/**
* Copyright (C) 2010-2017 Structr GmbH
*
* This file is part of Structr <http://structr.org>.
*
* 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 <http://www.gnu.org/licenses/>.
*/
package org.structr.files.ssh;
import java.io.IOException;
import java.net.URI;
import java.nio.file.FileSystem;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.graph.Tx;
import org.structr.web.entity.AbstractFile;
import org.structr.web.entity.FileBase;
import org.structr.web.entity.Folder;
/**
*
*
*/
public class StructrSSHFile implements Path {
private static final Logger logger = LoggerFactory.getLogger(StructrSSHFile.class.getName());
protected SecurityContext securityContext = null;
protected FileSystem fileSystem = null;
protected StructrSSHFile parent = null;
protected AbstractFile actualFile = null;
protected String name = null;
public StructrSSHFile(final SecurityContext securityContext) {
this(null, "/", null);
this.securityContext = securityContext;
}
public StructrSSHFile(final StructrSSHFile parent, final String name, final AbstractFile actualFile) {
this.actualFile = actualFile;
this.parent = parent;
this.name = name;
if (parent != null) {
this.fileSystem = parent.getFileSystem();
}
}
@Override
public String toString() {
return getClass().getSimpleName() + " (" + name + ")";
}
public SecurityContext getSecurityContext() {
if (parent != null) {
return parent.getSecurityContext();
}
return securityContext;
}
public AbstractFile getActualFile() {
return actualFile;
}
public void setActualFile(final AbstractFile file) {
this.actualFile = file;
}
public void setFileSystem(final FileSystem fileSystem) {
this.fileSystem = fileSystem;
}
public StructrSSHFile findFile(final String path) {
if ("/".equals(path)) {
return getRootFolder();
}
final App app = StructrApp.getInstance(getRootFolder().getSecurityContext());
final boolean isAbsolute = path.startsWith("/");
final String localPath = isAbsolute ? path.substring(1) : path;
final String[] parts = localPath.split("[/]+");
final String localPart = parts[0];
if (".".equals(path)) {
return this;
}
if ("..".equals(path)) {
return parent;
}
if (isAbsolute && parent != null) {
return getRootFolder().findFile(path);
} else {
// look for files/folders without parent
try (final Tx tx = app.tx()) {
for (final Folder folder : getFolders()) {
final String folderName = folder.getName();
if (localPart.equals(folderName)) {
final StructrSSHFile matchingFolder = new StructrSSHFile(this, folderName, folder);
if (parts.length > 1) {
return matchingFolder.findFile(localPath.substring(folderName.length() + 1));
} else {
// match found
return matchingFolder;
}
}
}
for (final FileBase file : getFiles()) {
final String fileName = file.getName();
if (localPart.equals(fileName)) {
if (parts.length > 1) {
throw new IllegalStateException("Found file where folder was expected, aborting.");
}
return new StructrSSHFile(this, fileName, file);
}
}
tx.success();
} catch (FrameworkException fex) {
logger.warn("", fex);
}
}
return new StructrSSHFile(this, path, null);
}
private StructrSSHFile getRootFolder() {
if (parent != null) {
return parent;
}
return this;
}
protected List<Folder> getFolders() throws FrameworkException {
if (actualFile != null && parent != null) {
return actualFile.getProperty(Folder.folders);
} else {
return StructrApp.getInstance(getSecurityContext()).nodeQuery(Folder.class).and(AbstractFile.parent, null).getAsList();
}
}
protected List<FileBase> getFiles() throws FrameworkException {
if (actualFile != null && parent != null) {
return actualFile.getProperty(Folder.files);
} else {
return StructrApp.getInstance(getSecurityContext()).nodeQuery(FileBase.class).and(AbstractFile.parent, null).getAsList();
}
}
@Override
public FileSystem getFileSystem() {
return fileSystem;
}
@Override
public boolean isAbsolute() {
return true;
}
@Override
public Path getRoot() {
return getFileSystem().getPath("/");
}
@Override
public Path getFileName() {
return Paths.get(name);
}
@Override
public Path getParent() {
return parent;
}
@Override
public int getNameCount() {
logger.info("Method not implemented yet"); return 0;
}
@Override
public Path getName(int i) {
logger.info("Method not implemented yet"); return null;
}
@Override
public Path subpath(int i, int i1) {
logger.info("Method not implemented yet"); return null;
}
@Override
public boolean startsWith(Path path) {
logger.info("Method not implemented yet"); return false;
}
@Override
public boolean startsWith(String string) {
logger.info("Method not implemented yet"); return false;
}
@Override
public boolean endsWith(Path path) {
logger.info("Method not implemented yet"); return false;
}
@Override
public boolean endsWith(String string) {
logger.info("Method not implemented yet"); return false;
}
@Override
public Path normalize() {
// We assume no redundant path parts, see https://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html#normalize()
return this;
}
@Override
public Path resolve(Path path) {
return findFile(path.toString());
}
@Override
public Path resolve(String string) {
return findFile(string);
}
@Override
public Path resolveSibling(Path path) {
logger.info("Method not implemented yet"); return null;
}
@Override
public Path resolveSibling(String string) {
logger.info("Method not implemented yet"); return null;
}
@Override
public Path relativize(Path path) {
logger.info("Method not implemented yet"); return null;
}
@Override
public URI toUri() {
logger.info("Method not implemented yet"); return null;
}
@Override
public Path toAbsolutePath() {
// We assume this is already an absolute path, see https://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html#toAbsolutePath()
return this;
}
@Override
public Path toRealPath(LinkOption... los) throws IOException {
logger.info("Method not implemented yet"); return null;
}
@Override
public java.io.File toFile() {
logger.info("Method not implemented yet"); return null;
}
@Override
public WatchKey register(WatchService ws, WatchEvent.Kind<?>[] kinds, WatchEvent.Modifier... mdfrs) throws IOException {
logger.info("Method not implemented yet"); return null;
}
@Override
public WatchKey register(WatchService ws, WatchEvent.Kind<?>... kinds) throws IOException {
logger.info("Method not implemented yet"); return null;
}
@Override
public Iterator<Path> iterator() {
Path _parent = this.getParent();
final List<Path> pathElements = new ArrayList<>();
pathElements.add(this);
while (_parent != null) {
pathElements.add(_parent);
_parent = _parent.getParent();
}
Collections.reverse(pathElements);
return pathElements.iterator();
}
@Override
public int compareTo(Path path) {
logger.info("Method not implemented yet"); return 0;
}
}