diff --git a/prism/src/common/StackTraceHelper.java b/prism/src/common/StackTraceHelper.java new file mode 100644 index 00000000..e3449688 --- /dev/null +++ b/prism/src/common/StackTraceHelper.java @@ -0,0 +1,69 @@ +//============================================================================== +// +// Copyright (c) 2018- +// Authors: +// * Joachim Klein (TU Dresden) +// +//------------------------------------------------------------------------------ +// +// This file is part of PRISM. +// +// PRISM is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2 of the License, or +// (at your option) any later version. +// +// PRISM is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with PRISM; if not, write to the Free Software Foundation, +// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +//============================================================================== + +package common; + +/** Helper class for converting stack traces to strings for output */ +public class StackTraceHelper +{ + /** Default limit for number of lines in a stack trace */ + public static final int DEFAULT_STACK_TRACE_LIMIT = 25; + + /** + * Get a string representation of the stack trace for the Throwable + * (up to the given limit of lines). + * @param throwable the throwable + * @param limit the limit + */ + public static String asString(Throwable throwable, int limit) + { + return asString(throwable.getStackTrace(), limit); + } + + /** + * Get a string representation of the stack trace for the given stack trace array + * (up to the given limit of lines). + * @param elements array of stack trace elements (zero-th element is top of stack) + * @param limit the limit (0 = no limit) + */ + public static String asString(StackTraceElement[] elements, int limit) + { + StringBuilder sb = new StringBuilder(); + + int i = 0; + for (StackTraceElement element : elements) { + if (limit != 0 && i++ > limit) { + sb.append(" ....\n"); + break; + } + sb.append(" at "); + sb.append(element); + sb.append("\n"); + } + + return sb.toString(); + } +}