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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.hadoop.security;
import org.elasticsearch.hadoop.EsHadoopIllegalArgumentException;
import org.elasticsearch.hadoop.cfg.ConfigurationOptions;
import org.elasticsearch.hadoop.cfg.Settings;
import org.elasticsearch.hadoop.serialization.SettingsAware;
import org.elasticsearch.hadoop.util.ObjectUtils;
/**
* Provides a platform independent way of retrieving the currently running user.
*/
public abstract class UserProvider implements SettingsAware {
public static UserProvider create(Settings settings) {
String className = settings.getSecurityUserProviderClass();
if (className == null) {
throw new EsHadoopIllegalArgumentException("Could not locate classname for UserProvider. One must be set with " +
ConfigurationOptions.ES_SECURITY_USER_PROVIDER_CLASS);
}
return ObjectUtils.instantiate(className, settings);
}
protected Settings settings;
protected Settings getSettings() {
return settings;
}
@Override
public void setSettings(Settings settings) {
this.settings = settings;
}
public boolean isEsKerberosEnabled() {
return settings.getSecurityAuthenticationMethod().equals(AuthenticationMethod.KERBEROS);
}
public abstract User getUser();
}