com.igormaznitsa.nbmindmap.utils.FakeFileObject.java Source code

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Here is the source code for com.igormaznitsa.nbmindmap.utils.FakeFileObject.java

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/*
 * Copyright 2015 Igor Maznitsa.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.igormaznitsa.nbmindmap.utils;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import org.apache.commons.io.FilenameUtils;
import org.openide.filesystems.FileChangeListener;
import org.openide.filesystems.FileLock;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileStateInvalidException;
import org.openide.filesystems.FileSystem;
import org.openide.util.Lookup;

public final class FakeFileObject extends FileObject {

    private static final long serialVersionUID = 4522181722467407052L;

    private final File wrappedFile;
    private final boolean folder;
    private final Date lastModified = new Date();

    private final static class FakeFileLock extends FileLock {
        private boolean locked = true;

        public FakeFileLock() {
        }

        @Override
        public void finalize() {
            if (isValid()) {
                releaseLock();
            }
            super.finalize();
        }

        @Override
        public boolean isValid() {
            return this.locked;
        }

        @Override
        public void releaseLock() {
            this.locked = false;
        }
    }

    private static final Enumeration<String> EMPTY_ENUMERATION = new Enumeration<String>() {
        @Override
        public boolean hasMoreElements() {
            return false;
        }

        @Override
        public String nextElement() {
            throw new NoSuchElementException();
        }
    };

    public FakeFileObject(final File file, final boolean folder) {
        super();
        this.wrappedFile = file;
        this.folder = folder;
    }

    @Override
    public String getPath() {
        return this.wrappedFile.getAbsolutePath().replace('\\', '/');
    }

    @Override
    public String getName() {
        return FilenameUtils.getBaseName(this.wrappedFile.getName());
    }

    @Override
    public String getExt() {
        return FilenameUtils.getExtension(this.wrappedFile.getName());
    }

    @Override
    public void rename(FileLock lock, String name, String ext) throws IOException {
    }

    @Override
    public FileSystem getFileSystem() throws FileStateInvalidException {
        return Lookup.getDefault().lookup(FileSystem.class);
    }

    @Override
    public FileObject getParent() {
        final File parent = this.wrappedFile.getParentFile();
        return parent == null ? null : new FakeFileObject(parent, true);
    }

    @Override
    public boolean isFolder() {
        return this.folder;
    }

    @Override
    public Date lastModified() {
        return this.lastModified;
    }

    @Override
    public boolean isRoot() {
        return this.folder && getParent() == null;
    }

    @Override
    public boolean isData() {
        return !this.folder;
    }

    @Override
    public boolean isValid() {
        return false;
    }

    @Override
    public void delete(final FileLock lock) throws IOException {
    }

    @Override
    public Object getAttribute(String attrName) {
        return null;
    }

    @Override
    public void setAttribute(String attrName, Object value) throws IOException {
    }

    @Override
    public Enumeration<String> getAttributes() {
        return EMPTY_ENUMERATION;
    }

    @Override
    public void addFileChangeListener(FileChangeListener fcl) {
    }

    @Override
    public void removeFileChangeListener(FileChangeListener fcl) {
    }

    @Override
    public long getSize() {
        return 0;
    }

    @Override
    public InputStream getInputStream() throws FileNotFoundException {
        throw new FileNotFoundException("It's a fake file object");
    }

    @Override
    public OutputStream getOutputStream(FileLock lock) throws IOException {
        throw new IOException("It's a fake file object");
    }

    @Override
    public FileLock lock() throws IOException {
        return new FakeFileLock();
    }

    @Override
    public void setImportant(boolean b) {
    }

    @Override
    public FileObject[] getChildren() {
        return new FileObject[0];
    }

    @Override
    public FileObject getFileObject(String name, String ext) {
        return null;
    }

    @Override
    public FileObject createFolder(String name) throws IOException {
        throw new IOException("It's a fake file object");
    }

    @Override
    public FileObject createData(String name, String ext) throws IOException {
        throw new IOException("It's a fake file object");
    }

    @Override
    public boolean isReadOnly() {
        return true;
    }

}