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/*
* Copyright (c) 2007 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.exceptions.stacktrace;
import org.mockito.exceptions.stacktrace.StackTraceCleaner;
import org.mockito.internal.configuration.plugins.Plugins;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
public class StackTraceFilter implements Serializable {
static final long serialVersionUID = -5499819791513105700L;
private static final StackTraceCleaner CLEANER =
Plugins.getStackTraceCleanerProvider().getStackTraceCleaner(new DefaultStackTraceCleaner());
/**
* Example how the filter works (+/- means good/bad):
* [a+, b+, c-, d+, e+, f-, g+] -> [a+, b+, d+, e+, g+]
* Basically removes all bad from the middle.
* <strike>If any good are in the middle of bad those are also removed.</strike>
*/
public StackTraceElement[] filter(StackTraceElement[] target, boolean keepTop) {
//TODO: profile
//TODO: investigate "keepTop" commit history - no effect!
final List<StackTraceElement> filtered = new ArrayList<StackTraceElement>();
for (StackTraceElement element : target) {
if (CLEANER.isIn(element)) {
filtered.add(element);
}
}
StackTraceElement[] result = new StackTraceElement[filtered.size()];
return filtered.toArray(result);
}
/**
* Finds the source file of the target stack trace.
* Returns the default value if source file cannot be found.
*/
public String findSourceFile(StackTraceElement[] target, String defaultValue) {
for (StackTraceElement e : target) {
if (CLEANER.isIn(e)) {
return e.getFileName();
}
}
return defaultValue;
}
}
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