private void sendHttpResponse(Channel channel, HttpRequest request, HttpResponse response) {
if (!channel.isOpen()) {
return;
}
// response的内容已在各Listener中填充
response.headers().set(Names.CONTENT_LENGTH, response.getContent().readableBytes());
response.headers().set(Names.SERVER, "NAVI/1.1.4(UNIX)");
if (!HttpHeaders.isKeepAlive(request)
|| response.getStatus() != HttpResponseStatus.OK
|| ServerConfigure.isChannelClose()) {
response.headers().set(Names.CONNECTION, "close");
channel.setAttachment(WRITING);
ChannelFuture f = channel.write(response);
f.addListener(ChannelFutureListener.CLOSE);
f.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture f) throws Exception {
if (!f.isSuccess()) {
log.error(f.getCause().getMessage(), f.getCause());
}
}
});
} else {
if (request.getProtocolVersion() == HttpVersion.HTTP_1_0) {
response.headers().add(Names.CONNECTION, "Keep-Alive");
}
channel.setAttachment(WRITING);
ChannelFuture f = channel.write(response);
f.addListener(ChannelFutureListener.CLOSE_ON_FAILURE);
f.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture f) throws Exception {
if (!f.isSuccess()) {
log.error(f.getCause().getMessage(), f.getCause());
}
}
});
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
Channel channel = ctx.getChannel();
if (channel.getAttachment() != null
&& (Error.class.isAssignableFrom(channel.getAttachment().getClass())
|| WRITING.equals(channel.getAttachment().toString()))) {
return;
}
if (!isReceived(ctx)) {
return;
}
try {
log.error(e.getCause().getMessage(), e.getCause());
channel.setAttachment(new Error());
DefaultHttpResponse response =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR);
response.setContent(
ChannelBuffers.copiedBuffer(
response.getStatus().toString() + ":" + e.getCause().getMessage(),
CharsetUtil.UTF_8));
response.headers().set(Names.CONTENT_LENGTH, response.getContent().readableBytes());
response.headers().set(Names.SERVER, "NAVI/1.1.4(UNIX)");
response.headers().set(Names.CONNECTION, "close");
ChannelFuture f = channel.write(response);
f.addListener(ChannelFutureListener.CLOSE);
f.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture f) throws Exception {
if (!f.isSuccess()) {
log.error(f.getCause().getMessage(), f.getCause());
}
}
});
} catch (Exception ex) {
log.error(e.getCause().getMessage(), e.getCause());
e.getFuture().addListener(ChannelFutureListener.CLOSE);
}
}