Mercurial > dive4elements > river
comparison 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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| 2638:ccad7a6ddaa4 | 2639:a78dafdd8590 |
|---|---|
| 1 package de.intevation.flys.artifacts.services; | |
| 2 | |
| 3 import java.io.File; | |
| 4 import java.io.FileOutputStream; | |
| 5 import java.io.IOException; | |
| 6 import java.io.FileNotFoundException; | |
| 7 | |
| 8 import org.apache.log4j.Logger; | |
| 9 | |
| 10 import org.apache.commons.codec.binary.Base64; | |
| 11 | |
| 12 import org.w3c.dom.Document; | |
| 13 import org.w3c.dom.Element; | |
| 14 | |
| 15 import de.intevation.artifacts.common.ArtifactNamespaceContext; | |
| 16 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 17 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; | |
| 18 import de.intevation.artifacts.common.utils.FileTools; | |
| 19 | |
| 20 import de.intevation.artifacts.CallMeta; | |
| 21 import de.intevation.artifacts.GlobalContext; | |
| 22 | |
| 23 import de.intevation.flys.utils.FLYSUtils; | |
| 24 | |
| 25 /** | |
| 26 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> | |
| 27 */ | |
| 28 public class FileUploadService extends FLYSService { | |
| 29 | |
| 30 /** The logger used in this service.*/ | |
| 31 private static Logger logger = Logger.getLogger(FileUploadService.class); | |
| 32 | |
| 33 /** XPath that points to the artifact uuid.*/ | |
| 34 public static final String XPATH_ARTIFACT_UUID = | |
| 35 "/upload/artifact-uuid/text()"; | |
| 36 | |
| 37 /** XPath that points to the base64 encoded data.*/ | |
| 38 public static final String XPATH_DATA = "/upload/data/text()"; | |
| 39 | |
| 40 public FileUploadService() { | |
| 41 } | |
| 42 | |
| 43 | |
| 44 @Override | |
| 45 protected Document doProcess( | |
| 46 Document data, | |
| 47 GlobalContext context, | |
| 48 CallMeta callMeta | |
| 49 ) { | |
| 50 logger.debug("FileUploadService.process"); | |
| 51 | |
| 52 String uuid = extractUuid(data); | |
| 53 | |
| 54 byte[] fileData = extractData(data); | |
| 55 if (fileData != null) { | |
| 56 try { | |
| 57 String shapePath = FLYSUtils.getXPathString( | |
| 58 FLYSUtils.XPATH_SHAPEFILE_DIR); | |
| 59 | |
| 60 File artifactDir = FileTools.getDirectory(shapePath, uuid); | |
| 61 FileOutputStream fos = | |
| 62 new FileOutputStream(artifactDir.getCanonicalPath() + | |
| 63 "/user-rgd.zip"); | |
| 64 fos.write(fileData); | |
| 65 fos.close(); | |
| 66 } | |
| 67 catch (IOException ioe) { | |
| 68 logger.warn(ioe, ioe); | |
| 69 } | |
| 70 } | |
| 71 else { | |
| 72 logger.debug("No data in uploaded xml.") | |
| 73 } | |
| 74 | |
| 75 Document doc = XMLUtils.newDocument(); | |
| 76 ElementCreator ec = new ElementCreator(doc, null, null); | |
| 77 Element resp = ec.create("response"); | |
| 78 doc.appendChild(resp); | |
| 79 | |
| 80 return doc; | |
| 81 } | |
| 82 | |
| 83 | |
| 84 protected String extractUuid(Document data) { | |
| 85 return XMLUtils.xpathString( | |
| 86 data, XPATH_ARTIFACT_UUID, ArtifactNamespaceContext.INSTANCE); | |
| 87 } | |
| 88 | |
| 89 | |
| 90 protected byte[] extractData(Document data) { | |
| 91 String b64Data = XMLUtils.xpathString( | |
| 92 data, XPATH_DATA, ArtifactNamespaceContext.INSTANCE); | |
| 93 | |
| 94 if (b64Data != null && b64Data != "") { | |
| 95 byte[] fileData = Base64.decodeBase64(b64Data); | |
| 96 return fileData; | |
| 97 } | |
| 98 return null; | |
| 99 } | |
| 100 } |