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.util;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.annotations.Beta;
13 import org.eclipse.jdt.annotation.NonNull;
14 import org.eclipse.jdt.annotation.Nullable;
15 import org.opendaylight.yangtools.yang.common.QName;
16 import org.opendaylight.yangtools.yang.model.api.Module;
19 * Extension of {@link AbstractStringInstanceIdentifierCodec}, which instantiates
20 * QNames by first resolving the namespace and then looking the target namespace
21 * in the list of currently-subscribed modules.
24 public abstract class AbstractModuleStringInstanceIdentifierCodec extends AbstractStringInstanceIdentifierCodec {
26 * Resolve a string prefix into the corresponding module.
28 * @param prefix Prefix
29 * @return module mapped to prefix, or null if the module cannot be resolved
31 protected abstract @Nullable Module moduleForPrefix(@NonNull String prefix);
34 protected final QName createQName(final String prefix, final String localName) {
35 final Module module = moduleForPrefix(prefix);
36 checkArgument(module != null, "Failed to lookup prefix %s", prefix);
37 return QName.create(module.getQNameModule(), localName);