WorkingDirectory_VirtualItemChildrenProvider.java

/* license-start
 * 
 * Copyright (C) 2008 - 2013 Crispico, <http://www.crispico.com/>.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 3.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details, at <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *   Crispico - Initial API and implementation
 *
 * license-end
 */
package org.flowerplatform.web.git.explorer;

import java.io.File;
import java.util.ArrayList;
import java.util.Collection;

import org.eclipse.jgit.lib.Repository;
import org.flowerplatform.common.util.Pair;
import org.flowerplatform.communication.tree.GenericTreeContext;
import org.flowerplatform.communication.tree.IChildrenProvider;
import org.flowerplatform.communication.tree.remote.TreeNode;
import org.flowerplatform.web.git.GitNodeType;
import org.flowerplatform.web.git.GitPlugin;

/**
 * Parent node = Virtual node (Working Directories) (i.e. Pair<Repository, nodeType>).<br/>
 * Child node = Pair<File, nodeType>, i.e. Pair<Pair<File, nodeType>, nodeType>.
 * 
 * @author Cristina Constantinescu
 */
public class WorkingDirectory_VirtualItemChildrenProvider implements IChildrenProvider {
	
	@Override
	public Collection<Pair<Object, String>> getChildrenForNode(Object node, TreeNode treeNode, GenericTreeContext context) {	
		@SuppressWarnings("unchecked")
		Repository repository = ((Pair<Repository, String>) node).a;	
		File[] children = repository.getDirectory().getParentFile().getParentFile().listFiles();
		
		Collection<Pair<Object, String>> result = new ArrayList<Pair<Object, String>>(children.length);
		for (File child : children) {		
			Repository repo = GitPlugin.getInstance().getUtils().getRepository(child);
			
			if (repo != null) {
				Pair<Object, String> pair = new Pair<Object, String>(new Pair<File, String>(child, GitNodeType.NODE_TYPE_WDIR), GitNodeType.NODE_TYPE_WDIR);
				result.add(pair);
			}
		}		
		return result;
	}

	@Override
	public Boolean nodeHasChildren(Object node, TreeNode treeNode, GenericTreeContext context) {
		return true;
	}

}