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annotate gwt-client/src/main/java/org/dive4elements/river/client/server/ServerInfoServiceImpl.java @ 9801:1d7a72a50183 3.2.x tip

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Assume Compose V2, consistently
author Tom Gottfried <tom@intevation.de>
date Thu, 23 Nov 2023 10:14:13 +0100
parents 0a5239a1e46e
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rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.server;
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10
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11 import java.util.HashMap;
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12 import java.util.Map;
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13
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14 import javax.xml.xpath.XPathConstants;
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15
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16 import org.apache.logging.log4j.Logger;
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17 import org.apache.logging.log4j.LogManager;
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18 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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19 import org.dive4elements.artifacts.common.utils.XMLUtils;
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20 import org.dive4elements.artifacts.httpclient.http.HttpClient;
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21 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
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22 import org.dive4elements.river.client.client.services.ServerInfoService;
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23 import org.w3c.dom.Document;
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24 import org.w3c.dom.Element;
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25 import org.w3c.dom.NodeList;
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26
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27 public class ServerInfoServiceImpl extends RemoteServiceServlet implements
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28 ServerInfoService {
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29
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30 // This works only because currently there is only one info transmitted
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31 private static final String XPATH_INFO = "/art:server/art:info";
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32
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33 private final Logger log = LogManager.getLogger(ServerInfoServiceImpl.class);
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34
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35 @Override
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36 public Map<String, String> getConfig(String locale) {
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37 Map<String, String> infoMap = new HashMap<String, String>();
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38 String url = getServletContext().getInitParameter("server-url");
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39
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40 Document doc = XMLUtils.newDocument();
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41
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42 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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43 doc,
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44 ArtifactNamespaceContext.NAMESPACE_URI,
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45 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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46
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47 doc.appendChild(ec.create("action"));
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48
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49 HttpClient client = new HttpClientImpl(url, locale);
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50
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51 try {
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52 Document res = client.callService(url, "server-info", doc);
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53
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54 NodeList info = (NodeList) XMLUtils.xpath(res,
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55 XPATH_INFO,
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56 XPathConstants.NODESET,
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57 ArtifactNamespaceContext.INSTANCE);
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58
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59 for (int n = 0; n < info.getLength(); n++) {
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60 Element el = (Element)info.item(n);
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61 String key = el.getAttributeNS(
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62 ArtifactNamespaceContext.NAMESPACE_URI, "key");
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63 String val = el.getAttributeNS(
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64 ArtifactNamespaceContext.NAMESPACE_URI, "value");
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65 infoMap.put(key, val);
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66
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67 log.debug("ServerInfoServiceImpl: " + key + "=" + val);
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68 }
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69 }
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70 catch (Exception ex) {
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71 log.error(ex, ex);
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72 }
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73
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74 return infoMap;
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75 }
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76
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77
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78 }
http://dive4elements.wald.intevation.org