io.hops.security.HopsGroupsWithFallBack.java Source code

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Here is the source code for io.hops.security.HopsGroupsWithFallBack.java

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/*
 * Copyright (C) 2015 hops.io.
 *
 * Licensed 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 io.hops.security;

import org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback;

import java.io.IOException;
import java.util.List;

public class HopsGroupsWithFallBack extends JniBasedUnixGroupsMappingWithFallback {

    @Override
    public List<String> getGroups(final String user) throws IOException {
        List<String> groups = UsersGroups.getGroups(user);

        if (groups != null)
            return groups;

        return super.getGroups(user);
    }

    @Override
    public void cacheGroupsRefresh() throws IOException {
        super.cacheGroupsRefresh();
        UsersGroups.clearCache();
    }

}