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/*
* Syncany, www.syncany.org
* Copyright (C) 2011 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* 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 org.syncany.connection.plugins.local;
import org.syncany.connection.plugins.AbstractTransferManager;
import org.syncany.exceptions.LocalFileNotFoundException;
import org.syncany.exceptions.RemoteFileNotFoundException;
import org.syncany.exceptions.StorageConnectException;
import org.syncany.exceptions.StorageException;
import org.syncany.watch.remote.files.RemoteFile;
import org.syncany.util.FileUtil;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
*
* @author Philipp C. Heckel
*/
public class LocalTransferManager extends AbstractTransferManager {
private File folder;
public LocalTransferManager(LocalConnection connection) {
super(connection);
folder = connection.getFolder();
}
@Override
public LocalConnection getConnection() {
return (LocalConnection) super.getConnection();
}
@Override
public void connect() throws StorageConnectException {
if (folder == null || !folder.exists() || !folder.canRead() || !folder.canWrite() || !folder.isDirectory()) {
throw new StorageConnectException("Repository folder '"+folder+"' does not exist or is not writable.");
}
}
@Override
public void disconnect() throws StorageException {
// Nothing.
}
@Override
public void download(RemoteFile remoteFile, File localFile) throws RemoteFileNotFoundException, StorageException {
connect();
File repoFile = getRepoFile(remoteFile);
if (!repoFile.exists()) {
throw new RemoteFileNotFoundException("No such file in local repository: "+repoFile);
}
try {
File tempLocalFile = config.getCache().createTempFile("local-tm-download");
tempLocalFile.deleteOnExit();
FileUtil.copy(repoFile, tempLocalFile, getConnection().getThrottleKbps());
// SNM 6/01/11 windows doesn't support rename *onto* another file
if (localFile.exists()){
localFile.delete();
}
if (!tempLocalFile.renameTo(localFile)) {
throw new StorageException("Unable to move temp local file "+tempLocalFile+" to "+localFile);
}
tempLocalFile.delete();
}
catch (IOException ex) {
throw new StorageException("Unable to copy file "+repoFile+" from local repository to "+localFile, ex);
}
}
@Override
public void upload(File localFile, RemoteFile remoteFile) throws LocalFileNotFoundException, StorageException {
connect();
File repoFile = getRepoFile(remoteFile);
File tempRepoFile = new File(FileUtil.getAbsoluteParentDirectory(repoFile)+File.separator+".temp-"+repoFile.getName());
// Do not overwrite files!
if (repoFile.exists()) {
return;
}
// No such local file
if (!localFile.exists()) {
throw new LocalFileNotFoundException("No such file on local disk: "+localFile);
}
try {
FileUtil.copy(localFile, tempRepoFile, getConnection().getThrottleKbps());
tempRepoFile.renameTo(repoFile);
}
catch (IOException ex) {
throw new StorageException("Unable to copy file "+localFile+" to local repository "+repoFile, ex);
}
}
@Override
public void delete(RemoteFile remoteFile) throws RemoteFileNotFoundException, StorageException {
connect();
File repoFile = getRepoFile(remoteFile);
if (!repoFile.exists()) {
return;
}
repoFile.delete();
}
@Override
public Map<String, RemoteFile> list() throws StorageException {
return list(null);
}
@Override
public Map<String, RemoteFile> list(final String namePrefix) throws StorageException {
connect();
File[] files;
if (namePrefix == null) {
files = folder.listFiles();
}
else {
files = folder.listFiles(new FilenameFilter() {
@Override public boolean accept(File dir, String name) {
return name.startsWith(namePrefix); }
});
}
if (files == null) {
throw new StorageException("Unable to read local respository "+folder);
}
Map<String, RemoteFile> remoteFiles = new HashMap<String, RemoteFile>();
for (File file : files) {
remoteFiles.put(file.getName(), new RemoteFile(file.getName(), file.length(), file));
}
return remoteFiles;
}
private File getRepoFile(RemoteFile remoteFile) {
return new File(folder+File.separator+remoteFile.getName());
}
}
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