Mercurial > dive4elements > river

comparison artifacts/src/main/java/org/dive4elements/river/collections/AttributeParser.java @ 5838:5aa05a7a34b7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 15:23:37 +0200
parents flys-artifacts/src/main/java/org/dive4elements/river/collections/AttributeParser.java@bd047b71ab37
children 4897a58c8746
comparison
equal deleted inserted replaced
5837:d9901a08d0a6 5838:5aa05a7a34b7
1 package org.dive4elements.river.collections;
2
3 import java.util.List;
4 import java.util.Map;
5
6 import javax.xml.xpath.XPathConstants;
7
8 import org.apache.log4j.Logger;
9
10 import org.w3c.dom.Document;
11 import org.w3c.dom.Element;
12 import org.w3c.dom.Node;
13 import org.w3c.dom.NodeList;
14
15 import org.dive4elements.artifacts.ArtifactNamespaceContext;
16
17 import org.dive4elements.artifactdatabase.state.DefaultOutput;
18 import org.dive4elements.artifactdatabase.state.Facet;
19 import org.dive4elements.artifactdatabase.state.Output;
20 import org.dive4elements.artifactdatabase.state.Settings;
21
22 import org.dive4elements.artifacts.common.utils.XMLUtils;
23
24 import org.dive4elements.river.artifacts.model.ManagedDomFacet;
25 import org.dive4elements.river.exports.ChartSettings;
26
27 /**
28 * Access parts of the Attribute parts of a FLYSCollections description
29 * document.
30 */
31 public class AttributeParser {
32
33 /** Constant XPath that points to the outputmodes of an artifact. */
34 public static final String XPATH_ARTIFACT_OUTPUTMODES =
35 "/art:attribute/art:outputs/art:output";
36
37
38 private static Logger logger = Logger.getLogger(AttributeParser.class);
39
40
41 protected Document attributeDocument;
42
43 protected CollectionAttribute attribute;
44
45
46 public AttributeParser(Document attributeDocument) {
47 this.attributeDocument = attributeDocument;
48 }
49
50
51 public void parse() {
52 logger.debug("AttributeParser.parse");
53
54 attribute = new CollectionAttribute();
55
56 NodeList outs = (NodeList) XMLUtils.xpath(
57 attributeDocument,
58 XPATH_ARTIFACT_OUTPUTMODES,
59 XPathConstants.NODESET,
60 ArtifactNamespaceContext.INSTANCE);
61
62 int num = outs != null ? outs.getLength() : 0;
63
64 logger.debug("Attribute has " + num + " outputs.");
65
66 for (int i = 0; i < num; i++) {
67 Node out = outs.item(i);
68
69 parseOutput(out);
70 }
71 }
72
73
74 public CollectionAttribute getCollectionAttribute() {
75 if (attribute == null) {
76 parse();
77 }
78
79 return attribute;
80 }
81
82
83 public Document getAttributeDocument() {
84 return attributeDocument;
85 }
86
87
88 public Map<String, Output> getOuts() {
89 return attribute.getOutputs();
90 }
91
92
93 /**
94 * Access all facets.
95 * @return list of all facets.
96 */
97 public List<Facet> getFacets() {
98 return attribute.getFacets();
99 }
100
101
102 protected void parseOutput(Node out) {
103 String name = ((Element)out).getAttribute("name");
104
105 if (name.length() == 0) {
106 logger.warn("No Output name specified. Cancel parsing!");
107 return;
108 }
109
110 Output o = attribute.getOutput(name);
111
112 if (o == null) {
113 logger.debug("Create new output: " + name);
114
115 o = new DefaultOutput(name, null, null);
116 attribute.addOutput(name, o);
117 }
118
119 parseSettings(out, name);
120 parseItems(out, name);
121 }
122
123 private static final Node getChild(Element element, String name) {
124 NodeList children = element.getChildNodes();
125 for (int i = 0, N = children.getLength(); i < N; ++i) {
126 Node child = children.item(i);
127 if (child.getNodeType() == Node.ELEMENT_NODE
128 && child.getLocalName().equals(name)) {
129 return child;
130 }
131 }
132 return null;
133 }
134
135
136 protected void parseSettings(Node out, String outname) {
137 Node settingsNode = getChild((Element)out, "settings");
138
139 if (settingsNode == null) {
140 logger.debug("No Settings found for Output '" + outname + "'");
141 return;
142 }
143
144 Settings settings = ChartSettings.parse(settingsNode);
145 attribute.setSettings(outname, settings);
146 }
147
148
149 protected void parseItems(Node out, String outname) {
150 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
151 Element element = (Element)out;
152
153 NodeList themes = element.getElementsByTagNameNS(uri, "facet");
154
155 int num = themes.getLength();
156
157 logger.debug("Output has " + num + " themes.");
158
159 for (int i = 0; i < num; i++) {
160 Element theme = (Element) themes.item(i);
161 if (theme.getParentNode() == out) {
162 attribute.addFacet(outname, new ManagedDomFacet(theme));
163 }
164 }
165 }
166 }
167 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org