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/*
 * 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.trino.hdfs.authentication;

import com.google.inject.Inject;
import io.trino.spi.security.ConnectorIdentity;

import java.io.IOException;
import java.io.InterruptedIOException;

import static java.util.Objects.requireNonNull;

public class DirectHdfsAuthentication
        implements HdfsAuthentication
{
    private final HadoopAuthentication hadoopAuthentication;

    @Inject
    public DirectHdfsAuthentication(@ForHdfs HadoopAuthentication hadoopAuthentication)
    {
        this.hadoopAuthentication = requireNonNull(hadoopAuthentication);
    }

    @Override
    public  T doAs(ConnectorIdentity identity, ExceptionAction action)
            throws IOException
    {
        try {
            return hadoopAuthentication.getUserGroupInformation().callAs(action::run);
        }
        catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new InterruptedIOException();
        }
    }
}