package org.bndtools.core.ui.resource;
import java.io.IOException;
import java.net.URLEncoder;
import org.bndtools.utils.jface.ImageCachingLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.graphics.Image;
import org.osgi.resource.Requirement;
import aQute.bnd.osgi.resource.FilterParser;
import aQute.bnd.osgi.resource.FilterParser.Expression;
import bndtools.Plugin;
public class RequirementLabelProvider extends ImageCachingLabelProvider {
public RequirementLabelProvider() {
super(Plugin.PLUGIN_ID);
}
@Override
public void update(ViewerCell cell) {
Object element = cell.getElement();
if (element instanceof Requirement) {
Requirement requirement = (Requirement) element;
StyledString label = getLabel(requirement);
cell.setText(label.getString());
cell.setStyleRanges(label.getStyleRanges());
Image icon = getImage(R5LabelFormatter.getNamespaceImagePath(requirement.getNamespace()), true);
if (icon != null)
cell.setImage(icon);
}
}
protected StyledString getLabel(Requirement requirement) {
StyledString label = new StyledString();
return getLabel(label, requirement);
}
protected StyledString getLabel(StyledString label, Requirement requirement) {
R5LabelFormatter.appendRequirementLabel(label, requirement);
return label;
}
/**
* This method return a query string (on jpm) based on a filter. This is not exact, but should in general give a
* list to work from
*
* @param req
* The requirement searched
* @return a query string where p: is for package and bsn: is for bundle symbolic name.
*/
public static String requirementToUrl(Requirement req) throws IOException {
FilterParser fp = new FilterParser();
Expression expression = fp.parse(req);
String s = expression.query();
return "http://jpm4j.org/#!/search?q=" + URLEncoder.encode(s, "UTF-8");
}
}