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ShowJarContents Class After Editing


package samples.ui.actions;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.rse.core.model.IHost;
import org.eclipse.rse.core.subsystems.ISubSystem;
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;
import org.eclipse.rse.ui.SystemBasePlugin;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

/**
 * An action that runs a command to display the contents of a Jar file.
 * The plugin.xml file restricts this action so it only appears for .jar files.
 */
public class ShowJarContents implements IObjectActionDelegate {
	private List _selectedFiles;

	/**
	 * Constructor for ShowJarContents.
	 */
	public ShowJarContents() {
		_selectedFiles = new ArrayList();
	}

	protected Shell getShell() {
		return SystemBasePlugin.getActiveWorkbenchShell();
	}

	protected IRemoteFile getFirstSelectedRemoteFile() {
		if (_selectedFiles.size() > 0) {
			return (IRemoteFile) _selectedFiles.get(0);
		}
		return null;
	}

	protected ISubSystem getSubSystem() {
		return getFirstSelectedRemoteFile().getParentRemoteFileSubSystem();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
	 */
	public void run(IAction action) {
		IRemoteFile selectedFile = getFirstSelectedRemoteFile();
		String cmdToRun = "jar -tvf " + selectedFile.getAbsolutePath(); //$NON-NLS-1$
		try {
			runCommand(cmdToRun);
		} catch (Exception e) {
			String excType = e.getClass().getName();
			MessageDialog.openError(getShell(), excType, excType + ": " + e.getLocalizedMessage()); //$NON-NLS-1$
			e.printStackTrace();
		}
	}

	public IRemoteCmdSubSystem getRemoteCmdSubSystem() {
		//get the Command subsystem associated with the current host
		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;
	}

	public void runCommand(String command) throws Exception {
		IRemoteCmdSubSystem cmdss = getRemoteCmdSubSystem();
		if (cmdss != null && cmdss.isConnected()) {
			// Run the command in a visible shell
			RemoteCommandHelpers.runUniversalCommand(getShell(), command, ".", cmdss); //$NON-NLS-1$
		} else {
			MessageDialog.openError(getShell(), "No command subsystem", "Found no command subsystem");
		}
	}

	public void selectionChanged(org.eclipse.jface.action.IAction action, org.eclipse.jface.viewers.ISelection selection) {
		_selectedFiles.clear();
		// store the selected jars to be used when running
		Iterator theSet = ((IStructuredSelection) selection).iterator();
		while (theSet.hasNext()) {
			Object obj = theSet.next();
			if (obj instanceof IRemoteFile) {
				_selectedFiles.add(obj);
			}
		}
	}

	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
	}
}


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire