001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.jblas; 025 026 import java.util.ArrayList; 027 import java.util.Collection; 028 import java.util.List; 029 030 import org.jblas.DoubleMatrix; 031 import org.ujmp.core.util.AbstractPlugin; 032 033 public class Plugin extends AbstractPlugin { 034 035 private final List<Object> dependencies = new ArrayList<Object>(); 036 037 private final List<String> neededClasses = new ArrayList<String>(); 038 039 public Plugin() { 040 dependencies.add("ujmp-core"); 041 dependencies.add("jblas.jar"); 042 neededClasses.add("org.jblas.DoubleMatrix"); 043 } 044 045 public String getDescription() { 046 return "interface to JBlas"; 047 } 048 049 public Collection<Object> getDependencies() { 050 return dependencies; 051 } 052 053 public Collection<String> getNeededClasses() { 054 return neededClasses; 055 } 056 057 /** 058 * perform an additional check whether the native library has been loaded 059 * successfully or not 060 */ 061 public boolean isAvailable() { 062 if (super.isAvailable()) { 063 try { 064 new DoubleMatrix(2, 1).mmul(new DoubleMatrix(1, 2)); 065 return true; 066 } catch (Throwable t) { 067 return false; 068 } 069 } else { 070 return false; 071 } 072 } 073 074 }