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SDN开发笔记:md-sal应用程序开发

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环境:ubuntu14.04,控制器:distribution-karaf-0.3.3-Lithium-SR3?? jdk:1.8? maven:3.5.2


1 获取OpenDaylightsettings.xml文件的简单方法:执行如下命令


cp -n ~/.m2/settings.xml{,.orig} ; wget -q-O -https://raw.githubusercontent.com/opendaylight/odlparent/stable/boron/settings.xml> ~/.m2/settings.xml


2 使用 Maven和一个叫做opendaylight-startup-archetype的原型创建一个模版工程。如果你第一次创建该工程,需要花费一些时间从远程仓库下载。


mvn archetype:generate-DarchetypeGroupId=org.opendaylight.controller-DarchetypeArtifactId=opendaylight-startup-archetype-DarchetypeRepository=https://nexus.opendaylight.org/content/repositories/public/-DarchetypeVersion=1.0.3-Lithium-SR3


3 按如下修改属性值,输入y进行骨架创建:







4生成hello文件夹,输入mvn clean install进行编译(编译过程较缓慢,请耐心等待)




这个hello文件夹的内容如下,表示一个hello的模块的骨架相关文件




5编译成功




6之后进入hellokaraf argetassemblyin,找到karaf,运行karaf启动控制器。





7 实现hello-world:


7.1?进入hello/api/src/main/yang目录,按照下面修改hello.yang,增加hello-world这个rpc:




module hello {
yang-version 1;
namespace “urn:opendaylight:params:xml:ns:yang:helloworld”;
prefix “helloworld”;
revision “2015-01-05” {
description “Initial revision of helloworld model”;
}
rpc hello-world {
input {
leaf name {
type string;
}
}
output {
leaf greating {
type string;
}
}
}
}
返回到hello/api,编译api:





cd ../../../




mvn clean install





7.2 ?
实现HelloWorld RPC接口


进入目录hello/impl/src/main/java/org/opendaylight/hello/impl,创建一个新的文件HelloWorldImpl.java:


package org.opendaylight.hello.impl;
import java.util.concurrent.Future;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.hello.rev150105.HelloService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.hello.rev150105.HelloWorldInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.hello.rev150105.HelloWorldOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.hello.rev150105.HelloWorldOutputBuilder;
import org.opendaylight.yangtools.yang.common.RpcResult;
import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
public class HelloWorldImpl implements HelloService {
@Override
public Future> helloWorld(HelloWorldInput input) {
HelloWorldOutputBuilder helloBuilder = new HelloWorldOutputBuilder();
helloBuilder.setGreating("Hello " + input.getName());
return RpcResultBuilder.success(helloBuilder.build()).buildFuture();
}
}

7.3.在当前目录中找到HelloProvider.java文件. 在该文件中注册你在hello.yang中定义的RPC。你可以按如下编辑该文件或者用下面的代码替换该文件。




/*
* Copyright(c) Yoyodyne, Inc. and others. All rights reserved.
* * This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.hello.impl;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RpcRegistration;
import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.hello.rev150105.HelloService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HelloProvider implements BindingAwareProvider, AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(HelloProvider.class);
private RpcRegistration helloService;
@Override
public void onSessionInitiated(ProviderContext session) {
LOG.info("HelloProvider Session Initiated");
helloService = session.addRpcImplementation(HelloService.class, new HelloWorldImpl());
}
@Override
public void close() throws Exception {
LOG.info("HelloProvider Closed");
if (helloService != null) {
helloService.close();
}
}
}


7.4 编译注册新RPC功能的java类。检查编写 HelloProvider.java和HelloWorldImpl.java是否正确




7.5 返回顶级目录,编译整个hello




7.6可在~/.m2/repository/org/opendaylight/hello2中找到编译好的文件:



7.7将hello集成到ODL发行版,我采用的发行版为OpenDaylight Lithium SR3,解压后进入目录,可以看到其中包含system子目录,该目录即为发行版所用的仓库(Repository)。进入system目录,创建子目录org/opendaylight/hello:



7.8 进入hello,复制~/.m2中相应内容,得到结果为:



7.9将hello集成到ODL发行版:添加仓库启动发行版的karaf,先安装odl-mdsal-clustering,再装odl-restconf,odldlux-all



7.10添加hello仓库,执行,且查看添加情况,执行安装:



7.11测试:登录页面http://localhost:8181/index.html,可在YANG UI/API中找到相应的功能,进行测试。
用户名和密码都是admin,找到hello,里面的helloworld:




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