package org.bndtools.builder.decorator.ui;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import org.bndtools.builder.NewBuilder;
import org.bndtools.builder.decorator.ExportedPackageDecoratorJob;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.ILightweightLabelDecorator;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.Version;
import bndtools.central.Central;
/**
* A decorator for {@link IPackageFragment}s that adds an icon if the package is exported by the bundle manifest.
*
* @author duckAsteroid
*/
public class PackageDecorator extends LabelProvider implements ILightweightLabelDecorator {
private final ImageDescriptor exportedIcon = AbstractUIPlugin.imageDescriptorFromPlugin(NewBuilder.PLUGIN_ID, "icons/plus-decorator.png");
private final ImageDescriptor excludedIcon = AbstractUIPlugin.imageDescriptorFromPlugin(NewBuilder.PLUGIN_ID, "icons/excluded_ovr.gif");
public void decorate(Object element, IDecoration decoration) {
if (element instanceof IPackageFragment) {
IPackageFragment pkg = (IPackageFragment) element;
IJavaProject javaProject = pkg.getJavaProject();
IProject project = javaProject.getProject();
boolean schedule = true;
try {
Collection<IResource> sourceFolders = Central.getSourceFolderModel(project);
if (sourceFolders == null) {
return;
}
IResource sourceFolderResource = pkg.getParent().getResource();
if (!sourceFolders.contains(sourceFolderResource)) {
schedule = false;
return;
}
Map<String, ? extends Collection<Version>> exports = Central.getExportedPackageModel(project);
if (exports == null) {
return;
}
schedule = false;
String pkgName = pkg.getElementName();
Collection<Version> versions = exports.get(pkgName);
if (versions != null) {
decoration.addOverlay(exportedIcon);
if (versions.isEmpty())
decoration.addSuffix(" " + Collections.singletonList(Version.emptyVersion).toString());
else
decoration.addSuffix(" " + versions.toString());
}
boolean isSourcePkg = isSourcePackage(pkg);
boolean emptyPkg = isEmptyPackage(pkg);
Collection<String> contained = Central.getContainedPackageModel(project);
if (isSourcePkg && !emptyPkg && (contained == null || !contained.contains(pkgName))) {
decoration.addOverlay(excludedIcon);
decoration.addSuffix(" <excluded>");
}
} finally {
if (schedule) {
ExportedPackageDecoratorJob.scheduleForProject(project);
}
}
}
}
private boolean isEmptyPackage(IPackageFragment pkg) {
try {
return !pkg.containsJavaResources();
} catch (JavaModelException e) {
return false;
}
}
private boolean isSourcePackage(IPackageFragment pkg) {
try {
return pkg.getKind() == IPackageFragmentRoot.K_SOURCE;
} catch (JavaModelException e) {
return false;
}
}
}