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/*
* Copyright (C) 2017 AT&T Intellectual Property. 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.
* ============LICENSE_END=========================================================
* Modifications copyright (c) 2019 Nokia
* ================================================================================
*/
package org.openecomp.sdc.common.utils;
import com.google.common.collect.Multimap;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.apache.commons.lang3.tuple.Pair;
import org.openecomp.core.utilities.file.FileContentHandler;
import org.openecomp.core.utilities.orchestration.OnboardingTypesEnum;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.common.errors.ErrorCategory;
import org.openecomp.sdc.common.errors.ErrorCode;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.common.zip.ZipUtils;
import org.openecomp.sdc.common.zip.exception.ZipException;
public class CommonUtil {
private CommonUtil() {
// prevent instantiation
}
/**
* Reads the files from the zip AND validates zip is flat (no folders).
*
* @param type the onboarding type
* @param uploadedFileData zip file bytes
* @return FileContentHandler if input is valid and has no folders
* @throws IOException when the zip could not be read
*/
public static FileContentHandler validateAndUploadFileContent(final OnboardingTypesEnum type,
final byte[] uploadedFileData) throws IOException {
final Pair<FileContentHandler, List<String>> pair;
try {
pair = getFileContentMapFromOrchestrationCandidateZip(uploadedFileData);
} catch (final ZipException e) {
throw new IOException(e);
}
if (isFileOriginFromZip(type.toString())) {
validateNoFolders(pair.getRight());
}
return pair.getLeft();
}
public static Pair<FileContentHandler, List<String>> getFileContentMapFromOrchestrationCandidateZip(
byte[] uploadFileData) throws ZipException {
final Map<String, byte[]> zipFileMap = ZipUtils.readZip(uploadFileData, true);
final List<String> folderList = new ArrayList<>();
final FileContentHandler mapFileContent = new FileContentHandler();
zipFileMap.forEach((key, value) -> {
if (value == null) {
folderList.add(key);
} else {
mapFileContent.addFile(key, value);
}
});
return new ImmutablePair<>(mapFileContent, folderList);
}
private static void validateNoFolders(List<String> folderList) {
if (CollectionUtils.isNotEmpty(folderList)) {
throw new CoreException((new ErrorCode.ErrorCodeBuilder())
.withMessage(Messages.ZIP_SHOULD_NOT_CONTAIN_FOLDERS.getErrorMessage())
.withId(Messages.ZIP_SHOULD_NOT_CONTAIN_FOLDERS.getErrorMessage())
.withCategory(ErrorCategory.APPLICATION).build());
}
}
private static boolean validateFilesExtensions(Set<String> allowedExtensions, FileContentHandler
files) {
for (String fileName : files.getFileList()) {
if (!allowedExtensions.contains(FilenameUtils.getExtension(fileName))) {
return false;
}
}
return true;
}
public static boolean validateAllFilesYml(FileContentHandler files) {
Set<String> allowedExtensions = new HashSet<>(Arrays.asList("yml", "yaml"));
return validateFilesExtensions(allowedExtensions, files);
}
public static boolean isFileOriginFromZip(String fileOrigin) {
return Objects.nonNull(fileOrigin)
&& fileOrigin.equalsIgnoreCase(OnboardingTypesEnum.ZIP.toString());
}
public static <T> Optional<T> createObjectUsingSetters(Object objectCandidate,
Class<T> classToCreate)
throws Exception {
return org.onap.sdc.tosca.services.CommonUtil.createObjectUsingSetters(objectCandidate, classToCreate);
}
public static Map<String, Object> getObjectAsMap(Object obj) {
return org.onap.sdc.tosca.services.CommonUtil.getObjectAsMap(obj);
}
public static <K, V> boolean isMultimapEmpty(Multimap<K, V> obj) {
return Objects.isNull(obj) || obj.isEmpty();
}
}
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