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.zml.ui.chart.layer.themes; import java.util.Date; import org.joda.time.Period; import org.kalypso.commons.java.lang.Objects; import org.kalypso.contribs.eclipse.core.runtime.StatusUtilities; import org.kalypso.ogc.sensor.IAxis; import org.kalypso.ogc.sensor.IAxisRange; import org.kalypso.ogc.sensor.IObservation; import org.kalypso.ogc.sensor.ITupleModel; import org.kalypso.ogc.sensor.SensorException; import org.kalypso.ogc.sensor.metadata.ITimeseriesConstants; import org.kalypso.ogc.sensor.metadata.MetadataHelper; import org.kalypso.ogc.sensor.timeseries.AxisUtils; import org.kalypso.zml.core.diagram.data.IZmlLayerDataHandler; import org.kalypso.zml.ui.KalypsoZmlUI; import de.openali.odysseus.chart.framework.model.data.DataRange; import de.openali.odysseus.chart.framework.model.data.IDataRange; import de.openali.odysseus.chart.framework.model.mapper.ICoordinateMapper; /** * @author Dirk Kuch */ class ZmlBarLayerRangeHandler { private final ZmlBarLayer m_layer; private IDataRange<Double> m_targetRange; private IDataRange<Double> m_domainRange; public ZmlBarLayerRangeHandler(final ZmlBarLayer layer) { m_layer = layer; } public synchronized IDataRange<Double> getDomainRange() { if (m_domainRange == null) m_domainRange = calculateDomainRange(); return m_domainRange; } private IDataRange<Double> calculateDomainRange() { try { final IObservation observation = (IObservation) m_layer.getDataHandler().getAdapter(IObservation.class); if (Objects.isNull(observation)) return null; final org.kalypso.ogc.sensor.IAxis dateAxis = AxisUtils.findDateAxis(observation.getAxes()); final ITupleModel model = observation.getValues(m_layer.getDataHandler().getRequest()); final IAxisRange range = model.getRange(dateAxis); if (Objects.isNull(range)) return null; Date min = (Date) range.getLower(); Date max = (Date) range.getUpper(); final IAxis axis = m_layer.getDataHandler().getValueAxis(); if (axis == null) return null; // FIXME: instead using parameter type, distinguish between 'forward' and 'backward' sums final boolean isForward = ITimeseriesConstants.TYPE_POLDER_CONTROL.equals(axis.getType()); // The domain range is a bit longer, because we are working with sum values if (isForward) max = doAdjustMax(observation, max); else min = doAdjustMin(observation, min); final ICoordinateMapper mapper = m_layer.getCoordinateMapper(); final de.openali.odysseus.chart.framework.model.mapper.IAxis domainAxis = mapper.getDomainAxis(); final Double numMin = domainAxis.logicalToNumeric(min); final Double numMax = domainAxis.logicalToNumeric(max); return new DataRange(numMin, numMax); } catch (final SensorException e) { KalypsoZmlUI.getDefault().getLog().log(StatusUtilities.statusFromThrowable(e)); return null; } } private Date doAdjustMax(final IObservation observation, final Date max) { final Period timestep = MetadataHelper.getTimestep(observation.getMetadataList()); if (Objects.isNull(timestep)) return max; final long ms = Double.valueOf(timestep.toStandardSeconds().getSeconds() * 1000.0).longValue(); return new Date(max.getTime() + ms); } private Date doAdjustMin(final IObservation observation, final Date min) { final Period timestep = MetadataHelper.getTimestep(observation.getMetadataList()); if (Objects.isNull(timestep)) return min; final long ms = Double.valueOf(timestep.toStandardSeconds().getSeconds() * 1000.0).longValue(); return new Date(min.getTime() - ms); } public synchronized IDataRange<Double> getTargetRange() { if (m_targetRange == null) m_targetRange = calculateTargetRange(); return m_targetRange; } private IDataRange<Double> calculateTargetRange() { try { final IZmlLayerDataHandler handler = m_layer.getDataHandler(); final IObservation observation = (IObservation) handler.getAdapter(IObservation.class); if (Objects.isNull(observation)) return null; final ITupleModel model = observation.getValues(handler.getRequest()); final IAxis valueAxis = handler.getValueAxis(); if (valueAxis == null) return null; /** hack for polder control which consists of boolean values */ // FIXME: the axis is responsible for that! // axis should do this now, just remove and test final Class<?> dataClass = valueAxis.getDataClass(); if (Boolean.class.equals(dataClass)) return new DataRange<>(0.0, 1.0); final IAxisRange range = model.getRange(valueAxis); if (range == null) return null; final ICoordinateMapper mapper = m_layer.getCoordinateMapper(); final de.openali.odysseus.chart.framework.model.mapper.IAxis targetAxis = mapper.getTargetAxis(); final Double numMin = targetAxis.logicalToNumeric(range.getLower()); final Double numMax = targetAxis.logicalToNumeric(range.getUpper()); return new DataRange(numMin, numMax); } catch (final SensorException e) { KalypsoZmlUI.getDefault().getLog().log(StatusUtilities.statusFromThrowable(e)); return null; } } public synchronized void invalidateRange() { m_domainRange = null; m_targetRange = null; } }