/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
* All rights reserved.
*
* 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 br.com.caelum.vraptor.observer.upload;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.enterprise.context.ApplicationScoped;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Throwables;
/**
* Default implementation for {@link MultipartConfig}.
*
* TODO: should expose not a directory, but a way to define memory or file usage (commons upload has already a common
* interface to it).
*
* @author Paulo Silveira
*/
@ApplicationScoped
public class DefaultMultipartConfig implements MultipartConfig {
private final Logger logger = LoggerFactory.getLogger(DefaultMultipartConfig.class);
@Override
public long getSizeLimit() {
return 2 * 1024 * 1024;
}
@Override
public File getDirectory() {
Path tmp = getTemporaryDirectory();
if (tmp == null) {
tmp = createDirInsideApplication();
}
return tmp.toFile();
}
protected Path getTemporaryDirectory() {
try {
Path tmp = Files.createTempFile("vraptor", "upload");
Path parent = tmp.getParent();
logger.debug("Using temporary directory as {}", parent);
Files.delete(tmp);
return parent;
} catch (IOException e) {
logger.warn("Unable to find temp directory", e);
return null;
}
}
protected Path createDirInsideApplication() {
logger.debug("Creating a dir inside the application");
Path path = Paths.get(".tmp-multipart-upload");
try {
path = Files.createDirectories(path);
logger.debug("Using temporary directory as {}", path);
} catch (IOException e) {
logger.error("Unable to use temp directory inside application", e);
throw Throwables.propagate(e);
}
return path;
}
}