Mercurial > dive4elements > river
comparison flys-client/src/main/java/org/dive4elements/river/client/server/ThemeListingServiceImpl.java @ 5834:f507086aa94b
Repaired internal references.
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 12:31:32 +0200 |
| parents | flys-client/src/main/java/de/intevation/flys/client/server/ThemeListingServiceImpl.java@37dce0f2f63b |
| children | 821a02bbfb4e |
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| 5833:a2bdc0f524e8 | 5834:f507086aa94b |
|---|---|
| 1 package de.intevation.flys.client.server; | |
| 2 | |
| 3 import com.google.gwt.user.server.rpc.RemoteServiceServlet; | |
| 4 | |
| 5 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 6 | |
| 7 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; | |
| 8 | |
| 9 import de.intevation.artifacts.httpclient.http.HttpClient; | |
| 10 import de.intevation.artifacts.httpclient.http.HttpClientImpl; | |
| 11 | |
| 12 import de.intevation.flys.client.client.services.ThemeListingService; | |
| 13 | |
| 14 import de.intevation.flys.client.shared.exceptions.ServerException; | |
| 15 | |
| 16 import de.intevation.flys.client.shared.model.Style; | |
| 17 | |
| 18 import java.util.HashMap; | |
| 19 import java.util.Map; | |
| 20 | |
| 21 import javax.xml.xpath.XPathConstants; | |
| 22 | |
| 23 import org.apache.log4j.Logger; | |
| 24 | |
| 25 import org.w3c.dom.Document; | |
| 26 import org.w3c.dom.Element; | |
| 27 import org.w3c.dom.NodeList; | |
| 28 | |
| 29 /** | |
| 30 * This interface provides a method to list themes filtered by name. | |
| 31 * | |
| 32 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> | |
| 33 */ | |
| 34 public class ThemeListingServiceImpl | |
| 35 extends RemoteServiceServlet | |
| 36 implements ThemeListingService | |
| 37 { | |
| 38 private static final Logger logger = | |
| 39 Logger.getLogger(ThemeListingServiceImpl.class); | |
| 40 | |
| 41 | |
| 42 private static final String XPATH_THEME_GROUPS = "/themes/themegroup"; | |
| 43 /** The error message key that is thrown if an error occured while reading | |
| 44 * the supported rivers from server.*/ | |
| 45 public static final String ERROR_NO_GROUPS_FOUND = "error_no_groups_found"; | |
| 46 | |
| 47 | |
| 48 public Map<String, Style> list(String locale, String name) | |
| 49 throws ServerException | |
| 50 { | |
| 51 String url = getServletContext().getInitParameter("server-url"); | |
| 52 | |
| 53 Document doc = XMLUtils.newDocument(); | |
| 54 | |
| 55 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( | |
| 56 doc, | |
| 57 null, | |
| 58 null); | |
| 59 | |
| 60 Element e = ec.create("theme"); | |
| 61 ec.addAttr(e, "name", name); | |
| 62 doc.appendChild(e); | |
| 63 HttpClient client = new HttpClientImpl(url, locale); | |
| 64 | |
| 65 try { | |
| 66 Document res = client.callService(url, "themelisting", doc); | |
| 67 | |
| 68 NodeList themeGroups = (NodeList) XMLUtils.xpath( | |
| 69 res, | |
| 70 XPATH_THEME_GROUPS, | |
| 71 XPathConstants.NODESET, | |
| 72 null); | |
| 73 | |
| 74 if (themeGroups == null || themeGroups.getLength() == 0) { | |
| 75 throw new ServerException(ERROR_NO_GROUPS_FOUND); | |
| 76 } | |
| 77 | |
| 78 int count = themeGroups.getLength(); | |
| 79 | |
| 80 Map<String, Style> theStyles = new HashMap<String, Style>(count); | |
| 81 | |
| 82 for (int i = 0; i < count; i++) { | |
| 83 Element tmp = (Element)themeGroups.item(i); | |
| 84 | |
| 85 String groupName = tmp.getAttribute("name"); | |
| 86 NodeList theTheme = (NodeList) XMLUtils.xpath( | |
| 87 tmp, | |
| 88 "theme", | |
| 89 XPathConstants.NODESET, | |
| 90 null); | |
| 91 | |
| 92 for (int j = 0; j < theTheme.getLength(); j++) { | |
| 93 Element elem = (Element) theTheme.item(j); | |
| 94 theStyles.put(groupName, StyleHelper.getStyle(elem)); | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 return theStyles; | |
| 99 } | |
| 100 catch (ConnectionException ce) { | |
| 101 logger.error(ce, ce); | |
| 102 } | |
| 103 | |
| 104 throw new ServerException(ERROR_NO_GROUPS_FOUND); | |
| 105 } | |
| 106 } | |
| 107 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |