annotate flys-client/src/main/java/de/intevation/flys/client/server/FLYSArtifactCreator.java @ 227:7f7f6d2c4b2c

We can now distinuish between different artifact types based on its name in the DESCRIBE. The ArtifactCreator returns concrete instances of Artifacts now. flys-client/trunk@1673 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 12 Apr 2011 13:46:33 +0000
parents f8a5f2c5e2b7
children c9549074ecd1
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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 import de.intevation.flys.client.shared.model.WINFOArtifact;
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15 /**
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16 * An implementation of an {@link ArtifactCreator}. This class uses the document
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17 * that is returned by the artifact server to parse important information (like
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18 * uuid, hash) and returns a new {@link Artifact} instance.
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19 *
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20 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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21 */
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22 public class FLYSArtifactCreator implements ArtifactCreator {
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24 /** The XPath to the artifact's uuid.*/
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25 public static final String XPATH_UUID = "/art:result/art:uuid/@art:value";
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27 /** The XPath to the artifact's hash value.*/
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28 public static final String XPATH_HASH = "/art:result/art:hash/@art:value";
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30 /** The XPath to the artifact's name value.*/
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31 public static final String XPATH_NAME = "/art:result/art:name/@art:value";
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34 /**
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35 * Creates a new instance of an {@link ArtifactCreator}.
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36 */
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37 public FLYSArtifactCreator() {
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38 }
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41 /**
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42 * This concreate implementation returns an instance of {@link Artifact}
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43 * that is used in the FLYS GWT Client code.
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44 *
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45 * @param doc A document that describes the artifact that has been created
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46 * in the artifact server.
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47 *
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48 * @return an instance if {@link Artifact}.
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49 */
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50 public Object create(Document doc) {
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51 Artifact artifact = extractArtifact(doc);
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52 artifact.setArtifactDescription(
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53 ArtifactDescriptionFactory.createArtifactDescription(doc));
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55 return artifact;
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56 }
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59 /**
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60 * This method extracts the UUID und HASH information of the returned
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61 * artifact document.
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62 *
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63 * @param doc The result of the CREATE operation.
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64 *
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65 * @return an instance of an {@link Artifact}.
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66 */
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67 protected Artifact extractArtifact(Document doc) {
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68 System.out.println("FLYSArtifactCreator - extractArtifact()");
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70 String uuid = XMLUtils.xpathString(
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71 doc, XPATH_UUID, ArtifactNamespaceContext.INSTANCE);
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73 String hash = XMLUtils.xpathString(
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74 doc, XPATH_HASH, ArtifactNamespaceContext.INSTANCE);
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76 String name = XMLUtils.xpathString(
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77 doc, XPATH_NAME, ArtifactNamespaceContext.INSTANCE);
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79 System.out.println("NEW Artifact UUID: " + uuid);
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80 System.out.println("NEW Artifact HASH: " + hash);
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81 System.out.println("NEW Artifact NAME: " + name);
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83 if (name == null) {
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84 return new DefaultArtifact(uuid, hash);
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85 }
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87 name = name.trim();
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 16
diff changeset
89 if (name.length() > 0 && name.equals("winfo")) {
7f7f6d2c4b2c We can now distinuish between different artifact types based on its name in the DESCRIBE. The ArtifactCreator returns concrete instances of Artifacts now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 16
diff changeset
90 System.out.println("+++++ NEW WINFO ARTIFACT.");
7f7f6d2c4b2c We can now distinuish between different artifact types based on its name in the DESCRIBE. The ArtifactCreator returns concrete instances of Artifacts now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 16
diff changeset
91 return new WINFOArtifact(uuid, hash);
7f7f6d2c4b2c We can now distinuish between different artifact types based on its name in the DESCRIBE. The ArtifactCreator returns concrete instances of Artifacts now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 16
diff changeset
92 }
16
f8a5f2c5e2b7 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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 14
diff changeset
93
f8a5f2c5e2b7 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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 14
diff changeset
94 return new DefaultArtifact(uuid, hash);
14
fe2f4d1dd784 Integrated the httpclient for the communication between client and server. It is now possible to create a new WINFO artifact.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
95 }
fe2f4d1dd784 Integrated the httpclient for the communication between client and server. It is now possible to create a new WINFO artifact.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
96 }
fe2f4d1dd784 Integrated the httpclient for the communication between client and server. It is now possible to create a new WINFO artifact.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
97 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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