de.blizzy.backup.vfs.filesystem.FileSystemFileOrFolder.java Source code

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Here is the source code for de.blizzy.backup.vfs.filesystem.FileSystemFileOrFolder.java

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/*
blizzy's Backup - Easy to use personal file backup application
Copyright (C) 2011-2012 Maik Schreiber
    
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, either version 3 of the License, or
(at your option) any later version.
    
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.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package de.blizzy.backup.vfs.filesystem;

import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.attribute.FileTime;
import java.util.HashSet;
import java.util.Set;

import org.apache.commons.io.IOUtils;

import de.blizzy.backup.FileAttributes;
import de.blizzy.backup.vfs.IFile;
import de.blizzy.backup.vfs.IFileSystemEntry;
import de.blizzy.backup.vfs.IFolder;
import de.blizzy.backup.vfs.IOutputStreamProvider;

public class FileSystemFileOrFolder implements IFile, IFolder {
    private File file;
    private FileAttributes attrs;

    public FileSystemFileOrFolder(File file) {
        this.file = file;
    }

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

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

    private FileAttributes getAttributes() throws IOException {
        if (attrs == null) {
            attrs = FileAttributes.get(file.toPath());
        }
        return attrs;
    }

    @Override
    public boolean isHidden() throws IOException {
        return getAttributes().isHidden();
    }

    @Override
    public FileTime getCreationTime() throws IOException {
        return getAttributes().getCreationTime();
    }

    @Override
    public FileTime getLastModificationTime() throws IOException {
        return getAttributes().getModificationTime();
    }

    @Override
    public Set<IFileSystemEntry> list() {
        Set<IFileSystemEntry> result = new HashSet<>();
        File[] files = file.listFiles();
        if (files != null) {
            for (File f : files) {
                result.add(new FileSystemFileOrFolder(f));
            }
        }
        return result;
    }

    @Override
    public void copy(IOutputStreamProvider outputStreamProvider) throws IOException {
        OutputStream out = null;
        try {
            out = outputStreamProvider.getOutputStream();
            Files.copy(file.toPath(), out);
        } finally {
            IOUtils.closeQuietly(out);
        }
    }

    @Override
    public long getLength() {
        return file.length();
    }

    @Override
    public IFolder getParentFolder() {
        File parent = file.getParentFile();
        return (parent != null) ? new FileSystemFileOrFolder(parent) : null;
    }

    @Override
    public boolean isFolder() {
        return file.isDirectory();
    }

    @Override
    public int hashCode() {
        return file.hashCode();
    }

    @Override
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        } else if ((o != null) && o.getClass().equals(getClass())) {
            FileSystemFileOrFolder other = (FileSystemFileOrFolder) o;
            return other.file.equals(file);
        }
        return false;
    }
}