ShowJarContents Class After Editing

package samples.ui.actions;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.rse.core.model.IHost;
import org.eclipse.rse.files.ui.actions.SystemAbstractRemoteFilePopupMenuExtensionAction;
import org.eclipse.rse.shells.ui.RemoteCommandHelpers;
import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
import org.eclipse.rse.subsystems.shells.core.subsystems.IRemoteCmdSubSystem;

public class ShowJarContents2 extends SystemAbstractRemoteFilePopupMenuExtensionAction {

	public ShowJarContents2() {
		super();
	}

	public void run() {
		IRemoteFile selectedFile = getFirstSelectedRemoteFile();
		String cmdToRun = "jar -tvf " + selectedFile.getAbsolutePath();
		runCommand(cmdToRun);
	}

	private void runCommand(String command) {
		IRemoteCmdSubSystem cmdss = getRemoteCmdSubSystem();
		if (cmdss != null && cmdss.isConnected()) {
			RemoteCommandHelpers.runUniversalCommand(getShell(), command, ".", cmdss);
		} else {
			MessageDialog.openError(getShell(), "No command subsystem", "Found no command subsystem");
		}
	}
	
	/**
	 * Gets the Command subsystem associated with the current host
	 */
	private IRemoteCmdSubSystem getRemoteCmdSubSystem() {
		IHost myHost = getSubSystem().getHost();
		IRemoteCmdSubSystem[] subsys = RemoteCommandHelpers.getCmdSubSystems(myHost);
		for (int i = 0; i < subsys.length; i++) {
			if (subsys[i].getSubSystemConfiguration().supportsCommands()) {
				return subsys[i];
			}
		}
		return null;
	}

}