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.objectmatrix.calculation; 025 026 import java.util.Collection; 027 028 import org.ujmp.core.Coordinates; 029 import org.ujmp.core.Matrix; 030 import org.ujmp.core.enums.ValueType; 031 import org.ujmp.core.exceptions.MatrixException; 032 033 public class Concatenation extends AbstractObjectCalculation { 034 private static final long serialVersionUID = -2428322597419645314L; 035 036 private long[] positions = null; 037 038 private long[] size = Coordinates.ZERO2D; 039 040 private ValueType valueType = null; 041 042 public Concatenation(int dimension, Matrix... matrices) { 043 super(dimension, matrices); 044 valueType = matrices[0].getValueType(); 045 positions = new long[matrices.length]; 046 long pos = 0; 047 for (int i = 0; i < matrices.length; i++) { 048 Matrix m = matrices[i]; 049 if (!valueType.equals(m.getValueType())) { 050 valueType = ValueType.OBJECT; 051 } 052 positions[i] = pos; 053 pos += m.getSize(dimension); 054 size = Coordinates.max(size, m.getSize()); 055 } 056 size[dimension] = pos; // set total size 057 } 058 059 public Concatenation(int dimension, Collection<Matrix> matrices) { 060 this(dimension, matrices.toArray(new Matrix[matrices.size()])); 061 } 062 063 public Object getObject(long... coordinates) throws MatrixException { 064 int i = 0; 065 for (; i < positions.length; i++) { 066 if (positions[i] > coordinates[getDimension()]) { 067 break; 068 } 069 } 070 i--; 071 Matrix m = getSources()[i]; 072 long[] c = Coordinates.copyOf(coordinates); 073 c[getDimension()] = c[getDimension()] - positions[i]; 074 return m.getAsObject(c); 075 } 076 077 public long[] getSize() { 078 return size; 079 } 080 081 public void setObject(Object value, long... coordinates) throws MatrixException { 082 } 083 084 public final ValueType getValueType() { 085 return valueType; 086 } 087 088 }