2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.data.impl.codec.xml;
10 import com.google.common.base.Preconditions;
12 import javax.annotation.Nonnull;
13 import org.opendaylight.yangtools.yang.common.QName;
14 import org.opendaylight.yangtools.yang.data.util.AbstractStringIdentityrefCodec;
15 import org.opendaylight.yangtools.yang.model.api.Module;
16 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
17 import org.w3c.dom.Element;
19 final class ElementIdentityrefParser extends AbstractStringIdentityrefCodec {
20 private final SchemaContext schema;
21 private final Element element;
23 ElementIdentityrefParser(final SchemaContext schema, final Element element) {
24 this.element = Preconditions.checkNotNull(element);
25 this.schema = Preconditions.checkNotNull(schema);
29 protected String prefixForNamespace(@Nonnull final URI namespace) {
30 return element.lookupPrefix(namespace.toString());
34 protected QName createQName(@Nonnull final String prefix, @Nonnull final String localName) {
35 final String namespace = element.lookupNamespaceURI(!prefix.isEmpty() ? prefix : null);
36 Preconditions.checkArgument(namespace != null, "Failed to lookup prefix %s", prefix);
38 final URI ns = URI.create(namespace);
39 final Module module = schema.findModuleByNamespaceAndRevision(ns, null);
40 Preconditions.checkArgument(module != null, "Namespace %s is not owned by a module", ns);
41 return QName.create(module.getQNameModule(), localName);