本文主要是介绍opendaylight（Li） l2switch 源代码分析（2）--parent，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本文主要介绍l2switch中的parent工程，该工程定义了运行L2switch所使用的依赖模块以及版本等。该工程下只有一个pom.xml文件，下面对该文件中的主要内容进行说明:
1.
<parent>
<groupId>org.opendaylight.odlparent</groupId>
<artifactId>odlparent</artifactId>
<version>1.7.0-SNAPSHOT</version>
<relativePath/>
</parent>
该工程继承了工程“org.opendaylight.odlparent”，这个工程在l2 switch中不存在，查看opendaylight
的github（https://github.com/opendaylight/odlparent），确实有一个odlparent工程，查看该工程
的pom.xml:
<parent>
<groupId>org.opendaylight.odlparent</groupId>
<artifactId>odlparent-lite</artifactId>
<version>1.7.0-SNAPSHOT</version>
<relativePath>odlparent-lite</relativePath>
</parent>
貌似odlparent还继承于odlparent-lite，在odlparent工程目录下找到了odlparent-lite文件下的pom.xml，
貌似该pom.xml不再继承于其他的工程，应该找到源头了。
后面会介绍到其他的工程，如packethandler、loopremover等，它们的pom.xml都会继承于parent工程，即在
这些工程的pom.xml下面都有一下内容：
<parent>
<groupId>org.opendaylight.l2switch</groupId>
<artifactId>l2switch-parent</artifactId>
<version>0.4.0-SNAPSHOT</version>
<relativePath>../parent</relativePath>
</parent>
2.
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.opendaylight.yangtools</groupId>
<artifactId>yangtools-artifacts</artifactId>
<version>${yangtools.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.mdsal</groupId>
<artifactId>mdsal-artifacts</artifactId>
<version>2.1.0-SNAPSHOT</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.mdsal.model</groupId>
<artifactId>mdsal-model-artifacts</artifactId>
<version>0.9.0-SNAPSHOT</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.controller</groupId>
<artifactId>config-artifacts</artifactId>
<version>${config.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.controller</groupId>
<artifactId>mdsal-artifacts</artifactId>
<version>${mdsal.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.openflowplugin</groupId>
<artifactId>openflowplugin-artifacts</artifactId>
<version>${openflow.plugin.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.l2switch</groupId>
<artifactId>l2switch-artifacts</artifactId>
<version>${project.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.opendaylight.controller.thirdparty</groupId>
<artifactId>net.sf.jung2</artifactId>
<version>${jung2.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
这边定义了l2switch需要依赖的工程：yangtools，mdsal，controller，openflowplugin，jung2......
子pom会继承父pom中配置的所有依赖，子pom中只需配置自己特需的依赖就行了。
3.
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compile.plugin.version}</version>
<configuration>
<source>${java.version.source}</source>
<target>${java.version.target}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>${checkstyle.version}</version>
<configuration>
<failsOnError>true</failsOnError>
<configLocation>controller/checkstyle.xml</configLocation>
<consoleOutput>true</consoleOutput>
<includeTestSourceDirectory>true</includeTestSourceDirectory>
<sourceDirectory>${project.basedir}</sourceDirectory>
<includes>**\/*.java,**\/*.yang,**\/*.xml,**\/*.ini,**\/*.sh,**\/*.bat</includes>
<excludes>**\/target\/,**\/bin\/,**\/target-ide\/,\/,**\/xtend-gen\/,**\/yang-gen-code\/,**\/${codeGeneratorPath}\/,**\/${configCodeGeneratorPath}\/,</excludes>
</configuration>
<dependencies>
<dependency>
<groupId>org.opendaylight.controller</groupId>
<artifactId>checkstyle</artifactId>
<version>0.3.0-SNAPSHOT</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>check</id>
<goals>
<goal>check</goal>
</goals>
<phase>process-sources</phase>
</execution>
</executions>
</plugin>
<!-- tells eclipse to import these folders into the package explorer as "source" folders
which allows eclipse to resolve the classes correctly during an eclipse build -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.8</version>
<executions>
<execution>
<id>add-source</id>
<goals>
<goal>add-source</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<sources>
<source>src/main/yang</source>
<source>${codeGeneratorPath}</source>
<source>${configCodeGeneratorPath}</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<!-- cleans up auto generated code -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<configuration>
<filesets>
<fileset>
<directory>${codeGeneratorPath}</directory>
<directory>${configCodeGeneratorPath}</directory>
<includes>
<include>**</include>
</includes>
</fileset>
</filesets>
</configuration>
</plugin>
<!-- Ignore/Execute plugin execution -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.codehaus.mojo</groupId>
<artifactId>properties-maven-plugin</artifactId>
<versionRange>[0.0,)</versionRange>
<goals>
<goal>set-system-properties</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<versionRange>[0.0,)</versionRange>
<goals>
<goal>prepare-agent</goal>
<goal>pre-test</goal>
<goal>post-test</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>maven-paxexam-plugin</artifactId>
<versionRange>[1.2.4,)</versionRange>
<goals>
<goal>generate-depends-file</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute>
<runOnIncremental>false</runOnIncremental>
</execute>
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<versionRange>[2.0,)</versionRange>
<goals>
<goal>check</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.opendaylight.yangtools</groupId>
<artifactId>yang-maven-plugin</artifactId>
<versionRange>[0.5,)</versionRange>
<goals>
<goal>generate-sources</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.codehaus.groovy.maven</groupId>
<artifactId>gmaven-plugin</artifactId>
<versionRange>1.0</versionRange>
<goals>
<goal>execute</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<versionRange>${enforcer.version}</versionRange>
<goals>
<goal>enforce</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
</plugin>
</plugins>
</build>
这一段定义了在编译时用到的插件。
这篇关于opendaylight（Li） l2switch 源代码分析（2）--parent的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
