Java tutorial
/*---------------- FILE HEADER KALYPSO ------------------------------------------ * * This file is part of kalypso. * Copyright (C) 2004 by: * * Technical University Hamburg-Harburg (TUHH) * Institute of River and coastal engineering * Denickestrae 22 * 21073 Hamburg, Germany * http://www.tuhh.de/wb * * and * * Bjoernsen Consulting Engineers (BCE) * Maria Trost 3 * 56070 Koblenz, Germany * http://www.bjoernsen.de * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Contact: * * E-Mail: * belger@bjoernsen.de * schlienger@bjoernsen.de * v.doemming@tuhh.de * * ---------------------------------------------------------------------------*/ package org.kalypso.model.wspm.pdb.ui.internal.gaf; import java.io.File; import java.io.PrintWriter; import java.math.BigDecimal; import java.util.Arrays; import java.util.Locale; import org.apache.commons.io.IOUtils; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Status; import org.kalypso.model.wspm.core.gml.classifications.IRoughnessClass; import org.kalypso.model.wspm.pdb.ui.internal.WspmPdbUiPlugin; import org.kalypso.model.wspm.pdb.ui.internal.i18n.Messages; import org.kalypso.model.wspm.ui.view.table.handler.RoughnessClassComparator; /** * Writes the roughness classes to a file. * * @author Holger Albert */ public class KstWriter { /** * The constructor. */ public KstWriter() { } public IStatus write(final IRoughnessClass[] roughnessClasses, final File file, IProgressMonitor monitor) { /* Monitor. */ if (monitor == null) monitor = new NullProgressMonitor(); /* The writer. */ PrintWriter writer = null; try { /* Monitor. */ monitor.beginTask(Messages.getString("KstWriter_0"), 100 * roughnessClasses.length); //$NON-NLS-1$ monitor.subTask(Messages.getString("KstWriter_1")); //$NON-NLS-1$ /* Create the writer. */ writer = new PrintWriter(file); /* Write the header line. */ writer.println("KENN\tm\tm^.33/s\t\"Oberflchenstruktur\""); //$NON-NLS-1$ /* Loop the roughness classes. */ Arrays.sort(roughnessClasses, new RoughnessClassComparator()); for (final IRoughnessClass roughnessClass : roughnessClasses) { /* Write the roughness class. */ writeRoughnessClass(roughnessClass, writer); /* Monitor. */ monitor.worked(100); } return new Status(IStatus.OK, WspmPdbUiPlugin.PLUGIN_ID, Messages.getString("KstWriter_3")); //$NON-NLS-1$ } catch (final Exception ex) { return new Status(IStatus.ERROR, WspmPdbUiPlugin.PLUGIN_ID, String.format(Messages.getString("KstWriter_4"), ex.getLocalizedMessage()), ex); //$NON-NLS-1$ } finally { /* Close the writer. */ IOUtils.closeQuietly(writer); /* Monitor. */ monitor.done(); } } private void writeRoughnessClass(final IRoughnessClass roughnessClass, final PrintWriter writer) { /* Create the line. */ final StringBuilder builder = new StringBuilder(); builder.append("%s\t"); //$NON-NLS-1$ builder.append("%s\t"); //$NON-NLS-1$ builder.append("%s\t"); //$NON-NLS-1$ builder.append("\"%s\""); //$NON-NLS-1$ /* Get the data to write. */ final String name = roughnessClass.getName(); String ksValue = "-1"; //$NON-NLS-1$ final BigDecimal ksValue1 = roughnessClass.getKsValue(); if (ksValue1 != null) ksValue = String.format(Locale.PRC, "%.3f", ksValue1.doubleValue()); //$NON-NLS-1$ String kstValue = "-1"; //$NON-NLS-1$ final BigDecimal kstValue1 = roughnessClass.getKstValue(); if (kstValue1 != null) kstValue = String.format(Locale.PRC, "%.1f", kstValue1.doubleValue()); //$NON-NLS-1$ String comment = ""; //$NON-NLS-1$ final String comment1 = roughnessClass.getComment(); if (comment1 != null) comment = comment1; /* Write the line. */ writer.format(Locale.PRC, builder.toString(), name, ksValue, kstValue, comment); writer.println(); } }