Mercurial > dive4elements > river
view gwt-client/src/main/java/org/dive4elements/river/client/server/DischargeInfoServiceImpl.java @ 5948:d7b9b3e3c61a
Make instantiation of saml.User easier.
Most of the parameters of the constructor can be taken from the
Assertion object, so there's no reason to pass them separately.
Also, trying to check the validity dates isn't useful for the single
sign on case. See comments in the hasExpired method.
author | Bernhard Herzog <bh@intevation.de> |
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date | Wed, 08 May 2013 17:56:14 +0200 |
parents | b96a293d30f3 |
children | ea9eef426962 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.client.server; import java.util.ArrayList; import java.util.List; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import org.apache.log4j.Logger; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import org.dive4elements.artifacts.common.ArtifactNamespaceContext; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException; import org.dive4elements.artifacts.httpclient.http.HttpClient; import org.dive4elements.artifacts.httpclient.http.HttpClientImpl; import org.dive4elements.river.client.shared.exceptions.ServerException; import org.dive4elements.river.client.client.services.DischargeInfoService; import org.dive4elements.river.client.shared.model.DischargeInfoObject; import org.dive4elements.river.client.shared.model.DischargeInfoObjectImpl; /** * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class DischargeInfoServiceImpl extends RemoteServiceServlet implements DischargeInfoService { private static final Logger logger = Logger.getLogger(DischargeInfoServiceImpl.class); public static final String ERROR_NO_DISCHARGEINFO_FOUND = "error_no_dischargeinfo_found"; public static final String XPATH_DISTANCES = "art:discharges/art:discharge"; public DischargeInfoObject[] getDischargeInfo( String locale, long gauge) throws ServerException { logger.info("DichargeInfoServiceImpl.getDischargeInfo"); String url = getServletContext().getInitParameter("server-url"); Document doc = XMLUtils.newDocument(); XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( doc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element gaugeEl = ec.create("gauge"); gaugeEl.setTextContent(String.valueOf(gauge)); doc.appendChild(gaugeEl); HttpClient client = new HttpClientImpl(url, locale); try { Document result = client.callService(url, "dischargeinfo", doc); logger.debug("Extract discharge info objects now."); DischargeInfoObject[] objects = extractDischargeInfoObjects(result); if (objects != null && objects.length > 0) { return objects; } } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_NO_DISCHARGEINFO_FOUND); } protected DischargeInfoObject[] extractDischargeInfoObjects( Document result ) throws ServerException { NodeList list = result.getElementsByTagName("discharge"); if (list == null || list.getLength() == 0) { logger.warn("No discharge info found."); throw new ServerException(ERROR_NO_DISCHARGEINFO_FOUND); } int num = list.getLength(); logger.debug("Response contains " + num + " objects."); List<DischargeInfoObject> objects = new ArrayList<DischargeInfoObject>(num); for (int i = 0; i < num; i++) { DischargeInfoObject obj = buildDischargeInfoObject( (Element)list.item(i)); if (obj != null) { objects.add(obj); } } logger.debug("Retrieved " + objects.size() + " discharges."); return (DischargeInfoObject[]) objects.toArray(new DischargeInfoObject[num]); } protected DischargeInfoObject buildDischargeInfoObject(Element node) { String desc = node.getAttribute("description").trim(); String start = node.getAttribute("start").trim(); String end = node.getAttribute("end").trim(); String bfgId = node.getAttribute("bfg-id").trim(); if (start.length() > 0 && end.length() > 0) { try { Integer startYear = Integer.valueOf(start); Integer endYear = Integer.valueOf(end); return new DischargeInfoObjectImpl( desc, startYear, endYear, bfgId); } catch (NumberFormatException nfe) { logger.warn(nfe.getLocalizedMessage()); } } logger.warn("Invalid distance info object found."); return null; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :