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annotate artifacts-common/src/main/java/de/intevation/artifacts/common/ArtifactNamespaceContext.java @ 353:33d7a6da1a05

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Extended CallContext to also act as a blackboard/service broker. artifacts/trunk@3331 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 30 Nov 2011 08:24:55 +0000
parents 0344a20f8a93
children
rev   line source
113
0344a20f8a93 Added the ArtifactNamespaceContext and a ClientProtocolUtils that helps working with the artifact protocol.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.artifacts.common;
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10
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11 import java.util.Iterator;
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12
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13 import javax.xml.XMLConstants;
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14
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15 import javax.xml.namespace.NamespaceContext;
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16
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17 /**
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18 * The namespace used in artifact documents.
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19 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
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20 */
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21 public class ArtifactNamespaceContext
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22 implements NamespaceContext
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23 {
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24 /**
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25 * The URI of the namespace of the artifacts.
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26 */
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27 public final static String NAMESPACE_URI =
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28 "http://www.intevation.de/2009/artifacts";
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29
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30 /**
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31 * The XML prefix for the artifacts namespace.
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32 */
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33 public final static String NAMESPACE_PREFIX = "art";
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34
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35 /**
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36 * Final instance to be easily used to avoid creation
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37 * of instances.
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38 */
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39 public static final ArtifactNamespaceContext INSTANCE =
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40 new ArtifactNamespaceContext();
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41
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42 /**
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43 * The default constructor.
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44 */
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45 public ArtifactNamespaceContext() {
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46 }
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47
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48 /**
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49 * @see javax.xml.namespace.NamespaceContext#getNamespaceURI(String)
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50 * @param prefix The prefix
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51 * @return The corresponing URI
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52 */
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53 public String getNamespaceURI(String prefix) {
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54
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55 if (prefix == null) {
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56 throw new NullPointerException("Null prefix");
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57 }
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58
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59 if (NAMESPACE_PREFIX.equals(prefix)) {
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60 return NAMESPACE_URI;
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61 }
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62
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63 if ("xml".equals(prefix)) {
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64 return XMLConstants.XML_NS_URI;
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65 }
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66
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67 return XMLConstants.NULL_NS_URI;
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68 }
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69
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70 /**
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71 * @see javax.xml.namespace.NamespaceContext#getPrefix(String)
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72 * @param uri The URI
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73 * @return nothing.
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74 * @throws java.lang.UnsupportedOperationException
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75 */
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76 public String getPrefix(String uri) {
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77 throw new UnsupportedOperationException();
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78 }
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79
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80 /**
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81 * @see javax.xml.namespace.NamespaceContext#getPrefixes(java.lang.String)
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82 * @param uri The URI
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83 * @return nothing
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84 * @throws java.lang.UnsupportedOperationException
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85 */
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86 public Iterator getPrefixes(String uri) {
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87 throw new UnsupportedOperationException();
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88 }
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89 }
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90 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org