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.core.util.matrices; 025 026 import org.ujmp.core.longmatrix.stub.AbstractDenseLongMatrix2D; 027 028 public class MatrixMemoryUsage extends AbstractDenseLongMatrix2D { 029 private static final long serialVersionUID = -3863745960302379726L; 030 031 public MatrixMemoryUsage() { 032 setLabel("Memory Usage"); 033 } 034 035 public long getLong(int row, int column) { 036 switch (row) { 037 case 0: 038 return Runtime.getRuntime().freeMemory(); 039 case 1: 040 return Runtime.getRuntime().maxMemory(); 041 default: 042 return Runtime.getRuntime().totalMemory(); 043 } 044 } 045 046 public long getLong(long row, long column) { 047 switch ((int) row) { 048 case 0: 049 return Runtime.getRuntime().freeMemory(); 050 case 1: 051 return Runtime.getRuntime().maxMemory(); 052 default: 053 return Runtime.getRuntime().totalMemory(); 054 } 055 } 056 057 public long[] getSize() { 058 return new long[] { 3, 1 }; 059 } 060 061 public void setLong(long value, long row, long column) { 062 } 063 064 public void setLong(long value, int row, int column) { 065 } 066 067 068 public boolean isReadOnly() { 069 return true; 070 } 071 072 }