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comparison src/java/de/intevation/mxd/reader/WMSLayerReader.java @ 301:2cb2d8eb56ed

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Add WMS Support in the Reader classes and add new Reader classes for WMS Layers
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 05 Sep 2012 16:19:18 +0200
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children 5e3a40a84539
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300:215ae6199b95 301:2cb2d8eb56ed
1 /*
2 * Copyright (c) 2011 by Intevation GmbH, Germany <info@intevation.de>
3 *
4 * This file is part of MXD2map.
5 *
6 * This program is free software under the LGPL (>=v2.1)
7 * Read the file LICENCE.txt coming with the software for details
8 * or visit http://www.gnu.org/licenses/ if it does not exist.
9 *
10 * MXD2map has been developed on behalf of the
11 * Bundesamt fuer Seeschifffahrt und Hydrographie (BSH) in Hamburg
12 * by Intevation GmbH.
13 *
14 * Authors:
15 * Raimund Renkert <raimund.renkert@intevation.de>
16 * Bjoern Schilberg <bjoern.schilberg@intevation.de>
17 * Stephan Holl <stephan.holl@intevation.de>
18 */
19
20 package de.intevation.mxd.reader;
21
22 import java.io.IOException;
23
24 import org.apache.log4j.Logger;
25
26 import com.esri.arcgis.carto.ILayer;
27 import com.esri.arcgis.carto.IFeatureRenderer;
28 import com.esri.arcgis.carto.WMSMapLayer;
29 import com.esri.arcgis.carto.WMSGroupLayer;
30 import com.esri.arcgis.carto.WMSLayer;
31 import com.esri.arcgis.gisclient.IWMSServiceDescription;
32 import com.esri.arcgis.gisclient.IWMSLayerDescription;
33 import com.esri.arcgis.geometry.Envelope;
34
35 import org.w3c.dom.Element;
36
37 import de.intevation.mxd.utils.MapToXMLUtils;
38
39
40 /**
41 * Reads Layer information.
42 *
43 * @author <a href="mailto:aheinecke@intevation.de">Andre Heinecke</a>
44 */
45 public class WMSLayerReader {
46
47 /**
48 * The logger.
49 */
50 private static final Logger logger =
51 Logger.getLogger(FeatureLayerReader.class);
52
53 /**
54 * Privte member.
55 */
56 private WMSLayer layer;
57 private MapToXMLUtils util;
58 private int invalidLayerCount;
59
60 /**
61 * Constructor with layer.
62 *
63 * @param layer The ArcGIS layer object.
64 */
65 public WMSLayerReader(ILayer layer)
66 throws Exception {
67 if(layer instanceof WMSLayer) {
68 this.layer = (WMSLayer)layer;
69 invalidLayerCount = 0;
70 }
71 else {
72 throw new Exception("Not an instance of WMSLayer: " +
73 layer.getClass().toString());
74 }
75 }
76
77 /**
78 * Setter for XML document helper.
79 *
80 * @param util The helper for storing map information.
81 */
82 public void setUtil(MapToXMLUtils util) {
83 this.util = util;
84 }
85
86 /**
87 * Reads the Layer content.
88 *
89 * @return The layer XML element.
90 */
91 public Element read()
92 throws IOException{
93 logger.debug("read()");
94 Element layerElement = null;
95 try {
96 layerElement = util.addLayer();
97 }
98 catch(Exception e) {
99 logger.error("Failed to create DOM-Element for Layer.");
100 return null;
101 }
102 try {
103 layerElement.setAttribute("name", layer.getName());
104 }
105 catch(IOException ioe) {
106 logger.warn(
107 "Could not read layer name." +
108 " Stopped reading layer.");
109 throw new IOException("Error reading layer name.");
110 }
111
112 try {
113 layerElement.setAttribute("min_scale",
114 String.valueOf(layer.getMinimumScale()));
115 }
116 catch(IOException ioe) {
117 logger.warn("Could not read minimum scale.");
118 }
119
120 try {
121 layerElement.setAttribute("max_scale",
122 String.valueOf(layer.getMaximumScale()));
123 }
124 catch(IOException ioe) {
125 logger.warn(
126 "Could not read maximum scale.");
127 }
128
129 try {
130 if(layer.isVisible()) {
131 layerElement.setAttribute("status", "on");
132 }
133 else {
134 layerElement.setAttribute("status", "off");
135 }
136 }
137 catch(IOException ioe) {
138 logger.warn(
139 "Could not read layer status." +
140 " Setting layer status to \"on\".");
141 layerElement.setAttribute("status", "on");
142 }
143
144 layerElement.setAttribute("connection_type", "WMS");
145
146 try{
147 // Set the WMS Connection parameters
148 IWMSServiceDescription wmsconn = layer.getWMSServiceDescription();
149
150 String connectionURL = wmsconn.getBaseURL("GetMap", "Get");
151 if (!connectionURL.endsWith("?")) {
152 connectionURL += "?";
153 }
154 layerElement.setAttribute("connection", connectionURL);
155 logger.debug(connectionURL);
156 layerElement.setAttribute("imageType", wmsconn.getImageFormat(0));
157 logger.debug(wmsconn.getImageFormat(0));
158 if (wmsconn.getSRSCount() > 0) {
159 layerElement.setAttribute("projection", wmsconn.getSRS(0));
160 logger.debug(wmsconn.getSRS(0));
161 }
162 layerElement.setAttribute("wms_server_version", wmsconn.getWMSVersion());
163 logger.debug(wmsconn.getWMSVersion());
164 }
165 catch(Exception e) {
166 logger.debug(e);
167 logger.error("Error Setting Connection parameters. " + layer.getName());
168 }
169
170 try{
171 // Set the WMS Layer parameters
172 IWMSLayerDescription wmslayer = layer.getWMSLayerDescription();
173 layerElement.setAttribute("wms_name", wmslayer.getName());
174 }
175 catch(Exception e) {
176 logger.debug(e);
177 logger.error("Error Setting Layer parameters. " + layer.getName());
178 }
179 return layerElement;
180 }
181 }
182 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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