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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.dev.builder;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;
/**
* @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen Hult</a>
*/
public class DependencyResolver {
private static final Path DEPENDENCIES = Paths.get("dependencies");
public static void main(String[] args) throws IOException, XmlPullParserException {
final Set<String> blacklist = new HashSet<>(Arrays.asList(args).subList(1, args.length));
final Set<String> dependencies = new TreeSet<>();
Files.walkFileTree(Paths.get(args[0]), new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
if (!attrs.isRegularFile()) {
return FileVisitResult.CONTINUE;
}
if (!file.getFileName().equals(DEPENDENCIES)) {
return FileVisitResult.CONTINUE;
}
for (final String line : Files.readAllLines(file, StandardCharsets.UTF_8)) {
for (final String dependency : line.split(" ")) {
if (dependency == null || dependency.isEmpty()) {
continue;
}
final String[] arr = dependency.split(":");
if (arr.length != 5 || blacklist.contains(arr[0] + ":" + arr[1])) {
continue;
}
dependencies.add(dependency);
}
}
return FileVisitResult.CONTINUE;
}
});
for (final String dependency : dependencies) {
System.out.println(dependency);
}
}
}
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