package io.protostuff.compiler.maven; import java.io.File; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.List; import org.codehaus.plexus.classworlds.realm.ClassRealm; import org.codehaus.plexus.component.annotations.Component; import org.codehaus.plexus.component.configurator.AbstractComponentConfigurator; import org.codehaus.plexus.component.configurator.ComponentConfigurationException; import org.codehaus.plexus.component.configurator.ComponentConfigurator; import org.codehaus.plexus.component.configurator.ConfigurationListener; import org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter; import org.codehaus.plexus.component.configurator.converters.special.ClassRealmConverter; import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException; import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator; import org.codehaus.plexus.configuration.PlexusConfiguration; /** * A custom ComponentConfigurator which adds the project's runtime classpath elements to the classpath * <p> * Source: http://mail-archives.apache.org/mod_mbox/maven-users/200808.mbox/%[email protected]%3E * * @author Brian Jackson (original implementation) * @author Konstantin Shchepanovskyi (fixed issues with Java 8 javadoc tool) */ @Component(role = ComponentConfigurator.class, hint = "include-project-dependencies") public class IncludeProjectDependenciesComponentConfigurator extends AbstractComponentConfigurator { @Override public void configureComponent(Object component, PlexusConfiguration configuration, ExpressionEvaluator evaluator, ClassRealm realm, ConfigurationListener listener) throws ComponentConfigurationException { addProjectDependenciesToClassRealm(evaluator, realm); converterLookup.registerConverter(new ClassRealmConverter(realm)); ObjectWithFieldsConverter converter = new ObjectWithFieldsConverter(); converter.processConfiguration(converterLookup, component, realm.getParentClassLoader(), configuration, evaluator, listener); } private void addProjectDependenciesToClassRealm(ExpressionEvaluator expressionEvaluator, ClassRealm realm) 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) { realm.addURL(url); } } private URL[] buildUrls(List<String> runtimeClasspathElements) throws ComponentConfigurationException { // Add the projects classes and dependencies List<URL> urls = new ArrayList<>(runtimeClasspathElements.size()); for (String element : runtimeClasspathElements) { try { final URL url = new File(element).toURI().toURL(); urls.add(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()]); } }