Mercurial > mxd2map > mxd2map

annotate src/java/de/intevation/mxd/utils/MapToXMLUtils.java @ 34:7a927921eb6c

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Removed needless imports.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 12 Apr 2011 13:29:47 +0200
parents 40c0b4e5f91a
children 27577294f9ca
rev   line source
31
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8 package de.intevation.mxd.utils;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.w3c.dom.Document;
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13 import org.w3c.dom.Element;
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14 import org.w3c.dom.NodeList;
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15
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16 /**
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17 * Utility class to store map information in a XML structure.
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18 *
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19 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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20 */
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21 public class MapToXMLUtils
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22 {
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23 private Document root;
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24 private XMLUtils.ElementCreator creator;
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25
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26 public MapToXMLUtils() {
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27 this.root = XMLUtils.newDocument();
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28 creator = new XMLUtils.ElementCreator(root, "", "");
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29 }
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30
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31 /**
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32 * Create the top level map element.
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33 *
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34 * @return The new map element.
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35 */
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36 public Element createMap()
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37 throws Exception {
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38 Element map;
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39 NodeList list = root.getElementsByTagName("map");
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40 if(list == null || list.getLength() == 0){
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41 map = creator.create("map");
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42 root.appendChild(map);
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43 }
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44 else if(list.getLength() == 1){
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45 map = (Element)list.item(0);
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46 }
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47 else{
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48 throw new Exception("Error while creating map node.");
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49 }
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50 return map;
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51 }
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52
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53 /**
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54 * Add a layer element to the map.
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55 * @param name The layer name.
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56 * @return The layer element.
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57 */
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58 public Element addLayer()
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59 throws Exception {
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60 Element node = creator.create("layer");
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61 NodeList list = root.getElementsByTagName("map");
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62 if(list == null || list.getLength() == 0){
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63 throw new Exception("No map node found!");
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64 }
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65 else if(list.getLength() > 1) {
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66 throw new Exception("Found more than one map node." +
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67 " This should never happen!");
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68 }
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69 else {
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70 list.item(0).appendChild(node);
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71 return node;
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72 }
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73 }
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74
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75 /**
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76 * Add a renderer element to the map.
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77 * @param layer The parent layer element.
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78 * @return The renderer element.
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79 */
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80 public Element addRenderer(Element layer) {
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81 Element node = creator.create("renderer");
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82 layer.appendChild(node);
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83 return node;
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84 }
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85
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86 /**
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87 * Add a symbol element to the map.
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88 * @param renderer The parent renderer element.
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89 * @return The symbol element.
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90 */
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91 public Element addSymbol(Element renderer) {
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92 Element node = creator.create("symbol");
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93 renderer.appendChild(node);
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94 return node;
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95 }
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96
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97 /**
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98 * Print out the XML document.
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99 */
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100 public void print() {
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101 XMLUtils.toStream(root, System.out);
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102 }
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103 }
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