/*******************************************************************************
* Copyright (c) 2008 Sonatype, Inc.
* 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.eclipse.m2e.wtp;
import java.util.Collections;
import java.util.Set;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.lifecycle.internal.DependencyContext;
import org.apache.maven.lifecycle.internal.MojoExecutor;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.m2e.core.MavenPlugin;
import org.eclipse.m2e.core.internal.IMavenConstants;
import org.eclipse.m2e.core.internal.embedder.MavenImpl;
import org.eclipse.m2e.core.project.IMavenProjectFacade;
import org.eclipse.m2e.core.project.IMavenProjectRegistry;
import org.eclipse.m2e.wtp.internal.Messages;
/**
* Helper for {@link MavenSession} manipulations.
*
* @provisional This class has been added as part of a work in progress.
* It is not guaranteed to work or remain the same in future releases.
* For more information contact <a href="mailto:m2e-wtp-dev@eclipse.org">m2e-wtp-dev@eclipse.org</a>.
*
* @author Fred Bricon
*/
public class MavenSessionHelper {
private final MavenProject project;
private Set<Artifact> artifacts;
private Set<Artifact> dependencyArtifacts;
public MavenSessionHelper(MavenProject mavenProject) {
if (mavenProject == null) {
throw new IllegalArgumentException(Messages.Error_Maven_Project_Cant_Be_Null);
}
this.project = mavenProject;
}
public void ensureDependenciesAreResolved(String pluginId, String goal) throws CoreException {
artifacts = project.getArtifacts();
dependencyArtifacts = project.getDependencyArtifacts();
IProgressMonitor monitor = new NullProgressMonitor();
MavenSession session = getSession(monitor);
MavenExecutionPlan executionPlan = MavenPlugin.getMaven().calculateExecutionPlan(session,
project,
Collections.singletonList(goal),
true,
monitor);
MojoExecution execution = getExecution(executionPlan, pluginId);
ensureDependenciesAreResolved(session, execution, monitor);
}
public void ensureDependenciesAreResolved(MavenSession session, MojoExecution execution, IProgressMonitor monitor) throws CoreException {
artifacts = project.getArtifacts();
dependencyArtifacts = project.getDependencyArtifacts();
try {
MojoExecutor mojoExecutor = lookup(MojoExecutor.class);
DependencyContext dependencyContext = mojoExecutor.newDependencyContext(session,
Collections.singletonList(execution));
mojoExecutor.ensureDependenciesAreResolved(execution.getMojoDescriptor(), session, dependencyContext);
} catch(Exception ex) {
dispose();
}
}
private MavenSession getSession(IProgressMonitor monitor) throws CoreException {
IMavenProjectRegistry projectManager = MavenPlugin.getMavenProjectRegistry();
IMavenProjectFacade mavenFacade = projectManager.getMavenProject(project.getGroupId(),
project.getArtifactId(),
project.getVersion());
MavenExecutionRequest request = projectManager.createExecutionRequest(mavenFacade.getPom(),
mavenFacade.getResolverConfiguration(),
monitor);
MavenSession session = MavenPlugin.getMaven().createSession(request, project);
return session;
}
public void dispose() {
project.setArtifactFilter(null);
project.setResolvedArtifacts(null);
project.setArtifacts(artifacts);
project.setDependencyArtifacts(dependencyArtifacts);
}
private <T> T lookup(Class<T> clazz) throws CoreException {
try {
return ((MavenImpl)MavenPlugin.getMaven()).getPlexusContainer().lookup(clazz);
} catch(ComponentLookupException ex) {
throw new CoreException(new Status(IStatus.ERROR, IMavenConstants.PLUGIN_ID, -1,
Messages.MavenSessionHelper_Error_Component_Lookup, ex));
}
}
public static MojoExecution getExecution(MavenExecutionPlan executionPlan, String artifactId) throws CoreException {
if (executionPlan == null) return null;
for(MojoExecution execution : executionPlan.getMojoExecutions()) {
if(artifactId.equals(execution.getArtifactId()) ) {
return execution;
}
}
return null;
}
}