package bndtools.services;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.osgi.service.url.AbstractURLStreamHandlerService;
import org.osgi.util.tracker.ServiceTracker;
public class WorkspaceURLStreamHandlerService extends AbstractURLStreamHandlerService {
public static final String PROTOCOL = "workspace";
private final ServiceTracker workspaceTracker;
public WorkspaceURLStreamHandlerService(ServiceTracker workspaceTracker) {
this.workspaceTracker = workspaceTracker;
}
@Override
public URLConnection openConnection(URL url) throws IOException {
String protocol = url.getProtocol();
if (!PROTOCOL.equals(protocol))
throw new MalformedURLException("Unsupported protocol");
IPath path = new Path(url.getPath());
IWorkspace workspace = (IWorkspace) workspaceTracker.getService();
if (workspace == null)
throw new IOException("Workspace is not available");
IPath workspaceLocation = workspace.getRoot().getLocation();
if (workspaceLocation == null)
throw new IOException("Cannot determine workspace location.");
IPath location = workspaceLocation.append(path);
return new URL("file", null, location.toOSString()).openConnection();
}
}