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.exceptions.MatrixException;
034    import org.ujmp.core.util.StringUtil;
035    import org.ujmp.core.util.io.IntelligentFileWriter;
036    
037    public class ExportMatrixHTML {
038    
039            public static void toFile(File file, Matrix matrix, Object... parameters) throws IOException,
040                            MatrixException {
041                    IntelligentFileWriter writer = new IntelligentFileWriter(file);
042                    toWriter(writer, matrix, parameters);
043                    writer.close();
044            }
045    
046            public static void toStream(OutputStream outputStream, Matrix matrix, Object... parameters)
047                            throws IOException, MatrixException {
048                    OutputStreamWriter writer = new OutputStreamWriter(outputStream);
049                    toWriter(writer, matrix, parameters);
050                    writer.close();
051            }
052    
053            public static void toWriter(Writer out, Matrix m, Object... parameters) throws IOException,
054                            MatrixException {
055                    String EOL = System.getProperty("line.separator");
056    
057                    long rowCount = m.getRowCount();
058                    long colCount = m.getColumnCount();
059    
060                    out.append("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" ");
061                    out.append("\"http://www.w3.org/TR/html4/strict.dtd\">" + EOL);
062                    out.append("<body>" + EOL);
063                    out.append("<html>" + EOL + EOL);
064                    out.append("<table>" + EOL);
065                    for (int row = 0; row < rowCount; row++) {
066                            out.append("<tr>" + EOL);
067                            for (int col = 0; col < colCount; col++) {
068                                    out.append("<td>");
069                                    out.append(StringUtil.convert(m.getAsObject(row, col)));
070                                    out.append("</td>" + EOL);
071                            }
072                            out.append("</tr>" + EOL);
073                    }
074                    out.append("</table>" + EOL);
075                    out.append("</body>" + EOL);
076                    out.append("</html>" + EOL);
077            }
078    
079    }