mockit.coverage.DataFileMerging Maven / Gradle / Ivy
/*
* Copyright (c) 2006 Rogério Liesenfeld
* This file is subject to the terms of the MIT license (see LICENSE.txt).
*/
package mockit.coverage;
import java.io.*;
import java.util.*;
import javax.annotation.*;
import mockit.coverage.data.*;
final class DataFileMerging
{
@Nonnull private final List inputFiles;
DataFileMerging(@Nonnull String[] inputPaths)
{
inputFiles = new ArrayList(inputPaths.length);
for (String path : inputPaths) {
addInputFileToList(path.trim());
}
}
private void addInputFileToList(@Nonnull String path)
{
if (!path.isEmpty()) {
File inputFile = new File(path);
if (inputFile.isDirectory()) {
inputFile = new File(inputFile, "coverage.ser");
}
inputFiles.add(inputFile);
}
}
@Nonnull CoverageData merge() throws IOException
{
CoverageData mergedData = null;
for (File inputFile : inputFiles) {
if (inputFile.exists()) {
CoverageData existingData = CoverageData.readDataFromFile(inputFile);
if (mergedData == null) {
mergedData = existingData;
}
else {
mergedData.merge(existingData);
}
}
}
if (mergedData == null) {
throw new IllegalArgumentException("No input \"coverage.ser\" files found");
}
return mergedData;
}
}