001/** 002 * Copyright (c) 2011, The University of Southampton and the individual contributors. 003 * All rights reserved. 004 * 005 * Redistribution and use in source and binary forms, with or without modification, 006 * are permitted provided that the following conditions are met: 007 * 008 * * Redistributions of source code must retain the above copyright notice, 009 * this list of conditions and the following disclaimer. 010 * 011 * * Redistributions in binary form must reproduce the above copyright notice, 012 * this list of conditions and the following disclaimer in the documentation 013 * and/or other materials provided with the distribution. 014 * 015 * * Neither the name of the University of Southampton nor the names of its 016 * contributors may be used to endorse or promote products derived from this 017 * software without specific prior written permission. 018 * 019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 029 */ 030package org.openimaj.examples.citation; 031 032import org.openimaj.OpenIMAJ; 033import org.openimaj.aop.classloader.ClassLoaderTransform; 034import org.openimaj.citation.ReferenceListener; 035import org.openimaj.citation.ReferencesClassTransformer; 036import org.openimaj.citation.annotation.output.StandardFormatters; 037import org.openimaj.image.FImage; 038import org.openimaj.image.ImageUtilities; 039import org.openimaj.image.feature.local.engine.DoGSIFTEngine; 040import org.openimaj.image.feature.local.keypoints.Keypoint; 041 042/** 043 * Example showing how to use the byte-code translating classloader to augment a 044 * program at runtime in order to extract references. See the <a 045 * href="http://blog.openimaj.org/2012/08/28/adding-references-to-code/" 046 * >blog-post</a> for more details. 047 * 048 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk) 049 */ 050public class ReferencesClassloaderExample { 051 /** 052 * Main method 053 * 054 * @param args 055 * ignored 056 * @throws Throwable 057 * if an error occurs 058 */ 059 public static void main(String[] args) throws Throwable { 060 // the classloader must be initialised before any other classes are used 061 if (ClassLoaderTransform.run(ReferencesClassloaderExample.class, args, new ReferencesClassTransformer())) 062 return; 063 064 // now we run some code that contains references 065 final FImage image = ImageUtilities.readF(OpenIMAJ.getLogoAsStream()); 066 067 final DoGSIFTEngine engine = new DoGSIFTEngine(); 068 for (final Keypoint keypoint : engine.findFeatures(image)) { 069 System.out.println(keypoint); 070 } 071 072 // and when we're done we print the collected citations 073 System.out.println(StandardFormatters.STRING.format(ReferenceListener.getReferences())); 074 } 075}