changeset 1426:fc8ff0ed64ca

Added client for CrossSectionKMService. flys-client/trunk@3369 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 08 Dec 2011 12:09:58 +0000
parents bc06a671ef60
children 60cd8c56ca58
files flys-client/ChangeLog flys-client/src/main/java/de/intevation/flys/client/client/services/CrossSectionKMService.java flys-client/src/main/java/de/intevation/flys/client/client/services/CrossSectionKMServiceAsync.java flys-client/src/main/java/de/intevation/flys/client/server/CrossSectionKMServiceImpl.java
diffstat 4 files changed, 190 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/flys-client/ChangeLog	Thu Dec 08 09:12:27 2011 +0000
+++ b/flys-client/ChangeLog	Thu Dec 08 12:09:58 2011 +0000
@@ -1,4 +1,11 @@
-2011-11-17  Raimund Renkert <raimund.renkert@intevation.de>
+2011-12-08	Felix Wolfsteller	<felix.wolfsteller@intevation.de>
+
+	* src/main/java/de/intevation/flys/client/server/CrossSectionKMServiceImpl.java,
+	  src/main/java/de/intevation/flys/client/client/services/CrossSectionKMServiceAsync.java,
+	  src/main/java/de/intevation/flys/client/client/services/CrossSectionKMService.java:
+	  Added client to CrossSectionKMService.
+
+2011-12-08  Raimund Renkert <raimund.renkert@intevation.de>
 
 	* src/main/java/de/intevation/flys/client/server/LoadArtifactServiceImpl.java,
 	  src/main/java/de/intevation/flys/client/server/CollectionItemAttributeServiceImpl.java,
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/CrossSectionKMService.java	Thu Dec 08 12:09:58 2011 +0000
@@ -0,0 +1,30 @@
+package de.intevation.flys.client.client.services;
+
+import java.util.Map;
+
+import com.google.gwt.user.client.rpc.RemoteService;
+import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
+
+import de.intevation.flys.client.shared.exceptions.ServerException;
+
+/**
+ * This interface provides access to CrossSectionKMService .
+ */
+@RemoteServiceRelativePath("cross-section-km")
+public interface CrossSectionKMService extends RemoteService {
+
+    /**
+     * @param serverUrl The url of the artifact server.
+     * @param locale The locale used for the request.
+     * @param artifact The artifact.
+     * @param data The data that should be inserted.
+     *
+     * @return the artifact which description might have been changed.
+     */
+    public Map<Integer,Double[]> getCrossSectionKMs(
+        String               locale,
+        Map<Integer, Double> data,
+        int                  nNeightbours)
+    throws ServerException;
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/CrossSectionKMServiceAsync.java	Thu Dec 08 12:09:58 2011 +0000
@@ -0,0 +1,18 @@
+package de.intevation.flys.client.client.services;
+
+import java.util.Map;
+
+import com.google.gwt.user.client.rpc.AsyncCallback;
+
+/**
+ * Talk-to interface for crosssectionkm service.
+ */
+public interface CrossSectionKMServiceAsync {
+
+    void getCrossSectionKMs(
+        String                locale,
+        Map<Integer, Double>  data,
+        int                   nNeighbours,
+        AsyncCallback<Map<Integer, Double[]>> cb);
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/server/CrossSectionKMServiceImpl.java	Thu Dec 08 12:09:58 2011 +0000
@@ -0,0 +1,134 @@
+package de.intevation.flys.client.server;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.xpath.XPathConstants;
+
+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 de.intevation.artifacts.common.ArtifactNamespaceContext;
+import de.intevation.artifacts.common.utils.XMLUtils;
+
+import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
+import de.intevation.artifacts.httpclient.http.HttpClient;
+import de.intevation.artifacts.httpclient.http.HttpClientImpl;
+
+import de.intevation.flys.client.shared.exceptions.ServerException;
+import de.intevation.flys.client.client.services.CrossSectionKMService;
+
+/**
+ * Interact with not documented service.
+ */
+public class CrossSectionKMServiceImpl
+extends      RemoteServiceServlet
+implements   CrossSectionKMService
+{
+    private static final Logger logger =
+        Logger.getLogger(CrossSectionKMServiceImpl.class);
+
+    /** XPath that points to the found cross section measurements. */
+    public static final String XPATH_CROSS_SECTIONS
+        = "/cross-sections/cross-section";
+
+    /** The error message key that is thrown if an error occured while getting
+     * new data. */
+    public static final String ERROR_GET_CROSS_SECTION
+        = "error_get_cross_section";
+
+
+    /**
+     * Fetches positions (kms) at which measurements for given cross-sections
+     * exists.
+     *
+     * @param data Map of Integer (cross-section-id) to km.
+     *
+     */
+    public Map<Integer,Double[]> getCrossSectionKMs(
+        String               locale,
+        Map<Integer, Double> data,
+        int                  nNeighbours)
+    throws ServerException
+    {
+        logger.info("CrossSectionKMService.getCrossSectionKMs");
+
+        String url = getServletContext().getInitParameter("server-url");
+
+        Document doc = XMLUtils.newDocument();
+
+        XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
+             doc,
+             ArtifactNamespaceContext.NAMESPACE_URI,
+             ArtifactNamespaceContext.NAMESPACE_PREFIX);
+        Element crossSection = ec.create("cross-sections");
+
+        doc.appendChild(crossSection);
+
+        for(Map.Entry<Integer, Double> oneCrossSection : data.entrySet()) {
+            Element cs = ec.create("cross-section");
+            cs.setAttribute("id", oneCrossSection.getKey().toString());
+            cs.setAttribute("km", oneCrossSection.getValue().toString());
+            cs.setAttribute("n", Integer.valueOf(nNeighbours).toString());
+            crossSection.appendChild(cs);
+        }
+
+        HttpClient client = new HttpClientImpl(url, locale);
+            logger.debug("Created httpclient");
+
+        try {
+            // Document should contain:
+            //   crosse-sections:
+            //     attribute(id), attribute(km) attribute(n)
+            Document response = client.callService(url, "cross-section-km", doc);
+           //<cross-sections><cross-section id="1"><line km="19.5" line-id="189"/>...
+
+            NodeList nodeList = (NodeList) XMLUtils.xpath(response,
+                XPATH_CROSS_SECTIONS,
+                XPathConstants.NODESET);
+
+            int num = nodeList.getLength();
+
+            Map<Integer, Double[]> result = new HashMap<Integer, Double[]>();
+
+            try{
+                for (int i = 0; i < num; i++) {
+                    Element csElement = (Element) nodeList.item(i);
+
+                    int idx = Integer.parseInt(csElement.getAttribute("id"));
+                    ArrayList<Double> kms = new ArrayList<Double>();
+
+                    NodeList lineNodes = csElement.getElementsByTagName("line");
+                    int numLines       = lineNodes.getLength();
+                    for (int k = 0; k < numLines; k++) {
+                        Element line = (Element) lineNodes.item(i);
+                        double d = Double.parseDouble(line.getAttribute("km"));
+                        kms.add(d);
+                    }
+
+                    Double[] doubles = new Double[kms.size()];
+                    kms.toArray(doubles);
+                    result.put(Integer.valueOf(idx), doubles);
+                }
+            }
+            catch(NumberFormatException nfe) {
+                logger.error("Response was not parsable");
+            }
+
+            return result;
+        }
+        catch (ConnectionException ce) {
+            logger.error("ConnectionExsp", ce);
+        }
+
+        logger.warn("CrossSectionKMService.getCrossSectionKMS() - FAILED");
+        throw new ServerException(ERROR_GET_CROSS_SECTION);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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