| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.sis.internal.jaxb.gco; |
| |
| import javax.xml.bind.annotation.XmlType; |
| import javax.xml.bind.annotation.XmlElement; |
| import javax.xml.bind.annotation.adapters.XmlAdapter; |
| import org.apache.sis.internal.jaxb.gml.Measure; |
| import org.apache.sis.measure.Units; |
| |
| |
| /** |
| * The ISO 19103 {@code Distance} with a {@code unit of measure} defined, using the |
| * {@code gco} namespace linked to the {@code http://www.isotc211.org/2005/gco} URL. |
| * |
| * <p>This class is identical to {@link GO_Measure} except for the name of the element, |
| * which is {@code "Distance"}.</p> |
| * |
| * @author Cédric Briançon (Geomatys) |
| * @author Martin Desruisseaux (Geomatys) |
| * @version 0.8 |
| * @since 0.3 |
| * @module |
| */ |
| @XmlType(name = "Distance_PropertyType") |
| public final class GO_Distance extends XmlAdapter<GO_Distance, Double> { |
| /** |
| * A proxy representation of the {@code <gco:Distance>} element. |
| */ |
| @XmlElement(name = "Distance") |
| private Measure distance; |
| |
| /** |
| * Empty constructor used only by JAXB. |
| */ |
| public GO_Distance() { |
| } |
| |
| /** |
| * Constructs an adapter for the given value before marshalling. |
| * |
| * @param value the value. |
| * |
| * @todo The unit of measurement is fixed to metres for now because we do not have this information |
| * in current metadata interface. This will need to be revisited in a future SIS version if we |
| * replace the Double type by some quantity type. |
| */ |
| private GO_Distance(final Double value) { |
| distance = new Measure(value, Units.METRE); |
| distance.asXPointer = true; |
| } |
| |
| /** |
| * Allows JAXB to generate a Double object using the value found in the adapter. |
| * |
| * @param value the value wrapped in an adapter. |
| * @return the double value extracted from the adapter. |
| */ |
| @Override |
| public Double unmarshal(final GO_Distance value) { |
| if (value != null) { |
| final Measure distance = value.distance; |
| if (distance != null) { |
| return distance.value; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Allows JAXB to change the result of the marshalling process, according to the |
| * ISO 19115-3 standard and its requirements about {@code measures}. |
| * |
| * @param value the double value we want to integrate into a {@code <gco:Distance>} element. |
| * @return an adaptation of the double value, that is to say a double value surrounded |
| * by {@code <gco:Distance>} element, with an {@code uom} attribute. |
| */ |
| @Override |
| public GO_Distance marshal(final Double value) { |
| return (value != null) ? new GO_Distance(value) : null; |
| } |
| } |