Mercurial > dive4elements > framework
diff artifacts-common/src/main/java/de/intevation/artifacts/common/ArtifactNamespaceContext.java @ 113:0344a20f8a93
Added the ArtifactNamespaceContext and a ClientProtocolUtils that helps working with the artifact protocol.
artifacts/trunk@1318 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 16 Feb 2011 15:26:38 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifacts-common/src/main/java/de/intevation/artifacts/common/ArtifactNamespaceContext.java Wed Feb 16 15:26:38 2011 +0000 @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2010 by Intevation GmbH + * + * This program is free software under the LGPL (>=v2.1) + * Read the file LGPL.txt coming with the software for details + * or visit http://www.gnu.org/licenses/ if it does not exist. + */ + +package de.intevation.artifacts.common; + +import java.util.Iterator; + +import javax.xml.XMLConstants; + +import javax.xml.namespace.NamespaceContext; + +/** + * The namespace used in artifact documents. + * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a> + */ +public class ArtifactNamespaceContext +implements NamespaceContext +{ + /** + * The URI of the namespace of the artifacts. + */ + public final static String NAMESPACE_URI = + "http://www.intevation.de/2009/artifacts"; + + /** + * The XML prefix for the artifacts namespace. + */ + public final static String NAMESPACE_PREFIX = "art"; + + /** + * Final instance to be easily used to avoid creation + * of instances. + */ + public static final ArtifactNamespaceContext INSTANCE = + new ArtifactNamespaceContext(); + + /** + * The default constructor. + */ + public ArtifactNamespaceContext() { + } + + /** + * @see javax.xml.namespace.NamespaceContext#getNamespaceURI(String) + * @param prefix The prefix + * @return The corresponing URI + */ + public String getNamespaceURI(String prefix) { + + if (prefix == null) { + throw new NullPointerException("Null prefix"); + } + + if (NAMESPACE_PREFIX.equals(prefix)) { + return NAMESPACE_URI; + } + + if ("xml".equals(prefix)) { + return XMLConstants.XML_NS_URI; + } + + return XMLConstants.NULL_NS_URI; + } + + /** + * @see javax.xml.namespace.NamespaceContext#getPrefix(String) + * @param uri The URI + * @return nothing. + * @throws java.lang.UnsupportedOperationException + */ + public String getPrefix(String uri) { + throw new UnsupportedOperationException(); + } + + /** + * @see javax.xml.namespace.NamespaceContext#getPrefixes(java.lang.String) + * @param uri The URI + * @return nothing + * @throws java.lang.UnsupportedOperationException + */ + public Iterator getPrefixes(String uri) { + throw new UnsupportedOperationException(); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :