diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FileUploadService.java @ 2639:a78dafdd8590

Issue 657. Added file upload service to load a user defined shapefile. User the shapefile for wsplgen calculation and display a new layer. flys-artifacts/trunk@4292 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Wed, 25 Apr 2012 07:45:00 +0000
parents
children b484318ca9c6
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FileUploadService.java	Wed Apr 25 07:45:00 2012 +0000
@@ -0,0 +1,100 @@
+package de.intevation.flys.artifacts.services;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.FileNotFoundException;
+
+import org.apache.log4j.Logger;
+
+import org.apache.commons.codec.binary.Base64;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import de.intevation.artifacts.common.ArtifactNamespaceContext;
+import de.intevation.artifacts.common.utils.XMLUtils;
+import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
+import de.intevation.artifacts.common.utils.FileTools;
+
+import de.intevation.artifacts.CallMeta;
+import de.intevation.artifacts.GlobalContext;
+
+import de.intevation.flys.utils.FLYSUtils;
+
+/**
+ * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
+ */
+public class FileUploadService extends FLYSService {
+
+    /** The logger used in this service.*/
+    private static Logger logger = Logger.getLogger(FileUploadService.class);
+
+    /** XPath that points to the artifact uuid.*/
+    public static final String XPATH_ARTIFACT_UUID =
+        "/upload/artifact-uuid/text()";
+
+    /** XPath that points to the base64 encoded data.*/
+    public static final String XPATH_DATA = "/upload/data/text()";
+
+    public FileUploadService() {
+    }
+
+
+    @Override
+    protected Document doProcess(
+        Document data,
+        GlobalContext context,
+        CallMeta callMeta
+    ) {
+        logger.debug("FileUploadService.process");
+
+        String uuid = extractUuid(data);
+
+        byte[] fileData = extractData(data);
+        if (fileData != null) {
+            try {
+                String shapePath = FLYSUtils.getXPathString(
+                    FLYSUtils.XPATH_SHAPEFILE_DIR);
+
+                File artifactDir = FileTools.getDirectory(shapePath, uuid);
+                FileOutputStream fos =
+                    new FileOutputStream(artifactDir.getCanonicalPath() +
+                                         "/user-rgd.zip");
+                fos.write(fileData);
+                fos.close();
+            }
+            catch (IOException ioe) {
+                logger.warn(ioe, ioe);
+            }
+        }
+        else {
+            logger.debug("No data in uploaded xml.")
+        }
+
+        Document doc = XMLUtils.newDocument();
+        ElementCreator ec = new ElementCreator(doc, null, null);
+        Element resp = ec.create("response");
+        doc.appendChild(resp);
+
+        return doc;
+    }
+
+
+    protected String extractUuid(Document data) {
+        return XMLUtils.xpathString(
+            data, XPATH_ARTIFACT_UUID, ArtifactNamespaceContext.INSTANCE);
+    }
+
+
+    protected byte[] extractData(Document data) {
+        String b64Data = XMLUtils.xpathString(
+            data, XPATH_DATA, ArtifactNamespaceContext.INSTANCE);
+
+        if (b64Data != null && b64Data != "") {
+           byte[] fileData = Base64.decodeBase64(b64Data);
+           return fileData;
+        }
+        return null;
+    }
+}

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