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Robin Gong 40228411d7 feat(example-mqtt): new MQTT heartBeat broker and client examples (#9336)
Motivation:

Recently I'm going to build MQTT broker and client based on Netty. I had MQTT encoder and decoder founded, while no basic examples. So I'm going to share my simple heartBeat MQTT broker and client as an example.

Modification:

New MQTT heartBeat example under io.netty.example/mqtt/heartBeat/.

Result:

Client would send CONNECT and PINGREQ(heartBeat message).
  - CONNECT: once channel active
  - PINGREQ: once IdleStateEvent triggered, which is 20 seconds in this example
Client would discard all messages it received.
MQTT broker could handle CONNECT, PINGREQ and DISCONNECT messages.
  - CONNECT: send CONNACK back
  - PINGREQ: send PINGRESP back
  - DISCONNECT: close the channel
Broker would close the channel if 2 heartBeat lost, which set to 45 seconds in this example.
2019-07-10 12:20:12 +02:00
.github Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
.mvn support publishing snapshots from docker based ci (#8634) 2018-12-07 06:16:39 +01:00
all Always include classes from all native transports no matter on which platfrom netty-all is build (#9111) 2019-04-30 23:24:14 +02:00
bom Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
buffer Correctly take length of ByteBufInputStream into account for readLine… (#9310) 2019-07-01 20:55:47 +02:00
codec Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
codec-dns Pre-decompressed DNS record RData that may contain compression pointers (#9311) 2019-07-02 19:39:21 +02:00
codec-haproxy HAProxyMessageDecoder not correctly handle delimiter in all cases (#9282) 2019-06-27 21:59:09 +02:00
codec-http Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
codec-http2 Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
codec-memcache codec-memcache: copy metadata in binary full request response (#9160) 2019-05-22 11:06:16 +02:00
codec-mqtt MqttConnectPayload.toString() should use Arrays.toString() instead of [].toString() (#9292) 2019-06-27 21:55:28 +02:00
codec-redis migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-smtp SmtpRequestEncoderTest ByteBuf leak (#9075) 2019-04-19 08:47:28 +02:00
codec-socks migrate java8: use requireNonNull (#8840) 2019-02-04 10:32:25 +01:00
codec-stomp use checkPositive/checkPositiveOrZero (#8835) 2019-02-04 15:55:07 +01:00
codec-xml Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
common Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
dev-tools Update version number to start working on Netty 5 2018-11-20 15:49:57 +01:00
docker Remove deprecated GraalVM native-image flags (#9118) 2019-05-22 19:22:03 +02:00
example feat(example-mqtt): new MQTT heartBeat broker and client examples (#9336) 2019-07-10 12:20:12 +02:00
handler Introduce SslMasterKeyHandler (#8653) 2019-07-10 12:16:56 +02:00
handler-proxy Remove code that accounts for changing EventExecutors in DefaultPromise (#8996) 2019-04-03 10:36:55 +02:00
license Use Table lookup for HPACK decoder (#9307) 2019-07-02 20:13:19 +02:00
microbench Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
resolver Close delegate resolver from RoundRobinInetAddressResolver (#9214) 2019-06-04 05:14:28 -07:00
resolver-dns Fix flaky DnsNameResolverTest.testTruncatedWithTcpFallback (#9262) 2019-06-21 09:29:15 +02:00
tarball Update version number to start working on Netty 5 2018-11-20 15:49:57 +01:00
testsuite Add support for loopbackmode and accessing the configured interface when using epoll native transport with multicast (#9218) 2019-06-07 13:45:45 -07:00
testsuite-autobahn Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
testsuite-http2 Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
testsuite-native-image remove unused imports (#9287) 2019-06-26 21:16:16 +02:00
testsuite-osgi Adjust testsuite-osgi to resolve bundles from local build (#8944) 2019-03-18 09:56:08 +01:00
testsuite-shading Use maven plugin to prevent API/ABI breakage as part of build process (#8904) 2019-03-01 19:48:29 +01:00
transport Motivation: 2019-07-01 20:48:01 +02:00
transport-native-epoll Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
transport-native-kqueue Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
transport-native-unix-common Added UDP multicast (with caveats: getInterface, getNetworkInterface, block or loopback-mode-disabled operations). 2019-05-25 10:06:13 +02:00
transport-native-unix-common-tests Merge ChannelInboundHandler and ChannelOutboundHandler into ChannelHa… (#8957) 2019-03-28 09:28:27 +00:00
transport-sctp Deprecate ChannelInboundHandlerAdapter and ChannelOutboundHandlerAdapter (#8929) 2019-03-13 09:46:10 +01:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add .gitignore for docker-sync stuff 2019-03-19 14:04:21 +01:00
CONTRIBUTING.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
pom.xml Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
README.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
run-example.sh Drop SPDY support (#8845) 2019-02-07 09:25:31 +01:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.