BndConfigurator.java

package bndtools.m2e;

import java.util.Arrays;
import java.util.List;
import java.util.Set;

import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.WorkspaceJob;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.m2e.core.MavenPlugin;
import org.eclipse.m2e.core.embedder.IMaven;
import org.eclipse.m2e.core.lifecyclemapping.model.IPluginExecutionMetadata;
import org.eclipse.m2e.core.project.IMavenProjectFacade;
import org.eclipse.m2e.core.project.configurator.AbstractBuildParticipant;
import org.eclipse.m2e.core.project.configurator.AbstractProjectConfigurator;
import org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant;
import org.eclipse.m2e.core.project.configurator.ProjectConfigurationRequest;

public class BndConfigurator extends AbstractProjectConfigurator {

    @Override
    public void configure(ProjectConfigurationRequest request, IProgressMonitor monitor) throws CoreException {}

    @Override
    public AbstractBuildParticipant getBuildParticipant(final IMavenProjectFacade projectFacade, MojoExecution execution, IPluginExecutionMetadata executionMetadata) {
        return new MojoExecutionBuildParticipant(execution, true, true) {
            @Override
            public Set<IProject> build(int kind, IProgressMonitor monitor) throws Exception {
                // build mojo like normal
                final Set<IProject> build = super.build(kind, monitor);

                // now we make sure jar is built in separate job, doing this during maven builder will throw lifecycle errors
                new WorkspaceJob("Executing " + projectFacade.getProject().getName() + " jar:jar goal") {
                    @Override
                    public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException {
                        execJarMojo(projectFacade, monitor);

                        projectFacade.getProject().refreshLocal(IResource.DEPTH_INFINITE, monitor);

                        return Status.OK_STATUS;
                    }
                }.schedule();

                return build;
            }
        };
    }

    private void execJarMojo(IMavenProjectFacade projectFacade, IProgressMonitor monitor) throws CoreException {
        MavenProject mavenProject = projectFacade.getMavenProject();

        if (mavenProject == null) {
            mavenProject = projectFacade.getMavenProject(monitor);
        }

        final IMaven maven = MavenPlugin.getMaven();

        final MavenExecutionPlan plan = maven.calculateExecutionPlan(mavenProject, Arrays.asList("jar:jar"), true, monitor);
        final List<MojoExecution> mojoExecutions = plan.getMojoExecutions();

        if (mojoExecutions != null) {
            for (MojoExecution mojoExecution : mojoExecutions) {
                MavenPlugin.getMaven().execute(mavenProject, mojoExecution, monitor);
            }
        }
    }

}