Java tutorial
/******************************************************************************* * Copyright 2012 * Ubiquitous Knowledge Processing (UKP) Lab and FG Language Technology * Technische Universitt Darmstadt * * 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 de.tudarmstadt.ukp.clarin.webanno.api.dao; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class DebugUtils { private static final Log LOG = LogFactory.getLog(DebugUtils.class); public static void smallStack() { smallStack(0); } public static void smallStack(int aLimit) { StringBuilder sb = new StringBuilder(); Exception e = new RuntimeException(); boolean reqNewLine = true; boolean firstSkipped = false; int count = 0; for (StackTraceElement f : e.getStackTrace()) { if (!firstSkipped) { firstSkipped = true; continue; } if (f.getClassName().startsWith("de.tudarmstadt")) { if (reqNewLine) { sb.append("\n"); } sb.append(f); count++; } else { sb.append("."); reqNewLine = true; } if (aLimit > 0 && count >= aLimit) { break; } } LOG.debug(sb); } }