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/*
* 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.catalina.users;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.RefAddr;
import javax.naming.Reference;
import javax.naming.spi.ObjectFactory;
/**
* <p>
* JNDI object creation factory for <code>MemoryUserDatabase</code> instances. This makes it convenient to configure a
* user database in the global JNDI resources associated with this Catalina instance, and then link to that resource for
* web applications that administer the contents of the user database.
* </p>
* <p>
* The <code>MemoryUserDatabase</code> instance is configured based on the following parameter values:
* </p>
* <ul>
* <li><strong>pathname</strong> - Absolute or relative (to the directory path specified by the
* <code>catalina.base</code> system property) pathname to the XML file from which our user information is loaded, and
* to which it is stored. [conf/tomcat-users.xml]</li>
* </ul>
*
* @author Craig R. McClanahan
*
* @since 4.1
*/
public class MemoryUserDatabaseFactory implements ObjectFactory {
// --------------------------------------------------------- Public Methods
/**
* <p>
* Create and return a new <code>MemoryUserDatabase</code> instance that has been configured according to the
* properties of the specified <code>Reference</code>. If the instance cannot be created, return <code>null</code>
* instead.
* </p>
*
* @param obj The possibly null object containing location or reference information that can be used in
* creating an object
* @param name The name of this object relative to <code>nameCtx</code>
* @param nameCtx The context relative to which the <code>name</code> parameter is specified, or
* <code>null</code> if <code>name</code> is relative to the default initial context
* @param environment The possibly null environment that is used in creating this object
*/
@Override
public Object getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment)
throws Exception {
// We only know how to deal with <code>javax.naming.Reference</code>s
// that specify a class name of "org.apache.catalina.UserDatabase"
if (!(obj instanceof Reference ref)) {
return null;
}
if (!"org.apache.catalina.UserDatabase".equals(ref.getClassName())) {
return null;
}
// Create and configure a MemoryUserDatabase instance based on the
// RefAddr values associated with this Reference
MemoryUserDatabase database = new MemoryUserDatabase(name.toString());
RefAddr ra = ref.get("pathname");
if (ra != null) {
database.setPathname(ra.getContent().toString());
}
ra = ref.get("readonly");
if (ra != null) {
database.setReadonly(Boolean.parseBoolean(ra.getContent().toString()));
}
ra = ref.get("watchSource");
if (ra != null) {
database.setWatchSource(Boolean.parseBoolean(ra.getContent().toString()));
}
// Return the configured database instance
database.open();
// Don't try something we know won't work
if (!database.getReadonly()) {
database.save();
}
return database;
}
}
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