/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.oak.jcr.namespace;
import java.util.Locale;
import javax.jcr.NamespaceException;
import javax.jcr.NamespaceRegistry;
import javax.jcr.RepositoryException;
import org.apache.jackrabbit.oak.api.CommitFailedException;
import org.apache.jackrabbit.oak.api.ContentSession;
import org.apache.jackrabbit.oak.plugins.name.NamespaceMappings;
/**
* Implementation of {@link NamespaceRegistry} based on {@link NamespaceMappings}.
*/
public class NamespaceRegistryImpl implements NamespaceRegistry {
private final NamespaceMappings nsMappings;
public NamespaceRegistryImpl(ContentSession session) {
this.nsMappings = new NamespaceMappings(session);
}
//--------------------------------------------------< NamespaceRegistry >---
@Override
public void registerNamespace(String prefix, String uri)
throws RepositoryException {
checkMutablePrefix(prefix);
checkMutableURI(uri);
try {
nsMappings.registerNamespace(prefix, uri);
} catch (CommitFailedException e) {
throw new RepositoryException(
"Failed to register namespace mapping from "
+ prefix + " to " + uri, e);
}
}
@Override
public void unregisterNamespace(String prefix) throws RepositoryException {
checkMutablePrefix(prefix);
try {
if (nsMappings.getURI(prefix) == null) {
throw new NamespaceException("prefix '" + prefix + "' is unused");
}
nsMappings.unregisterNamespace(prefix);
} catch (CommitFailedException e) {
throw new RepositoryException(
"Failed to unregister a namespace mapping with prefix "
+ prefix, e);
}
}
@Override
public String[] getPrefixes() throws RepositoryException {
try {
return nsMappings.getPrefixes();
} catch (RuntimeException e) {
throw new RepositoryException(
"Failed to retrieve registered namespace prefixes", e);
}
}
@Override
public String[] getURIs() throws RepositoryException {
try {
return nsMappings.getURIs();
} catch (RuntimeException e) {
throw new RepositoryException(
"Failed to retrieve registered namespace URIs", e);
}
}
@Override
public String getURI(String prefix) throws RepositoryException {
try {
String uri = nsMappings.getURI(prefix);
if (uri == null) {
throw new NamespaceException(
"No namespace registered for prefix " + prefix);
}
return uri;
} catch (RuntimeException e) {
throw new RepositoryException(
"Failed to retrieve the namespace URI for prefix "
+ prefix, e);
}
}
@Override
public String getPrefix(String uri) throws RepositoryException {
try {
String prefix = nsMappings.getPrefix(uri);
if (prefix == null) {
throw new NamespaceException(
"No namespace registered for prefix " + prefix);
}
return prefix;
} catch (RuntimeException e) {
throw new RepositoryException(
"Failed to retrieve the namespace prefix for URI "
+ uri, e);
}
}
private void checkMutablePrefix(String prefix) throws NamespaceException {
if ("jcr".equals(prefix) || "nt".equals(prefix) || "mix".equals(prefix) || "sv".equals(prefix)
|| prefix.toLowerCase(Locale.ENGLISH).startsWith("xml")) {
throw new NamespaceException("Can not map or remap prefix '" + prefix + "'");
}
}
private void checkMutableURI(String uri) throws NamespaceException {
if ("http://www.jcp.org/jcr/1.0".equals(uri) || "http://www.jcp.org/jcr/nt/1.0".equals(uri)
|| "http://www.jcp.org/jcr/mix/1.0".equals(uri) || "http://www.jcp.org/jcr/sv/1.0".equals(uri)) {
throw new NamespaceException("Can not map or remap uri '" + uri + "'");
}
}
}