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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.plugin.classanalysis;
import java.util.HashSet;
import java.util.Set;
/**
* Utility methods related to packages.
*
* @author Tony Vaagenes
* @author ollivir
*/
public class Packages {
public static class PackageMetaData {
public final Set<String> definedPackages;
public final Set<String> referencedExternalPackages;
public PackageMetaData(Set<String> definedPackages, Set<String> referencedExternalPackages) {
this.definedPackages = definedPackages;
this.referencedExternalPackages = referencedExternalPackages;
}
}
public static String packageName(String fullClassName) {
int index = fullClassName.lastIndexOf('.');
if (index == -1) {
return "";
} else {
return fullClassName.substring(0, index);
}
}
public static PackageMetaData analyzePackages(Set<ClassFileMetaData> allClasses) {
Set<String> definedPackages = new HashSet<>();
Set<String> referencedPackages = new HashSet<>();
for (ClassFileMetaData metaData : allClasses) {
definedPackages.add(packageName(metaData.getName()));
metaData.getReferencedClasses().forEach(className -> referencedPackages.add(packageName(className)));
}
referencedPackages.removeAll(definedPackages);
return new PackageMetaData(definedPackages, referencedPackages);
}
}
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