FileTreeItem.java

package com.github.swapii.condi;

import com.github.swapii.condi.ui.tree.TreeItem;

import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * @author Pavel Savinov
 * @version 7/26/13 12:19 PM
 */
public class FileTreeItem implements TreeItem {

	private FileTreeItem parent;
	private FileFilter fileFilter;
	private File file;

	public FileTreeItem(File file, FileTreeItem parent, FileFilter fileFilter) {
		this.file = file;
		this.parent = parent;
		this.fileFilter = fileFilter;
	}

	@Override
	public List<TreeItem> getChilds() {

		if (file.isDirectory()) {

			ArrayList<TreeItem> items = new ArrayList<TreeItem>();

			for (File childFile : file.listFiles(fileFilter)) {
				items.add(new FileTreeItem(childFile, this, fileFilter));
			}

			return items;

		} else {

			return Collections.EMPTY_LIST;

		}


	}

	@Override
	public boolean hasChilds() {
		File[] files = file.listFiles(fileFilter);
		return file.isDirectory() && files != null && files.length > 0;
	}

	@Override
	public boolean isSelectable() {

		if (file.isFile()) {
			return file.canRead();
		} else {
			File[] files = file.listFiles();
			return file.canRead() && files != null;
		}

	}

	@Override
	public TreeItem getParent() {
		return parent;
	}

	@Override
	public String toString() {
		return file.getName();
	}

	public File getFile() {
		return file;
	}
}