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annotate flys-client/src/main/java/de/intevation/flys/client/server/FLYSArtifactCreator.java @ 16:f8a5f2c5e2b7

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The DESCRIBE document returned by the artifact server is parsed after calling create() of the artifact service and a new Artifact is created with an ArtifactDescription that contains the UUID, HASH, und the current Data. flys-client/trunk@1329 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 18 Feb 2011 14:23:12 +0000
parents fe2f4d1dd784
children 7f7f6d2c4b2c
rev   line source
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1 package de.intevation.flys.client.server;
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3 import org.w3c.dom.Document;
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5 import de.intevation.artifacts.common.utils.XMLUtils;
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6 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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8 import de.intevation.artifacts.httpclient.utils.ArtifactCreator;
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10 import de.intevation.flys.client.shared.model.Artifact;
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11 import de.intevation.flys.client.shared.model.DefaultArtifact;
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12
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14 /**
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15 * An implementation of an {@link ArtifactCreator}. This class uses the document
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16 * that is returned by the artifact server to parse important information (like
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17 * uuid, hash) and returns a new {@link Artifact} instance.
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18 *
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19 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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20 */
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21 public class FLYSArtifactCreator implements ArtifactCreator {
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23 /** The XPath to the artifact's uuid.*/
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24 public static final String XPATH_UUID = "/art:result/art:uuid/@art:value";
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26 /** The XPath to the artifact's hash value.*/
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27 public static final String XPATH_HASH = "/art:result/art:hash/@art:value";
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30 /**
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31 * Creates a new instance of an {@link ArtifactCreator}.
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32 */
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33 public FLYSArtifactCreator() {
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34 }
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37 /**
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38 * This concreate implementation returns an instance of {@link Artifact}
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39 * that is used in the FLYS GWT Client code.
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40 *
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41 * @param doc A document that describes the artifact that has been created
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42 * in the artifact server.
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43 *
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44 * @return an instance if {@link Artifact}.
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45 */
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46 public Object create(Document doc) {
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47 Artifact artifact = extractArtifact(doc);
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48 artifact.setArtifactDescription(
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49 ArtifactDescriptionFactory.createArtifactDescription(doc));
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50
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51 return artifact;
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52 }
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55 /**
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56 * This method extracts the UUID und HASH information of the returned
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57 * artifact document.
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58 *
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59 * @param doc The result of the CREATE operation.
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60 *
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61 * @return an instance of an {@link Artifact}.
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62 */
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63 protected Artifact extractArtifact(Document doc) {
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64 System.out.println("FLYSArtifactCreator - extractArtifact()");
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66 String uuid = XMLUtils.xpathString(
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67 doc, XPATH_UUID, ArtifactNamespaceContext.INSTANCE);
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69 String hash = XMLUtils.xpathString(
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70 doc, XPATH_HASH, ArtifactNamespaceContext.INSTANCE);
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72 System.out.println("NEW Artifact UUID: " + uuid);
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73 System.out.println("NEW Artifact HASH: " + hash);
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75 return new DefaultArtifact(uuid, hash);
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org