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package org.onap.pnfsimulator;
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.onap.pnfsimulator.simulator.validation.NoRopFilesException;
public class FileProvider {
public List<String> getFiles() throws NoRopFilesException {
List<String> files = queryFiles();
files.sort(Collections.reverseOrder());
List<String> fileListSorted = new ArrayList<>();
for (String f : files) {
fileListSorted.add(f);
}
return fileListSorted;
}
private static List<String> queryFiles() throws NoRopFilesException {
File folder = new File("./files/onap/");
File[] listOfFiles = folder.listFiles();
if (listOfFiles == null || listOfFiles.length == 0) {
throw new NoRopFilesException("No ROP files found in specified directory");
}
List<String> results = new ArrayList<>();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
results.add(listOfFiles[i].getName());
}
}
return results;
}
}
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