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.io; 025 026 import java.io.File; 027 import java.io.IOException; 028 import java.io.OutputStream; 029 import java.io.OutputStreamWriter; 030 import java.io.Writer; 031 032 import org.ujmp.core.Matrix; 033 import org.ujmp.core.util.io.IntelligentFileWriter; 034 035 public class ExportMatrixGML { 036 037 public static final void toFile(File file, Matrix m, Object... parameters) throws IOException { 038 IntelligentFileWriter w = new IntelligentFileWriter(file); 039 toWriter(w, m, parameters); 040 w.close(); 041 } 042 043 public static final void toStream(OutputStream out, Matrix m, Object... parameters) throws IOException { 044 OutputStreamWriter w = new OutputStreamWriter(out); 045 toWriter(w, m, parameters); 046 w.close(); 047 } 048 049 public static final void toWriter(Writer w, Matrix m, Object... parameters) throws IOException { 050 w.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"); 051 w.write("<graphml>\n"); 052 w.write("<key id=\"k0\" for=\"node\" attr.name=\"variableName\" attr.type=\"string\"></key>\n"); 053 w.write("<key id=\"k1\" for=\"node\" attr.name=\"description\" attr.type=\"string\"></key>\n"); 054 w 055 .write("<key id=\"k2\" for=\"edge\" attr.name=\"confidence\" attr.type=\"double\"><default>0.0</default></key>\n"); 056 w 057 .write("<key id=\"k3\" for=\"edge\" attr.name=\"directed\" attr.type=\"boolean\"><default>false</default></key>\n"); 058 w.write("<key id=\"k5\" for=\"node\" attr.name=\"xPos\" attr.type=\"string\"></key>\n"); 059 w.write("<key id=\"k6\" for=\"node\" attr.name=\"yPos\" attr.type=\"string\"></key>\n"); 060 061 w.write("<graph id=\"" + m.getLabel() + "\" edgedefault=\"undirected\">\n"); 062 063 for (int i = 0; i < m.getRowCount(); i++) { 064 w.write("<node id=\"node" + i + "\">\n"); 065 w.write("<data key=\"k0\">" + m.getRowLabel(i).replaceAll("[<>&]", "") + "</data>\n"); 066 // w.write("<data key=\"k5\">" + n.getPosX() + "</data>\n"); 067 // w.write("<data key=\"k6\">" + n.getPosY() + "</data>\n"); 068 w.write("</node>\n"); 069 } 070 071 int id = 0; 072 for (long[] c : m.allCoordinates()) { 073 if (m.getAsDouble(c) > 0.0) { 074 w.write("<edge id=\"edge" + (id++) + "\" "); 075 w.write("source=\"node" + c[Matrix.ROW] + "\" "); 076 w.write("target=\"node" + c[Matrix.COLUMN] + "\">\n"); 077 w.write("</edge>\n"); 078 } 079 } 080 w.write("</graph>\n"); 081 w.write("</graphml>"); 082 w.close(); 083 } 084 085 }