/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.kie.maven.plugin;
import org.codehaus.classworlds.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;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.logging.console.ConsoleLogger;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
/**
* A custom ComponentConfigurator which adds the project's runtime classpath elements
* to the
*/
@Component(role=ComponentConfigurator.class, hint="include-project-dependencies")
public class IncludeProjectDependenciesComponentConfigurator extends AbstractComponentConfigurator {
private static final Logger LOGGER = new ConsoleLogger(Logger.LEVEL_DEBUG, "Configurator");
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()]);
}
}