我正在写一些coge-gen maven-plugin。将maven-build-classpath添加到插件执行类路径
我需要将我的项目classpath注入到我的插件执行类路径中。我发现这article。那里的解决方案很有效,但时间很长。也许你们有人知道一个开箱即用的解决方案。
我正在写一些coge-gen maven-plugin。将maven-build-classpath添加到插件执行类路径
我需要将我的项目classpath注入到我的插件执行类路径中。我发现这article。那里的解决方案很有效,但时间很长。也许你们有人知道一个开箱即用的解决方案。
找到了answer!
好的,帕斯卡是对的,这里是基础!
所以这里是最干净的方式(据我所知)将编译类路径添加到您的插件的执行。
下面是我的code-gen插件的一些代码示例,它实际上是基于编译的代码生成一些模板代码。所以我首先需要编译代码,然后进行分析,生成一些代码,然后再次编译。
使用@configurator
在魔类:
/**
* @goal generate
* @phase process-classes
* @configurator include-project-dependencies
* @requiresDependencyResolution compile+runtime
*/
public class CodeGenMojo
extends AbstractMojo
{
public void execute()
throws MojoExecutionException
{
// do work....
}
}
请注意在Javadoc头的@configurator
线,它是essetial为丛IOC容器不只是一个注释行。
执行include-project-dependencies
配置程序。我从Brian Jackson那里拿到了这个非常好的课程,并将它添加到你的插件的源代码中。
/**
* A custom ComponentConfigurator which adds the project's runtime classpath elements
* to the
*
* @author Brian Jackson
* @since Aug 1, 2008 3:04:17 PM
*
* @plexus.component role="org.codehaus.plexus.component.configurator.ComponentConfigurator"
* role-hint="include-project-dependencies"
* @plexus.requirement role="org.codehaus.plexus.component.configurator.converters.lookup.ConverterLookup"
* role-hint="default"
*/
public class IncludeProjectDependenciesComponentConfigurator extends AbstractComponentConfigurator {
private static final Logger LOGGER = Logger.getLogger(IncludeProjectDependenciesComponentConfigurator.class);
public void configureComponent(Object component, PlexusConfiguration configuration,
ExpressionEvaluator expressionEvaluator, ClassRealm containerRealm,
ConfigurationListener listener)
throws ComponentConfigurationException {
addProjectDependenciesToClassRealm(expressionEvaluator, containerRealm);
converterLookup.registerConverter(new ClassRealmConverter(containerRealm));
ObjectWithFieldsConverter converter = new ObjectWithFieldsConverter();
converter.processConfiguration(converterLookup, component, containerRealm.getClassLoader(), configuration,
expressionEvaluator, listener);
}
private void addProjectDependenciesToClassRealm(ExpressionEvaluator expressionEvaluator, ClassRealm containerRealm) throws ComponentConfigurationException {
List<String> runtimeClasspathElements;
try {
//noinspection unchecked
runtimeClasspathElements = (List<String>) expressionEvaluator.evaluate("${project.runtimeClasspathElements}");
} catch (ExpressionEvaluationException e) {
throw new ComponentConfigurationException("There was a problem evaluating: ${project.runtimeClasspathElements}", e);
}
// Add the project dependencies to the ClassRealm
final URL[] urls = buildURLs(runtimeClasspathElements);
for (URL url : urls) {
containerRealm.addConstituent(url);
}
}
private URL[] buildURLs(List<String> runtimeClasspathElements) throws ComponentConfigurationException {
// Add the projects classes and dependencies
List<URL> urls = new ArrayList<URL>(runtimeClasspathElements.size());
for (String element : runtimeClasspathElements) {
try {
final URL url = new File(element).toURI().toURL();
urls.add(url);
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Added to project class loader: " + url);
}
} catch (MalformedURLException e) {
throw new ComponentConfigurationException("Unable to access project dependency: " + element, e);
}
}
// Add the plugin's dependencies (so Trove stuff works if Trove isn't on
return urls.toArray(new URL[urls.size()]);
}
}
这是我的插件的构建部分,你将不得不添加。
<modelVersion>4.0.0</modelVersion>
<groupId>com.delver</groupId>
<artifactId>reference-gen-plugin</artifactId>
<name>Reference Code Genration Maven Plugin</name>
<packaging>maven-plugin</packaging>
<version>1.2</version>
<url>http://maven.apache.org</url>
<properties>
<maven.version>2.2.1</maven.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>descriptor</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-artifact</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-project</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-model</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>2.0.9</version>
</dependency>
</dependencies>
这里是插件的这些谁需要它的pom.xml。现在应该编译没有问题。 (有毛病的头,所以忽略它)
遵循此链接....做了非常类似的事情,我的代码...我创建我有完全使用Maven的装修插件 相同的pom.xml为我的插件,重新使用IncludeProjectDependenciesComponentConfigurator
我使用maven 2.2。0 如果它可以帮助,这里的POM再次
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.worldcorpservices.plugins</groupId>
<artifactId>maven-fit-plugin</artifactId>
<packaging>maven-plugin</packaging>
<version>1.0-SNAPSHOT</version>
<name>maven-fit-plugin Maven Mojo</name>
<url>http://maven.apache.org</url>
<properties>
<fitlibrary.version>2.0</fitlibrary.version>
<maven.version>2.2.0</maven.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.fitnesse</groupId>
<artifactId>fitlibrary</artifactId>
<version>${fitlibrary.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.12</version>
</dependency>
<dependency>
<groupId>poi</groupId>
<artifactId>poi</artifactId>
<version>3.7-20101029</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-artifact</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-project</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-model</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>2.0.9</version>
</dependency>
</dependencies>
<build>
希望这有助于
RGDS 马尔科
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>descriptor</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
我采取这种做法,显然它的工作:
1 - MavenProject参数是nee DED你的Mojo类中:
@Parameter(defaultValue = "${project}", required = true, readonly = true)
private MavenProject project;
2 - 然后你可以从工程实例的路径元素:
try {
Set<URL> urls = new HashSet<>();
List<String> elements = project.getTestClasspathElements();
//getRuntimeClasspathElements()
//getCompileClasspathElements()
//getSystemClasspathElements()
for (String element : elements) {
urls.add(new File(element).toURI().toURL());
}
ClassLoader contextClassLoader = URLClassLoader.newInstance(
urls.toArray(new URL[0]),
Thread.currentThread().getContextClassLoader());
Thread.currentThread().setContextClassLoader(contextClassLoader);
} catch (DependencyResolutionRequiredException e) {
throw new RuntimeException(e);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
+1。除了通过'MavenProject'字段访问类路径元素外,还可以要求元素立即被注入,例如, '@Parameter(property =“project.compileClasspathElements”,required = true,readonly = true)private列表
如果您正在使用'org.reflections.Reflections'来扫描类,您需要使用新实例化'Reflections':new ConfigurationBuilder()。setUrls(ClasspathHelper.forClassLoader(contextClassLoader))' – CorayThan 2015-01-19 06:03:25
+1没错,就是去AFAIK的方式。尽管解释或总结答案中的链接会很好。这将大大提高你的问题的价值和你的答案为读者恕我直言。 – 2010-04-17 17:49:17
这也是我需要的解决方案 - 虽然我无法编译它。 我想我有一些类的错误版本。 我不知道你是否可以将你的pom.xml的相关部分添加到你的答案中。 – 2010-04-21 16:18:36
要使'project.runtimeClasspathElements'包含所有传递依赖项,您需要使用['@ requiresDependencyResolution'](http://maven.apache.org/developers/mojo-api-specification.html#The_Descriptor_and_Annotations)对注释进行注释。 – 2012-07-11 14:28:13