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/*
* Copyright 2007 ZXing 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
*
* http://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 com.google.zxing;
/**
* The general exception class throw when something goes wrong during decoding of a barcode.
* This includes, but is not limited to, failing checksums / error correction algorithms, being
* unable to locate finder timing patterns, and so on.
*
* @author Sean Owen
*/
public abstract class ReaderException extends Exception {
// disable stack traces when not running inside test units
protected static boolean isStackTrace =
System.getProperty("surefire.test.class.path") != null;
protected static final StackTraceElement[] NO_TRACE = new StackTraceElement[0];
ReaderException() {
// do nothing
}
ReaderException(Throwable cause) {
super(cause);
}
@Override
public final synchronized Throwable fillInStackTrace() {
if (isStackTrace) {
return super.fillInStackTrace();
} else {
return this; // prevent stack traces from being taken
}
}
/**
* For testing only. Controls whether library exception classes include stack traces or not.
* Defaults to false, unless running in the project's unit testing harness.
*
* @param enabled if true, enables stack traces in library exception classes
* @since 3.5.0
*/
public static void setStackTrace(boolean enabled) {
isStackTrace = enabled;
}
}
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