Mercurial > dive4elements > gnv-client

comparison gnv-artifacts/src/main/java/de/intevation/gnv/utils/MetaWriter.java @ 647:bb0aa1f81280

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Added missing class MetaWriter from last commit. gnv-artifacts/trunk@734 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 05 Mar 2010 07:18:52 +0000
parents
children 6eccb68a8b99
comparison
equal deleted inserted replaced
646:c8749d83d9b6 647:bb0aa1f81280
1 package de.intevation.gnv.utils;
2
3 import de.intevation.artifacts.ArtifactNamespaceContext;
4 import de.intevation.artifacts.CallContext;
5
6 import de.intevation.artifactdatabase.XMLUtils;
7
8 import de.intevation.gnv.artifacts.context.GNVArtifactContext;
9 import de.intevation.gnv.wms.LayerInfo;
10
11 import java.io.File;
12 import java.io.FileNotFoundException;
13 import java.io.FileOutputStream;
14 import java.io.IOException;
15 import java.io.OutputStream;
16
17 import org.apache.log4j.Logger;
18
19 import org.w3c.dom.Document;
20 import org.w3c.dom.Element;
21
22 /**
23 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
24 */
25 public class MetaWriter {
26
27 private static Logger logger = Logger.getLogger(MetaWriter.class);
28
29 public static final String NODE_MAPSERVER = "mapserver";
30 public static final String NODE_SERVER = "server";
31 public static final String NODE_MAP = "map";
32
33 public static final String META_FILE_NAME = "meta.xml";
34 public static final String ISOLINES_NAME = "isolines.shp";
35 public static final String POLYGON_NAME = "polygons.shp";
36
37 private MetaWriter() {
38 }
39
40 public static Document writeHorizontalcrosssectionMeta(
41 CallContext context,
42 String uuid,
43 String path,
44 String paramType)
45 {
46 Document meta = XMLUtils.newDocument();
47 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
48 meta,
49 ArtifactNamespaceContext.NAMESPACE_URI,
50 ArtifactNamespaceContext.NAMESPACE_PREFIX);
51
52 Element root = creator.create("meta");
53 meta.appendChild(root);
54
55 writeAbstractMeta(context, meta, root);
56 writePolygonMeta(context, meta, root, uuid, path, paramType);
57 writeIsolineMeta(context, meta, root, uuid, path, paramType);
58
59 try {
60 File metaFile = new File(path, META_FILE_NAME);
61
62 if (!metaFile.createNewFile() || !metaFile.canWrite()) {
63 logger.error("Error while writing meta file: "+metaFile.toString());
64 return null;
65 }
66
67 OutputStream out = null;
68 boolean success = false;
69 try {
70 out = new FileOutputStream(metaFile);
71 success = XMLUtils.toStream(meta, out);
72 }
73 finally {
74 if (out != null) {
75 try { out.close(); }
76 catch (IOException ioe) {}
77 }
78 }
79
80 if (!success && metaFile.exists()) {
81 metaFile.delete();
82 }
83
84 return success ? meta : null;
85 }
86 catch (FileNotFoundException fnfe) {
87 logger.error(fnfe);
88 }
89 catch (IOException ioe) {
90 logger.error(ioe, ioe);
91 }
92
93 return meta;
94 }
95
96
97 public static void writeAbstractMeta(
98 CallContext callContext,
99 Document document,
100 Element meta
101 ) {
102 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
103 document,
104 ArtifactNamespaceContext.NAMESPACE_URI,
105 ArtifactNamespaceContext.NAMESPACE_PREFIX);
106
107 GNVArtifactContext context =
108 (GNVArtifactContext) callContext.globalContext();
109
110 String server = (String)
111 context.get(GNVArtifactContext.MAPSERVER_SERVER_PATH_KEY);
112
113 String map = (String)
114 context.get(GNVArtifactContext.MAPSERVER_MAP_PATH_KEY);
115
116 logger.debug("MAPSERVER PATH: " + server);
117 logger.debug("MAP PATH: " + map);
118
119 Element mapserver = creator.create(NODE_MAPSERVER);
120 Element serverPath = creator.create(NODE_SERVER);
121 Element mapPath = creator.create(NODE_MAP);
122
123 mapPath.setTextContent(map);
124 serverPath.setTextContent(server);
125
126 mapserver.appendChild(serverPath);
127 mapserver.appendChild(mapPath);
128 meta.appendChild(mapserver);
129 }
130
131
132 public static void writePolygonMeta(
133 CallContext context,
134 Document document,
135 Element meta,
136 String uuid,
137 String path,
138 String paramType
139 ) {
140 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
141 document,
142 ArtifactNamespaceContext.NAMESPACE_URI,
143 ArtifactNamespaceContext.NAMESPACE_PREFIX);
144
145 Element layer = creator.create(LayerInfo.LAYER);
146 Element model = creator.create(LayerInfo.LAYER_MODEL);
147 Element name = creator.create(LayerInfo.LAYER_NAME);
148 Element type = creator.create(LayerInfo.LAYER_TYPE);
149 Element status = creator.create(LayerInfo.LAYER_STATUS);
150 Element data = creator.create(LayerInfo.LAYER_DATA);
151
152 model.setTextContent(paramType);
153 name.setTextContent(uuid);
154 type.setTextContent("POLYGON");
155 status.setTextContent("DEFAULT");
156 data.setTextContent(POLYGON_NAME);
157
158 layer.appendChild(model);
159 layer.appendChild(name);
160 layer.appendChild(type);
161 layer.appendChild(status);
162 layer.appendChild(data);
163
164 meta.appendChild(layer);
165 }
166
167
168 public static void writeIsolineMeta(
169 CallContext context,
170 Document document,
171 Element meta,
172 String uuid,
173 String path,
174 String paramType
175 ) {
176 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
177 document,
178 ArtifactNamespaceContext.NAMESPACE_URI,
179 ArtifactNamespaceContext.NAMESPACE_PREFIX);
180
181 Element layer = creator.create(LayerInfo.LAYER);
182 Element model = creator.create(LayerInfo.LAYER_MODEL);
183 Element name = creator.create(LayerInfo.LAYER_NAME);
184 Element type = creator.create(LayerInfo.LAYER_TYPE);
185 Element status = creator.create(LayerInfo.LAYER_STATUS);
186 Element data = creator.create(LayerInfo.LAYER_DATA);
187
188 model.setTextContent(paramType+"_isolines");
189 name.setTextContent(uuid);
190 type.setTextContent("LINE");
191 status.setTextContent("DEFAULT");
192 data.setTextContent(ISOLINES_NAME);
193
194 layer.appendChild(model);
195 layer.appendChild(name);
196 layer.appendChild(type);
197 layer.appendChild(status);
198 layer.appendChild(data);
199
200 meta.appendChild(layer);
201 }
202 }
203 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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