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/*
* Copyright © 2019 Bell Canada
*
* 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 org.onap.ccsdk.cds.sdclistener.util;
import static java.nio.file.Files.walk;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public final class FileUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(FileUtils.class);
private FileUtil() {
}
/**
* Delete the file.
*
* @param file - Given file
* @param path - Given path
*/
public static void deleteFile(File file, String path) {
boolean value = file.delete();
if (!value) {
LOGGER.error("Failed to delete the file {} at the location {}", file, path);
}
}
/**
* Extract files from the given path
*
* @param path where files reside.
* @return list of files.
*/
public static Optional<List<File>> getFilesFromDisk(Path path) {
try (Stream<Path> fileTree = walk(path)) {
// Get the list of files from the path
return Optional.of(fileTree.filter(Files::isRegularFile)
.map(Path::toFile)
.collect(Collectors.toList()));
} catch (IOException e) {
LOGGER.error("Failed to find the file due to", e);
}
return Optional.empty();
}
}
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