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Structr is an open source framework based on the popular Neo4j graph database.
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/**
 * Copyright (C) 2010-2016 Structr GmbH
 *
 * This file is part of Structr .
 *
 * Structr is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * Structr 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Structr.  If not, see .
 */
package org.structr.files.ftp;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.lang3.StringUtils;
import org.apache.ftpserver.ftplet.FtpFile;
import org.structr.common.SecurityContext;
import org.structr.common.error.FrameworkException;
import org.structr.core.app.App;
import org.structr.core.app.StructrApp;
import org.structr.core.entity.AbstractNode;
import org.structr.core.graph.CreateNodeCommand;
import org.structr.core.graph.NodeAttribute;
import org.structr.core.graph.Tx;
import org.structr.dynamic.File;
import org.structr.web.common.FileHelper;
import org.structr.web.entity.AbstractFile;
import org.structr.web.entity.Folder;

/**
 * This class is an equivalent to Java's native File class for file and folder
 * creation.
 *
 * It's a thin wrapper, implementing mkdir() and createOutputStream() only.
 *
 *
 */
public class FileOrFolder extends AbstractStructrFtpFile {

	private static final Logger logger = Logger.getLogger(FileOrFolder.class.getName());

	public FileOrFolder(final String newPath, final StructrFtpUser user) {
		super(newPath, user);
	}

	@Override
	public boolean isDirectory() {
		logger.log(Level.SEVERE, "isDirectory()");
		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
	}

	@Override
	public boolean isFile() {
		logger.log(Level.SEVERE, "isFile()");
		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
	}

	@Override
	public long getSize() {
		logger.log(Level.SEVERE, "getSize()");
		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
	}

	@Override
	public boolean mkdir() {

		final App app = StructrApp.getInstance();
		try (final Tx tx = app.tx()) {

			logger.log(Level.INFO, "mkdir() Folder");

			AbstractFile existing = FileHelper.getFileByAbsolutePath(SecurityContext.getSuperUserInstance(), newPath);
			if (existing != null) {
				logger.log(Level.WARNING, "File {0} already exists.", newPath);
				return false;
			}

			final Folder parentFolder = (Folder) FileHelper.getFileByAbsolutePath(SecurityContext.getSuperUserInstance(), StringUtils.substringBeforeLast(newPath, "/"));

			try {
				Folder newFolder = (Folder) StructrApp.getInstance().command(CreateNodeCommand.class).execute(
					new NodeAttribute(AbstractNode.type, Folder.class.getSimpleName()),
					new NodeAttribute(AbstractNode.owner, owner.getStructrUser()),
					new NodeAttribute(AbstractNode.name, getName())
				);

				if (parentFolder != null) {
					newFolder.setProperty(AbstractFile.parent, parentFolder);
				}

			} catch (FrameworkException ex) {
				logger.log(Level.SEVERE, null, ex);
				return false;
			}

			tx.success();

			return true;

		} catch (FrameworkException ex) {
			logger.log(Level.SEVERE, null, ex);
			return false;
		}
	}

	@Override
	public List listFiles() {
		logger.log(Level.SEVERE, "listFiles()");
		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
	}

	@Override
	public OutputStream createOutputStream(final long l) throws IOException {

		try (Tx tx = StructrApp.getInstance().tx()) {

			if (structrFile == null) {

				final Folder parentFolder = (Folder) FileHelper.getFileByAbsolutePath(SecurityContext.getSuperUserInstance(), StringUtils.substringBeforeLast(newPath, "/"));

				try {
					structrFile = FileHelper.createFile(SecurityContext.getSuperUserInstance(), new byte[0], null, File.class, getName());
					structrFile.setProperty(AbstractNode.type, File.class.getSimpleName());
					structrFile.setProperty(AbstractNode.owner, owner.getStructrUser());

					if (parentFolder != null) {
						structrFile.setProperty(AbstractFile.parent, parentFolder);
					}

				} catch (FrameworkException ex) {
					logger.log(Level.SEVERE, null, ex);
					return null;
				}
			}

			tx.success();

			return ((File) structrFile).getOutputStream();

		} catch (FrameworkException fex) {
			logger.log(Level.SEVERE, null, fex);
		}

		return null;
	}

	@Override
	public InputStream createInputStream(long l) throws IOException {
		logger.log(Level.SEVERE, "createInputStream()");
		throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
	}

}