byte errorSubCode = errMsg.errorSubCode();
        log.debug("Error while parsing message from ISIS {}, ErrorCode {}",
                  e.getChannel().getRemoteAddress(), errorCode);
    } else if (e.getCause() instanceof RejectedExecutionException) {
        log.debug("Could not process message: queue full");
    } else {
        log.debug("Error while processing message from ISIS {}, {}",
                  e.getChannel().getRemoteAddress(), e.getCause().getMessage());
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
		throws Exception {
	System.out.println("Server Exception Caught");
	e.getCause().printStackTrace();

	/**
	 * Very important to respond here.
	 * The agent will always be listening for some kind of feedback.
	 */
	ChannelBuffer buffer = ChannelBuffers.dynamicBuffer();
	buffer.writeInt(500);

	ChannelFuture future = e.getChannel().write(buffer);

	future.addListener(ChannelFutureListener.CLOSE);

}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
/**
 * Called by netty when an exception happens in one of the netty threads
 * (mostly due to what we do in the netty threads)
 */
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
    Throwable t = e.getCause();
    if (t instanceof CorruptedFrameException || t instanceof TooLongFrameException) {
        LOG.error("Corrupted fram recieved from bookie: " + e.getChannel().getRemoteAddress());
        return;
    }
    if (t instanceof IOException) {
        // these are thrown when a bookie fails, logging them just pollutes
        // the logs (the failure is logged from the listeners on the write
        // operation), so I'll just ignore it here.
        return;
    }

    LOG.fatal("Unexpected exception caught by bookie client channel handler", t);
    // Since we are a library, cant terminate App here, can we?
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
//		logger.error("exceptionCaught", e.getCause());
		if (e.getCause() instanceof ReadTimeoutException) {
			if (logger.isTraceEnabled()) {
				logger.trace("Connection timeout [{}]", ctx.getChannel().getRemoteAddress());
			}
			ctx.getChannel().close();
		} else {
			if (!isLoaded) {
				// ignore
				return;
			}
			if (!NetworkExceptionHelper.isCloseConnectionException(e.getCause())) {
//				logger.warn("Caught exception while handling client http traffic, closing connection {}", e.getCause(), ctx.getChannel());
				ctx.getChannel().close();
			} else {
//				logger.debug("Caught exception while handling client http traffic, closing connection {}", e.getCause(), ctx.getChannel());
				ctx.getChannel().close();
			}
		}
		
	}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
		throws Exception {
	Throwable te = e.getCause();
	if (te instanceof java.io.IOException) {// 网络异常，也有可能是soLinger参数引起
		return;
	}
	logger.error("Unexpected exception from downstream.{}", e.getCause());
	Channel c = e.getChannel();
	try {
		if (c.isWritable()) {
			RpcResponse res = new RpcResponse();
			res.setReturnFlag(RpcConst.ERR_CODE_SERVER_CHANNEL_EXCEPTION);
			res.setReturnMsg(logger.getStackTraceInfo(e.getCause()));
			c.write(res);
		}
	} finally {
		c.close();
	}
	// super.exceptionCaught(ctx, e);
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
    HttpContext<R, T> httpContext = httpContextMap.get(ctx.getChannel());
    try {
        if (httpContext != null && httpContext.getListener() != null) {
            httpContext.getListener().onFailure(e.getCause());
        } else {
            Throwable t = e.getCause();
            logger.error(t.getMessage(), t);
        }
    } finally {
        ctx.getChannel().close();
        httpContextMap.remove(ctx.getChannel());
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
    Throwable cause = e.getCause();

    // do not print exception if it is BindException.
    // we are trying to search available port below 1024. It is not good to
    // print a flood
    // of error logs during the searching.
    if (cause instanceof java.net.BindException) {
        return;
    }

    LOG.error("Exception on connection to " + getRemoteAddress(), e.getCause());

    // close the channel unless we are connecting and it is
    // NotYetConnectedException
    if (!((cause instanceof NotYetConnectedException)
            && _connection.getConnectionState().equals(Connection.State.CONNECTING))) {
        ctx.getChannel().close();
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
    throws Exception {
  Channel ch = e.getChannel();
  Throwable cause = e.getCause();
  if (cause instanceof TooLongFrameException) {
    sendError(ctx, BAD_REQUEST);
    return;
  }

  LOG.error("Shuffle error: ", cause);
  shuffleMetrics.failedOutput();
  if (ch.isConnected()) {
    LOG.error("Shuffle error " + e);
    sendError(ctx, INTERNAL_SERVER_ERROR);
  }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
    
    if(!hasCaughtException){
        hasCaughtException=true;
        e.getChannel().close();
        String errMsg = e.getCause().getLocalizedMessage();
        logger.debug("TCP Handler exceptionCaught: {} . ", errMsg);
        
        int statusCodeInt = 1;
        String statusCode = statusCodeInt + " FAILURE";
        
        tcpWorker.onComplete(tcpWorker.responseSb.toString(), true, 
                errMsg, errMsg, statusCode, statusCodeInt);
        
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {

    if (!hasCaughtException) {
        hasCaughtException = true;

        String errMsg = e.getCause().toString();
        logger.debug("UDP Handler exceptionCaught: {} . ", errMsg);
        e.getChannel().close();

        int statusCodeInt = 1;
        String statusCode = statusCodeInt + " FAILURE";

        udpWorker.onComplete(udpWorker.responseSb.toString(), true,
                errMsg, errMsg, statusCode, statusCodeInt);
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
    public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
        Throwable cause = e.getCause();
        if (state.getState() == State.INIT_RECONNECT) {
            // removed stackTrace when reconnect. so many logs.
            logger.info("exceptionCaught() reconnect failed. state:{} {} Caused:{}", state.getString(), e.getChannel(), cause.getMessage());
        } else {
            logger.warn("exceptionCaught() UnexpectedError happened. state:{} {} Caused:{}", state.getString(), e.getChannel(), cause.getMessage(), cause);
        }
        // need to handle a error more precisely.
        // below code dose not reconnect when node on channel is just hang up or dead without specific reasons.

//        state.setClosed();
//        Channel channel = e.getChannel();
//        if (channel.isConnected()) {
//            channel.close();
//        }

    }
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
    Throwable t = e.getCause();

    if (this.channelHandler != null) {
        this.channelHandler.onError(this.createContext(t));
    }

    e.getChannel().close();

    if (t instanceof IOException) {
        this.ioErrorLogger.error(Text.ERROR_AT_SERVER, t);
    } else {
        this.logger.error(Text.ERROR_AT_SERVER, t);
    }
}
 

import org.jboss.netty.channel.ExceptionEvent; //导入依赖的package包/类
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
	Channel channel = ctx.getChannel();

	logger.error(
		"[channel exception] {} \n"
			+
			"[channel status] channelIsOpen={}, channelIsBound={}, channelIsWriteable={}, channelIsReadable={}, channelIsConnected={} \n"
			+
			"[stacktrace] {}",
		e,
		channel.isOpen(), channel.isBound(), channel.isWritable(), channel.isReadable(), channel.isConnected(),
		Utils.stackTraceToStr(e.getCause())
		);

	if (ctx.getChannel().isOpen()) {
		ctx.getChannel().close();
	}
}