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/*
* Copyright 2019 Nokia
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.cvc.csar.parser;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
class FileFormat {
public enum FileType { WINDOWS, UNIX, MAC, UNKNOWN }
private static final char CR = '\r';
private static final char LF = '\n';
private FileFormat() {
}
public static FileType discover(String fileName) throws IOException {
try (Reader reader = new BufferedReader(new FileReader(fileName))) {
return discover(reader);
}
}
public static String getNewLine(String fileName) throws IOException {
switch(discover(fileName)) {
case WINDOWS: return String.valueOf(CR) + String.valueOf(LF);
case MAC: return String.valueOf(CR);
default: return String.valueOf(LF);
}
}
private static FileType discover(Reader reader) throws IOException {
int c;
while ((c = reader.read()) != -1) {
switch(c) {
case LF: return FileType.UNIX;
case CR: {
if (reader.read() == LF)
return FileType.WINDOWS;
else
return FileType.MAC;
}
default: continue;
}
}
return FileType.UNKNOWN;
}
}
public class ManifestFileSplitter {
private static final Logger LOG = LoggerFactory.getLogger(ManifestFileSplitter.class);
public ManifestFileModel split(File manifestFile) {
String fileName = manifestFile.getAbsolutePath();
List<String> data = new ArrayList<>();
List<String> cms = new ArrayList<>();
try (Stream<String> stream = Files.lines(Paths.get(fileName))) {
List<String> lines = stream.collect(Collectors.toList());
return createManifestFileModel(data, cms, lines, FileFormat.getNewLine(fileName));
} catch (IOException e) {
LOG.error("Unable to process manifest file!", e);
throw new IllegalArgumentException(String.format("Unable to process manifest file! Wrong file path: '%s'", fileName));
}
}
private ManifestFileModel createManifestFileModel(List<String> data, List<String> cms, List<String> lines, String newLine) {
boolean isCmsSection = false;
for (String line : lines) {
if (line.contains("BEGIN CMS")) {
isCmsSection = true;
}
if (isCmsSection) {
cms.add(line);
} else {
data.add(line);
}
}
return new ManifestFileModel(data, cms, newLine);
}
}
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