/*******************************************************************************
* Copyright (c) 2006-2012
* Software Technology Group, Dresden University of Technology
* DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Software Technology Group - TU Dresden, Germany;
* DevBoost GmbH - Berlin, Germany
* - initial API and implementation
******************************************************************************/
package org.reuseware.sokan.ui.internal.actions;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.reuseware.sokan.ID;
import org.reuseware.sokan.IndexRow;
import org.reuseware.sokan.index.util.CoreUtil;
import org.reuseware.sokan.index.util.IndexUtil;
import org.reuseware.sokan.index.util.ResourceUtil;
/**
* Action to query the index for information about the selected artifact.
*/
public class QueryAction implements IObjectActionDelegate {
private final IndexUtil indexUtil = IndexUtil.INSTANCE;
private List<ID> ids;
private ISelection selection;
/**
* Constructs a new query action.
*/
public QueryAction() {
ids = new LinkedList<ID>();
}
/**
* This implementation does nothing.
*
* @param action
* the action proxy that handles presentation portion of the
* action; must not be <code>null</code>.
* @param targetPart
* the new part target; must not be <code>null</code>.
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) { }
/**
* Activates this action if the selected artifact is indexed.
*
* @param action the action proxy that handles presentation portion of
* the action
* @param selection the current selection, or <code>null</code> if there
* is no selection.
*/
public void selectionChanged(IAction action, ISelection selection) {
this.selection = selection;
ids.clear();
List<IFile> files = acquireSelectedFiles();
boolean areArtifact = indexUtil.areArtifactsRes(files);
action.setEnabled(areArtifact);
if (areArtifact) {
for (IFile iFile : files) {
ids.add(ResourceUtil.idFrom((IResource) iFile));
}
}
}
/**
* Runs the action.
*
* @param action the action proxy that handles the presentation portion of the
* action
*/
public void run(IAction action) {
List<IndexRow> rows = indexUtil.getIndex(ids);
for (IndexRow row : rows) {
String message = CoreUtil.print(row);
MessageDialog.openInformation(
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(),
"Sokan query result", message);
}
}
private List<IFile> acquireSelectedFiles() {
if (!(selection instanceof IStructuredSelection)) {
return null;
}
@SuppressWarnings("unchecked")
List<Object> selected = ((IStructuredSelection) selection).toList();
List<IFile> back = new ArrayList<IFile>(selected.size());
IFile file = null;
for (Object object : selected) {
if (object instanceof IContainer) {
file = (IFile) object;
} else if (object instanceof IAdaptable) {
file = (IFile) ((IAdaptable) object).getAdapter(IFile.class);
}
if (file != null) {
back.add(file);
}
}
return back;
}
}