org.openrewrite.internal.ExceptionUtils Maven / Gradle / Ivy
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/*
* Copyright 2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openrewrite.internal;
import java.util.Collections;
import java.util.IdentityHashMap;
import java.util.Set;
import java.util.StringJoiner;
public class ExceptionUtils {
/**
* Shorten a stack trace to the first invocation of a particular class.
*
* @param t The original exception
* @param until Cut the stack trace when it reaches a method in this class.
* @return The sanitized stack trace
*/
public static String sanitizeStackTrace(Throwable t, Class until) {
StringJoiner sanitized = new StringJoiner("\n");
Throwable cause = t instanceof RecipeRunException ? t.getCause() : t;
sanitized.add(cause.getClass().getName() + ": " + cause.getLocalizedMessage());
int i = 0;
for (StackTraceElement stackTraceElement : cause.getStackTrace()) {
if (stackTraceElement.getClassName().equals(until.getName())) {
break;
}
if (i++ >= 16) {
sanitized.add(" ...");
break;
}
sanitized.add(" " + stackTraceElement);
}
return sanitized.toString();
}
public static boolean containsCircularReferences(Throwable exception) {
Set causes = Collections.newSetFromMap(new IdentityHashMap<>());
causes.add(exception);
boolean containsACircularReference = false;
while (exception != null && exception.getCause() != null) {
Throwable exceptionToFind = exception.getCause();
if (exceptionToFind != null) {
if (!causes.add(exceptionToFind)) {
containsACircularReference = true;
break;
} else {
exception = exceptionToFind;
}
} else {
exception = null;
}
}
return containsACircularReference;
}
}