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/*
* SonarQube Runner - API
* Copyright (C) 2011 SonarSource
* dev@sonar.codehaus.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.runner.api;
import javax.annotation.Nullable;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Properties;
import java.nio.file.attribute.*;
class Utils {
private Utils() {
// only util static methods
}
/**
* Similar to org.apache.commons.lang.StringUtils#join()
*/
static String join(String[] array, String delimiter) {
StringBuilder sb = new StringBuilder();
Iterator<String> it = Arrays.asList(array).iterator();
while (it.hasNext()) {
sb.append(it.next());
if (!it.hasNext()) {
break;
}
sb.append(delimiter);
}
return sb.toString();
}
static boolean taskRequiresProject(Properties props) {
Object task = props.get(RunnerProperties.TASK);
return task == null || ScanProperties.SCAN_TASK.equals(task);
}
static void writeProperties(File outputFile, Properties p) {
try (OutputStream output = new FileOutputStream(outputFile)) {
p.store(output, "Generated by sonar-runner");
} catch (Exception e) {
throw new IllegalStateException("Fail to export sonar-runner properties", e);
}
}
static void deleteQuietly(File f) {
try {
Files.walkFileTree(f.toPath(), new DeleteFileVisitor());
} catch (IOException e) {
// ignore
}
}
private static class DeleteFileVisitor extends SimpleFileVisitor<Path> {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.delete(file);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
Files.delete(file);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
if (exc == null) {
Files.delete(dir);
return FileVisitResult.CONTINUE;
} else {
// directory iteration failed; propagate exception
throw exc;
}
}
}
static void closeQuietly(@Nullable Closeable c) {
if (c == null) {
return;
}
try {
c.close();
} catch (IOException e) {
// ignore
}
}
}
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